AGC-4 DRH 4189340686 UK_2014.10.09

DESIGNER'S REFERENCE HANDBOOKAutomatic Genset Controller, AGC-4 ● ● ● ● ● Functional description Display unit and menu structure PID-controller Procedure for parameter setup Parameter list DEIF A/S · Frisenborgvej 33 · DK-7800 Skive · Tel.: +45 9614 9614 · Fax: +45 9614 9615 · [email protected] · www.deif.com isenborgvej 33 · DK-7800 Skive · Tel.: +45 9614 9614 · Fax: +45 9614 9615 · [email protected] · www.deif.com 14 9614 · Fax: +45 9614 9615 · [email protected] · www.deif.com Document no.: 4189340686G SW version: 4.40.x or later AGC-4 DRH 4189340686 UK 1. General information 1.1. Warnings, legal information and safety..................................................................................................7 1.1.1. Warnings and notes ......................................................................................................................7 1.1.2. Legal information and disclaimer ..................................................................................................7 1.1.3. Safety issues ................................................................................................................................7 1.1.4. Electrostatic discharge awareness ...............................................................................................7 1.1.5. Factory settings ............................................................................................................................7 1.2. About the Designer's Reference Handbook...........................................................................................8 1.2.1. General purpose ...........................................................................................................................8 1.2.2. Intended users ..............................................................................................................................8 1.2.3. Contents and overall structure ......................................................................................................8 2. General product information 2.1. Introduction.............................................................................................................................................9 2.2. Type of product......................................................................................................................................9 2.3. Options...................................................................................................................................................9 2.3.1. Options..........................................................................................................................................9 2.4. PC utility software warning.....................................................................................................................9 2.4.1. PC utility software warning............................................................................................................9 3. Functional descriptions 3.1. Standard functions...............................................................................................................................10 3.1.1. Standard functions.......................................................................................................................10 3.1.2. Operation modes.........................................................................................................................10 3.1.3. Engine control..............................................................................................................................10 3.1.4. Generator protection (ANSI)........................................................................................................10 3.1.5. Busbar protection (ANSI).............................................................................................................10 3.1.6. Display.........................................................................................................................................10 3.1.7. M-Logic........................................................................................................................................11 3.2. Terminal strip overview........................................................................................................................11 3.2.1. Slot #1, #2, #5 and #6..................................................................................................................12 3.2.2. Slot #3, #4, #7 and #8..................................................................................................................13 3.3. Measurement systems.........................................................................................................................14 3.3.1. Three-phase system....................................................................................................................14 3.3.2. Split phase system.......................................................................................................................15 3.3.3. Single phase system....................................................................................................................15 3.4. Applications..........................................................................................................................................16 3.4.1. Applications and genset modes...................................................................................................16 3.4.2. AMF (no back synchronisation)...................................................................................................17 3.4.3. AMF (with back synchronisation).................................................................................................17 3.4.4. Island operation...........................................................................................................................18 3.4.5. Fixed power/base load.................................................................................................................18 3.4.6. Ramp up with load steps.............................................................................................................20 3.4.7. Freeze power ramp......................................................................................................................20 3.4.8. Peak shaving...............................................................................................................................20 3.4.9. Load takeover..............................................................................................................................22 3.4.10. Mains power export (fixed power to mains)...............................................................................24 3.4.11. Mains transducer ......................................................................................................................25 3.5. Running mode description....................................................................................................................26 3.5.1. Semi-auto mode..........................................................................................................................26 3.5.2. Test mode....................................................................................................................................27 3.5.3. Simple test...................................................................................................................................28 3.5.4. Load test......................................................................................................................................28 3.5.5. Full test........................................................................................................................................28 3.5.6. Manual mode...............................................................................................................................28 3.5.7. Block mode..................................................................................................................................29 3.6. Single-line diagrams.............................................................................................................................30 3.6.1. Application illustration .................................................................................................................30 DEIF A/S Page 2 of 199 AGC-4 DRH 4189340686 UK 3.6.2. Automatic Mains Failure..............................................................................................................30 3.6.3. Island operation...........................................................................................................................31 3.6.4. Fixed power/base load.................................................................................................................31 3.6.5. Peak shaving...............................................................................................................................32 3.6.6. Load takeover..............................................................................................................................32 3.6.7. Mains power export.....................................................................................................................33 3.6.8. Multiple gensets, load sharing (option G3 required)....................................................................33 3.6.9. Multiple gensets, power management (option G5 required)........................................................34 3.7. Flowcharts............................................................................................................................................37 3.7.1. Mode shift....................................................................................................................................39 3.7.2. MB open sequence......................................................................................................................40 3.7.3. GB open sequence......................................................................................................................41 3.7.4. Stop sequence.............................................................................................................................42 3.7.5. Start sequence.............................................................................................................................43 3.7.6. MB close sequence.....................................................................................................................44 3.7.7. GB close sequence......................................................................................................................45 3.7.8. Fixed power.................................................................................................................................46 3.7.9. Load takeover..............................................................................................................................47 3.7.10. Island operation.........................................................................................................................48 3.7.11. Peak shaving.............................................................................................................................49 3.7.12. Mains power export...................................................................................................................50 3.7.13. Automatic Mains Failure............................................................................................................51 3.7.14. Test sequence...........................................................................................................................52 3.8. Sequences...........................................................................................................................................53 3.8.1. Start sequence.............................................................................................................................54 3.8.2. Start sequence conditions...........................................................................................................55 3.8.3. Running feedback........................................................................................................................56 3.8.4. Stop sequence.............................................................................................................................59 3.8.5. Breaker sequences......................................................................................................................61 3.8.6. AMF timers..................................................................................................................................62 4. Display unit and menu structure 4.1. Presentation.........................................................................................................................................65 4.2. Display unit (DU-2)...............................................................................................................................65 4.2.1. Push-button functions..................................................................................................................65 4.2.2. LED functions..............................................................................................................................66 4.3. Menu structure.....................................................................................................................................67 4.3.1. Entry window...............................................................................................................................67 4.3.2. View menu...................................................................................................................................68 4.3.3. Setup menu.................................................................................................................................69 4.4. Mode overview.....................................................................................................................................73 4.5. Mode selection.....................................................................................................................................73 4.6. Password..............................................................................................................................................75 4.6.1. Password.....................................................................................................................................75 4.6.2. Parameter access........................................................................................................................76 5. Additional functions 5.1. Start functions......................................................................................................................................77 5.1.1. Digital feedbacks.........................................................................................................................77 5.1.2. Analogue tacho feedback............................................................................................................78 5.1.3. Oil pressure.................................................................................................................................79 5.2. Breaker types.......................................................................................................................................80 5.3. Breaker spring load time......................................................................................................................81 5.3.1. Principle.......................................................................................................................................82 5.4. Alarm inhibit..........................................................................................................................................83 5.4.1. Run status (6160)........................................................................................................................85 5.5. Access lock..........................................................................................................................................85 5.6. Overlap.................................................................................................................................................86 5.7. Digital mains breaker control................................................................................................................87 DEIF A/S Page 3 of 199 ...........92 5......................................................................................99 5....................................................................28..............................................................................1..........................................................13.......................................12.....................................28....................27. Running signal......... Block swbd error (menu 6500).......................28............................26....................................................................1...........2................................................................................................................................................................ VDO fuel...........................98 5....................................................... Cos phi offsets................96 5..................................................................................................7...28...........................1.............19.....................................1...................................................................................93 5....8............... Examples........25........................28........................................................87 5............................9............................................................................................................................................................... Trip of NEL..............................................................................................................................13...............................121 5...................28.................................................22... Description.....108 5............................................24.................................................................... Functional description........................106 5...................................................................... Pt100/1000.89 5...................................................................................................................................... Power offsets.... Derate genset................................................................................................. Service timers...20... Summer/winter time.............................................3........................... Fail class.......................................................100 5..........111 5...............................110 5................... Fail class configuration.........11............................... Inhibit..........110 5.........................102 5............... Stop..111 5........................................................125 DEIF A/S Page 4 of 199 ..... Engine stopped............................................................................................... Switchboard error....................... Configuration.........................................................9....................................................................10................... Input configuration.................................106 5.12...........................................................3...105 5.......................... ventilation alarm.....................2...................................................109 5...........................................13..................................................................................................... Power and cos phi offsets.........115 5...........AGC-4 DRH 4189340686 UK 5.................................... Running output.............23.................100 5.................................28................................19........12...........................................................................112 5.......................................... Frequency-dependent droop........................................................22...... Battery test..................................... Input selection...............................................................14................. asymmetry).................15.8...................97 5.............................................11...........3..............................4.........13.....................................................................5.................................22............................................................................................................................................. Derate characteristic........................................1.. Master clock................................ Engine heater alarm.........................91 5...................................................................................26.13................ Compensation time....1.......................... Engine heater......................................................................... Stop swbd error (menu 6510)................................12........................19...............................16..........................1..................1...... 4-20 mA...22.................................................109 5....................................................106 5.........94 5........................................................................................................ Idle running......................................................................16..........................124 5............ Trip of non-essential load (NEL)......................................105 5..................................................................11....122 5............................ Auto configuration...........13..................................................................120 5........13...........................111 5.109 5................................................102 5........2.................. Outputs.................................................................16...98 5..................................................91 5..102 5.........91 5............28..........................22........ VDO water.................106 5.................... Digital inputs............1.....1......................95 5..........................................................................8....... Configuration of digital input.........................3........96 5.........28................................................................................ Fuel fill check............................27..........105 5................................................ Engine running...............1............................91 5...........................................................................................94 5......................................................................7............................................................. Idle speed flowcharts....15..................................114 5.......121 5..............2............ 0-40V DC.............................. VDO inputs... Start..................................4..................................122 5..............120 5...........................................................................................................17.....14...............................................................................................................................6.................88 5.2......... Ventilation. VDO oil.............16........................................................................28....96 5....................................121 5...................21.1....................................................99 5.................................2............................. Fuel pump logic....................17........ Illustration of configurable inputs....................................................91 5........................................................................2........................................................................................................................................................................................... Wire fail detection........................ Functional description...13................................ Fail class..................... Max...............................18......13..........................................................123 5....................................1.... Command timers...3................................... Derate parameters............ Not in auto.............121 5................................. Multi-inputs...............................21.............1....................................................................6....................4...........................................................................................107 5.............................121 5.. Battery asymmetry (6430 Batt...........23...........5........................97 5....................................... Vector group for step-up transformer .............................................................38...................................................................................................................................................................................................7................... Fan start delay.... Digital......48...43...............39....169 6..................................................140 5.......1..................34...................................................................... Texts in status line............................160 5................................................................29.............. Quick setup.................................................................................................................................................................................................... Manual mode..........29.................................................. Service menu......... Step-up and step-down transformer...........10.......157 5........................................129 5.......44..................................................45................................................................................ Fan start/stop.............................3............................................ Input for fan control.......5..33....................................................30.......................................1...................35................................................................129 5............................158 5....................................... Fan logic..................................................40........36......... Counters................... Description of PID controller............... I max.................29...............................................................................................................................2........146 5.................. Pulse input counters........................... Voltage-dependent (restraint) overcurrent................48......... Texts only related to power management (option G5).......................................................................142 5................................................................................................................................................... Fan failure................................................50...................................................................165 5........................................2.......................171 7.................................... Protections 6........1....37............................128 5..............1......28.........46.........159 5....48.45.....................48..................................... Event log..32............159 5.........158 5.................. Vector group for step-down transformer ....3......................................... Display........................2......................................................11.............161 5..........................44..... Fan parameters..1............................46..............................................................4................. How to change the nominal settings.........41...................1........................2.................. Demand of peak currents......................... M-Logic............................. Fan output............................48........42...................................................159 5...........2.. Nominal settings.............................35......................................142 5............................131 5......48.............................................33.............................. Scaling.............163 5.... Input function selection........146 5............................................................................. I thermal demand.....................48..........5.1......50..................................................................... Language selection..........................................165 5.................................................162 5.........161 5...................................................................................155 5.................. Semi-auto mode................. Parameter ID..................................................................................147 5.........................47.............................................................................AGC-4 DRH 4189340686 UK 5................129 5.......................................46.........143 5.......3..9.....................................................................................1.....................46......... Step-up transformer..........................169 6.........6..............................................................................................................8............................................................................48.... General.............1.........................................................140 5.35...........162 5......................... Fan priority (running hours).....1.................................................................138 5...................................140 5...............136 5...............142 5.........1.........................................49......................................................................144 5................139 5..166 5...............................................47.......................... USW communication............................................ General. Memory backup........................................................ Scaling........................................................................................................28..........172 DEIF A/S Page 5 of 199 ....................................................... Logs...........2....................................................................................130 5................................31.....47........ Oil renewal function.1..137 5............138 5........ Standard texts....... Fan priority update...................................... Setup of step-down transformer and measurement transformer ........... Manual governor and AVR control......... Fan running feedback .............................................................................................................46................154 5..29........................................................................................ Scaling of 4-20 mA inputs........................................................................ Setup of step-up transformer and measurement transformer ............................................48..........................................4..............................................166 6...146 5..........1..........138 5................136 5..........................................163 5................................................................................................................................................................................................................................ Auto and test mode.....32...........146 5.............................130 5..........144 5.. Internal battery.....................................................48....46..................125 5...........................1..............................................32........................................................................................................................................................... demand.............132 5................................................................................................................................. Differential measurement..........................................................................................................129 5....................................................................................... PID controller 7.. GSM communication........................................................................................................... Differential measurement.............2......................135 5................ kWh/kVArh counters........... ..................6..................................179 7............................................................................4.....4...................................................... Flowchart 1............................................4............................................ Droop mode........................................................................................................................................4................................................................................... High droop setting.....................5........................................................................................181 7............................................................................4.......................................................................................190 8....................2....................191 8................. Load picture after synchronising..............................................3.....4.......... Dynamic synchronisation....................174 7.......2..178 7.............................8..4......................................................5...........................................3...............................................................................3.........................1.......................3...........189 8..........................................................................................1......................4. Integral regulator.3...................8....................................3.....................................................................3............. Adjustments....5.......................................................................................................................................................... Load picture after synchronisation... "Close before excitation" failure................................................................................................................ GB handling...................................1...........184 8............................8..............................................................................176 7.............4...................................................................................2...........................................................8..................... Flowchart 2... Relay control........182 7.............. Compensation for isochronous governors.............. Controllers.......181 7..........185 8...........174 7....2............. Close signal.................................175 7..............173 7..............................AGC-4 DRH 4189340686 UK 7...................3................ Differential regulator.....................................................................................................1.1...............................195 8...1..............4...............189 8...197 9.183 7............................................................... Principle and setup .............................7..... Principle drawing...........................................194 8..8.......................5............... GB closing before excitation...................181 7....... Voltage droop example ........3.................................................... Close signal....187 8...... Proportional regulator.................................... Inhibit conditions before synchronising mains breaker.............................................183 7..........192 8.1................................... Breaker sequence......194 8.2.............................................................................199 DEIF A/S Page 6 of 199 .2............................................................8............ TB handling (option G5)..... Signal length........................................................................................................ Related parameters.....7.......... Relay adjustments...........................................2............................................... Synchronisation 8.............172 7...........................3.............2.....................175 7................................................................ Synchronisation principles................................................................................................. Parameter list 9.................................................7...... Synchronising controller................................................................... Phase controller............................................4...186 8.................189 8................................................ Low droop setting...... Genset start actions.....................2....................................................2.................186 8....188 8................. Static synchronisation.........193 8............177 7..6........................................................... Separate synchronising relay............................................................................................4..... Speed range.....4...............2............................................................... Load share controller.. Dynamic regulation area.................3..........................1......................185 8.............................................................180 7...............................................................4................................................................................................ Adjustments..196 8........................4......................... To ensure that these are noticed.1. If opened anyway.1.3 Safety issues Installing and operating the Multi-line 2 unit may imply work with dangerous currents and voltages. which could result in death. 1. 1. The Multi-line 2 unit is not to be opened by unauthorised personnel. 1. Therefore. General information 1. these precautions are no longer necessary. Once the unit is installed and connected. Warnings Warnings indicate a potentially dangerous situation. DEIF A/S Page 7 of 199 . Be aware of the hazardous live currents and voltages. Disclaimer DEIF A/S reserves the right to change any of the contents of this document without prior notice. Notes Notes provide general information. personal injury or damaged equipment.1 Warnings and notes Throughout this document. legal information and safety 1. which will be helpful for the reader to bear in mind.1 Warnings.AGC-4 DRH 4189340686 UK General information 1. 1.5 Factory settings The Multi-line 2 unit is delivered from factory with certain factory settings.1.1.2 Legal information and disclaimer DEIF takes no responsibility for installation or operation of the generator set.4 Electrostatic discharge awareness Sufficient care must be taken to protect the terminal against static discharges during the installation. Do not touch any AC measurement inputs as this could lead to injury or death. the warranty will be lost. they will be highlighted as follows in order to separate them from the general text. These are based on average values and are not necessarily the correct settings for matching the engine/generator set in question. the company responsible for the installation or the operation of the set must be contacted. If there is any doubt about how to install or operate the engine/generator controlled by the Multi-line 2 unit.1. if certain guidelines are not followed. Precautions must be taken to check the settings before running the engine/generator set. a number of warnings and notes with helpful user information will be presented. the installation should only be carried out by authorised personnel who understand the risks involved in working with live electrical equipment. On the basis of this document.AGC-4 DRH 4189340686 UK General information 1. detailed electrical drawings. presentation of display unit and menu structure. information about the PID controller. the electrician may use these installation instructions himself. This document also offers the user the information he needs in order to successfully set up the parameters needed in his specific application.g. DEIF A/S Page 8 of 199 .2. Please make sure to read this document before starting to work with the Multi-line 2 unit and the genset to be controlled. each chapter will begin from the top of a new page. Failure to do this could result in human injury or damage to the equipment. and in order to make the structure simple and easy to use.2 Intended users This Designer's Reference Handbook is mainly intended for the panel builder designer in charge. 1. the panel builder designer will give the electrician the information he needs in order to install the Multi-line 2 unit.1 General purpose This Designer's Reference Handbook mainly includes functional descriptions.2. e.2 About the Designer's Reference Handbook 1.2. 1.3 Contents and overall structure This document is divided into chapters. the procedure for parameter setup and reference to parameter lists. The general purpose of this document is to provide useful overall information about the functionality of the unit and its applications. In some cases. The concept of the AGC is to offer a cost-effective solution to genset builders. Please see www.4. DEIF A/S Page 9 of 199 . Multi-line 2 is a complete range of multi-function generator protection and control products integrating all the functions you need into one compact and attractive solution. 2.4 PC utility software warning 2. various outputs.1 Introduction This chapter will deal with the unit in general and its place in the DEIF product range.AGC-4 DRH 4189340686 UK General product information 2.deif.com 2. A complete list of available options is included in the data sheet. General product information 2. additional operator display.3.3 Options 2. 2. the standard functions can be supplemented with a variety of optional functions. power management. serial communication. The AGC is part of the DEIF Multi-line 2 product family. It contains all necessary 3-phase measuring circuits.1 Options The Multi-line 2 product range consists of different basic versions which can be supplemented with the flexible options needed to provide the optimum solution. voltage/VAr/PF control. The options cover e. make sure that it is safe to remote-control the genset. various protections for generator. Being part of the Multi-line product family. and all values and alarms are presented on the LCD display. etc.1 PC utility software warning It is possible to remote-control the genset from the PC utility software or M-Vision by use of a modem. To avoid personal injury. who need a flexible generator protection and control unit for medium to large genset applications.g.2 Type of product The Automatic Genset Controller is a micro-processor based control unit containing all necessary functions for protection and control of a genset. busbar and mains. 4 Generator protection (ANSI) ● ● ● ● ● ● ● ● ● ● ● ● 2 x reverse power (32) 5 x overload (32) 6 x overcurrent (50/51) 2 x overvoltage (59) 3 x undervoltage (27) 3 x over-/underfrequency (81) Voltage-dependent overcurrent (51V) Current/voltage unbalance (60) Loss of excitation/overexcitation (40/32RV) Non-essential load/load shedding. 4-20 mA.1.1. 3 levels (I. Pt100.1.1 Standard functions This chapter includes functional descriptions of standard functions as well as illustrations of the relevant application types.5 Busbar protection (ANSI) ● ● ● ● ● 3 x overvoltage (59) 4 x undervoltage (27) 3 x overfrequency (81) 4 x underfrequency (81) Voltage unbalance (60) 3.3 Engine control ● ● ● Start/stop sequences Run and stop coil Relay outputs for governor control 3. Hz.1. Pt1000 or VDO) Digital inputs 3. 3.2 Operation modes ● ● ● ● ● ● Automatic Mains Failure Island operation Fixed power/base load Peak shaving Load takeover Mains power export 3.AGC-4 DRH 4189340686 UK Functional descriptions 3. Flowcharts and single-line diagrams will be used in order to simplify the information.6 Display ● ● ● ● Prepared for remote mounting Push-buttons for start and stop Push-buttons for breaker operations Status texts DEIF A/S Page 10 of 199 . Functional descriptions 3. 0-40V DC.1 Standard functions 3. P>.1.1. P>>) Multi-inputs (digital. The standard functions are listed in the following paragraphs. 7 M-Logic ● ● ● Simple logic configuration tool Selectable input events Selectable output commands 3.2 Terminal strip overview The terminal strip overview shows I/Os for selectable standard and optional hardware. Refer to the input/output lists in the installation instructions for detailed information about the I/Os of the specific options.AGC-4 DRH 4189340686 UK Functional descriptions 3.1. Refer to the data sheet for accurate information about possible configurations for the AGC. DEIF A/S Page 11 of 199 . 1 Slot #1. #2.AGC-4 DRH 4189340686 UK Functional descriptions 3.2. #5 and #6 DEIF A/S Page 12 of 199 . DEIF A/S Page 13 of 199 . For a detailed description of these options. please refer to the option descriptions. #7 and #8 The hardware shown in slot #3 is option M12 and G3.2 Slot #3.AGC-4 DRH 4189340686 UK Functional descriptions 3. #4.2. When in doubt. For further reference. voltage Phase-phase voltage of the generator 400V AC 6041 G transformer Primary voltage of the G voltage transformer (if installed) UNOM 6042 G transformer Secondary voltage of the G voltage transformer (if installed) UNOM 6051 BB transformer Primary voltage of the BB voltage transformer (if installed) UNOM 6052 BB transformer Secondary voltage of the BB voltage transformer (if installed) UNOM 6053 BB nom.AGC-4 DRH 4189340686 UK Functional descriptions 3. single phase and split phase. contact the switchboard manufacturer for information about the required adjustment. which can be enabled individually in this measurement system.3 Measurement systems The AGC-4 is designed for measurement of voltages between 100 and 690V AC. In menu 9130. 3 phase L1L2L3 RESET Use the SAVE or push-button to choose between 1-phase. The menu for adjustment of the measurement principle looks like this: Automatic Gen-set Controller multi-line AGC G 0 0 0V 9130 AC config. Press the JUMP push-button and go to menu 9130 or use the USW. all three phases must be connected to the AGC-4. and then press push-button to save the new setting. DEIF A/S Page 14 of 199 . Press the until SAVE is underscored. Configure the AGC-4 to match the correct measuring system. 2-phase or 3-phase.1 Three-phase system When the AGC-4 is delivered from the factory. When this principle is used.3. The following adjustments must be made to make the system ready for the three-phase measuring (example 400/230V AC): Setting Adjustment Description Adjust to value 6004 G nom. voltage Phase-phase voltage of the busbar UNOM The AGC-4 has two sets of BB transformer settings. the three-phase system is selected. the measurement principle can be changed between three-phase. 3. the AC wiring diagrams are shown in the Installation Instructions. The settings can be changed using the display. voltage Phase-neutral voltage of the generator 230V AC 6041 G transformer Primary voltage of the G voltage transformer (if installed) UNOM x √3 6042 G transformer Secondary voltage of the G voltage transformer (if installed) UNOM x √3 6051 BB transformer Primary voltage of the BB voltage transformer (if installed) UNOM x √3 6052 BB transformer Secondary voltage of the BB voltage transformer (if installed) UNOM x √3 6053 BB nom. voltage Phase-phase voltage of the busbar UNOM x √3 The voltage alarms refer to UNOM (230V AC). voltage Phase-phase voltage of the busbar UNOM The measurement UL3L1 shows 240V AC. voltage Phase-phase voltage of the generator 120V AC 6041 G transformer Primary voltage of the G voltage transformer (if installed) UNOM 6042 G transformer Secondary voltage of the G voltage transformer (if installed) UNOM 6051 BB transformer Primary voltage of the BB voltage transformer (if installed) UNOM 6052 BB transformer Secondary voltage of the BB voltage transformer (if installed) UNOM 6053 BB nom. Split phase is possible between L1-L2 or L1-L3. 3. The phase angle between L1 and L3 is 180 degrees.3 Single phase system The single phase system consists of one phase and the neutral.2 Split phase system This is a special application where two phases and neutral are connected to the AGC-4. and UL3L1 does not activate any alarm. The AGC-4 shows phases L1 and L3 in the display. The AGC-4 has two sets of BB transformer settings.3. The voltage alarm setpoints refer to the nominal voltage 120V AC. which can be enabled individually in this measurement system. The following adjustments must be made to make the system ready for the split phase measuring (example 240/120V AC): Setting Adjustment Description Adjust to value 6004 G nom. DEIF A/S Page 15 of 199 .3. The following adjustments must be made to make the system ready for the single phase measuring (example 230V AC): Setting Adjustment Description Adjust to value 6004 G nom.AGC-4 DRH 4189340686 UK Functional descriptions 3. load sharing Requires option G3 Multiple gensets.) X X X X X Island operation X X X X X Fixed power/base load X X X X X Peak shaving X X X X X Load takeover X X X X X Mains power export X X X X X Multiple gensets.AGC-4 DRH 4189340686 UK Functional descriptions The AGC-4 has two sets of BB transformer settings. DEIF A/S Page 16 of 199 . It is not suitable for reading from beginning to end.4 Applications 3.) X X X X X Automatic Mains Failure (with back sync. 3. Application Comment Automatic Mains Failure (no back sync.) Standard Island operation Standard Fixed power/base load Standard Peak shaving Standard Load takeover Standard Mains power export (fixed power to mains) Standard Multiple gensets.4.) Standard Automatic Mains Failure (with back sync. which can be enabled individually in this measurement system. power management Requires option G5 Remote maintenance Requires option H8. power management X X (X) X X Remote maintenance X X For a general description of the available running modes. The unit can be used for the applications listed in the table below. load sharing (G3) X X X X X Multiple gensets.x and a remote maintenance box from DEIF A/S Genset mode Running mode Auto Semi Test Man Block Automatic Mains Failure (no back sync.1 Applications and genset modes This section about applications is to be used for reference using the particular genset mode as starting point. please refer to the chapter "Running mode description". the unit will use the nominal frequency as the setpoint for the speed governor.4. When the generator is paralleled to the mains. The switching back to mains supply is done without back synchronisation when the adjusted "Mains OK delay" has expired. the generator breaker and the mains breaker will never be closed at the same time for a longer period than the adjusted "Overlap" time. and the mains breaker is open. the governor regulation will no longer be active. It is possible to adjust the unit to change to genset operation in two different ways. It is possible to adjust the unit to change to genset operation in two different ways: 1. DEIF A/S Page 17 of 199 . If AVR control (option D1) is selected. If AVR control (option D1) is selected. 3. Then the genset cools down and stops. Semi-auto mode description When the generator breaker is closed. The mains breaker will remain closed until the genset is running. 2. In both cases. The mains breaker will be opened at genset start-up. In that case. the unit will use the nominal frequency as the setpoint for the speed governor.3 AMF (with back synchronisation) Auto mode description The unit automatically starts the genset and switches to generator supply at a mains failure after an adjustable delay time. and the genset voltage and frequency is OK.4. the nominal voltage is used as the setpoint. the unit will switch back to mains supply and cool down and stop the genset. When the mains returns. then the nominal voltage is used as setpoint. The automatic mains failure mode can be combined with the "Overlap" function. In both cases. the generator breaker will be closed when the generator voltage and frequency is OK. the generator breaker will be closed when the generator voltage and frequency is OK. then the setpoint will be the adjusted power factor (7050 Fixed power set). 1. and the genset voltage and frequency is OK. the unit will synchronise the mains breaker to the busbar when the "Mains OK delay" has expired. please refer to the chapter "Running mode description".2 AMF (no back synchronisation) Auto mode description The unit automatically starts the genset and switches to generator supply at a mains failure after an adjustable delay time. When the mains returns. 2. Semi-auto mode description When the generator breaker is closed and the mains breaker is opened. For a general description of the available running modes. The mains breaker will be opened at genset start-up. The mains breaker will remain closed until the genset is running.AGC-4 DRH 4189340686 UK Functional descriptions 3. If AVR control (option D1) is selected. and the mains breaker is open. The start and stop commands are used by activating and deactivating a digital input or with the time-dependent start/stop commands. the unit ramps up the load to the setpoint level. 3. If the time-dependent start/stop commands are to be used. the genset is deloaded and stopped after the cooling down period.4. Semi-auto mode description When the generator breaker is closed. 3. kW Stop signal Start signal t tRAMP-UP Diagram. If the time-dependent start/stop commands are to be used. then the auto mode must also be used. After the generator breaker closure. the generator breaker is tripped. When the stop command is given.5 Fixed power/base load Auto mode description The unit automatically starts the genset and synchronises to the mains when the digital input "auto start/stop" is activated. the nominal voltage is used as setpoint. please refer to the chapter "Running mode description".Functional descriptions AGC-4 DRH 4189340686 UK For a general description of the available running modes. and the genset will be stopped after a cooling down period. The start and stop commands are used by activating and deactivating a digital input or with the time-dependent start/stop commands.4.4 Island operation Auto mode description The unit automatically starts the genset and closes the generator breaker at a digital start command. If AVR control (option D1) is selected. then the auto mode must also be used. the unit will use the nominal frequency as setpoint for the speed governor.principle DEIF A/S Page 18 of 199 . fixed power . For a general description of the available running modes. please refer to the chapter "Running mode description". When the stop command is given. If AVR control (option D1) is selected. then the setpoint will be the adjusted power (7050 Fixed power set). Enable: Enable load ramp steps. step 4 Delay. Delay: When this delay has expired. step 1 2610 Power ramp up Ramp speed: Defines the slope of the ramp up. Steps: Defines the number of steps related to the delay point setting. read From load share line GB closed Page 19 of 199 . step 5 Delay. Delay point: At this point. step 3 Delay. If AVR control (option D1) is selected. the ramp up is cancelled until the delay has expired. step 2 Power [kWh] Delay. the unit will use the nominal frequency as the setpoint for the speed governor. the generator power will be increased to the fixed power setpoint. When the generator is paralleled to the mains. the nominal voltage is used as setpoint. the ramp up is continued from the delay point. Setpoints related to fixed power Delay.AGC-4 DRH 4189340686 UK Functional descriptions Semi-auto mode description When the generator breaker is closed and the mains breaker is opened. Stop signal Power Set point Power ramp [%/s] DEIF A/S Ramp down Time [sec] Ramp up. When the load drops below the maximum mains import setpoint. When the mains import and the generator load decrease below the stop setpoint. The delay starts running when the GB has been closed.g.AGC-4 DRH 4189340686 UK Functional descriptions 3. ramp to 60%. the genset will run at min.6 Ramp up with load steps When the GB is closed. ramp to 40%. 3. 2. 3.7 Freeze power ramp A way to define the ramp up steps is to use the freeze power ramp command in M-logic. wait and then ramp to the present power setpoint. the ramp will be fixed until the function is deactivated again. 2620 Power ramp down Ramp speed: Defines the slope of the ramp down. wait. For a general description of the available running modes. the genset will cool down and stop. Freeze power ramp active: 1. Breaker open: The amount of power accepted when opening the breaker.4. The power ramp will stop at any point of the power ramp. load again. the timer will be stopped and will not continue until the function is deactivated again. please refer to the chapter "Running mode description". and this setpoint will be maintained as long as the function is active.4. the genset will supply the extra load in order to maintain the mains import at the maximum import level.4. If the delay point is set to 20% and the number of load steps is set to 3. please see "Mains transducer" description later in this document. wait the configured delay time. e. 10%. When the mains import increases above the maximum mains import setpoint. determined by the number of steps in menu 2615. If the function is activated while ramping from one delay point to another. If the function is activated while the delay timer is timing out. DEIF A/S Page 20 of 199 . 7050 Fixed power set Power set: The amount of power the genset will produce. the genset will ramp to 20%. the power setpoint continues to rise in ramp up steps. 3. A 4-20 mA transducer is used for indication of the power imported from the mains.8 Peak shaving Auto mode description The genset will start at a predefined mains import level and run at a fixed minimum load. So the maximum mains import will not be exceeded in spite of the semi. peak shaving – example Semi-auto mode description When the generator breaker is closed and the mains breaker is opened. the setpoint is the adjusted power factor (7050 Fixed power set).auto mode. If AVR control (option D1) is selected. The hours outside the daytime period are considered to be the night-time period. the generator will be controlled according to the peak shaving setpoint.Functional descriptions AGC-4 DRH 4189340686 UK kW Peak/total power Max. the nominal voltage is used as setpoint. 7010 Daytime period These settings define the daytime period. Setpoints related to peak shaving 7000 Mains power Day and night: The mains power import limits for the peak shaving. DEIF A/S Page 21 of 199 . When the generator is paralleled to the mains. Tmax and Tmin: The transducer range in kW which corresponds to the 4-20 mA transducer signal connected on multi-input 102. mains import level Mains power Gen-set start level Gen-set stop level Generator power Gen-set minimum load t tSTOP Diagram. the unit will use the nominal frequency as setpoint for the speed governor. If AVR control (option D1) is selected. 3. If power management is used. When the generator breaker is closed. cooled down and stopped. the imported load is decreased (the power is being transferred to the genset) until the load is at the open breaker point. Then the mains breaker opens. the genset will start and synchronise the generator breaker to the busbar that is being supplied by the mains. Delay: The genset will stop when the stop setpoint has been exceeded and this delay has expired. DEIF A/S Page 22 of 199 . the mains breaker is synchronised to the busbar and after closure the genset is deloaded. 7020 Start generator Start setpoint: The start setpoint is in percent of the day and night settings in menu 7000 Mains power. When the start command is given. 7030 Stop generator Stop setpoint: The stop setpoint is in percent of the day and night settings in menu 7000 Mains power.4. Delay: The genset will start when the start setpoint has been exceeded and this delay has expired. then load-dependent start and stop parameters will be used. "Description of options G4. Load: The minimum load the genset will produce when parallel to mains. please refer to the power management manual. A 4-20 mA transducer is used for indication of the power imported from the mains. For a general description of the available running modes.Back synchronising ON The purpose of the load takeover mode is to transfer the load imported from the mains to the genset for operation on generator supply only. For additional information on load-dependent start and stop. When the stop command is given.AGC-4 DRH 4189340686 UK Functional descriptions Parameters 7020 and 7030 are used to define the starting and stopping point of an application without power management (option G5). please see "Mains transducer" description later in this document.9 Load takeover Auto mode description . please refer to the chapter "Running mode description". G5 and G8". the nominal voltage is used as setpoint. the mains breaker is opened and the generator breaker is closed.example The load takeover mode can be combined with the overlap function. please refer to the chapter "Running mode description". In that case. The genset cools down and stops. it will be controlled so the imported power from the mains will be kept at 0 kW. load takeover . Now. the setpoint is the adjusted power factor (7050 Fixed power set). . Semi-auto mode When the generator breaker is closed and the mains breaker is opened. DEIF A/S Page 23 of 199 . If the imported load is higher than the nominal genset power. Then. If the imported load is higher than the nominal genset. an alarm appears and the load takeover sequence is paused. If AVR control (option D1) is selected. When the frequency and voltage is OK. When the generator is paralleled to the mains.AGC-4 DRH 4189340686 UK Functional descriptions kW Mains power Generator power GB opens Stop signal MB opens Start signal t Diagram. the generator supplies the load until the stop command is given. an alarm appears and the load takeover sequence is paused. the generator and the mains breakers will never be closed at the same time for a longer period than the adjusted "overlap" time. For a general description of the available running modes. the genset will start. the unit will use the nominal frequency as setpoint for the speed governor. the generator breaker opens and the mains breaker closes.Back synchronising OFF When the start command is given. If AVR control (option D1) is selected. If a fixed level of imported power must be used. The genset starts as a result of a digital start command. It synchronises to the mains and will start to export power to the mains. Semi-auto mode description When the generator breaker is closed and the mains breaker is opened. The power can be exported to the mains or imported from the mains. it will cool down and stop. mains power export . This means that the genset will be parallel to the mains but no power import or export. If AVR control (option D1) is selected. Afterwards. The amount of power exported will be kept at a fixed level regardless of the load on the busbar (the factory). Stop signal Start signal A 4-20 mA transducer is used for indication of the power exported from the mains.example Please notice that the setpoint of the mains power export can be adjusted to 0 kW. DEIF A/S Page 24 of 199 .4. the nominal voltage is used as setpoint.10 Mains power export (fixed power to mains) Auto mode description The mains power export mode can be used to maintain a constant level of power through the mains breaker. but always at a constant level. t Ramp up Ramp down Mains power export setpoint kW Diagram. it is still the mains power export mode that must be selected! This mode covers import as well as export.Functional descriptions AGC-4 DRH 4189340686 UK 3. the unit will use the nominal frequency as setpoint for the speed governor. The stop command will cause the genset to deload and trip the generator breaker. please see "Mains transducer" description later in this document. Parameter Name Range 7003 Transducer range max. Set up multi-input 102 for 4-20 mA in parameter 10980. Mains Display Transducer (TAS-331DG) Mains breaker (MB) Controller Consumers Generator breaker (GB) G Diesel generator set How to set up As mentioned. peak shaving.AGC-4 DRH 4189340686 UK Functional descriptions When the generator is paralleled to the mains.4. it is possible to use multi-input 102 for this purpose. please refer to the chapter "Running mode description". and define the range of the transducer in parameter 7003 and 7004. it will be controlled according to the mains power export setpoint. setting where the min. -20000 DEIF A/S Page 25 of 199 . it is necessary to use multi-input 102 for this purpose. it is necessary to know the power flow on the primary side of the mains breaker. 3. this is used to calculate the power and based upon this gives a 4-20 mA output. When one controller is used for the application or if a transducer signal is preferred in a power management system. setting to 20 mA. The range is defined with a min. 20000 7004 Transducer range min. and max. load takeover). Below is a single line diagram where a TAS-331 DG transducer is used for measuring the voltage and current before the mains breaker. setting corresponds to 4 mA and the max. For a general description of the available running modes. If AVR control (option D1) is selected.11 Mains transducer In applications where export/load takeover is used (mains power export. the setpoint is the adjusted power factor (7050 Fixed power set). Push-buttons on the display are used 2. please refer to "Digital inputs" in this document and the data sheet for additional information about availability. Modbus command The standard AGC is only equipped with a limited number of digital inputs. if external signals are given.5. An external signal may be given in three ways: 1. Digital inputs are used 3. the controller will use the transducer signal. When the genset is running in semi-auto mode.1 Semi-auto mode The unit can be operated in semi-auto mode.AGC-4 DRH 4189340686 UK Functional descriptions As soon as transducer max. It will only initiate sequences. the unit will control the speed governor and the AVR. 3. if option D1 is selected.5 Running mode description 3. settings are changed to a value different from 0. or min. even in a power management system with a mains controller. as is the case with the auto mode. The following sequences can be activated in semi-auto: DEIF A/S Page 26 of 199 . Semi-auto means that the unit will not initiate any sequences automatically. the unit will not regulate after breaker closure. Open GB The unit will ramp down and open the generator breaker at the breaker open point if the mains breaker is closed. Manual AVR DOWN The regulator is deactivated and the governor output is activated as long as the AVR input is ON. The settings for the test function are set up in menu 7040 Test ● Setpoint: Load setpoint when paralleling to mains. Manual GOV UP The regulator is deactivated and the governor output is activated as long as the GOV input is ON.2 Test mode The test mode function is activated by selecting test with the MODE push-button on the display or by activating a digital input. The unit will open the generator breaker instantly if the mains breaker is open or the genset mode is island mode. Open MB The unit opens the mains breaker instantly.AGC-4 DRH 4189340686 UK Command Functional descriptions Description Comment Start The start sequence is initiated and continues until the genset starts or the maximum number of start attempts has been reached. When AMF mode is selected. 3. After disappearance of the running signal. Option D1 is required. Close GB The unit will close the generator breaker if the mains breaker is open. The genset is stopped with cooling down time. Stop The genset will be stopped. Manual GOV DOWN The regulator is deactivated and the governor output is activated as long as the GOV input is ON. the unit will return to the selected mode (semi-auto or auto). DEIF A/S Page 27 of 199 .5. The frequency (and voltage) will be regulated to make the GB ready to close. Manual AVR UP The regulator is deactivated and the governor output is activated as long as the AVR input is ON. the stop sequence will continue to be active in the ‘"extended stop time" period. synchronise and close the mains breaker if the generator breaker is closed. Close MB The unit will close the mains breaker if the generator breaker is open. synchronise and close the generator breaker if the mains breaker is closed. The cooling down time is cancelled if the stop button is activated twice. Option D1 is required. ● Return: When the test is completed. ● Timer: Engine run time during the test period. To run the full test. If the timer is set to 0. synchronise the generator breaker and produce the power typed in the setpoint in menu 7041. To run the load test.. The following commands are possible: DEIF A/S Page 28 of 199 .5. the test sequence will be infinite.5. the genset can be controlled from the display and with digital inputs.0 min. 3.3 Simple test The simple test will only start the genset and run it at nominal frequency with the generator breaker open. it is required that "Sync to Mains" is enabled in menu 7084. the DG will continue to run. The test will run until the timer expires. the overlap function is ignored. 3.4 Load test The load test will start the genset and run it at nominal frequency. When running a load test sequence. The test will run until the timer expires. Test mode in island operation (genset mode selected to island mode) can only run "Simple" and "Full" test. it is required that "Sync to Mains" is enabled in menu 7084. 3. When the test timer expires. If the DG unit is in the stop sequence in test mode and the mode is changed to semi-auto.AGC-4 DRH 4189340686 UK Functional descriptions 7040 Test ● Type: Selection of one of the three types of tests: Simple. 3.5.5 Full test The full test will start the genset and run it at nominal frequency.6 Manual mode When manual mode is selected. synchronise the generator breaker and transfer the load to the generator before opening the mains breaker. Load or Full. the mains breaker will be synchronised and the load is transferred back to the mains before the generator breaker is opened and the generator is stopped.5. failure is deactivated. the AGC will stay in block mode after the block input is deactivated. No regulation. it returns to the mode it was in before block mode was selected. The block mode must now be changed using the display. Close GB The unit will close the generator breaker if the mains breaker is open. the stop sequence will continue to be active in the "extended stop time" period. Sync. To change the running mode from the display. Sync. it is important to check that persons are clear of the genset and that the genset is ready for operation. Manual AVR UP The unit gives increase signal to the AVR. The block mode can only be changed locally by display or digital input. when it is ON. Stop The genset will be stopped. It is possible to open and close both the generator breaker and the mains breaker in manual mode. the unit is locked for certain actions. This means that it cannot start the genset or perform any breaker operations. Open GB The unit will open the generator breaker instantly. It is not possible to select "block mode" when running feedback is present. DEIF A/S Page 29 of 199 . No regulation. Before the running mode is changed. After disappearance of the running signal. and when it is OFF. 3. the unit is in a blocked state. Option D1 is required. Option D1 is required.5.AGC-4 DRH 4189340686 UK Command Functional descriptions Description Comment Start The start sequence is initiated and continues until the genset starts or the maximum number of start attempts has been reached. Manual AVR DOWN The unit gives decrease signal to the AVR. failure is deactivated. and synchronise and close the mains breaker if the generator breaker is closed. The genset is stopped with cooling down time. If the digital inputs are used to change the mode. The purpose of the block mode is to make sure that the genset does not start for instance during maintenance work. and synchronise and close the generator breaker if the mains breaker is closed.7 Block mode When the block mode is selected. Open MB The unit will open the mains breaker instantly. Close MB The unit will close the mains breaker if the generator breaker is open. the user will be asked for a password before the change can be made. Manual GOV DOWN The unit gives decrease signal to the speed governor. If block mode is selected using the display after the digital block input is activated. So. then it is important to know that the input configured to block mode is a constant signal. Manual GOV UP The unit gives increase signal to the speed governor. No regulation. 6.AGC-4 DRH 4189340686 UK Functional descriptions Alarms are not influenced by block mode selection.6. The genset will shut down if block mode is selected while the genset is running. DEIF recommends avoiding local cranking and starting of the genset. The genset can be started from the local engine control panel. 3.1 Application illustration In the following. Therefore.2 Automatic Mains Failure Load Controller G DEIF A/S Page 30 of 199 .6 Single-line diagrams 3. if such is installed. 3. the various applications are illustrated in single-line diagrams. 4 Fixed power/base load Load Controller G DEIF A/S Page 31 of 199 .6.AGC-4 DRH 4189340686 UK Functional descriptions 3.3 Island operation Load Controller G 3.6. 6.5 Peak shaving TRANSDUCER P/4-20 mA Load Controller G 3.6 Load takeover TRANSDUCER P/4-20 mA Load Controller G DEIF A/S Page 32 of 199 .AGC-4 DRH 4189340686 UK Functional descriptions 3.6. 6.6.8 Multiple gensets.AGC-4 DRH 4189340686 UK Functional descriptions 3. load sharing (option G3 required) Load Controller G DEIF A/S Controller G Page 33 of 199 .7 Mains power export TRANSDUCER P/4-20 mA Load Controller G 3. power management (option G5 required) .Island mode application Display 1 Display 2 Busbar CANbus Controller Generator breaker (GB 1) G Diesel generator set 1 DEIF A/S Generator breaker (GB 2) Controller G Diesel generator set 2 Page 34 of 199 .9 Multiple gensets.AGC-4 DRH 4189340686 UK Functional descriptions 3.6. Parallel to mains application Display mains Mains Mains breaker (MB) Controller Consumers Tie breaker (TB) Display 1 Display 2 Busbar CANbus Generator breaker (GB 1) Controller G Diesel generator set 1 DEIF A/S Generator breaker (GB 2) Controller G Diesel generator set 2 Page 35 of 199 .AGC-4 DRH 4189340686 UK Functional descriptions . AGC-4 DRH 4189340686 UK Functional descriptions - Multi mains with two mains, two tie breakers, one bus tie breaker and four gensets Optional Optional AOP 1 AOP 2 Display AOP 1 Display Display Mains 17 AOP 2 Display Mains 18 CANbus CANbus Mains breaker (MB 17) Mains breaker (MB 18) Controller Controller CANbus Load Load Tie Breaker (TB 17) Tie Breaker (TB 18) Display 1 Display 2 Display BTB 33 Display 3 Display 4 BTB 33 Busbar Busbar CANbus Generator breaker (GB 1) Controller G Diesel generator set 1 CANbus Generator breaker (GB 2) Controller G Diesel generator set 2 Controller Generator breaker (GB 3) Controller G Diesel generator set 3 Generator breaker (GB 4) Controller G Diesel generator set 4 The diagram shows four generators, but the system supports up to 16 generators. Please refer to the option G5 manual for further description of multi mains. DEIF A/S Page 36 of 199 Functional descriptions AGC-4 DRH 4189340686 UK - ATS plant, mains unit Display Mains Mains okay Controller Consumers ATS ON/OFF Tie Breaker (TB) Display 1 Display 2 Display 3 Controller Controller Busbar CANbus Controller G G Diesel generator set 1 Diesel generator set 2 G Diesel generator set 3 - Remote maintenance Controller LOAD G Relay The diagram shows a setup using the remote maintenance box. Please refer to the operator’s manual of the remote maintenance box for further description. 3.7 Flowcharts Using flowcharts, the principles of the most important functions will be illustrated in the next sections. The functions included are: ● Mode shift DEIF A/S Page 37 of 199 AGC-4 DRH 4189340686 UK ● ● ● ● ● ● ● ● ● ● ● ● ● Functional descriptions MB open sequence GB open sequence Stop sequence Start sequence MB close sequence GB close sequence Fixed power Load takeover Island operation Peak shaving Mains power export Automatic Mains Failure Test sequence The flowcharts on the following pages are for guidance only. For illustrative purposes, the flowcharts are simplified in some extent. DEIF A/S Page 38 of 199 1 Mode shift Start Mode shift enabled No Yes Plant mode not Island and AMF No Yes No Mains failure Yes Initiate AMF sequence No Mains OK timer timed out Yes Initiate mains return sequence MB close sequence Continue in selected mode End DEIF A/S Page 39 of 199 .AGC-4 DRH 4189340686 UK Functional descriptions 3.7. 7.2 MB open sequence Start MB closed No Yes Load take over No Mains failure Yes Deload MB No Load = 0 No Load too high Yes Alarm Yes Open MB MB opened No Alarm ”MB open failure” Yes End DEIF A/S Page 40 of 199 .AGC-4 DRH 4189340686 UK Functional descriptions 3. 7.3 GB open sequence Start Stop conditions OK No Yes Is GB closed No Yes Soft open Failclas shutdown No Yes Deload DG No Load < open set point No Ramp down timer expired Yes Yes Open GB GB opened No Alarm Yes End DEIF A/S Page 41 of 199 .AGC-4 DRH 4189340686 UK Functional descriptions 3. 4 Stop sequence Start No Stop conditions OK Yes GB open seq OK No Yes AUTO mode No Yes No Cooldown timer run out Yes Run coil No Stop relay Yes Deactivate ”stop” relay Genset stopped Activate stop relay No Alarm Yes End DEIF A/S Page 42 of 199 .7.AGC-4 DRH 4189340686 UK Functional descriptions 3. 7.5 Start sequence Start Start condition OK No Yes Start prepare timer No Yes Start relay ON Start relay timer timeout No Genset started No Yes Yes Off relay ON Run feedback detected No Alarm Yes Stop relay timer timed out Yes No Max start attempts No F/U OK No Yes Ready to close GB Yes Start failure alarm DEIF A/S End Page 43 of 199 .AGC-4 DRH 4189340686 UK Functional descriptions 3. AGC-4 DRH 4189340686 UK Functional descriptions 3.6 MB close sequence Start Is MB open No Yes Voltage on mains/bus No Yes Voltage on gen No Yes GB closed No Yes Back sync ON Direct close OK Yes No Yes No Sync timer runout Sync MB Synchronised GB open sequence No Yes Alarm sync.7. failure Alarm GB open failure No Yes Close MB MB closed No Close failure alarm Yes End DEIF A/S Page 44 of 199 . 7.AGC-4 DRH 4189340686 UK Functional descriptions 3.7 GB close sequence Start Is GB open No Yes Start seq OK No Yes Single DG application No Island mode No All GBs OFF Yes Yes No Yes Yes Voltage on bus Voltage on busbar No Yes No MB close No Yes TB Present No Yes TB open Yes No Yes MB open No No Direct closing OK Sync GB Time runout DG freq match BB freq Yes No Alarm sync failure Yes Close GB GB closed No Alarm Yes End DEIF A/S Page 45 of 199 . 7.8 Fixed power Start Activate start input Start sequence GB close sequence Ramp-up to load set-point Operation Deactivate start input GB open sequence Stop sequence End DEIF A/S Page 46 of 199 .AGC-4 DRH 4189340686 UK Functional descriptions 3. AGC-4 DRH 4189340686 UK Functional descriptions 3.9 Load takeover Start Activate start input Start sequence GB close sequence Mains load = 0 kW No Ramp-up genset load Yes MB open sequence Genset operation Deactivate start input MB close sequence DEIF A/S GB open sequence Stop sequence End Page 47 of 199 .7. AGC-4 DRH 4189340686 UK Functional descriptions 3.7.10 Island operation Start Start input active Start sequence GB close sequence Operation Start input deactivated GB open sequence Stop sequence End DEIF A/S Page 48 of 199 . AGC-4 DRH 4189340686 UK Functional descriptions 3.11 Peak shaving Start Mains power above start set point Start sequence GB close sequence Operation: produce power above set point Mains power below stop set point GB open sequence Stop sequence End DEIF A/S Page 49 of 199 .7. 7.12 Mains power export Start Activate start input Start sequence Close GB sequence Ramp up to MPE set point operation Deactivate start input GB open sequence Stop sequence End DEIF A/S Page 50 of 199 .AGC-4 DRH 4189340686 UK Functional descriptions 3. 13 Automatic Mains Failure Start No Mains failure Yes #7065: start eng + open MB No Yes Open MB Start sequence Start sequence Open MB GB close sequence GB close sequence Mains ok No Yes Time out DEIF A/S MB close sequence End Page 51 of 199 .AGC-4 DRH 4189340686 UK Functional descriptions 3.7. 7.AGC-4 DRH 4189340686 UK Functional descriptions 3.14 Test sequence Start Select test mode Start sequence Test timer Timer run out No Engine running No Yes Yes Stop sequence Freq/voltage OK No Yes Sync of GB allowed Engine stopped No No Yes Return to running mode. menu 7043 Sync GB Opening og MB allowed No Ramp up to P setpoint Yes End DEIF A/S No P Mains = 0kW Yes Open MB Page 52 of 199 . In the semi-auto mode. Refer to our application notes or installation instructions for information about the required breaker wiring. If small relays are used. We recommend not using small relays for stop coil output. the mains breaker.8 Sequences The following contains information about the sequences of the engine. but no subsequent synchronising is initiated).AGC-4 DRH 4189340686 UK Functional descriptions 3. the digital input "MB closed" must NOT be activated with a 12/24 volt input signal. A "mains breaker failure" will occur if the wiring of the mains breaker feedback inputs is wrong. the generator breaker and.g. The following sequences will be illustrated below: ● ● ● START sequence STOP sequence Breaker sequences If island operation is selected. or if the commands are selected in the semi-auto mode. press the START pushbutton: The engine will start. DEIF A/S Page 53 of 199 . This is caused by the wirebreak function. a resistor must be mounted across the relay coil to prevent undesirable closing of the relay. the selected sequence is the only sequence initiated (e. These sequences are automatically initiated if the auto mode is selected. if installed. before the start relay (starter).8. No matter the choice of start prepare function. Start sequence: Normal start prepare Start prepare tOFF Crank (starter) tOFF Run coil 1 sec.AGC-4 DRH 4189340686 UK Functional descriptions 3. Stop coil Running feedback 1st start attempt DEIF A/S 2nd start attempt 3rd start attempt Page 54 of 199 . the running coil is activated 1 sec.1 Start sequence The following drawings illustrate the start sequences of the genset with normal start prepare and extended start prepare. For each of the VDO settings. DEIF A/S Page 55 of 199 .2 Start sequence conditions The start sequence initiation can be controlled by the following conditions: ● ● ● VDO 102 (oil pressure) VDO 105 (water temperature) VDO 108 (fuel level) This means that if e.. then the crank relay will not engage the starter motor. The diagram below shows an example where the VDO signal builds up slowly and starting is initiated at the end of the third start attempt.0. If the value in 6186 is set to 0. (menu 6150).8. The selection is made in setting 6185. 3.Functional descriptions AGC-4 DRH 4189340686 UK Start sequence: Extended start prepare Start prepare tOFF Crank (starter) tOFF Run coil 1 sec. the timer is set to 1 sec. the start sequence is initiated as soon as it is requested. Stop coil Running feedback 1st start attempt 2nd start attempt 3rd start attempt Run coil can be activated from 1. In the above example. fuel level or water temperature) must exceed the setpoint of setting 6186 before starting is initiated.. the rule is that the value (oil pressure. before crank (starter) will be executed.600 sec.g. the oil pressure is not primed to the sufficient value. This way. As soon as the genset is running. the genset will still be functional even though a tacho sensor is damaged or dirty. the running detection will be made based on all available types. Refer to menu 6170 for selection of the running feedback type. the primary choice is not detecting any running feedback. The running feedback selected is the primary feedback. If a running feedback is detected based on one of the secondary choices.8. the starter relay will stay activated for 1 additional second. DEIF A/S Page 56 of 199 . for some reason. no matter if the genset is started based on the primary or secondary feedback. The running detection is made with a built-in safety routine. the genset will start. If.3 Running feedback Different types of running feedback can be used to detect if the motor is running. At all times all the types of running feedback is used for running detection.Functional descriptions AGC-4 DRH 4189340686 UK Start sequence Cranking depends on RMI Start prepare (3 start attempts) 1 2 3 Stop relay Crank relay Run coil Running feedback RMI measurement OK RMI value Cranking starts 3. The frequency measurement requires a voltage measurement of 30% of UNOM. DEIF A/S Page 57 of 199 . Stop push-button on display Only in semi-auto or manual mode. The running detection based on the frequency measurement can replace the running feedback based on tacho or digital input or engine communication. Running mode It is not possible to change the running mode to "block" as long as the genset is running. Binary stop input Semi-auto or manual mode. fixed power. Running feedback Digital input. Running feedback Frequency measurement above 32 Hz. it has to be set up in menu 6174. Running feedback failure Primary running feedback Secondary running feedback 1sec Start relay (crank) tAlarm Alarm Interruption of start sequence The start sequence is interrupted in the following situations: Event Comment Stop signal Start failure Remove starter feedback Tacho setpoint. Emergency stop Alarm Alarms with shutdown" or "trip and stop" fail class. Modbus stop command Semi-auto or manual mode. Running feedback Oil pressure setpoint (menu 6175). Running feedback EIC (engine communication) (option H5 or H7). load takeover or mains power export mode. Running feedback Tacho setpoint. If the MPU input is to be used to remove the starter.AGC-4 DRH 4189340686 UK Functional descriptions The sequence is shown in the diagram below. Deactivate the "auto start/ stop" Auto mode in the following genset modes: Island operation. Start OFF time: The pause between two start attempts. if the genset has not started after the number of start attempts set in menu 6190. Both of these must have the fail class "shut down". has not detected running. this alarm will be raised. this alarm is raised when the delay has expired. prelubrication or preglowing. this alarm will be raised if the specified rpm is not reached before the delay has expired. . the extended prepare function is deactivated. Start ON time: The starter will be activated for this period when cranking. DEIF A/S Page 58 of 199 . the start prepare function is deactivated. The delay to be set is the time from the secondary running detection and until the alarm is raised. The start prepare relay is activated when the start sequence is initiated and deactivated when the start relay is activated.Start prepare (6180 Starter) Normal prepare: The start prepare timer can be used for start preparation purposes. digital input.g.AGC-4 DRH 4189340686 UK Functional descriptions The only protections that can stop the genset/interrupt the start sequence when the "shutdown override" input is activated. If the timer is set to 0. are the digital input "emergency stop" and the alarm "overspeed 2". .Hz/V failure (4550 Hz/V failure) If the frequency and voltage are not within the limits set in menu 2110 after the running feedback is received. Setpoints related to the start sequence .g. prepare time exceeds the start ON time. Extended prepare: The extended prepare will activate the start prepare relay when the start sequence is initiated and keep it activated when the start relay activates until the specified time has expired.Crank failure alarm (4530 Crank failure) If MPU is chosen as the primary running feedback. fail) If running is detected on the frequency (secondary).0 s. If the timer is set to 0. e.Run feedback failure (4540 Run feedb. the start prepare relay is deactivated when the start relay deactivates.0 s. . but the primary running feedback. If the ext. e. .Start failure alarm (4570 Start failure) The start failure alarm occurs. Functional descriptions AGC-4 DRH 4189340686 UK 3.4 Stop sequence The drawings illustrate the stop sequence. Stop sequence Run coil Cooling down time tCOOL tstop Run coil Running feedback Sequence initiated Stop sequence Stop coil Cooling down time tCOOL Stop coil tstop Running feedback Sequence initiated The stop sequence will be activated if a stop command is given.8. DEIF A/S Page 59 of 199 . The stop sequence includes the cooling down time if the stop is a normal or controlled stop. mains power export. fixed power.Stop failure (4580 Stop failure) A stop failure alarm will appear if the primary running feedback or the generator voltage and frequency are still present after the delay in this menu has expired. Remove "auto start/stop" X X Auto mode: Island operation. load takeover or mains power export.Functional descriptions AGC-4 DRH 4189340686 UK Description Cooling down Stop Comment Auto mode stop X X Trip and stop alarm X X Stop button on display (X) X Semi-auto or manual. Cool down controlled by engine temperature: The engine temperature-controlled cool down is to ensure that the engine is cooled down below the setpoint in menu 6214 "Cool down temperature" before the engine is stopped. GB close button is pressed Semi-auto mode only. . Setpoints related to the stop sequence . Extended stop: The delay after the running feedback has disappeared until a new start sequence is allowed. X Engine shuts down and GB opens. If the engine has been running for a long period. and the cool down period will be the exact time it takes to get the temperature below the temperature setpoint in menu 6214. as the cool down period will be very short or none at all. The stop sequence can only be interrupted during the cooling down period. This is particularly beneficial if the engine has been running for a short period of time and therefore not reached normal cooling water temperature. Start button is pressed Semi-auto mode: Engine will run in idle speed. Please refer to the mentioned option descriptions. the analogue speed governor output is reset to the offset value. Binary start input Auto mode: Island operation and fixed power. Exceeding setpoint Auto mode: Peak shaving. it will have reached normal running temperature. Emergency stop The stop sequence can only be interrupted during the cooling down period. load takeover. The extended stop sequence is activated any time the Stop button is pressed. DEIF A/S Page 60 of 199 . Interruptions can occur in these situations: Event Comment Mains failure AMF mode selected (or mode shift selected ON) and auto mode selected.Stop (6210 Stop) Cooling down: The length of the cooling down period. Cooling down is interrupted if the stop button is activated twice. When the engine is stopped. the engine will be shut down by this timer. for some reason. Back sync. The MB can close directly if the GB is open. AGC without back synchronisation: The GB can only be closed if the mains breaker is open. then the relays and inputs normally used for MB control become configurable. AGC with back synchronisation: If the GB or MB push-button is activated. If the cooling down temperature is set to 0 deg. the MB ON sequence will not be initiated before this delay has expired. MB close delay: The time from GB OFF to MB ON when back synchronisation is OFF. The reason for this could be high ambient temperature.0 s. If no MB is represented. the engine cannot get the temperature below the temperature setpoint in 6214 within the time limit in parameter 6211. The MB can only be closed if the generator breaker is open. Setpoints related to MB control 7080 MB control Mode shift: When enabled. the cooling down sequence will be entirely controlled by the timer. 3. The power plant constructor (USW) is used for configuration of the plant design if the application does not include an MB.: Enables synchronisation from mains to generator. the cooling down sequence will be infinite. The GB can close directly if the MB is open. Sync. Please refer to the description of "Breaker spring load time". the AGC will start synchronising if the generator or mains voltage is present.AGC-4 DRH 4189340686 UK Functional descriptions If. Load time: After opening of the breaker.8. The limits are adjusted in menu 2110 Sync. the AGC will perform the AMF sequence in case of a mains failure regardless of the actual genset mode..5 Breaker sequences The breaker sequences will be activated depending on the selected mode: Mode Genset mode Breaker control Auto All Controlled by the unit Semi-auto All Push-button Manual All Push-button Block All None Before closing the breakers it must be checked that the voltage and frequency are OK. DEIF A/S Page 61 of 199 . to mains: Enables synchronisation from generator to mains. blackout. If the cooling down timer is set to 0. and the engine starts at the same time. the mains breaker opens. The timers used by the AMF function are indicated in the table below: Timer Description Menu number tFD Mains failure delay 7071 f mains failure 7061 U mains failure tFU Frequency/voltage OK 6220 Hz/V OK tFOD Mains failure OK delay 7072 f mains failure 7062 U mains failure tGBC GB ON delay 6231 GB control tMBC MB ON delay 7082 MB control The timer tMBC is only active if back synchronisation is deactivated.8. Example 1: 7065 Mains fail control: Start engine and open MB Mains OK tMBC MB On GB On Gen start seq tFD tFOD Gen stop seq Gen running Gen f/U OK Mains failure detected DEIF A/S tFU Mains OK Page 62 of 199 . 3. Back synchronisation is deactivated.6 AMF timers The time charts describe the functionality at a mains failure and at mains return. Start engine When a mains failure occurs. The possibilities in menu 7065 are: Selection Description Start engine + open mains breaker When a mains failure occurs. When the generator is running and the frequency and voltage are OK.AGC-4 DRH 4189340686 UK Functional descriptions AMF MB opening (menu 7065) It is possible to select the functionality of the mains breaker opening function. the MB opens and the GB closes. This is necessary if the unit operates in Automatic Mains Failure (AMF). the engine starts. AGC-4 DRH 4189340686 UK Functional descriptions Example 2: 7065 Mains fail control: Start engine Mains OK MB On tMBC GB On tGBC Gen start seq tFD Gen stop seq tFOD Gen running Gen f/U OK Mains failure detected DEIF A/S tFU Mains OK Page 63 of 199 . direct opening MB open MB OFF.AGC-4 DRH 4189340686 UK Functional descriptions Conditions for breaker operations The breaker sequences react depending on the breaker positions and the frequency/voltage measurements. deloading Alarms with fail class: Trip and stop DEIF A/S Page 64 of 199 . The conditions for the ON and OFF sequences are described in the table below: Conditions for breaker operations Sequence Condition GB ON. direct opening Alarms with fail classes: Shut down or Trip MB alarms GB OFF. direct closing Mains frequency/voltage OK GB open GB ON. deloading MB closed MB OFF. synchronising Mains frequency/voltage OK GB closed No generator failure alarms GB OFF. synchronising Running feedback Generator frequency/voltage OK MB closed No generator failure alarms MB ON. direct closing Running feedback Generator frequency/voltage OK MB open MB ON. 3. Changes the menu line (line four) in the display to mode selection. 2.Display unit and menu structure AGC-4 DRH 4189340686 UK 4. Moves the cursor right for manoeuvring in the menus. this button function is used for scrolling the second line displaying of generator values.528” x 9. 4. 4. In the daily use display. Shifts the first line displaying in the setup menus. to switch to master display in case more than one display is connected. Push 2 sec. In addition. 4. this button function is used for scrolling the View lines in V1 or the second line (in the setup menu) displaying of generator values. the unit menu structure will be presented. 5. each with 20 characters. Inreases the value of the selected setpoint (in the setup menu). Jumps one step backwards in the menu (to previous display or to the entry window). Display dimensions are H x W = 115 x 220 mm (4. Moves the cursor left for manoeuvring in the menus.90I PF SETUP Run 13 START 12 STOP SEMI-AUTO AMF V1 400V 150kW V2 On V3 Alarm Inh. 7.055”). Display unit and menu structure 4. In the daily use display. Decreases the value of the selected setpoint (in the setup menu). 6. 8. and holds a number of push-button functions.2.1 Presentation This chapter deals with the display unit including the push-button and LED functions.0 Hz G 0.1 Push-button functions The display unit holds a number of push-button functions which are described below: 1 2 3 4 Automatic Gen-set Controller Alarm Power Self check ok multi-line AGC Alarm 15 14 INFO JUMP G-L1 50.2 Display unit (DU-2) The display has four different lines. DEIF A/S Page 65 of 199 . Selects the underscored entry in the fourth line of the display. VIEW 5 SEL LOG 6 Auto On Load BACK G MODE 11 10 9 8 7 1. Stop of the genset if "SEMI-AUTO" or "MANUAL" is selected. Displays the LOG SETUP window where you can choose between the Event. 14.90I PF SETUP Run V1 400V 150kW V2 On Alarm Inh. but some are still present. LED indicates that the generator is running.2. 4. Shifts the display three lower lines to show the alarm list. 9. Manual activation of close breaker and open breaker sequence if "SEMI-AUTO" is selected.Display unit and menu structure AGC-4 DRH 4189340686 UK 9. LED is flashing yellow if the "MB spring loaded" signal from the breaker is missing or the MB load time has not expired. LED indicates that auto mode is selected. DEIF A/S Page 66 of 199 . The logs are not deleted when the auxiliary supply is switched off. Alarm and Battery logs. but the breaker is not yet closed due to interlocking of the GB. LED is flashing green when the mains returns during the "mains OK delay" time. LED is flashing yellow if the "Enable GB black close" or the "GB spring loaded" signal is missing or the GB load time has not expired. The colour is green or red or a combination in different situations. 3 VIEW SEL LOG V3 Auto On START 4 Load BACK STOP G 9 1. Start of the genset if "SEMI-AUTO" or "MANUAL" is selected. LED green light indicates that the generator breaker is closed. LED indicates that the unit is OK. 3. Enters a specific menu number selection.2 LED functions The display unit holds 10 LED functions.0 Hz G 0. 10. 10. The display LEDs are indicating as follows: Automatic Gen-set Controller Alarm Power 10 1 2 Self check ok multi-line AGC Alarm INFO JUMP SEMI-AUTO AMF G-L1 50. 8. LED flashing indicates that unacknowledged alarms are present. 13. 15. 12. All settings have a specific number attached to them. 4. 11. 5. Please refer to "Alarm inhibit" in the chapter "Additional functions". LED indicates that the mains breaker is closed. LED fixed light indicates that ALL alarms are acknowledged. LED is green if the mains is present and OK. 7. 2. Manual activation of close breaker and open breaker sequence if "SEMI-AUTO" is selected. LED is red at a measured mains failure. The JUMP button enables the user to select and display any setting without having to navigate through the menus (see later). 6. LED yellow light indicates that the generator breaker has received a command to close on a black bus. LED green light indicates that the voltage/frequency is present and OK. MODE 8 7 6 5 LED indicates that the auxiliary supply is switched on. 15 windows are configurable and can be entered by using the arrow push-buttons. It can always be reached by pressing the BACK pushbutton three times. The event and alarm list will appear at power up if an alarm is present.3 Menu structure The display includes two menu systems which can be used without password entry: View menu system This is the commonly used menu system. 4.3. and if the user needs detailed information that is not available in the view menu system.AGC-4 DRH 4189340686 UK Display unit and menu structure 4.1 Entry window When the unit is powered up. an entry window appears. The entry window is the turning point in the menu structure and as such the gateway to the other menus. Setup menu system This menu system is used for setting up the unit. is related to the power management option G4 and G5. DEIF A/S Page 67 of 199 . Changing of parameter settings is password protected. The priority "P00". shown in the lower right corner. 3. DEIF A/S Page 68 of 199 . and push-buttons. The menu navigating starts from the fourth display line in the entry window and is carried out using the .2 View menu The view menus (V1. ● ● ● ● Setup menu – access to the following sub-menus: ● Protection setup ● Control setup ● I/O setup ● System setup View 3 – window displays operational status and selectable measurements View 2 – window displays selectable measurements. 400 400 G-L1 50 Hz G-L1 50 Hz 2 V3 400V 440V 440V V2 V1 First display line: Operational status or measurements Second display line: Measurements relating to operational status Third display line: Measurements relating to operational status Fourth display line: Selection of setup and view menus In the view menus various measured values are on display. The same as view 1 View 1 – access to up to 15 selectable windows displaying selectable measurements The factory settings for view 1 and view 2 are identical. The entry window above displays view 1. 3. . V2 and V3) are the most commonly used menus of the unit. Moving the cursor left or right offers the following possibilities.AGC-4 DRH 4189340686 UK Display unit and menu structure 4. Automatic Gen-set Controller multi-line AGC G 1 3 SETUP 4 1. 4. 2. 00HZ 2 3 4 PROTECTION SETUP PROT CTRL I/O SYST 1. if changes are made.AGC-4 DRH 4189340686 UK Display unit and menu structure 4. values for the setting 4. The menu is entered from the entry window by selecting the entry SETUP in the fourth display line.3.Fourth display line (Daily use) Entry selection for the setup menu. Automatic Gen-set Controller multi-line AGC 1 G 400 400 400V f-L1 50. Press SEL to enter the underscored menu (Setup menu) Sub-functions for the individual parameters. So.3 Setup menu The setup menu system is used for parameter setup of the unit.Third display line (Daily use) (Setup menu) Explanation for the fourth line cursor selection Presents setting of the selected function.First display line (Daily use) The first line is used to display generator and bus values 2.g. and if the user needs detailed information that is not available in the view menu system. and min. and. this menu can be used for both daily use and setup purposes. the possible max. limit DEIF A/S Page 69 of 199 .Second display line (Daily use) Various values can be displayed (Menu system) Information about the selected channel number (Alarm/event list) The latest alarm/event is displayed 3. e. 0deg BB AngL1L2-180. voltage L1-N (V) Gen.) DEIF A/S Page 70 of 199 .) Voltage angle between L2-L3 (deg. total (kWh) Energy counter. reactive power (kVAr) Mains reactive power (kVAr) Gen.) M U-Min (voltage min. active power (kW) Gen.AGC-4 DRH 4189340686 UK Display unit and menu structure Possible values in second display line View line/second display line configuration For generator For bus/mains G f-L1 frequency L1 (Hz) M f-L1 frequency L1 (Hz) G f-L2 frequency L2 (Hz) M f-L2 frequency L2 (Hz) G f-L3 frequency L3 (Hz) M f-L3 frequency L3 (Hz) Gen. apparent power (kVA) Mains apparent power (kVA) Power factor Power factor Voltage angle between L1-L2 (deg.0deg BB-G Ang -180.) Voltage angle between L3-L1 (deg. weekly (kWh) Energy counter.) G U-Min (voltage min. monthly (kWh) Energy counter. total (kWh) Energy counter.) Voltage angle between L3-L1 (deg.) BB U-L1N BB U-L1N BB U-L2N BB U-L2N BB U-L3N BB U-L3N BB U-L1L2 BB U-L1L2 BB U-L2L3 BB U-L2L3 BB U-L3L1 BB U-L3L1 BB U-MAX BB U-MAX BB U-Min BB U-Min BB f-L1 BB f-L1 BB AngL1L2-180.0deg BB-M Ang -180.) Voltage angle between L2-L3 (deg.0deg U-Supply (power supply V DC) U-Supply (power supply V DC) Energy counter. daily (kWh) Energy counter. weekly (kWh) Energy counter. monthly (kWh) G U-L1N (voltage L1-N) M U-L1N (voltage L1-N) G U-L2N (voltage L2-N) M U-L2N (voltage L2-N) G U-L3N (voltage L3-N) M U-L3N (voltage L3-N) G U-L1L2 (voltage L1-L2) M U-L1L2 (voltage L1-L2) G U-L2L3 (voltage L2-L3) M U-L2L3 (voltage L2-L3) G U-L3L1 (voltage L3-L1) M U-L3L1 (voltage L3-L1) G U-Max (voltage max. daily (kWh) Energy counter. active power (kW) Mains active power (kW) Gen.) Voltage angle between L1-L2 (deg.) M U-Max (voltage max. AGC-4 DRH 4189340686 UK Display unit and menu structure View line/second display line configuration G I-L1 (current L1) M I-L1 (current L1) G I-L2 (current L2) M I-L2 (current L2) G I-L3 (current L3) M I-L3 (current L3) Run abs. (relative run time) Next prio (next priority shift) Run ShtD O (shutdown override run time) Mains power A102 P TB A105 Number of GB operations Number of TB operations Start attempts P available P available P mains P mains P DGs tot P DGs tot Number of MB operations Number of MB operations Service timer 1 Service timer 2 MPU Multi-input 1 Multi-input 1 Multi-input 2 Multi-input 2 Multi-input 3 Multi-input 3 Battery asym 1 Battery asym 1 Battery asym 2 Battery asym 2 Power factor Power factor Cos Phi Cos Phi Cos Phi reference (current) Cos Phi reference (current) Power reference (actual) Power reference (current) Power reference (current) Active PID regulator DEIF A/S Page 71 of 199 . (absolute run time) Run rel. 0% SP DEL OA OB ENA FC SP DEL OA OB ENA FC BACK First entry YES G 400 400 400V Enter passw.0% SAVE Increases setting Decreases setting Moves the cursor Page 72 of 199 . G 400 400 400V G f-L1 50.00HZ G 400 400 400V f-L1 50.AGC-4 DRH 4189340686 UK Display unit and menu structure Setup structure AGC V.00HZ SYSTEM SETUP PROT CTRL I/O SYST SEL BACK G 400 400 400V G 400 400 400V G 400 400 400V CONTROL SETUP SYNCHRONISE SETUP INPUT/OUTPUT SETUP BINARY INPUT SETUP SYSTEM SETUP GENERAL SETUP SYNC REG BIN AIN OUT GEN MAINS COMM PM -5.54 SETUP V3 V2 V1 SEL BACK G 400 400 400V f-L1 50.00HZ PROTECTION SETUP PROT CTRL I/O SYST BACK G 400 400 400V 1000 G -P> 1 Setpoint -5.00HZ CONTROL SETUP INPUT/OUTPUT SETUP PROTECTION SETUP PROT CTRL I/O SYST PROT SEL BACK I/O SYST PROT SEL BACK G 400 400 400V 1000 G -P> 1 Setpoint CTRL CTRL BACK I/O SYST SEL G 400 400 400V f-L1 50.00HZ G 400 400 400V f-L1 50. In this case Reverse power is the selected parameter.0 RESET DEIF A/S -5.0 2010-01-02 09. 2010 Increase no.4. ENTER NO G 400 400 400V 1001 G -P> 1 -50.00.35.0% G 400 400 400V 1010 G -P> 2 Setpoint -5.0% SP DEL OA OB ENA FC Setup example The following example illustrates how a specific setting is changed in the setup menu.0 0. Decrease no. Block mode must be selected when maintenance work is carried out on the genset. When starting in manual mode. Test The test sequence will start when the test mode is selected. 4. Pushing the MODE push-button will change the displayed text. The genset will shut down if block mode is selected while the genset is running. and the operator cannot initiate any sequences manually. Semi-auto In semi-auto mode the operator has to initiate all sequences. e. Block When the block mode is selected. the genset will start without any subsequent regulation.5 Mode selection The following drawings illustrate how the mode selection is carried out.AGC-4 DRH 4189340686 UK Display unit and menu structure 4. the unit is not able to initiate any sequences. For detailed information see chapter "Application". the underscored (fourth line) selection will be displayed. After pushing "MODE". the start sequence. This can be done via the push-button functions. the genset will run at nominal values. Modbus commands or digital inputs.4 Mode overview The unit has four different running modes and one block mode. In the third display line. the binary increase/decrease inputs can be used (if they have been configured) as well as the start and stop push-buttons. Two possibilities are now available: If "BACK" is pushed. When started in semi-automatic mode. the display returns to the original text without changing the mode. DEIF A/S Page 73 of 199 . the fourth display line indicates the selectable modes. Auto In auto mode the unit will operate automatically.g. Manual When manual mode is selected. 00HZ PROTECTION SETUP F-L1 0. In this example the SEMI-AUTO mode is selected.00. and the display returns to the original text. the underlined mode is selected. push AGC V 4. push G MODE 0 0 0V F-L1 0.AGC-4 DRH 4189340686 UK Display unit and menu structure 1.00.00. push G DEIF A/S 0 0 0V MODE 4.00.00HZ SEMI-AUTO MODE PROT CTRL I/O SYST SEMI TST AUT MAN SEL BLK Page 74 of 199 . push AGC MODE 13:45:18 V2 V 4. 3.0 2010-01-02 SETUP MENU SETUP V3 4. push AGC MODE 13:45:18 V2 V 4. push G 0 0 0V F-L1 0.00HZ PROTECTION SETUP F-L1 0.0 2010-01-02 13:45:18 SEMI-AUTO MODE V1 SEMI TST AUT MAN BACK BLK or 1.00HZ SEMI-AUTO MODE PROT CTRL I/O SYST SEMI TST AUT MAN BACK BLK If "SEL" is pushed. push G 0 0 0V 2.0 2010-01-02 13:45:18 SEMI-AUTO MODE V1 SEMI TST AUT MAN SEL BLK or 3.0 2010-01-02 SETUP MENU SETUP V3 2. push AGC V 4. AGC-4 DRH 4189340686 UK Display unit and menu structure 4.6 Password 4.6.1 Password The unit includes three password levels. All levels can be adjusted in the PC software. Available password levels: Password level Factory setting Access Customer Service Customer 2000 X Service 2001 X X Master 2002 X X Master X A parameter cannot be entered with a password that is ranking too low. But the settings can be displayed without password entry. Each parameter can be protected by a specific password level. To do so, the PC utility software must be used. Enter the parameter to be configured and select the correct password level. DEIF A/S Page 75 of 199 AGC-4 DRH 4189340686 UK Display unit and menu structure The password level can also be changed from the parameter view in the column "Level". 4.6.2 Parameter access To gain access to adjust the parameters, the password level must be entered: If the password level is not entered, it is not possible to enter the parameters. The customer password can be changed in jump menu 9116. The service password can be changed in jump menu 9117. The master password can be changed in jump menu 9118. The factory passwords must be changed if the operator of the genset is not allowed to change the parameters. It is not possible to change the password at a higher level than the password entered. DEIF A/S Page 76 of 199 Additional functions AGC-4 DRH 4189340686 UK 5. Additional functions 5.1 Start functions The unit will start the genset when the start command is given. The start sequence is deactivated when the remove starter event occurs or when the running feedback is present. The reason for having two possibilities to deactivate the start relay is to be able to delay the alarms with run status. If it is not possible to activate the run status alarms at low revolutions, the remove starter function must be used. An example of a critical alarm is the oil pressure alarm. Normally, it is configured according to the shutdown fail class. But if the starter motor has to disengage at 400 RPM, and the oil pressure does not reach a level above the shutdown setpoint before 600 RPM, then, obviously, the genset would shut down if the specific alarm was activated at the preset 400 RPM. In that case, the running feedback must be activated at a higher number of revolutions than 600 RPM. RPM RPM 1000 600 Running Oil pressure Remove starter 400 t 5.1.1 Digital feedbacks If an external running relay is installed, then the digital control inputs for running detection or remove starter can be used. Running feedback When the digital running feedback is active, the start relay is deactivated and the starter motor will be disengaged. DEIF A/S Page 77 of 199 RPM RPMNOM RPM Run. the digital running feedback is activated. the start relay is deactivated and the starter motor will be disengaged.Additional functions AGC-4 DRH 4189340686 UK RPM RPMNOM RPM Run. 5. Remove starter When the digital remove starter input is present. feedback t Firing speed The diagram illustrates how the digital running feedback (terminal 117) is activated when the engine has reached its firing speed. At the running speed. DEIF A/S Page 78 of 199 .1. The remove starter input must be configured from a number of available digital inputs. feedback Remove starter t Firing speed Running The diagram illustrates how the remove starter input is activated when the engine has reached its firing speed. The running feedback is detected by either the digital input (see diagram above).2 Analogue tacho feedback When a magnetic pick-up (MPU) is being used. RPM measured by magnetic pick-up or EIC (option H5/H7). the specific level of revolutions for deactivation of the start relay can be adjusted. frequency measurement above 32 Hz. menu 4301 t Firing speed Notice that the factory setting of 1000 RPM is higher than the RPM level of starter motors of typical design.). The factory setting is 1000 RPM (6170 Running detect.1. RPM RPMNOM RPM Run. Adjust this value to a lower value to avoid damage of the starter motor. feedback. When the oil pressure increases above the adjusted value (6175 Pressure level) then the running feedback is detected and the start sequence is ended.). RPM RPMNOM RPM Run. 5. menu 4301 Remove starter. feedback. The terminal in question must be configured as a VDO input for oil pressure measurement.Additional functions AGC-4 DRH 4189340686 UK Running feedback The diagram below shows how the running feedback is detected at the firing speed level. DEIF A/S Page 79 of 199 .3 Oil pressure The multi-inputs on terminals 102. The factory setting is 400 RPM (6170 Running detect. Remove starter input The drawing below shows how the setpoint of the remove starter is detected at the firing speed level. menu 6161 t Firing speed Running The number of teeth on the flywheel must be adjusted in menu 6170 when the MPU input is used. 105 and 108 can be used for the detection of running feedback. ). The relay will be closed for closing of the contactor and will be opened for opening of the contactor.Additional functions AGC-4 DRH 4189340686 UK Running feedback RPM / Oil pressure RPMNOM RPM Run detection Oil pressure menu 6175 t Firing speed Remove starter input The drawing below shows how the setpoint of the "remove starter input" is detected at the firing speed level. When using this type of signal. Continuous NE and Continuous ND This type of signal is most often used combined with a contactor.2 Breaker types There are five possible selections for the setting of breaker type for both mains breaker and generator breaker. The factory setting is 400 RPM (6170 Running detect. Continuous NE is a normally energised signal. RPM / Oil pressure RPMNOM RPM Run detection Oil pressure menu 6175 Remove starter. The open relay can be used for other purposes. DEIF A/S Page 80 of 199 . and Continuous ND is a normally deenergised signal. the AGC will only use the close breaker relays. menu 6161 t Firing speed Running The remove starter function can use the MPU or a digital input. 5. the length of breaker open signal can be adjusted. Compact This type of signal will most often be used combined with a compact breaker. External/ATS no control This type of signal is used to indicate the position of the breaker. Breaker LED indication To alert the user that the breaker close sequence has been initiated but is waiting for permission to give the close command. The close breaker relay will close for a short time for the compact breaker to close. but the breaker is not controlled by the AGC.AGC-4 DRH 4189340686 UK Additional functions Pulse This type of signal is most often used combined with circuit breaker. The following describes a situation where you risk getting a close failure: 1. the spring load time can be adjusted for GB/TB and MB. This can be done in menu 2160/2200. The open breaker relay will close for a short time for opening of the breaker. When the timers are counting. Different breaker types are used. 3. The auto start/stop input is deactivated. If the auto start/stop input is activated again before the stop sequence is finished. If compact breaker is selected.3 Breaker spring load time To avoid breaker close failures in situations where breaker ON command is given before the breaker spring has been loaded. With the setting compact the AGC will use the close command and the open command relay. the auto start/stop input is active. the spring load feedback from the tie breaker can be connected instead of the GB spring load feedback. If the compact breaker is tripped externally. Timer-controlled A load time setpoint for the GB/TB and MB control for breakers with no feedback indicating that the spring is loaded. 2. DEIF A/S Page 81 of 199 . a direct controlled motor driven breaker. The genset is in auto mode. 2. 7080 and 8190. the remaining time is shown in the display. it is recharged automatically before next closing. On the AGC mains unit (option G5). The breaker off relay will close for the compact breaker to open and hold it closed long enough for the motor in the breaker to recharge the breaker. With the setting pulse the AGC will use the close command and the open command relay. both requirements are to be met before closing of the breaker is allowed. 5. the stop sequence is executed and the GB is opened. the LED indication for the breaker will be flashing yellow in this case. After the breaker has been opened it will not be allowed to close again before the configured inputs are active. and therefore there are two available solutions: 1. The inputs are configured in the ML-2 utility software. the genset is running and the GB is closed. The close breaker relay will close for a short time for closing of the circuit breaker. If the two solutions are used together. After the breaker has been opened it will not be allowed to close again before the delay has expired. The setpoints are found in menus 6230. Digital input Two configurable inputs to be used for feedbacks from the breakers: One for GB/TB spring loaded and one for MB spring loaded. the GB will give a GB close failure as the GB needs time to load the spring before it is ready to close. 1 Principle The diagram shows an example where a single AGC in island mode is controlled by the AUTO start/stop input. the GB opens. GB closed GB open Auto Start/stop ON Auto Start/stop OFF t [sec] Spring load time DEIF A/S Page 82 of 199 . because the spring load time must expire (or the digital input must be activated .3. The AUTO start/stop is reactivated immediately after the GB has opened.not shown in this example). 5. Then the AGC issues the close signal. then the AGC can take this delay into account. e. This is what happens: When the AUTO start/stop input deactivates. depending on the breaker type. However. This can be controlled through timers in the AGC or through digital feedbacks from the breaker.g. by the operator through a switch in the switchboard.AGC-4 DRH 4189340686 UK Additional functions If the breaker needs time to reload the spring after it has opened. the AGC waits a while before it issues the close signal again. there is a dropdown window where it is possible to select which signals that have to be present in order to inhibit the alarm. a configurable inhibit setting for each alarm has been made. For each alarm.4 Alarm inhibit In order to select when the alarms are to be active. The inhibit functionality is only available via the PC utility software.AGC-4 DRH 4189340686 UK Additional functions 5. DEIF A/S Page 83 of 199 . but not both The timer in 6160 is not used if binary running feedback is used. inhibit is set to Not run status and GB ON. DEIF A/S Page 84 of 199 . In this example. Inhibit of the alarm is active as long as one of the selected inhibit functions is active. The inhibit LED on the unit and on the display will activate when one of the inhibit functions is active. the alarm will be disabled again.AGC-4 DRH 4189340686 UK Additional functions Selections for alarm inhibit: Function Inhibit 1 Description M-logic outputs: Conditions are programmed in M-logic Inhibit 2 Inhibit 3 GB ON (TB ON) The generator breaker is closed GB OFF (TB ON) The generator breaker is open Run status Running detected and the timer in menu 6160 expired Not run status Running not detected or the timer in menu 6160 not expired Generator voltage > 30% Generator voltage is above 30% of nominal Generator voltage < 30% Generator voltage is below 30% of nominal MB ON The mains breaker is closed MB OFF The mains breaker is open Parallel Both GB and MB are closed Not parallel Either GB or MB is closed. the alarm will be active when the generator has started. Here. When the generator has been synchronised to the busbar. It is possible to read alarms. The tie breaker unit has no running detection that can be configured. As soon as access lock is activated. 5. Only alarm inputs can be inhibited. so the only inhibit functions are the binary input and the TB position. a run status delay will expire. the operator will still be able to change up to 8 different predefined things. The input to be used for the access lock function is defined in the ML-2 PC utility software (USW). alarms with Run status will be activated. The operator does not have the possibilitiy to change anything. AOP can be locked by using M-Logic. The diagram below illustrates that after activation of the running feedback. or a generator placed in a critical power segment.Additional functions AGC-4 DRH 4189340686 UK Function inputs such as running feedback. Access lock will typically be activated from a key switch installed behind the door of the switchboard cabinet. If there is an AOP-2.4.5 Access lock The purpose of access lock is to deny the operator the possibility to configure the unit parameters and change the running modes. timers and the state of inputs in the service menu (9120). Access lock will only lock the display and will not lock any AOP or digital input.1 Run status (6160) Alarms can be adjusted to activate only when the running feedback is active and a specific time delay has expired. remote start or access lock are never inhibited. DEIF A/S Page 85 of 199 . tRUN Run. changes from the display cannot be made. but not any alarms when access lock is activated. This function is ideal for a rental generator. Nothing can be changed from the display. 5. feedback t Alarms active The timer is ignored if digital running feedback is used. It will still be possible to read all parameters. When the delay expires. If the function is used in a Power Management (option G5) application. then the overlap will occur between the mains breaker and the tie breaker on the AGC mains. The overlap function is only available in the automatic mains failure and load takeover genset modes.6 Overlap The purpose of the overlap function is to be able to define a maximum paralleling time between the generator and the mains supply. For safety reasons it is recommended to install an emergency stop switch. The time delay is measured in seconds and can be adjusted from 0.10 seconds are used. Later the mains breaker is synchronised. the mains breaker will be opened automatically after a time delay (t). AOP buttons are not locked when access lock is activated. and the generator breaker is opened after the time delay (t).Additional functions AGC-4 DRH 4189340686 UK The stop push-button is not active in semi-auto mode when the access lock is activated. The time delay typed in the setpoint is a maximum time. The short time parallel function is set up in 2760 Overlap. MB t t GB t The diagram shows that when the generator breaker is synchronised. This means that if 0.90 seconds. 5. the two breakers will never be closed at the same time for a longer delay than the setpoint. The function is typically used if there are local requirements to maximum allowed paralleling time.10 to 99. The same time delay is used for both generator and mains breaker synchronisation. DEIF A/S Page 86 of 199 . WE. SU) MO. Besides these settings it is possible to configure a digital input that can be used to control the mains return sequence. load takeover. Each command timer can be set for the following time periods: ● ● ● ● ● Individual days (MO. The load will continue on generator supply if the input is not activated. WE. start and stop. TU. SU SA. The mains OK delay is not used at all when the "Mains OK" input is configured. Up to four command timers can be used for e. be a PLC.8 Command timers The purpose of the command timers is to be able to e. The command timers are available in M-logic and can be used for other purposes than starting and stopping the genset automatically. TH. WE. FR. it needs to be activated (by a pulse) in order to initiate the mains return sequence. The purpose of this function is to let an external device or an operator control the mains return sequence. The flowchart below shows that if the input is configured. TH.g. SU DEIF A/S Page 87 of 199 . FR MO. WE. TH.g. If auto mode is activated. TU. start and stop the genset automatically at specific times each weekday or certain weekdays. TU. The external device can e. SA. mains power export and fixed power operation. Mains OK No MB input configured Yes Mains OK delay Expired MB control input No No ON Yes Yes MB and GB operation Sequence 5. This input is the "mains OK" input. SA. this function is available in island operation.7 Digital mains breaker control The unit will normally execute the automatic mains failure sequence based on the settings adjusted in the system setup. TU. FR.Additional functions AGC-4 DRH 4189340686 UK 5. TH MO.g. Then the relay will activate.9 Running output 6160 Run status can be adjusted to give a digital output when the genset is running. 5. Select the correct relay number in output A and output B and enable the function. the "Auto start/stop" command can be programmed in M-logic or in the input settings. but no alarm will appear. Change the relay function to limit in the I/O menu.AGC-4 DRH 4189340686 UK Additional functions To start in AUTO mode. DEIF A/S Page 88 of 199 . The time-dependent commands are flags that are raised when the command timer is in the active period. 10 Frequency-dependent droop This droop function can be used when the genset is parallel to the mains. In case the frequency drops or rises due to instability of the mains.5 Hz which is equal to a 3% deviation from the nominal setting. Example: With a nominal frequency of 50 Hz and an actual frequency of 51. there is a deviation of 1. DEIF A/S Page 89 of 199 . an alarm will appear at every running situation. The genset will then droop to 400 kW according to the below vector diagram.AGC-4 DRH 4189340686 UK Additional functions If the relay function is not changed to "limit" function. the curve for frequency-dependent droop is made to compensate the power setpoint. 5.5 Hz. If HYSH is set above DBH. the hysteresis low is disabled. The curve can be designed inside MIN/MAX [kW] area. the hysteresis high is disabled. 7132 900 MAX[kW] Maximum output of droop handling. The setting determines the increase/decrease of power reference per percentage the actual frequency rises above nominal frequency. 7122 2 DBH[%] Dead band high in percentages of nominal frequency. 7133 50 SLPL[kW/%] Slope low. The frequency-dependent droop is only available in fixed power mode. The setting determines the increase/decrease of power reference per percentage the actual frequency drops below nominal frequency. 7131 150 MIN[kW] Minimum output of droop handling. 7143 ON Enable Enable droop curve function. 7123 1 HYSL[%] Hysterese low in percentages of nominal frequency. Menu Settings Name Description 7051 450 kW Fixed power setpoint 7121 2 DBL[%] Dead band low in percentages of nominal frequency. If HYSL is set above DBL.AGC-4 DRH 4189340686 UK Additional functions P [KW] MAX DBH HYSH SLPL Fixed Power Setpoint SLPH HYSL DBL MIN (Fnom-fact)*100/fact [%] 10% 9% 8% 7% 6% 5% 4% 3% 2% 1% 0% 1% 2% 3% 4% 5% 6% 7% 8% 9% 10% The above vector diagram is configured with the parameter settings as in the following table. 7134 -50 SLPH[kW/%] Slope high. 7124 1 HYSH[%] Hysterese high in percentages of nominal frequency. DEIF A/S Page 90 of 199 . 5.11. 3 offsets are available. The enabled cos phi offsets will be added/subtracted from the fixed cos phi setpoint in menu 7052. where offsets can be used as an event or an output where offsets can be activted or deactivated. alarms and shutdown events will very likely occur. If the genset is not derated. If the ambient temperature increases to a level where the cooling water coolers decrease in cooling capacity. and maximum value is Pnom.1 Input selection The derate function can be configured to one of the following inputs: DEIF A/S Page 91 of 199 . Up to three derate curves can be made to derate the genset independent of each other. The first curve active will derate the genset to the adjusted setpoint.11. where offsets can be used as an event or an output where offsets can be activated or deactivated. The adjusted fixed power setpoint will be limited to be inside the values in menu 7023 "Minimum load". 3 offsets are available. 5. The cos phi offsets can be set in menu 7241-7245. The derate function is typically used when cooling problems are expected.12 Derate genset The purpose of the derate function is to be able to reduce the maximum output power of the genset if specific conditions require this. 5.1 Power offsets This function is for making a power offset from Pnom. which refers to Pnom.2 Cos phi offsets This function is for making a power offset from Pnom. it will be necessary to reduce the power of the genset. and maximum value is in menu 7173 "Cos phi (x2)". The adjusted fixed cos phi setpoint will be limited to be inside the values in menu 7171 "Cos phi (x2)".11 Power and cos phi offsets 5.AGC-4 DRH 4189340686 UK Additional functions 5. It is possible to enable offsets via M-Logic. It is possible to enable offsets in M-Logic.12. The offset can be set in menu 7220-7225. The enabled power offsets will be added/subtracted from the fixed power setpoint in menu 7051. An example of such a condition is the ambient temperature. and if the Pt100/Pt1000/VDO input is used. i. then the derating will be in %/ C. Be aware that the 4-20 mA input can be configured with different minimum and maximum settings. DEIF A/S Page 92 of 199 . Oil temp. The setting can be in mA (max.X) 4-20 mA Multi-input (M16.12.e. Derate limit (6246/6256/6266 Power derate) This is the lowest derate level. 20 mA) or in centigrades ºC (max.AGC-4 DRH 4189340686 UK Additional functions Input Multi-input 102 (slot #7) Multi-input 105 (slot #7) Multi-input 108 (slot #7) Comment 0-40V DC 4-20 mA Pt100/1000 VDO Digital Analogue input (M15. if the 4-20 mA input is used. 200ºC). M-Logic Select the needed inputs in 6240-6250-6260 Power derate. The adjustment is in percent per unit. In this case the settings "start derate point" and "slope" use these new settings. Slope (6243/6253/6263 Power derate) Adjust the derating speed. Refer to the type label for information about engine interface selection.X) EIC (only with option H5/H7/H13) Water temp.2 Derate parameters The parameters that define the derate characteristics are the following: Start derate point (6240/6250/6260 Power derate) This is the setting where the derating must start. then the derating will be in %/mA.X) 0-5V DC 4-20 mA Pt100 External analogue input (H8. 5. 3 Derate characteristic It can be selected whether the characteristic of the derating should be proportional or inverse proportional. The drawing above shows the inverse characteristic.AGC-4 DRH 4189340686 UK Additional functions P PNOM PLIMIT mA 0 10 16 20 Start derate 5. P PNOM PLIMIT mA 0 10 Start increase 16 20 The genset is derated when the control value is lower than the setpoint (in the example above the control value is an mA signal). The proportional characteristic is illustrated below.12. The derate characteristic is selected in 6240/6250/6260 Power derate Setting OFF: Setting ON: DEIF A/S Inverse characteristic Proportional characteristic Page 93 of 199 . 5. The function is typically used in installations where the genset is exposed to low temperatures which could generate starting problems or damage the genset. DEIF A/S Page 94 of 199 . If the idle run function is selected by means of timer. It has to be noted that the governor itself must handle the idle speed based on a digital signal from the unit (see the principle diagram below). the genset will start. Notice that this is option-dependent. the low speed input is overruled. This input does not prevent the genset from stopping . The input must be configured through the PC software at commissioning.1 Description The function is enabled and configured in 6290 Idle running. One timer is used in the start sequence.it is only a selection between idle and nominal speed. 2 Temperature control input When this input is activated. Input Description 1 Low speed input This input is used to change between idle speed and nominal speed. It will not be able to stop as long as this input is activated. The main purpose of the function is to prevent the genset from stopping.AGC-4 DRH 4189340686 UK Additional functions 5. and one timer is used in the stop sequence. It is possible to use the idle run function with or without timers. The timers are available to make the function flexible. One extra relay output must be available on the unit.13 Idle running The purpose of the idle run function is to change the start and stop sequences to allow the genset to operate under low temperature conditions.13. When the function is enabled. two digital inputs are used for control purposes: No. Two timers are available. The speed governor must be prepared for the idle run function if this function is to be used. Turbo chargers not originally prepared for operating in the low speed area can be damaged if the genset is running in "idle run" for too long. In that case the characteristic looks like this: DEIF A/S Page 95 of 199 . It also decreases the speed to the idle level for a specified delay time before stopping. The start and stop sequences are changed in order to let the genset stay at the idle level before speeding up. then the digital input "temp control" must be left ON at all times.2 Examples Idle speed during starting and stopping In this example both the start and the stop timers are activated.13. RPM 1500 tSTART tSTOP 300 t Start Stop Idle speed. If the genset is to be prevented from stopping.Additional functions AGC-4 DRH 4189340686 UK Start/stop gen-set High/low speed selection Low speed input Idle run input relay Multi-line 2 GOVERNOR Temperature control input Actuator 5. no stopping In this example both timers are deactivated. 13.13.5 Running signal The running feedback must be activated when the genset is running in idle mode. VDO oil 102. 5.Additional functions AGC-4 DRH 4189340686 UK RPM 1500 300 t Start Stop The oil pressure alarm (VDO oil) will be enabled during idle run if set to "ON". except for the oil pressure alarms. 5.4 Inhibit The alarms that are deactivated by the inhibit function are inhibited in the usual manner. 105 and 108 which are active during "idle run" as well.13. 5. DEIF A/S Page 96 of 199 .3 Configuration of digital input The digital input is configured via the PC software. 13. 5.6 Idle speed flowcharts The flowcharts illustrate the starting and stopping of the genset by use of the inputs "temp control" and "low speed".13.AGC-4 DRH 4189340686 UK Additional functions 5.7 Start Start No No starting No Temp control ON Auto start/stop ON Yes Start the Genset Yes Start the Genset Idle timer on Yes No Timer expired No Lowspeed ON No Yes Yes Genset running at idle speed Genset running at f Nom End DEIF A/S Page 97 of 199 . 14 Engine heater This function is used to control the temperature of the engine.AGC-4 DRH 4189340686 UK Additional functions 5.8 Stop Start Auto start/stop OFF No Temp control OFF Yes No Genset running at idle speed Yes Genset stop sequence No Lowspeed ON Idle timer on No Yes Yes Genset running at idle speed No Idle timer expired Yes Genset stop sequence End 5. A sensor measuring the cooling water temperature is used to activate an external heating system to keep the engine at a minimum temperature. The setpoints adjusted in menu 6320 are: Setpoint: This setpoint +/. DEIF A/S Page 98 of 199 . Output A: The relay output for the engine heater.the hysteresis is the start and stop points for the engine heater. Input type: Multi-input to be used for temperature measurement.13. e. an alarm will be raised if configured in menu 6330. The most common example of such equipment is alarm clocks. a difference will exist between the actual number of periods and the theoretical number of periods.14. Due to the accuracy of the timekeeper.15 Master clock The purpose of the master clock is to control the frequency of the genset in order to obtain the correct number of periods.AGC-4 DRH 4189340686 UK Additional functions Hysteresis: This decides how big a deviation from the setpoint is needed to activate/deactivate the engine heater. Principle diagram: 43°C 37°C Engine heater relay Start attempt DG running The engine heater function is only active when the engine is stopped. Enable: Enables the engine heater function. e.g. DEIF A/S Page 99 of 199 . 5.g. The timekeeper function works based on an oscillating crystal instead of zero crossings of the AC measurements.1 Engine heater alarm If the temperature keeps dropping after the start setpoint has been exceeded. 5. This function can only be used if island operation is selected. once every month. The unit’s internal clock is a timekeeper which is included in the battery backed memory circuit. it is recommended to synchronise the clock on a regular basis. Equipment that works based on the zero crossings will be affected by the surplus or missing zero crossings. due to the dead band setting of the frequency controller. In a 50 Hz system one period lasts 20 ms. If this changes. 16 Battery test This function gives the possibility to test the condition of the battery. 6402 Stop Stop time. the test will automatically be interrupted. DEIF A/S Page 100 of 199 . The compensation period starts at the adjusted time.15.AGC-4 DRH 4189340686 UK Setting Additional functions Description Comment 6401 Start Start time. 5.0. the battery voltage will decrease. 6404 Compensation Frequency difference when the compensation is initiated. During the test. If a mains failure occurs during the battery test sequence. The battery test can be initiated with a digital input and is available when the genset is in semi-auto and auto mode. The compensation period stops at the adjusted time.1 Compensation time The time for the compensation can easily be calculated at a given adjustment of 6403 and 6404 (example): ● ● 6403 = 30 seconds 6404 = +/.1 Hz 5. and an alarm will occur if it drops to the setpoint. +/. and the automatic mains failure start up sequence will be activated. 6405 Enable Enables the function.value. The compensation frequency must be adjusted to a value higher than the dead band setting. 6403 Difference The setpoint in seconds that initiates the compensation. Start relay Stop coil or Run coil Start test DEIF A/S Page 101 of 199 . once every week. Otherwise. the test command will be ignored. the test stops when the battery test alarm occurs. The stop relay stays deactivated during the test. The test is typically used at periodical intervals. The engine must be at a standstill when the test is started. The drawing below shows that when the test is started. whereas test #2 reaches the alarm setpoint.AGC-4 DRH 4189340686 UK Additional functions UBATTERY tBAT TEST tBAT TEST Alarm Cancel test t Test 1 Test 2 The drawing shows that test #1 is carried out without a large voltage drop of the battery voltage. the start relay activates making the engine turn. e.g. The stop relay will act depending on the coil type: Stop coil: Run coil: The stop relay activates during the test. As there is no reason to wear the battery down even more. 5. If AUTO mode is selected. 1. it is necessary to configure a digital input that initiates the function. e. 6 or 7 is used. Reference of asymmetry measurement no. the mains failure sequence will be initiated if a mains failure occurs during the battery test. asymmetry) The reason for making the battery asymmetry test is to determine if one of the batteries is getting weak. Reference of asymmetry measurement no.g.2 Auto configuration If the automatic battery test is used.AGC-4 DRH 4189340686 UK Additional functions 5.16. If application 3. once a week. The factory setting in menu 6424 is 52 weeks. It is expected that the multi-inputs used for the battery test are configured to "0-40V DC". the function has to be enabled in menu 6420. The shown applications are merely examples – the choice of multi-input (MI) or power supply input is configurable in menu 6410. When the function is enabled.1 Input configuration If this function is to be used.16.16. 2. The following seven battery applications are supported. 5. the battery test will be carried out with a specified interval. it is expected that one of the multi-inputs is used for the battery test of the starter battery. The input type to be used for calculation of battery asymmetry 2.3 Battery asymmetry (6430 Batt. The battery asymmetry is a combination of measurements and calculations. DEIF A/S Page 102 of 199 . Completed battery tests will be logged in a separate battery test log. Setpoints available: T1: RF1: T2: RF2: The input type to be used for calculation of battery asymmetry 1. This is done in the dialogue box below. This means that the automatic battery test will be executed once a year. AGC-4 DRH 4189340686 UK Additional functions Application 2: Application 1: Multi-line 2 Multi-line 2 AUX MI 2 MI 1 E F AUX MI 1 A E - + A B - + Start/Manoeuvre battery - + - + - + - + Start/Manoeuvre battery Application 3: Application 4: Multi-line 2 Multi-line 2 AUX AUX MI 3 MI 1 E A - + B B C - D MI 1 E A B .+ + Manoeuvre battery Start battery - + - + Manoeuvre battery Application 5: Multi-line 2 AUX MI 2 MI 1 E F A B - + - + - + - + Manoeuvre battery DEIF A/S Page 103 of 199 .+ . + -+ -+ . e.5V DC It is expected that the multi-inputs used for the battery asymmetry are configured to "0-40V DC".Additional functions AGC-4 DRH 4189340686 UK Application 6: Application 7: Multi-line 2 MI 3 MI 2 MI 1 B C EF D AUX A Multi-line 2 A AUX MI 2 MI 1 E F MI 3 B C D .+ . By making these measurements it is possible to calculate the voltage between E and B.+ Manoeuvre battery Start battery Manoeuvre battery Start battery Looking at battery application 1 as an example: Application 1: Multi-line 2 AUX MI 1 A E - + B - + Start/Manoeuvre battery The power supply measurement is used as the reference RF1 (point A and B) in menu 6432 and multi-input 1 is used as the type T1 (point A and E) in menu 6431. The selection power supply is referring to the supply on terminals 1 and 2. DEIF A/S Page 104 of 199 .+ .+ .+ .g.+ .+ -+ -+ . This gives a full picture of battery voltages.+ .+ .: Measured value A/B (RF1) = 21V DC Measured value A/E (T1) = 12V DC Calculated value E/B (RF1 – T1) = 9V DC Battery asymmetry = E/B – (RF1*1/2) = 9 – (21*1/2) = -1.+ . Battery asymmetry alarm Alarms for battery asymmetry 1 and 2 are set up in menus 6440 and 6450.+ . AGC-4 DRH 4189340686 UK Additional functions The setpoint in menus 6440 and 6450 is only set in positive values. 5. The function only supports the Danish rules. Enable: Enable/disable the ventilation function.17 Ventilation This function can be used to control the cooling of the engine.17. The purpose is to use a multi-input for measuring the cooling water temperature and that way activate an external ventilation system to keep the engine below a maximum temperature. 5. however. The functionality is shown in the below diagram. Hysteresis: The number of degrees the temperature has to be below the setpoint in order to deactivate the relay set in OA. 95°C 85°C Relay 5. Setpoints available (6460 Max ventilation): Setpoint: The limit for activation of the relay set in OA. it will also trigger if the battery asymmetry calculation results in a negative value.1 Max. Output A (OA): The relay activated when the setpoint is exceeded.18 Summer/winter time This function is used to make the AGC unit automatically adjust the clock in the unit according to summer and winter time. DEIF A/S Page 105 of 199 . The function is enabled in menu 6490. ventilation alarm Two alarms can be set up in menu 6470 and menu 6480 to activate if the temperature keeps rising after the start setpoint has been reached. The type of input to use for the temperature measurement is selected in menu 6323 Engine heater. Output B: Relay to activate when the delay has expired. this function will block the start sequence of the genset in case the genset is not running. regardless of running mode. the genset will trip the breaker. ON: All start sequences. Parallel: OFF: Only AMF start sequence is blocked when the input is active. Enable: Enable/disable the alarm function. are blocked when the input is active. the alarm will be activated when this delay has expired.2 Stop swbd error (menu 6510) When activated. The function is active regardless of the "Enable" setting. The functions are activated by using one configurable input (switchboard error) which is configured with the PC utility software The functionality of the “switchboard error” input is active as soon as the input is configured.19.AGC-4 DRH 4189340686 UK Additional functions 5.1 Block swbd error (menu 6500) When activated.19 Switchboard error The switchboard error function is handled in two different menus: 6500 "Block swbd error" and 6510 "Stop Swbd error". this function will stop the genset if the genset is running in Auto mode. cool down and stop. 5. 5.19. Output B: Relay to activate when the delay has expired. The “enable” in menus 6500 and 6510 only refers to the alarm function. Output A: Relay to activate when the delay has expired. DEIF A/S Page 106 of 199 . Output A: Relay to activate when the delay has expired. Fail class: The fail class of the alarm. 5. Setpoints available: Delay: When the input is active and the delay has expired. Enable: Enable/disable the alarm function. Setpoints available: Delay: When the input is active.20 Not in auto This function can be used for indication or to raise an alarm in case the system is not in Auto. The function is set up in menu 6540. Fail class: The fail class of the alarm. Parameter Name Function 6551 Fuel pump log. 6554 Output A The output relay to be used for control of the fuel pump. Choose "auto detection" if an RMI is used. DEIF A/S Page 107 of 199 .AGC-4 DRH 4189340686 UK Additional functions 5. start Fuel transfer pump start point in percentage. 6555 Type The multi-input or external analogue input to be used for the fuel level sensor. The start and stop limits are detected from one of the three multi-inputs. Setpoints available in menu 6550: The fuel pump relay can be activated via M-Logic. The output relay should be configured as a limit relay. stop Fuel transfer pump stopping point in percentage. 6556 Fail class The fail class of the fuel fill alarm. Otherwise. Choose multi-input if 4-20 mA is used. 6552 Fuel pump log. The selected relay activates below the start limit and deactivates above the stop level.21 Fuel pump logic The fuel pump logic is used to start and stop the fuel supply pump to maintain the fuel level in the service tank at predefined levels. an alarm will be raised whenever the output is activated. 6553 Fuel fill check Delay timer before activating fuel fill check alarm. Fuel level Fuel service tank level 80% 20% Time Fuel pump start level Fuel pump stop level 5. DEIF A/S Page 108 of 199 . then the fuel pump relay deactivates and a Fuel fill alarm occurs. ∆ level. If the fuel level does not increase by 2% within the adjusted delay time.AGC-4 DRH 4189340686 UK Additional functions The below drawing shows how the fuel pump is activated when the level reaches 20% and stopped again when the level has reached 80%. the fuel level must increase by 2% within the fuel fill check timer set in menu 6553. 2% ∆ level.1 Fuel fill check The fuel pump logic includes a Fuel fill check function. When the fuel pump is running. 2% tFill check The level of increase is fixed at 2% and cannot be changed.21. the "Safety stop" will have the same function as "Trip and stop". DEIF A/S Page 109 of 199 .22 Fail class 5. The tables below illustrate the action of each fail class when the engine is running or stopped. Eight different fail classes can be used. an alarm has been configured with the "shutdown" fail class.1 Fail class All activated alarms must be configured with a fail class. If power management is not active. 5. The fail classes define the category of the alarms and the subsequent alarm action.AGC-4 DRH 4189340686 UK Additional functions 5. for instance. The fail class "Trip MB/GB" will only trip the generator breaker if there is no mains breaker present.22. ● ● ● ● ● The alarm horn relay will activate The alarm will be displayed in the alarm info screen The generator breaker will open instantly The genset is stopped instantly The genset cannot be started from the unit (see next table) The fail class "Safety stop" will only deload the genset before opening the breaker if option G4 or G5 (power management) is used. If. the following actions occur. breaker 1 Block X X 2 Warning X X 3 Trip GB X X X 4 Trip + stop X X X 5 Shutdown X X X 6 Trip MB X X 7 Safety stop X X 8 Trip MB/GB X X Trip of mains breaker Coolingdown genset Stop genset X X X X (X) X (X) X X X The table illustrates the action of the fail classes.22.2 Engine running Fail class Action Alarm horn relay Alarm display Deload Trip of gen. 3 Engine stopped Fail class 1 Block Action Block engine start Block MB sequence Block GB sequence X 2 Warning 3 Trip GB X X 4 Trip + stop X X 5 Shutdown X 6 Trip MB X X 7 Safety stop X 8 Trip MB/GB (X) X (X) In addition to the actions defined by the fail classes.AGC-4 DRH 4189340686 UK Additional functions 5. To change the fail class via the PC software. Select the desired fail class in the fail class roll-down panel. 5. The fail class "Trip MB/GB" will only block engine start and GB sequence if there is no mains breaker present. it is possible to activate one or two relay outputs if additional relays are available in the unit.22.22. the alarm function to be configured must be selected. DEIF A/S Page 110 of 199 .4 Fail class configuration The fail class can be selected for each alarm function either via the display or the PC software. 2. When the adjusted time expires. 5. The unit is able to trip three NEL groups due to: ● ● ● the measured load of the generator set (high load and overload) the measured current of the generator set the measured frequency at the busbar The load groups are tripped as three individual load groups. Only the measurement of either the busbar frequency or the load/current on the generator set is able to trip the load groups. please refer to the description of outputs. This may prevent a possible blackout at the busbar caused by an overload on the running generator set. Running hours: The number of running hours to activate the alarm. Setpoints available in menus 6110 and 6120: Enable: Enable/disable the alarm function. Day: The number of days to activate the alarm – if the running hours are not reached before this number of days. The running hours is counting when the running feedback is present. Two service timers are available to cover different intervals. This may prevent a possible blackout at the busbar. The service timer alarm will be activated at 8:00 AM on the day the alarm expires. For output setup. The trip of Non Essential Load (NEL) groups (load shedding) is carried out in order to protect the busbar against an imminent blackout situation due to either a high load/current or overload on a generator set or a low busbar frequency. the unit will display an alarm. 1 has no direct influence on the trip of load group no.1 Trip of NEL The two terms "trip of non-essential load" and "load shedding" describe the same functionality. The service timer alarm will be activated as soon as the running hours have been reached. The current trip will be selected in case of inductive loads and unstable power factor (PF <0. Trip of the NEL groups due to a low busbar frequency will reduce the real power load at the busbar and thus reduce the load percentage on the generator set. Trip of the NEL groups due to the load of a running generator set will reduce the load on the busbar and thus reduce the load percentage on the running generator set. The function is based on running hours. The service timers are set up in menus 6110 and 6120.24 Service timers The unit is able to monitor the maintenance intervals.7) where the current is increased. the alarm will still be activated.23. This means that the trip of load group no.23 Trip of non-essential load (NEL) 5. DEIF A/S Page 111 of 199 .AGC-4 DRH 4189340686 UK Additional functions 5. then it is possible to enable the wire break function for each input.0 ohm - > 195.0 ohm VDO configurable < lowest resistance - > highest resistance P100 < 82. DEIF A/S Page 112 of 199 .AGC-4 DRH 4189340686 UK Additional functions Fail class: The fail class of the alarm. 5.0 ohm VDO Temp. If the measured value on the input is outside the normal dynamic area of the input.0 ohm VDO Temp. type 3 < 0.0 ohm VDO Fuel. type 1 < 0. the measured value will drop to zero. Input 4-20 mA 0-40V DC Wire failure area Normal range Wire failure area < 3mA 4-20 mA > 21 mA ≤ 0V DC - N/A VDO Oil.0 ohm - > 195. type 2 < 4.0 ohm VDO Oil.6 ohm - > 97. Output A: Relay to be activated when the alarm is activated.25 Wire fail detection If it is necessary to supervise the sensors/wires connected to the multi-inputs and analogue inputs.0 ohm - > 488. type 1 < 4. Reset: Enabling this will reset the service timer to zero. This must be done when the alarm is activated.0 ohm - > 195. type 2 < 1.3 ohm - > 194. type 1 < 1.0 ohm - > 488. it will be detected as if the wire has made a short circuit or a break.0 ohm VDO Fuel. Then the alarm will occur.1 ohm P1000 < 823 ohm - > 1941 ohm Level switch Only active if the switch is open Principle The illustration below shows that when the wire of the input breaks.0 ohm VDO Temp. type 2 < 1. An alarm with a configurable fail class will be activated.6 ohm - > 97. DEIF A/S Page 113 of 199 .AGC-4 DRH 4189340686 UK Additional functions Input signal (mA. In this case an alarm will be raised if the wire connection between the AGC and MPU breaks. Stop coil wire break (menu 6270) The alarm will occur when the stop coil is not activated (generator is running) and the input is deenergised. °C. %) Upper failure limit Wire failure Lower failure limit Wire failure t Wire break MPU wire break (menu 4550) The MPU wire break function is only active when the genset is not running.b. AGC-4 DRH 4189340686 UK Additional functions 5.26 Digital inputs The unit has a number of binary inputs some of which are configurable and some are not. Engine interface card Available digital inputs – not configurable Available digital inputs– configurable M4 (standard) 1 6 Input function Auto Semi Test Man Block Configurable Input type X X Configurable Constant 1 Shutdown override X X X 2 Access lock X X X X X Configurable Constant 3 Running feedback X X X X X Configurable Constant 4 Remote start X X Configurable Pulse 5 Remote stop X X Configurable Pulse 6 Semi-auto X 7 Test X 8 Auto X X 9 Manual X X 10 Block X X 11 Remote GB ON 12 X X Configurable Pulse X X Configurable Pulse X X Configurable Pulse X Configurable Pulse Configurable Constant X Configurable Pulse Remote GB OFF X Configurable Pulse 13 Remote MB ON X Configurable Pulse 14 Remote MB OFF Configurable Pulse 15 Remote alarm acknowledge X Configurable Constant 16 Auto start/stop X Configurable Constant 17 Remove starter X X X X Configurable Constant 18 Reset analogue GOV/AVR outputs X X X X Configurable Pulse 19 Manual GOV up X X X X Configurable Constant 20 Manual GOV down X X X X Configurable Constant 21 Manual AVR up X X X X Configurable Constant 22 Manual AVR down X X X X Configurable Constant 23 GB position ON X X X X X Not configurable Constant 24 GB position OFF X X X X X Not configurable Constant 25 MB position ON X X X X X Not configurable Constant 26 MB position OFF X X X X X Not configurable Constant 27 Emergency stop X X X X X Not configurable Constant 28 Low speed X X X Configurable Constant 29 Temperature control X X X Configurable Constant 30 Battery test X X Configurable Pulse DEIF A/S X X X X X X X X X X Page 114 of 199 . 2. but it can be configured in 6180 Start. It will only be possible to view measurements. X X X X X Configurable Constant 41 Start enable X X X X Configurable Constant 42 Alternative start X X X X X Configurable Constant 43 Switchboard error X X X X X Configurable Constant 44 Total test X X X X X Configurable Constant 45 GB spring loaded X X X X X Configurable Constant 46 MB spring loaded X X X X X Configurable Constant 47 1st priority mains X X X X X Configurable Constant 48 Ext. alarms and the log. DEIF A/S Page 115 of 199 . Running feedback The input is used as a running indication of the engine.Additional functions AGC-4 DRH 4189340686 UK Input function Auto Semi Test Man Block X X 31 Mains OK X X X 32 External f control X X 33 External P control X 34 External PF control 35 Configurable Input type Configurable Pulse X Configurable Constant X X Configurable Constant X X X Configurable Constant External U control X X X Configurable Constant 36 External Q power X X X Configurable Constant 37 MB close inhibit X X X X X Configurable Constant 38 Enable mode shift X X X X X Configurable Constant 39 Enable GB black close X X X X X Configurable Constant 40 Enable sep.26. OFF X X X X X Configurable Constant 49 Heavy consumer 1 request X X X X X Configurable Constant 50 Heavy consumer 2 request X X X X X Configurable Constant 51 Deload X Configurable Constant 52 GB OFF and BLOCK Configurable Pulse 53 HC 1 fixed load feedback X X X X X Configurable Constant 54 HC 2 fixed load feedback X X X X X Configurable Constant 55 Secured ON X X X X X Configurable Pulse 56 Secured OFF X X X X X Configurable Pulse 57 Base load Configurable Constant X X 5. Access lock Activating the access lock input deactivates the control display push-buttons. The number of start attempts is seven by default. sync. Also a special cool down timer is used in the stop sequence after an activation of this input. the start relay is deactivated. Shutdown override This input deactivates all protections except the overspeed protection and the emergency stop input. 3.1 Functional description 1. MB pos. When the input is activated. the running mode cannot be changed by activating the digital inputs. If the mains breaker is closed. and the alarm LED on the display stops flashing. Remote GB OFF The generator breaker OFF sequence will be initiated. Semi-auto Changes the present running mode to semi-auto. The genset will stop without cooling down. 10. The genset will be stopped if the input is deactivated. Remote MB ON The mains breaker ON sequence will be initiated and the breaker will synchronise if the generator breaker is closed. Remove starter The start sequence is deactivated. or close without synchronising if the mains breaker is opened. 11. Test Changes the present running mode to test. Block Changes the present running mode to block. 5. 12. 17. Auto Changes the present running mode to auto. 13. Remote start This input initiates the start sequence of the genset when semi-auto or manual mode is selected. 14. Auto start/stop The genset will start when this input is activated. 6. and the starter motor will disengage. Remote MB OFF The mains breaker OFF sequence will be initiated. load takeover or mains power export and the AUTO running mode is selected. When block mode is selected. and the breaker will open instantly. or close without synchronising if the generator breaker is opened. Remote alarm acknowledge Acknowledges all present alarms. This means the start relay deactivates. 8. 15. Remote stop This input initiates the stop sequence of the genset when semi-auto or manual mode is selected. If the mains breaker is opened. 7. the generator load will be deloaded to the breaker open limit followed by a breaker opening. then the generator breaker will open instantly. fixed power. Manual Changes the present running mode to manual. DEIF A/S Page 116 of 199 . Remote GB ON The generator breaker ON sequence will be initiated and the breaker will synchronise if the mains breaker is closed. 9. The input can be used when the unit is in island operation. 16.AGC-4 DRH 4189340686 UK Additional functions 4. Manual AVR up If manual mode is selected. 22. 27. Emergency stop The input shuts down the engine immediately. 28. The manual governor and AVR increase and decrease inputs can only be used in manual mode. The unit requires this feedback when the breaker is opened or a position failure alarm occurs. then the AVR output will be increased. Reset analogue GOV/AVR outputs The analogue +/-20 mA controller outputs will be reset to 0 mA. then the reset position will be the specific adjustment. 23. Generator breaker closed feedback (GB position ON) The input function is used as an indication of the generator breaker position. All analogue controller outputs are reset. 20. then the governor output will be decreased. Mains breaker open feedback (MB position OFF) The input function is used as an indication of the mains breaker position. Manual GOV up If manual mode is selected. 24. That is the governor output and the AVR output if option D1 is selected. The shutdown fail class must be selected. Generator breaker open feedback (GB position OFF) The input function is used as an indication of the generator breaker position. The unit requires this feedback when the breaker is closed or a position failure alarm occurs. Manual AVR down If manual mode is selected. then the AVR output will be decreased. At the same time it opens the generator breaker. 26. 25. then the governor output will be increased. DEIF A/S Page 117 of 199 . Low speed Disables the regulators and keeps the genset running at a low RPM.AGC-4 DRH 4189340686 UK Additional functions 18. Manual GOV down If manual mode is selected. The unit requires this feedback when the breaker is closed or a position failure alarm occurs. 21. The governor must be prepared for this function. The unit requires this feedback when the breaker is opened or a position failure alarm occurs. Mains breaker closed feedback (MB position ON) The input function is used as an indication of the mains breaker position. If an offset has been adjusted in the control setup. 19. The internal setpoint will not be used. Enable GB black close When the input is activated. External power factor control The power factor setpoint will be controlled from the analogue inputs terminal 41/42. External frequency control The nominal frequency setpoint will be controlled from the analogue inputs terminal 40/41. or it stops (low speed = OFF). and the AGC will perform the AMF sequence in case of a mains failure. The internal setpoint will not be used. Activating this input will split the breaker close and breaker synchronisation functions into two different relays. When the input is high. the AGC is allowed to close the generator on a black busbar. External power control The power setpoint in fixed power will be controlled from the analogue inputs terminal 40/41. If the battery is weak. Enable separate sync. When the input is deactivated. providing that the frequency and voltage are inside the limits set up in menu 2110. External voltage control The nominal voltage setpoint will be controlled from the analogue inputs terminal 41/42. then the mains breaker cannot close. 35. the test will cause the battery voltage to drop more than acceptable.AGC-4 DRH 4189340686 UK Additional functions 29. MB close inhibit When this input is activated. The synchronisation function will be moved to a configurable relay dependent on the options configuration. 38. Battery test Activates the starter without starting the genset. When the input is configured. the setting in menu 7081 (mode shift ON/OFF) is disregarded. External reactive power The reactive power setpoint will be controlled from the analogue inputs terminal 41/42. The internal setpoint will not be used. The synchronisation of the mains breaker will happen when the input is activated. Temperature control This input is part of the idle mode function. 32. 39. 34. 30. The internal setpoint will not be used. This function is option-dependent. 37. Enable mode shift The input activates the mode shift function. Mains OK Disables the "mains OK delay" timer. then the genset goes to idle mode (low speed = ON). Option M12 or M14. 40. depending on the activation of the low speed input. It starts at high or low speed. The breaker close function will remain on the relays dedicated for breaker control. 33. The internal setpoint will not be used. then the genset starts. and an alarm will occur. DEIF A/S Page 118 of 199 .x is required. 31. 36. Heavy consumer 2 request This input is used in G5 applications with two generators or more to request heavy consumer 2 to start. 55.e. the input can be removed. 46. Start enable The input must be activated to be able to start the engine. 44. When the genset is started. 48. Alternative start This input is used to simulate an AMF failure and this way run a full AMF sequence without a mains failure actually being present. Ext. 51.AGC-4 DRH 4189340686 UK Additional functions 41. 1st priority mains This input is used in G5 applications with two mains connections to select which mains connection has 1st priority. 43. DEIF A/S Page 119 of 199 . HC 2 fixed load feedback HC 2 is running and consuming 100% power. one generator too many will be running when comparing with the actual power requirement. Heavy consumer 1 request This input is used in G5 applications with two generators or more to request heavy consumer 1 to start. 52. 42. 50. the genset will activate the stop sequence and when the genset is stopped. 53. GB spring loaded The AGC will not send a close signal before this feedback is present. MB spring loaded The AGC will not send a close signal before this feedback is present. GB OFF and BLOCK The generator breaker will open. 54. it will be blocked for start. Deload A running genset will start to ramp down the power. HC 1 fixed load feedback HC 1 is running and consuming 100% power. OFF This input is used in G5 applications with two mains connections to tell the AGC mains units that the mains breaker not controlled by them has been tripped. 47. Total test This input will be logged in the event log to indicate that a planned mains failure has been made. i. 45. Secured mode ON Secured mode adds an extra generator to the system. 49. MB pos. Switchboard error The input will stop or block the genset depending on running status. 3. 5.27.27 Outputs The unit has a number of output functions which can be configured to any available relay. X Configurable Pulse 3 Trip NEL 1 X X X X X Configurable Pulse 4 Trip NEL 2 X X X X X Configurable Pulse 5 Trip NEL 3 X X X X X Configurable Pulse 5. 4. Secured mode OFF Ends secured running mode (see 55). please refer to "Help" in this. HC 1 ack. Trip NEL 1 This output is used to trip load groups. Trip NEL 2 This output is used to trip load groups.1 Functional description 1. 2. HC 2 ack. DEIF A/S Page 120 of 199 . Trip NEL 3 This output is used to trip load groups. Please refer to the description of NEL.AGC-4 DRH 4189340686 UK Additional functions 56. 5. the base load will be lowered so the other generator(s) on line produces at least 10% power. This output is used in G5 applications with two or more generators to acknowledge the heavy consumer requested. Base load The generator set will run base load (fixed power) and not participate in frequency control. Please refer to the option G4/G5/G8 manual for reference. The input functions are set up with the PC utility software. X Configurable Pulse 2 HC 2 ack. 57. Output function Auto Semi Test Man Block Configurable Output type 1 HC 1 ack. Should the plant power requirement drop. This output is used in G5 applications with two or more generators to acknowledge the heavy consumer requested. 28. 4. 5. 5.3 Pt100/1000 This input type can be used for heat sensor.1 4-20 mA If one of the multi-inputs has been configured as 4-20 mA.28.4 VDO inputs The unit can contain up to three VDO inputs. The unit of the measured value can be changed from Celsius to Fahrenheit in the PC utility software in order to get the desired reading in the display. as the hardware design allows for several VDO types. The inputs have different functions.g. the unit and range of the measured value corresponding to 4-20 mA can be changed in the PC utility software in order to get the correct reading in the display. 8. cooling water temp. 7.Additional functions AGC-4 DRH 4189340686 UK 5. the menu numbers of the alarm settings for each multi-input is controlled by the configured input type as seen in the following table. For each input two alarm levels are available.28.28. 2. 5. DEIF A/S Page 121 of 199 . 5. 5. Input type Multi-input 102 Multi-input 105 Multi-input 108 4-20 mA 4120/4130 4250/4260 4380/4390 0-40V DC 4140/4150 4270/4280 4400/4410 Pt100/Pt1000 4160/4170 4290/4300 4420/4430 VDO oil 4180/4190 4310/4320 4440/4450 VDO water 4200/4210 4330/4340 4460/4470 VDO fuel 4220/4230 4350/4360 4480/4490 3400 3410 3420 Digital Only one alarm level is available for the digital input type. 3.2 0-40V DC The 0-40V DC input has primarily been designed to handle the battery asymmetry test. 4-20 mA 0-40V DC Pt100 Pt1000 VDO oil VDO water VDO fuel Digital The function of the multi-inputs can only be configured in the PC utility software.28 Multi-inputs The AGC unit has three multi-inputs which can be configured to be used as the following input types: 1. 6. e. Additional functions AGC-4 DRH 4189340686 UK These various types of VDO inputs are available for all multi-inputs: VDO oil: VDO water: VDO fuel: Oil pressure Cooling water temperature Fuel level sensor For each type of VDO input it is possible to select between different characteristics including a configurable. 5.28.5 VDO oil This VDO input is used for measuring the lubricating oil pressure. VDO sensor type Pressure Type 1 Type 2 Type 3 Ω Bar psi Ω Ω 0 0 10.0 10.0 0.5 7 27.2 1.0 15 44.9 1.5 22 62.9 2.0 29 81.0 2.5 36 99.2 3.0 44 117.1 3.5 51 134.7 4.0 58 151.9 4.5 65 168.3 5.0 73 184.0 6.0 87 124.3 7.0 102 140.4 8.0 116 155.7 9.0 131 170.2 10.0 145 184.0 31.3 51.5 71.0 89.6 107.3 The configurable type is configurable with eight points in the range 0-480 Ω. The resistance as well as the pressure can be adjusted. If the VDO input is used as a level switch, then be aware that no voltage must be connected to the input. If any voltage is applied to the VDO inputs, it will be damaged. Please refer to the Application Notes for further wiring information. 5.28.6 VDO water This VDO input is used for measuring the cooling water temperature. DEIF A/S Page 122 of 199 AGC-4 DRH 4189340686 UK Additional functions VDO sensor type Temperature Type 1 Type 2 Type 3 Type 4 Ω °C °F Ω Ω Ω 40 104 291.5 480.7 69.3 50 122 197.3 323.6 60 140 134.0 222.5 70 158 97.1 157.1 80 176 70.1 113.2 90 194 51.2 83.2 100 212 38.5 62.4 110 230 29.1 47.6 120 248 22.4 36.8 130 266 28.9 140 284 22.8 150 302 18.2 36.0 19.8 11.7 7.4 The configurable type is configurable with eight points in the range 0-480 Ω. The temperature as well as the resistance can be adjusted. If the VDO input is used as a level switch, then be aware that no voltage must be connected to the input. If any voltage is applied to the VDO inputs, it will be damaged. Please refer to the Application Notes for further wiring information. 5.28.7 VDO fuel This VDO input is used for the fuel level sensor. VDO sensor type Type 1 Value Resistance 0% 78.8 Ω 100% 1.6 Ω VDO sensor type Type 2 Value Resistance 0% 3Ω 100% 180 Ω If the VDO input is used as a level switch, then be aware that no voltage must be connected to the input. If any voltage is applied to the VDO inputs, it will be damaged. Please refer to the Application Notes for further wiring information. DEIF A/S Page 123 of 199 AGC-4 DRH 4189340686 UK Additional functions VDO sensor type Value Type configurable % Resistance 0 10 20 30 40 50 60 70 80 90 100 The configurable type is configurable with eight points in the range 0-480 Ω. The value as well as the resistance can be adjusted. 5.28.8 Illustration of configurable inputs Resistance (Ω) Setpoint 8 Setpoint 7 Setpoint 6 Setpoint 5 Setpoint 4 Setpoint 3 Setpoint 2 Setpoint 1 1 2 3 4 5 6 7 8 Value (bar, °C or %) Setpoints DEIF A/S Page 124 of 199 but only in the PC utility software. 5.0 bar.10 Scaling of 4-20 mA inputs The scaling of the analogue inputs is made to ensure that the readout of the inputs is made with a resolution that fits the connected sensor.28.AGC-4 DRH 4189340686 UK Additional functions 5. The alarm settings can be changed both in the display and in the PC utility software.9 Configuration The eight curve settings for the configurable VDO inputs cannot be changed in the display. In the example above the adjustment is 10 Ω at 0. DEIF A/S Page 125 of 199 . In the PC utility software the configurable inputs are adjusted in this dialogue box: Adjust the resistance of the VDO sensor at the specific measuring value.28. It is recommended to follow the list below when changing the scaling of the analogue inputs. AGC-4 DRH 4189340686 UK Additional functions 1. Then the alarm parameters for the multi-inputs can be configured. 2. One decimal: 0-5 bar oil pressure transducer (4-20 mA) Decimals = 1 DEIF A/S Page 126 of 199 .20 mA.5 bar in the measuring range 4.. This means that the reading remains the same . the setpoint can only be adjusted in steps of one bar. 5. The setup of the multi-inputs and alarm parameters must be done in the above order. If not.... This is done in menu 10980-11000 for multi-input 102-108 and in menu 11120-11190 for option M15 or M16.but decimals are added. 6. Set up the multi-input for 4-20 mA. Activate the AUTO SCALE enable check box when setting up the inputs. The display will show 0. A parameter file (usw file) should always be saved without the AUTO SCALE enabled. Now the scaling parameters are available in menu 11010-11110. which gives a very rough range of setting. Setting up decimals: No decimals: 0-5 bar oil pressure transducer (4-20 mA) Decimals = 0 Without use of decimals. 3. 4. the alarm levels will be wrong. Deactivating AUTO SCALE will make the reading smaller by a factor of 10 for each decimal added. 0 mA (0.0-0. 0-5 bar: The display will then show 0 at 4 mA. Setting up the measuring range of the sensor: The measuring range of the multi-input is set up inside the actual alarm: The three dots to the left of the figures is a button.g. AUTO SCALE = enabled Decimals = 1. DEIF A/S Page 127 of 199 . In other words. the "Auto scaling" bit decides where the decimal point is placed.4-2. Scale the input as required.AGC-4 DRH 4189340686 UK Additional functions Auto scale = enable Decimals = 1. the 4-20 mA will be presented as 0.5 bar). AUTO SCALE = disabled Regarding AUTO SCALE: if the number of decimals is changed without enabling the setpoint. e. 28. If they are not set up. 5. the AUTO SCALE is then deactivated (automatically cleared by the device). they become available as a configurable input.11 Digital If the multi-inputs are configured to "Digital". and the settings will not be modified again if the parameters are reloaded to the device. it is a good idea to select AUTO SCALE. the selection of AUTO SCALE depends on whether the alarm inputs are already set up. it would still only be possible to adjust the setpoint without decimals. If they are set up. it is necessary to make a readjustment of the alarm: Change it to match the new selection of decimals. it is voluntary if AUTO SCALE is selected. After having set up the 4-20 mA inputs (HW as well as alarms).AGC-4 DRH 4189340686 UK Additional functions In order to get the alarm input to work again after changing the "decimal setting". the parameter file should be uploaded from the device to the PC and then saved. Reload parameters: It is necessary to upload the parameters from the device to the computer after changing the scale (no decimal/one decimal/two decimal) settings. Save the parameter file: A parameter file (usw file) should always be saved without the AUTO SCALE enabled. This is in order to refresh the parameter list so the alarm settings present the correct value: In the example shown above. DEIF A/S Page 128 of 199 . In this way. Therefore. when selecting decimals. If the file is saved with the AUTO SCALE enabled. the value can be adjusted with one decimal. If the parameters were not refreshed. then the minimum and maximum values of the alarm will be affected (multiplied by 10 or 100) at the next use of the parameter file (under certain conditions). the governor setpoint will be changed. the regulation setpoint returns to nominal. When using the display arrows for increasing or decreasing. this is the Reg. For the digital input and AOP buttons.29. the nominal frequency or voltage setpoint will be changed and also displayed.29. the output will change as long as the button is active. When activating the up or down arrows.29 Manual governor and AVR control The manual governor and AVR control function can be activated by pressing more than two seconds. there is a timer so that it is possible to choose how long one pulse should be. the active or reactive nominal power setpoint value will be changed. The Reg. increase or decrease of the output.29. The value Setp can be changed by pressing the arrow up or down. then one press on the AOP or one pulse from digital input will give 5 sec. the regulation window is automatically opened.Additional functions AGC-4 DRH 4189340686 UK 5.. The function of the regulation window depends on the selected mode: G 0 P-Q Setp P-Q Reg. the output value to GOV or AVR is changed. the timer parameter is 2782 and for AVR. To exit the regulation window press "back". an offset will be added to or subtracted from the nominal value. When changing the Setp value. 0 100% 50% 0V 100% 60% GOV AVR 5. the timer can be set to 0.1-10 sec. When the digital inputs or AOP buttons are deactivated. it is 2784. the regulation setpoint returns to nominal. DEIF A/S Page 129 of 199 .2 Semi-auto mode As in manual mode. If the genset is running in parallel. If it is a stand-alone genset not parallel to the mains. If the digital inputs or AOP buttons are activated in semi-auto. If for example the timer is set to 5 sec. value is the output value from the regulator. value in the display. except from the fact that activating the digital inputs or AOP buttons for governor or AVR control will change the regulation setpoint but not open the regulation window. When the "back" button is activated. The up and down arrows have the same function as the digital inputs or AOP buttons for governor and AVR control when the window is open. When GOV is underlined. and vice versa when the AVR is underlined.1 Manual mode In manual mode the regulation is deactivated. or by activating the digital inputs or AOP buttons for governor or AVR control in semi-auto mode. 5. the up and down arrows have the same function as the digital inputs or AOP buttons for governor or AVR control when the window is open. 5.3 Auto and test mode Like semi-auto. For the governor. The intention of this function is to give the commissioning engineer a helpful tool for adjustment of the regulation. and it cannot be changed. The relay output function can be selected to be ND (Normally Deenergised). normally open This will initiate an alarm when the signal on the digital input appears. NE (Normally Energised). + V DC Alarm input Multi-line 2 Dig in Relayout Com 5. Digital input alarm configured to NO.31 Language selection The unit has the possibility to display different languages.Additional functions AGC-4 DRH 4189340686 UK AVR setpoint manipulation requires option D1. normally closed This will initiate an alarm when the signal on the digital input disappears. 2. The possible selections of the input function are normally open or normally closed. The language can be changed when connected to the PC utility software. This is done via the PC utility software. It is not possible to make language configuration from the display. It is delivered with one master language which is English. Regarding AOP setup. This is the default language. 5. Limit or Horn. The languages are selected in the system setup menu 6080.30 Input function selection Digital input alarms can be configured with a possibility to select when the alarms are to be activated. In addition to the master language 11 different languages can be configured. The drawing below illustrates a digital input used as an alarm input. 1. but the already configured languages can be selected. please refer to "Help" in the PC utility software. Digital input alarm configured to NC. DEIF A/S Page 130 of 199 . The table below indicates the texts in the status line. DEIF A/S Page 131 of 199 .32 Texts in status line The status texts must be self-explanatory. If the operator does something wrong. then the status line must indicate it.AGC-4 DRH 4189340686 UK Additional functions 5. 32. GB open and an active "Trip GB" alarm SHUTDOWN OVERRIDE The configurable input is active DEIF A/S Page 132 of 199 .#min FULL TEST ###.AGC-4 DRH 4189340686 UK Additional functions 5.#min ISLAND MAN ISLAND SEMI Genset stopped or running and no other action taking place READY ISLAND AUTO Genset stopped in Auto ISLAND ACTIVE Genset running in Auto AMF MAN AMF SEMI Genset stopped or running and no other action taking place READY AMF AUTO Genset stopped in Auto AMF ACTIVE Genset running in Auto FIXED POWER MAN FIXED POWER SEMI Genset stopped or running and no other action taking place READY FIXED P AUTO Genset stopped in Auto FIXED POWER ACTIVE Genset running in Auto PEAK SHAVING MAN PEAK SHAVING SEMI Genset stopped or running and no other action taking place READY PEAK SHAV AUTO Genset stopped in Auto PEAK SHAVING ACTIVE Genset running in Auto LOAD TAKEOVER MAN LOAD TAKEOVER SEMI Genset stopped or running and no other action taking place READY LTO AUTO Genset stopped in Auto LTO ACTIVE Genset running in Auto MAINS P EXPORT MAN MAINS P EXPORT SEMI Genset stopped or running and no other action taking place READY MPE AUTO Genset stopped in Auto MPE ACTIVE Genset running in Mains power export mode DG BLOCKED FOR START Generator stopped and active alarm(s) on the generator GB ON BLOCKED Generator running.#min Test mode activated and test timer counting down LOAD TEST ###.1 Standard texts Status text Condition BLOCK Block mode is activated SIMPLE TEST Test mode is activated Comment LOAD TEST FULL TEST SIMPLE TEST ###. AGC-4 DRH 4189340686 UK Additional functions Status text Condition Comment ACCESS LOCK The configurable input is activated.0 s Page 133 of 199 . The genset will not stop until a timer has expired IDLE RUN ###. Compensation is active Aux. and the operator tries to activate one of the blocked keys GB TRIP EXTERNALLY Some external equipment has tripped the breaker An external trip is logged in the event log MB TRIP EXTERNALLY Some external equipment has tripped the breaker An external trip is logged in the event log IDLE RUN The "Idle run" function is active. test ##.#min The timer in the "Idle run"’ function is active COMPENSATION FREQ.Text in mains units MAINS U OK DEL ####s Mains voltage is OK after a mains failure The timer shown is the Mains OK delay MAINS f OK DEL ####s Mains frequency is OK after a mains failure The timer shown is the Mains OK delay Hz/V OK IN ###s The voltage and frequency on the genset is OK When the timer runs out it is allowed to operate the generator breaker COOLING DOWN ###s Cooling down period is activated COOLING DOWN Cooling down period is activated and infinite DEIF A/S The frequency is not at the nominal setting Cooling down timer is set to 0.#V ####s Battery test activated DELOAD Decreasing the load of the genset in order to open the breaker START DG(s) IN ###s The start genset setpoint is exceeded STOP DG(s) IN ###s The stop genset setpoint is exceeded START PREPARE The start prepare relay is activated START RELAY ON The start relay is activated START RELAY OFF The start relay is deactivated during the start sequence MAINS FAILURE Mains failure and mains failure timer expired MAINS FAILURE IN ###s Frequency or voltage measurement is outside the limits The timer shown is the Mains failure delay. STOP TIME ###s PROGRAMMING LANGUAGE This info is shown if the language file is downloaded from the PC utility software TOO SLOW 00<------------- Generator running too slow during synchronising -----------> 00 TOO FAST Generator running too fast during synchronising EXT. and the next step that will be reached after the timer has expired will be displayed DERATED TO #####kW Displays the ramp down setpoint PREPARING ETHERNET Preparing Ethernet connection PREPARING ENGINE IF Preparing engine IF PROGRAMMING MLOGIC Downloading M-Logic to the unit UNEXPECTED GB ON BB Another generator breaker is closed on to the busbar (due to a GB position failure) while no voltage is present on the busbar DEIF A/S There is no failure on the mains during this sequence This indicates that other breakers cannot close to the busbar because of position failure on one or more GBs. Page 134 of 199 . START ORDER A planned AMF sequence is activated QUICK SETUP ERROR Quick setup of the application failed MOUNT CAN CONNECTOR Connect the power management CAN line ADAPT IN PROGRESS The AGC is receiving the application that it has just been connected to SETUP IN PROGRESS The new AGC is being added to the existing application SETUP COMPLETED Successful update of the application in all AGC units REMOVE CAN CONNECTOR Remove the power management CAN lines RAMP TO #####kW The power ramp is ramping in steps.AGC-4 DRH 4189340686 UK Additional functions Status text GENSET STOPPING Condition Comment This info is shown when cooling down has finished EXT. SYNCHRONISING MB XX MB XX is synchronising. # Broadcast an application through the CAN line. An external trip is logged in the event log. # AGC receiving an application.32. SEMI OPERATION BTB unit in Semi. BTB TRIP EXTERNALLY Some external equipment has tripped the breaker. BTB XX is dividing two sections in an island application.AGC-4 DRH 4189340686 UK Additional functions 5. DEIF A/S Broadcasts one of the four applications from one unit to the rest of the AGCs in the power management system. BTB unit DIVIDING SECTION A BTB unit is dividing two sections in an island application. SYNCHRONISING BTB XX BTB XX is synchronising. An external trip is logged in the event log. All units BROADCASTING APPL. Mains unit UNIT STANDBY If redundant mains units are present this message is shown on the redundant unit. BTB XX DIVIDING SEC. READY AUTO OPERATION BTB unit in Auto and ready for breaker operation (no active BTB trip" alarm). SYNCHRONISING TB XX TB XX is synchronising. Page 135 of 199 . but not ready for breaker operation (active "BTB trip" alarm). RECEIVING APPL. this message is shown on the redundant unit. DELOADING BTB XX DG units are load sharing asymmetrically to deload BTB XX dividing two sections in an island application. BLOCKED FOR CLOSING Last open BTB in a ring bus. AUTO OPERATION BTB unit in Auto. TB TRIP EXTERNALLY Some external equipment has tripped the breaker. UNIT STANDBY If redundant mains units are present.2 Texts only related to power management (option G5) Status text Condition Comment DG unit BLACKOUT ENABLE This info is shown if a CAN failure is present in a power management application. Internal battery alarm If the internal battery is dismounted during operation.33 Internal battery 5. the backup will be erased. RECEIVE ERROR Application is not received correctly. RECEIVE COMPLETED Application received successfully. Comment 5. The following settings will be stored in the backup: Type Stored Identifiers X Counters X Views configuration X Inputs configuration X Outputs configuration X Translations M-Logic configuration X AOP-1 configuration X AOP-2 configuration X Application configuration X Parameters X Modbus configuration X Permissions X Logs If new firmware is flashed to the controller.1 Memory backup When changing the internal battery for the memory. DEIF A/S Page 136 of 199 . a failure will appear on the display. The backup is found in parameter 9230 Memory backup with the jump menu. BROADCAST ABORTED Broadcast terminated. all settings will be lost. DEIF recommends that a backup is made at least when the commissioning is tested and done. and after replacing the battery the settings can be restored. In this parameter you are able to backup or restore.Additional functions AGC-4 DRH 4189340686 UK Status text Condition BROADCAST COMPLETED Successful broadcast of an application. The memory backup feature gives the possibility to back up the controller settings. The controller will reboot after a backup has been restored.33. Entry window The entry shows the possible selections in the service menu. The timer will count downwards when the setpoint has been exceeded.AGC-4 DRH 4189340686 UK Additional functions 5. Use the service menu for easy troubleshooting in connection with the event log. IN (digital input) Shows the status of the digital inputs. DEIF A/S Page 137 of 199 . The service menu is entered using the "JUMP" push-button (9120 Service menu).34 Service menu The purpose of the service menu is to give information about the present operating condition of the genset. Available selections: Alarm Shows the alarm timer and the remaining time. The indicated remaining time is minimum remaining time. OUT (digital output) Shows the status of the digital outputs. Battery test log containing 52 loggings.35 Event log 5. 5. the log could look like this: The specific alarm or event is shown in the second line.40.x or later.36 or later. 5. it is only 150 event and 30 alarm logs. If older SW is used. and in USW 3. The logs can be viewed in the display or in the PC utility software.2 Display In the display it looks like this when the "LOG" push-button is pressed: Now it is possible to select one of the three logs. When the individual logs are full. Alarm log containing 500 loggings. each new event will overwrite the oldest event following the "first in .35.1 Logs The logging of data is divided in three different groups: ● ● ● Event log containing 500 loggings. The third line shows the time stamp.35. If the cursor is moved to "INFO". In the example above the fuel level alarm has occurred. There are 500 event and alarm logs in application 4. If the "Event" is selected. the actual value can be read when pressing "SEL": DEIF A/S Page 138 of 199 .first out" principle.AGC-4 DRH 4189340686 UK Additional functions MISC (miscellaneous) Shows miscellaneous messages. for instance if the unit is installed on an existing genset or a new circuit breaker has been installed. Automatically resets to OFF after the reset. The last event in the list will be displayed if the cursor is placed below "LAST" and "SEL" is pressed. 6103 GB operations Offset adjustment of the number of generator breaker operations. Counting when the running feedback is present. 6104 MB operations Offset adjustment of the number of mains breaker operations. 6102 Running time Offset adjustment of the total running thousand hours counter. The table shows the adjustable values and their function in menu 6100: Description Function Comment 6101 Running time Offset adjustment of the total running hours counter. The keyUP and keyDOWN push-buttons are used for navigating in the list. 5.36 Counters Counters for various values are included. 6106 Start attempts Offset adjustment of the number of start attempts. and some of these can be adjusted if necessary. Counting at each GB close command. Counting when the running feedback is present. The reset function cannot be left active. 6105 kWh reset Resets the kWh counter. Additional counters for "Running hours" and "Energy" can be read out from the PC utility software. DEIF A/S Page 139 of 199 . Counting at each MB close command.AGC-4 DRH 4189340686 UK Additional functions The first event in the list will be displayed if the cursor is placed below "FIRST" and "SEL" is pressed. Counting at each start attempt. and the number of decimals can be adjusted in menu 6853/6863. The two digital inputs can ONLY be configured for pulse inputs via M-logic. It is possible to determine the scale value to be pulse/ unit or unit/pulse.38 kWh/kVArh counters The controller has two transistor outputs. The quick setup menu is made to provide easy setup of a plant. fuel consumption or heat flow. Entering the quick setup menu 9180 via the DU-2 display gives the possibility to add or remove e. mains and MB without using the utility software. Term. The outputs are pulse outputs. Counter values can be read out in display. The two counters can be used for e.39 Quick setup Both the PC utility software and the quick setup menu can be used to set up a plant. DEIF A/S Page 140 of 199 .37 Pulse input counters Two configurable digital inputs can be used for counter input.Additional functions AGC-4 DRH 4189340686 UK 5. It is only possible to do the same basic setup as via the application configuration in the utility software. as shown in the example below. and the pulse length for each of the activations is 1 second. but the kVArh measurement is only available through the transistor output. Scaling of pulse input can be set in menu 6851/6861. number Output 20 kWh 21 kVArh 22 Common terminal The number of pulses depends on the actual adjusted setting of the nominal power: Generator power Value Number of pulses (kWh) Number of pulses (kVArh) PNOM <100 kW 1 pulse/kWh 1 pulse/kVArh PNOM 100-1000 kW 1 pulse/10 kWh 1 pulse/10 kVArh PNOM >1000 kW 1 pulse/100 kWh 1 pulse/100 kVArh The kWh measurement is shown in the display as well.g. 5.the maximum burden for the transistor outputs is 10 mA. 5. each representing a value for the power production.g. Be careful . the AGC will change the application configuration. Please refer to the option G5 manual. "Quick setup error". The settings in menu 9182-9185 are used for the new configuration. the existing application of the genset will not be changed. will appear. an info text. DEIF A/S Page 141 of 199 . If "Setup stand-alone" is activated while the genset is running. OFF: When the mode menu is set to "OFF". Setup standalone: When the mode menu is set to "Setup stand-alone". Setup plant: The setup plant mode is used in G5 applications.AGC-4 DRH 4189340686 UK Additional functions Menu 9180 Quick setup 9181: Mode. DEIF A/S Page 142 of 199 . The M-Logic is part of the PC utility software. 5. alarm conditions and running conditions. A great variety of inputs can be selected. can increase the functionality. it can only be configured in the PC utility software and not via the display. and as such. such as relay outputs.AGC-4 DRH 4189340686 UK Additional functions 5. such as digital inputs. A variety of the outputs can also be selected. if only very simple commands are needed. M-Logic is not a PLC but substitutes one. Please refer to the "Help" function in the PC utility software for a full description of this configuration tool. such as option M12 which offers additional digital inputs and outputs.40 Parameter ID This parameter can be used to identify which parameter file is used in the unit. the defined output will occur. The main purpose of M-Logic is to give the operator/designer more flexible possibilities of operating the generator control system. and at the activation of those inputs. M-Logic is a simple tool based on logic events.41 M-Logic The M-Logic functionality is included in the unit and is not an option-dependent function. however. selecting additional options. change of genset modes and change of running modes. One or more input conditions are defined. M-Logic is used to execute different commands at predefined conditions. 5.42 GSM communication The GSM modem communication is used to send a GSM message to up to five cellular telephones when an alarm appears on the display. the unit will send the required PIN code to the modem if this is necessary. PIN code configuration After each auxiliary supply power up.Additional functions AGC-4 DRH 4189340686 UK System single-line diagram External antenna Controller GSM Modem DEIF recommends using a MOXA OnCell G2150I. for SMS to cellular phone 1 None GSM 12345678901 Set phone no. The PIN code is adjusted in the PC utility software. for SMS to cellular phone 5 None For calling a foreign number type "+" and country code instead of "00". for SMS to cellular phone 4 None GSM 12345678901 Set phone no. as the application has been tested with these terminals. Name Function Set to GSM GSM PIN code Set PIN code for GSM modem None GSM 12345678901 Set phone no. Basic parameter settings Setting no. The phone number can only be dialed using the PC utility software. The SIM card used in the cellular telephone must support data transfer. for SMS to cellular phone 2 None GSM 12345678901 Set phone no. Wavecom WMOD2 or Westermo GDW-11 terminal. for SMS to cellular phone 3 None GSM 12345678901 Set phone no. Serial connection The serial connection to the GSM modem is done via the null-modem cable (option J3). 5. DEIF A/S Page 143 of 199 . for example dial +45 99999999 for a Danish number.43 USW communication It is possible to communicate with the unit via the PC utility software. The purpose is to be able to remote monitor and control the genset application. only half of the parameter file has been downloaded when the communication is interrupted. setting Max. The AGC has four sets of nominal values for the generator.Additional functions AGC-4 DRH 4189340686 UK It is possible to remote control the genset from the PC utility software if a modem is used. Digital input M-Logic is used when a digital input is needed for switching between the four sets of nominal settings. Take precautions that it is safe to remote operate the genset to avoid personal injury or death. the ASCII protocol type is used. If e.g. Setting 9021 Service port Setpoint Min. Select the required input among the input events. Application settings Please refer to the PC utility software help file. and the unit will allow for the slower modem communication. where switching between 50 and 60 Hz is required. 9020 Service port No. When set to 1. Safety If communication fails. Setup The Modbus protocol type can be changed from RTU to ASCII (9020 Service port). they can be adjusted in menus 6050 to 6060. This menu can only be reached using the JUMP push-button. If no busbar voltage transformer is present.44. Serial connection The serial connection to the GSM modem is via the null-modem cable (option J3). the PC utility software cannot communicate with the unit when it is connected directly to the PC and a modem is not used. and select the nominal settings in the outputs. the unit will use this actual data. and they are adjusted in menus 6000 to 6030 (Nominal settings 1 to 4). There are also two sets of nominal settings for the busbar. setting 0 (normal USW) 1 (modem USW) Factory setting 0 (normal USW) If setting 9020 is set to 1.44 Nominal settings 5.1 How to change the nominal settings The nominal settings can be changed to match different voltages and frequencies. The possibility to switch between the four sets of nominal setpoints is typically used on rental gensets. Activation The switching between the nominal setpoints can be done in three ways. DEIF A/S Page 144 of 199 . Because of the RS232 communication the GSM function is only available with option H9. AOP or menu 6006. digital input.2. 5. the unit will operate according to the received data. the primary and secondary side values are set to generator nominal value. parameter settings 1 Button08 or Not used or Not used Set nom. Example: Event A Event B Event C Output Button07 or Not used or Not used Set nom. DEIF A/S Page 145 of 199 . parameter settings 2 See the "Help" file in the PC utility software for details. and select the nominal settings in the outputs. parameter settings 2 See the "Help" file in the PC utility software for details. Menu settings In menu 6006 the switching is made between settings 1 to 4 simply by choosing the desired nominal setting. 23 or Not used or Not used Set nom. meaning: nominal setting 1 (6001…6005) will follow GOV/AVR offset in 2550. Select the required AOP push-button among the input events. input no. AOP M-Logic is used when the AOP is used for switching between the four sets of nominal settings.AGC-4 DRH 4189340686 UK Additional functions Example: Event A Event B Event C Output Dig. parameter settings 1 Not Dig. input no. Four nominal settings of GOV/AVR offsets In menu 6006 the selection of nominal setting is made. 23 or Not used or Not used Set nom. The nominal setting of GOV/AVR offset will follow the setting in 6006. The applications where a step-up transformer is needed.0 V-2500.0 kW 10.1 Step-up transformer In certain cases.00 kV 10 kV-160 kV 1.00 kV 1. Voltage measurement displayed DEIF A/S Page 146 of 199 .0 V-2500.0-900.46.00 kV-75.0 kV-160. Synchronising with or without phase angle compensation 2. To be able to handle applications above 25000 V and below 100 V.1 Scaling Default voltage scaling is set to range 100 V-25000 V (parameter 9030).0-900.0 kV-160. The functions available in this application are: 1. settings 1 to 4 (voltage) will change according to parameter 9030 Transformer ratio settings parameter 6041.45 Scaling 5. is supported by the ML-2. This may be to adapt to the closest grid voltage or to step up the voltage to minimise the losses in cables and also to bring down the cable size.0 V 100 V-25000 V 10-20000 kW 100 V-25000 V 100 V-25000 V 1 kV-75 kV 0.00 kV-75.0 kV 10.45. Changing the voltage scaling will also influence the nominal power scaling: Scaling parameter 9030 Nom.00 MW 1. it is necessary to adjust the input range so it matches the actual value of the primary voltage transformer.0 V 10.10-90. 5. the use of a generator with step-up transformer (called a block) is required.0 MW 10.Additional functions AGC-4 DRH 4189340686 UK 5. 6051 and 6053 10 V-2500 V 1. This makes it possible for the unit to support a wide range of voltage and power values.0 kV All nominal values and the primary VT settings must be corrected after the scaling has been changed in parameter 9030. It is required to have master level access to change this parameter. settings 1 to 4 (power) will change according to parameter 9030 Nom.46 Step-up and step-down transformer 5. The number is the vector group number. the breaker could also be placed on the LV side. defining the phase angle shift between HV and LV side of the stepup transformer. When voltage measurement transformers are used. but in many cases there is. these have to be included in the total phase angle compensation. The phase angle shift is in Europe described using the vector group description. but when attempting to synchronise. this could also be called clock notation or phase shift. Busbar protections A diagram of a block is shown below Generator/transformer block: Typically the synchronising breaker is on the high voltage (HV) side. The nominal voltage of the busbar is 10000 V.46. The second letter is a lower case d. In some applications. DEIF A/S Page 147 of 199 . Now. the voltage of the busbar is 10500 V. The phase angle compensation would not be an issue if there was no phase angle shift across the step-up transformer. the device uses the ratio of the nominal voltages for the generator and the busbar.AGC-4 DRH 4189340686 UK Additional functions 3. Example: A 10000 V/400 V step-up transformer is installed after a generator with the nominal voltage of 400 V. The number is an expression of the LV side lag compared to the HV side voltage. The measuring points are shown as black dots in the figures above and below. as long as the breaker and the step-up transformer is both placed between the measuring points for the ML-2. Generator protections 4.2 Vector group for step-up transformer Vector group definition The vector group is defined by 2 letters and a number: The first letter is an upper case D or Y defining if the HV side windings are in Delta or Wye configuration. wye or zigzag configuration. Instead of vector group. and there is no breaker (or only a manually operated one) on the low voltage (LV) side. The number is an expression of the lag angle divided by 30 degrees. y or z defining if the LV side windings are in delta. But this does not influence on the setting in the ML-2. to calculate a setpoint for the AVR and the voltage synchronising window (dUMAX). When a ML-2 is used for synchronising. the AVR setpoint will be changed to: UBUS-MEASURED * UGEN-NOM/UBUS-NOM = 10500 * 400/10000 = 420 V 5. The generator is running 400 V before synchronising starts. LV side: Wye. Yy0 example: HV side LV (generator) side 1L1 2L1 1L3 1L2 2L3 2L2 1L1 to 2L1 phase angle is 0 degrees Phase compensation setting: Parameter 9141 DEIF A/S Function BB (mains)/generator angle compensation Setting 0 degrees Page 148 of 199 .AGC-4 DRH 4189340686 UK Additional functions Example: Dy11 = HV side: Delta. Typical vector groups Vector group Clock notation Phase shift LV lag degrees compared to HV 0 0 0° 0° 1 1 -30° 30° 2 2 -60° 60° 4 4 -120° 120° 5 5 -150° 150° 6 6 -180°/180° 180° 7 7 150° 210° 8 8 120° 240° 10 10 60° 300° 11 11 30° 330° Vector group 0 The phase shift is 0 degrees. vector group 11: Phase shift = 11x (–30) = -330 degrees. Phase compensation setting: Parameter 9141 DEIF A/S Function BB (mains)/generator angle compensation Setting 30 degrees Page 149 of 199 . Vector group 1 The phase shift is -30 degrees.AGC-4 DRH 4189340686 UK Additional functions Connections: LV 2L1 Generator HV GB Busbar 2L2 1L1 1L2 2L3 1L3 AGC 3/ AGC 4/ PPU/ GPU/ PPM/ GPC 79 81 83 85 87 89 AGC 200 61 63 65 68 70 72 The connection that is shown in the diagram should always be used when an ML-2 is used for a genset. Dy1 example: HV side LV (generator) side 2L1 1L1 2L3 1L3 1L2 2L2 1L1 to 2L1 phase angle is -30 degrees. Vector group 11 The phase angle shift is 11 x (-30) = -330/+30 degrees.AGC-4 DRH 4189340686 UK Additional functions Connections: LV 2L1 Generator HV GB Busbar 2L2 1L1 1L2 2L3 1L3 AGC 3/ AGC 4/ PPU/ GPU/ PPM/ GPC 79 81 83 85 87 89 AGC 200 61 63 65 68 70 72 The connection that is shown in the diagram should always be used when a ML-2 is used for a genset. Dy11 example: HV side LV (generator) side 2L1 1L1 2L2 1L3 1L2 2L3 1L1 to 2L1 phase angle is -333/+30 degrees. Phase compensation setting: Parameter 9141 DEIF A/S Function BB (mains)/generator angle compensation Setting -30 degrees Page 150 of 199 . Vector group 6 The phase angle shift is 6 x 30 = 180 degrees. Phase compensation setting: Parameter 9141 DEIF A/S Function BB (mains)/generator angle compensation Setting 180 degrees Page 151 of 199 . Yy6 example: HV side LV (generator) side 1L1 1L3 2L2 1L2 2L3 2L1 1L1 to 2L1 phase angle is -180/+180 degrees.AGC-4 DRH 4189340686 UK Additional functions Connections: LV 2L1 Generator GB HV Busbar 2L2 1L1 1L2 2L3 1L3 AGC 3/ AGC 4/ PPU/ GPU/ PPM/ GPC 79 81 83 85 87 89 AGC 200 61 63 65 68 70 72 The connection that is shown in the diagram should always be used when an ML-2 is used for a genset. DEIF A/S Page 152 of 199 . the name vector group will be used. Please select 179 degrees in parameter 9141 when vector group 6 is used. Comparison table between different terminologies Vector group Clock notation Phase shift LV lag degrees compared to HV LV side lagging LV side leading 0 0 0° 0° 0° 1 1 -30° 30° 30° 2 2 -60° 60° 60° 4 4 -120° 120° 120° 5 5 -150° 150° 150° 6 6 -180°/180° 180° 180° 7 7 150° 210° 150° 8 8 120° 240° 120° 10 10 60° 300° 60° 11 11 30° 330° 30° 180° In the following.AGC-4 DRH 4189340686 UK Additional functions Connections: LV 2L1 Generator HV GB Busbar 1L1 2L2 1L2 2L3 1L3 AGC 3/ AGC 4/ PPU/ GPU/ PPM/ GPC 79 81 83 85 87 89 AGC 200 61 63 65 68 70 72 The connection that is shown in the diagram should always be used when an ML-2 is used for a genset. Before closing the breaker. Yz1 30° 2 Dd2. Dy7. DEIF A/S Page 153 of 199 . Dz8 -120° 10 Dd10.AGC-4 DRH 4189340686 UK Additional functions Table to read parameter 9141 compared to a step-up transformer Vector group Step-up transformer types Parameter 9141 0 Yy0. Dy11. Dz6 180° 7 Yd7. Dy1. Dz2 60° 4 Dd4. Yz7 -150° 8 Dd8. Yz11 -30° Note that DEIF does not take responsibility that the compensation is correct. Dy5. DEIF recommends that customers always measure the synchronisation themselves. Dd0. Dz0 0° 1 Yd1. the setting in parameter 9141 will be wrong! Note that the setting shown in the table above does not include any phase angle twist made by measurement transformers! The settings shown in the table above are not correct if a step-down transformer is used. Yz5 150° 6 Yy6. These settings are shown later. Dz10 -60° 11 Yd11. Note that if voltage measurement is connected incorrectly. Dz4 120° 5 Yd5. Dd6. The ML-2 can handle up to 690 V. Because the generator’s nominal voltage is 400 V. with nominal settings of 10/0. The setup of all these parameters can be done from the utility software.1 kV Dz4 10/0.4 kV.1 kV. Due to the fact that the step-up transformer is a Dz4. The setup of all these parameters will be explained by an example: Busbar 10 kV Measurement transformer 10/0.46. the current transformers have a nominal current of 300/5 A. The generator has a nominal voltage of 0. and no phase angle twist! The nominal voltage of the busbar (BB) is 10 kV. there is no need for a measurement transformer on the LV side in this example. and a nominal power of 140 kW. nominal current of 250 A. But it is still required to set up current transformers on the LV side. it will be necessary with measurement transformers.Additional functions AGC-4 DRH 4189340686 UK 5.3 Setup of step-up transformer and measurement transformer If the HV side of the transformer is transforming the voltage up to a voltage level higher than 690V AC. In this example. These settings can be programmed by the display or by the utility software. there will be a phase angle twist of -120°. The measurement transformer has a nominal voltage of 10/0. These settings have to be put into the parameters shown in the table below: DEIF A/S Page 154 of 199 .4 kV.4 kV Controller 400V AC direct input Current transformer 300/5 A G UGEN = 400 V IGEN = 250 A The transformer is a Dz4 step-up transformer. Yz7 150° 8 Dd8. so the load can handle the voltage level. DEIF A/S Page 155 of 199 . The ML-2 controller is able to synchronise the busbar with the mains. Dy1.4 Vector group for step-down transformer In some applications. If the voltage level in the application is higher or lower. these settings will have to be set in parameter 9141 to compensate the phase angle twist.AGC-4 DRH 4189340686 UK Additional functions Parameter Comment Setting 6002 Generator nominal power 140 6003 Generator nominal current 250 6004 Generator nominal voltage 400 6041 LV measurement transformer primary side. Dz0 0° 1 Yd1. the settings shown in the table above should also be used. it is required to use measurement transformers that transform the voltage into a number between 100 and 690 V. 5. Dd6. Dy7. Dz4 -120° 5 Yd5. Yz1 -30° 2 Dd2. If a step-down transformer is used. Yz5 -150° 6 Yy6. This could be to transform a grid voltage down. Dy11. Dd0. The transformer has to be between the measuring points for ML-2. Dz10 60° 11 Yd11. even if there is a step-down transformer with a phase angle twist. Dz6 180° 7 Yd7. Dz8 120° 10 Dd10. Dz2 -60° 4 Dd4. Vector group Step-up transformer types Parameter 9141 0 Yy0. Dy5. there could also be placed a step-down transformer.46. (There is none here) 400 6043 Current transformer primary side 300 6044 Current transformer secondary side 5 6051 HV (BB) measurement transformer primary side 10000 6052 HV (BB) measurement transformer secondary side 100 6053 Nominal HV setting of step-up transformer 10000 9141 Phase angle compensation 120° Please note that the ML-2 controller can directly handle voltage levels between 100-690 V. (There is none here) 400 6042 LV measurement transformer secondary side. Yz11 30° If a step-down transformer is mounted with an ML-2 genset unit. The correct connection is shown below. 1L1 HV Mains LV MB Load TB Optional Busbar 2L1 1L2 2L2 1L3 2L3 AGC 3/ AGC 4/ PPU/ GPU/ PPM/ GPC 79 81 83 85 87 89 AGC 200 61 63 65 68 70 72 The connection that is shown in the picture should always be used when an ML-2 is used for a mains breaker.AGC-4 DRH 4189340686 UK Additional functions If a step-down transformer and an ML-2 for the mains breaker are mounted. please note how the measurements are mounted on the ML-2. DEIF A/S Page 156 of 199 . and therefore there is no need for a measurement transformer. with nominal settings of 690/400 V. The nominal voltage of the busbar (BB) is 400 V. In this example. the current transformers have a nominal current of 500/1 A. In this example.Additional functions AGC-4 DRH 4189340686 UK 5. There is no measurement transformer in this application because the ML-2 is able to handle the voltage levels directly. The generator has a nominal voltage of 690 V. DEIF A/S Page 157 of 199 . It is still required to set up current transformers. The setup of all these parameters will be explained by an example: Busbar 400 kV 400 V Dy1 690/400 kV Controller 690V AC direct input Current transformer 500/1 A G UGEN = 400 V IGEN = 500 A The transformer is a Dy1step-down transformer. The step-down transformer can have a phase angle twist. which need to be compensated for.46.5 Setup of step-down transformer and measurement transformer If the HV side of the transformer has a voltage level higher than 690V AC. the HV side is 690 V. it will be necessary with measurement transformers. nominal current of 500 A and a nominal power of 480 kW. The setup of all the parameters can be done from the utility software. The measuring principle is using sliding windows. (There is none here) 690 6043 Current transformer primary side 500 6044 Current transformer secondary side 1 6051 LV (BB) measurement transformer primary side (There is none here) 400 6052 LV (BB) measurement transformer secondary side (There is none here) 400 6053 Nominal LV setting of step-up transformer 400 9141 Phase angle compensation -30° 5.AGC-4 DRH 4189340686 UK Additional functions Due to the fact that the step-down transformer is a Dy1.1 I thermal demand This read-out is used to simulate a bimetallic system which is specifically suited for indication of thermal loads in conjunction with cables. etc. These settings can be programmed by the display or by the utility software. there will be a phase angle twist of +30°. transformers. (There is none here) 690 6042 HV measurement transformer secondary side.47 Demand of peak currents 5. These settings have to be put into the parameters shown in the table below: Parameter Comment Setting 6002 Generator nominal power 480 6003 Generator nominal current 500 6004 Generator nominal voltage 690 6041 HV measurement transformer primary side. DEIF A/S Page 158 of 199 .47. or radiator fans for switching on and off cooling fans for air coolers.AGC-4 DRH 4189340686 UK Additional functions Example of sliding window based on FIFO register. it will be saved in the register. When a new max.2 I max. 5. the value is saved in the display. and every 6 seconds an average peak value is calculated. DEIF A/S Page 159 of 199 .48 Fan logic The AGC is able to control four different fans. it will be logged in the event log. The value can be reset in menu 6843.48. If the value is reset. If the peak value is higher than the present MD.) can be set from 0 to 20 minutes in menu 6841.47. Display readout is updated with an interval of 6 seconds. and based on this temperature it switches on and off relays that must be used for engaging the fan(s) itself. The thermal period (Time C. Priority rearranging depending on running hours of the fans 2. it will be logged in the event log. be air supply fans for supplying air to a genset in a closed enclosure. demand Read-out is showing the Imax. The two reset functions will also be available as commands through M-Logic. The functionality behind the temperature-dependent start/stop is that the AGC measures a temperature. 5. The thermal demand period will provide an exponential thermal characteristic. There are two features in the fan control of the AGC. 5. Temperature-dependent start and stop A priority routine ensures that the running hours of the available fans are evened out and the priority shifts between them.1 Fan parameters Each fan has a group of parameters that defines their scheme of operation. It is recommended to use the PC utility SW for the setup. peak value.g. e. The display value can be reset in menu 6842. This could e.g. cooling water temperature. The fan control function is active as long as running feedback is detected. 1. The measured peak currents are sampled once every second. The setup of the fan control is done in the menus 6561-6620 and by using M-Logic in the PC utility SW. peak current is detected. If the value is reset. because then it is possible to see all parameters. DEIF A/S Page 160 of 199 .AGC-4 DRH 4189340686 UK Additional functions Parameters: M-Logic: 5.X) The multi-inputs can be configured to e.X) ● Analogue inputs (M15. and this input can be selected between these inputs: ● Three multi-inputs in slot #7 are available ● EIC measurement (engine interface communication) ● External analogue input 1-8 (H8. Fan temperature input is set up in parameter 6561.X) ● Multi-inputs (M16. this is defined as the highest measured temperature of either cooling water or oil temperatures. a Pt100 sensor that measures an engine.or ambient temperature. If EIC is selected.g.48.2 Input for fan control The fan control requires a temperature input in order to start and stop the fans based on a temperature measurement. 3 Fan start/stop The start and stop settings of the fan(s) are set up in parameters 6563 to 6574. The following start/stop curve will be generated if a bow setting is used: 5. DEIF A/S Page 161 of 199 .) ensures that there is a range between the start and stop.AGC-4 DRH 4189340686 UK Additional functions Based on the measurement of the selected input.48. With the settings in the table below. A hysteresis (abbreviation: hyst.4 Fan output At parameter 6581 to 6584. the fan(s) is (are) started and stopped. the output relays for fans A to D are selected. 5. The purpose of these relays is to issue a signal to the fan starter cabinet.48. the illustrative curve can be observed. The relay must be energised for the fan to run. In M-Logic. to make sure that these are running. it is possible to add a start delay between each fan start. The running feedback has to be programmed through M-Logic and with a digital input to detect a running feedback. With this feedback. This delay is adjusted in the menu 6586.48. 5.5 Fan start delay If two or more fans are requested to be started at the same time.6 Fan running feedback To prevent the engine from overheating.48. the functions Fan A/B/C/D running is found under Output and Command as shown below. DEIF A/S Page 162 of 199 .AGC-4 DRH 4189340686 UK Additional functions 5. so all fans will not contribute with a start current at the same time. The reason for this is to limit the peak start current. the ML-2 can detect if there is a fan failure and set an alarm. the ML-2 can use a running feedback signal from the fans. M-Logic setup: If the fan unit is raising a signal that is led to a digital input on the AGC when it is running.48. The fan failure alarm appears if the running feedback from the fan does not appear. because the running hours of the fans are detected and are used for the rearranging. 5.7 Fan failure It is possible to activate an alarm if the fan does not start. the fan failure alarms are set up for fans A to D. In parameters 6590 to 6620.8 Fan priority (running hours) The priority of the fans A to D rotates automatically from 1st to 4th priority. then the following M-Logic must be programmed: DEIF A/S Page 163 of 199 . This is done automatically.48.AGC-4 DRH 4189340686 UK Additional functions 5. AGC-4 DRH 4189340686 UK Additional functions When it is not possible to get a running feedback from the fan unit. R57 is the relay for FAN A.g. DEIF A/S Page 164 of 199 . the following M-Logic must be programmed: The running hour can be reset by entering parameter 6585 and then selecting the desired fan hours to be reset. If e. It is not possible to add an offset to the run hour counter. Only reset is possible. the internal relay of the AGC must be used to indicate that the fan is running. In parameter 6890 a setpoint is available. The function in the AGC is to activate a relay under defined conditions. the priority update rate (hours between priority rearrange) is selected: If the fan priority update is set to 0 hours. Any freely configurable relay is available for this feature. which can be set between 1 and 999 hours to define when the relay should close. the order of priority will be fixed at: Fan A. The running hours counter in the AGC is only used if the EIC counter is not available.AGC-4 DRH 4189340686 UK Additional functions 5. fan C and fan D. meaning that the relay will remain closed until the setpoint is reached. Furthermore.9 Fan priority update In parameter 6562. The renewal function will read the engine hours from the engine interface communication (EIC).g. DEIF A/S Page 165 of 199 . and it is possible to choose which relay should be used.49 Oil renewal function The purpose of the oil renewal function is to give the possibility to exchange a small portion of the lubricating oil of the engine with fresh or new oil.48. fan B. The time interval between the oil changes is assumed to be 1000 hours of operation. 5. this parameter can be inversed. This means that the quality of the oil is kept at a satisfactory level without significant degrading of the oil (e. Then the relay must be used for the oil renewal system (not part of the DEIF scope of supply) where lubricating oil is removed and added to the engine. contamination and TBN value) in the entire period between the oil changes. and then the hours counter starts from 0 hours again. If the differential value drops below the setpoint value before the timer runs out.50 Differential measurement 5.50. If the differential function is for example air filter check. it is possible to compare two analogue inputs and trigger on the difference between the two values. the relay will close at 750 hours and remain closed until 1000 hours is reached.AGC-4 DRH 4189340686 UK Additional functions When the running hours counter has reached 1000 hours. DEIF A/S Page 166 of 199 . 5. then the timer will be stopped and reset. If for example the setpoint has been set to 750 hours and inverse is not enabled. the timer will be activated if the setpoint between PA (analogue A) and PB (analogue B) is exceeded. the AGC will reset the hours just for the oil renewal function.1 Differential measurement With the differential measurement function. only AGC-4) ● Multi-input (M16. Each alarm can be configured in two alarm levels for each differential measurement between analogue input A and input B. avaible inputs are: ● Multi-inputs (slot #7) ● EIC measurements ● External inputs (option H8) ● Analogue input (M15. only AGC-4) The relevant alarm setpoint is chosen in parameters 4610-4660 and 4680-4730.X. As an example. Differential measurements between two sensors can be configured in menus 4600-4606 and 4670-4676. for differential measurement 1. the figure below shows the two parameters for input selection for differential measurement 1. Inputs are selected from the input list as shown below.X.Additional functions AGC-4 DRH 4189340686 UK Before filter PB Differential limit Differential Alarm ∆ P=PA-PB PA After filter Timer value Six different differential measurements between two analogue input values can be configured. The figure below shows the two parameters to configure alarm level 1 and 2. DEIF A/S Page 167 of 199 . AGC-4 DRH 4189340686 UK DEIF A/S Additional functions Page 168 of 199 AGC-4 DRH 4189340686 UK Protections 6. Protections 6.1 General 6.1.1 General The protections are all of the definite time type, i.e. a setpoint and time is selected. If the function is e.g. overvoltage, the timer will be activated if the setpoint is exceeded. If the voltage value falls below the setpoint value before the timer runs out, then the timer will be stopped and reset. Timer setting Measured value Setpoint Time Timer Timer start reset Timer start Alarm When the timer runs out, the output is activated. The total delay will be the delay setting + the reaction time. When parameterising the DEIF controller, the measuring class of the controller and an adequate "safety" margin has to be taken into consideration. An example: A power generation system must not reconnect to a network when the voltage is 85% of Un +/-0% < U < 110% +/-0%. In order to ensure reconnection within this interval, a control unit’s tolerance/accuracy (Class 1 of the measuring range) has to be taken into consideration. It is recommended to set a control unit’s setting range 1-2% higher/lower than the actual setpoint if the tolerance of the interval is +/-0% to ensure that the power system does not reconnect outside the interval. Phase-neutral voltage trip If the voltage alarms are to work based on phase-neutral measurements, please adjust menus 1200 and 1340 accordingly. Depending on the selections, either phase-phase voltages or phase-neutral voltages will be used for the alarm monitoring. DEIF A/S Page 169 of 199 AGC-4 DRH 4189340686 UK Protections Phase-neutral UL3-L1 U L3 Phase-phase UL1-L2 UL1-N UL3-L1 UL -N UL -N 2-N UL1-L2 UL1-N U L3 UL2-L3 2-N UL2-L3 As indicated in the vector diagram, there is a difference in voltage values at an error situation for the phaseneutral voltage and the phase-phase voltage. The table shows the actual measurements at a 10% undervoltage situation in a 400/230 volt system. Phase-neutral Phase-phase Nominal voltage 400/230 400/230 Voltage, 10% error 380/207 360/185 The alarm will occur at two different voltage levels, even though the alarm setpoint is 10% in both cases. Example The below 400V AC system shows that the phase-neutral voltage must change 20%, when the phase-phase voltage changes 40 volts (10%). Example: UNOM = 400/230V AC Error situation: UL1L2 = 360V AC UL3L1 = 360V AC 20% UL3-L1 UL1-L2 UL1-N UL1-N = 185V AC ΔUPH-N = 20% U L3 UL -N 2-N UL2-L3 Phase-neutral or phase-phase: both the generator protections and the busbar/mains protections use the selected voltage. DEIF A/S Page 170 of 199 AGC-4 DRH 4189340686 UK Protections 6. The protection will be activated based on the overcurrent setpoint as a function of the measured voltage on the generator voltage terminals.0 sec. The result can be expressed as a curve function where the voltage setpoints are fixed values and the current setpoints can be adjusted (menu 1100). DEIF A/S Page 171 of 199 .g.2 Voltage-dependent (restraint) overcurrent This protection is used when the generator must be tripped due to a fault situation that creates a reduced generator voltage. the overcurrent setpoint will also drop. a voltage collapse.60. Voltage and current % values refer to the nominal settings. the generator can only produce part of its usual rating. During the voltage collapse. A short-circuit current during a voltage collapse can even be lower than the nominal current rating. 200 190 % Nominal Current 180 170 160 150 140 130 120 110 100 50 60 70 80 90 100 % Nominal Voltage The voltage values for the six points on the curve are fixed. This means that if the voltage drops.1. the current values can be adjusted in the range 50-200%. e. Timer value can be adjusted in the range 0. if option D1 is selected. PID controller 7. also three controllers for the AVR control. 7. Controller GOV AVR Comment Frequency X Controls the frequency Power X Controls the power P load sharing X Controls the active power load sharing Voltage (option D1) X Controls the voltage VAr (option D1) X Controls the power factor X Controls the reactive power load sharing Q load sharing (option D1) DEIF A/S X Page 172 of 199 . The PID controller is able to eliminate the regulation deviation and can easily be tuned in.AGC-4 DRH 4189340686 UK PID controller 7. See "General Guidelines for Commissioning".2 Controllers There are three controllers for the governor control and.1 Description of PID controller The unit controller is a PID controller. an integral regulator and a differential regulator. It consists of a proportional regulator. Set point Σ - P-part (Kp) I-part (Ti) + Σ + Output + D-part (Td) As illustrated in the above drawing and equation. 7. DEIF A/S Page 173 of 199 .PID controller AGC-4 DRH 4189340686 UK The table below indicates when each of the controllers is active. I and D) gives an output which is summarised to the total controller output. This means that the controllers can be tuned in when the shown running situations are present.3 Principle drawing The drawing below shows the basic principle of the PID controller. each regulator (P. Governor Frequency Power AVR (option-dependent) P LS Voltage X VAr Schematic Q LS X GB MB GB MB GB MB G X X G X X G X X G G GB GB Load sharing mode is option-dependent (option G3/G5). The size of the change depends on the gain Kp.5 % 20 0 0 10 20 30 40 50 60 Kp 7. The integral action time for the integral part. kP 1% regulation deviation kP mA 5 DEIF A/S 10 15 20 25 Page 174 of 199 .AGC-4 DRH 4189340686 UK PID controller The adjustable settings for the PID controllers in the AGC unit are: Kp: Ti: Td: The gain for the proportional part. The diagram shows how the output of the P regulator depends on the Kp setting.4 Proportional regulator When the regulation deviation occurs. the proportional part will cause an immediate change of the output. P regulator 2% 4% 100 Output (%) 80 1% 60 40 0. a small regulation deviation will cause a rather big output change.1 Speed range Because of the characteristic above it is recommended to use the full range of the output to avoid an unstable regulation. The differential action time for the differential part. The function of each part is described in the following.4. 7. If the output range used is too small. The change of the output at a given Kp setting will be doubled if the regulation deviation doubles. This is shown in the drawing below. 4. speed range Output change Output change in % of max.AGC-4 DRH 4189340686 UK PID controller A 1% regulation deviation occurs.5 mA.5 mA = 5 mA. The integral action time is then measured when the output reaches 2 x 2.4. Dynamic regulation band Kp=50 100 Kp=10 75 50 25 Kp=1 Frequency [Hz] 44 45 46 47 48 0 49 50 -25 51 52 53 54 55 56 -50 -75 -100 Output [%] 7. The dynamic area gets smaller if the Kp is adjusted to a higher value. The table shows that the output of the AGC changes relatively much if the maximum speed range is low. With the Kp setting adjusted. Max.2 Dynamic regulation area The drawing below shows the dynamic regulation area at given values of Kp. In the drawing below the proportional regulator causes an immediate change of 2. The integral action time Ti is defined as the time the integral regulator uses to replicate the momentary change of the output caused by the proportional regulator. the deviation causes the output to change 5 mA.3 Integral regulator The main function of the integral regulator is to eliminate offset. DEIF A/S Page 175 of 199 . speed range 10 mA 5 mA 5/10*100% 50 20 mA 5 mA 5/20*100% 25 7. thus making it possible to set a higher gain and a lower integral action time Ti.g. the Kp and the Td setting. the differential regulator is not needed. Ti 6 Ti = 10 s 5 Ti = 20 s 4 mA 3 2 1 0 0 5 10 15 20 25 30 35 sec As shown in the drawing. This will make the regulation hunt similar to a too high proportional action factor. This will make the overall regulation eliminate deviations much faster. This means that a lower setting of the integral action time Ti results in a faster regulation. the output reaches 5 mA twice as fast at a Ti setting of 10 s than with a setting of 20 s. the I-regulator is switched OFF. In most cases. in case of very precise regulation situations.PID controller AGC-4 DRH 4189340686 UK Integral action time.4 Differential regulator The main purpose of the differential regulator (D-regulator) is to stabilise the regulation. DEIF A/S Page 176 of 199 . must not be too low. If the Ti is adjusted to 0 s. The integrating function of the I-regulator is increased if the integral action time is decreased. Kp. static synchronisation.4. The integral action time. 7. however. e. it can be very useful. The output from the D-regulator can be explained with the equation: D = Regulator output Kp = Gain de/dt = Slope of the deviation (how fast does the deviation occur) This means that the D-regulator output depends on the slope of the deviation. Ti. 5 s and the deviation is according to Deviation 2. Td=0. When commissioning. This will make the regulation hunt similar to a too high proportional action factor. please keep in mind that the Kp setting has influence on the D-regulator output. Kp. the D-regulator is switched OFF. The example shows that the bigger deviation and the higher Td setting. Since the D-regulator is responding to the slope of the deviation. Td.5 s: D-output 2. Td=0.5 Load share controller The load share controller is used in whenever load sharing mode is activated. Adjustment of the load share controller is done in menu 2540 (analogue control) or 2590 (relay control).5 (2.5 2 2.5 s D-output 1.5 s: D-output 2. the bigger output from the D-regulator.PID controller AGC-4 DRH 4189340686 UK Example: In the following example it is assumed that Kp = 1. Output from the D-regulator when Td=1 s and the deviation is according to Deviation 2.5 Time [s] Deviation 1: Deviation 2: D-output 1. A deviation with a slope of 2. Td=0.5 s and the deviation is according to Deviation 1.5 1 1. If the Td is adjusted to 0 s. must not be too high. Output from the D-regulator when Td=0.5 times bigger than deviation 1). Output from the D-regulator when Td=0.5 s 0 0 0. DEIF A/S Page 177 of 199 . Td=1s 2 Deviation 1 1 D-output 2. D-regulator 8 Output/deviation 7 6 Deviation 2 5 4 3 D-output 2. The load share controller is a PID controller similar to the other controllers in the system and it takes care of frequency control as well as power control. Td=1 s: A deviation with a slope of 1. it also means that when there is no change the D-output will be zero. The differential action time. 7. Td=0. then hunting could be experienced. After a successful synchronisation the frequency controller is deactivated and the relevant controller is activated.1 Hz gives synchronism each 10 seconds.AGC-4 DRH 4189340686 UK PID controller The primary purpose of the PID controller is always frequency control because frequency is variable in a load sharing system as well as the power on the individual generator. the controller "2050 fSYNC controller" is used during the entire synchronising sequence.6 Synchronising controller The synchronising controller is used in the AGC whenever synchronising is activated. 7. So if a firm load sharing is needed. The regulation deviation from the power regulator can therefore have great or less influence on the PID controller. DEIF A/S Page 178 of 199 . The adjustments are made in the menu 2050. Since the load sharing system requires power regulation as well. but with this system on a steady engine the time between synchronism is reduced. For this purpose a so-called weight factor is used (PWEIGHT). Static synchronising When synchronising is started. the PID controller can be affected by the power regulator. the synchronising controller "2050 fSYNC controller" is activated and the generator frequency is controlled towards the busbar/mains frequency. An expected disadvantage of a high weight factor is that when a frequency deviation and a power deviation exist. the generator will be sped up between the points of synchronisation (12 o’clock to 12 o’clock) of the two systems. This could e. be the load sharing controller. An adjustment of 100% means that the power regulation is not limited by the weight factor. Dynamic synchronising When dynamic synchronising is used. One of the advantages of dynamic synchronising is that it is relatively fast. The difference between adjusting the weight value to a high or low value is the speed at which the power regulation deviation is eliminated. the weight factor must be adjusted to a higher value than if an easy load sharing is required.g. An adjustment of 0% means that the power control is switched off. The solution to this is to decrease either the weight factor or the parameters of the frequency regulator. Normally a slip frequency of 0. The phase controller takes over when the frequency deviation is so small that the phase angle can be controlled. Any adjustment in between is possible. In order to improve the speed of the synchronising further. The phase controller is adjusted in the menu 2070 ("2070 phase controller"). but the increase relay will be constantly activated because of the size of the regulation deviation. 3 Dead band area No reg. # Range Description Comment 1 Static range Fix up signal The regulation is active. In this particular range no regulation takes place. DEIF A/S Page 179 of 199 . and the decrease relay will be pulsing in order to eliminate the regulation deviation.7 Relay control When the relay outputs are used for control purposes. 4 Dynamic range Down pulse The regulation is active. but the decrease relay will be constantly activated because of the size of the regulation deviation.AGC-4 DRH 4189340686 UK PID controller 7. The regulation accepts a predefined dead band area in order to increase the lifetime of the relays. and the increase relay will be pulsing in order to eliminate the regulation deviation. 55Hz Down pulse Hz Fix down signal The regulation with relays can be split up into five steps. 2 Dynamic range Up pulse The regulation is active. the regulation works like this: Regulator output 45Hz Fix up signal 50Hz Up pulse No reg. 5 Static range Fix down signal The regulation is active. Relay ON PERIOD ON PERIOD ON PERIOD ON PERIOD ON PERIOD ON t [sec] HIGH DEIF A/S <DEVIATION> LOW Page 180 of 199 . If the deviation is small. They are shown in the drawing below. The relays will never be activated for a shorter time than the ON time. As it is indicated in the drawing below. It is possible to adjust the "period" time and the "ON time".7. Adjustment Description Comment Period time Maximum relay time The time between the beginnings of two subsequent relay pulses. ON time Minimum relay time The minimum length of the relay pulse. Just before the dead band area the pulse is as short as it can get. 7. and they will be pulsing if it is closer to the setpoint. the relays will be fixed ON if the regulation deviation is big. then the pulses will be long (or a continued signal).AGC-4 DRH 4189340686 UK PID controller As the drawing indicates. This is the adjusted time "GOV ON time"/("AVR ON time"). In the dynamic range the pulses get shorter and shorter when the regulation deviation gets smaller. then the pulses will be short. If the deviation is big. The longest pulse will appear at the end of the dynamic range (45 Hz in the example above). the length of the relay pulse will depend on the actual regulation deviation.1 Relay adjustments The time settings for the regulation relays can be adjusted in the control setup. 8 Droop mode 7.2 Signal length The signal length is calculated compared to the adjusted period time. This regulation mode can be used where it is required/allowed that the generator frequency drops with increasing load.8.5 % 20 0 0 10 20 30 40 50 60 Kp In this example we have a 2 percent regulation deviation and an adjusted value of the Kp = 20. If the value is different from 0%. 7. P regulator 2% 4% 100 Output (%) 80 1% 60 40 0.7.PID controller AGC-4 DRH 4189340686 UK 7. The calculated regulator value of the unit is 40%. Now the pulse length can be calculated with a period time = 2500 ms: The length of the period time will never be shorter than the adjusted ON time.1 Principle and setup Droop mode can be used when a new genset is installed together with existing gensets which operate in droop mode in order to make equal load sharing with the existing gensets. In the drawing below the effect of the proportional regulator is indicated. DEIF A/S Page 181 of 199 . the droop percentage will be applied on top of the regulation output of the governor (f) or AVR (U). The droop mode parameters can be adjusted between 0-10% droop. Please see the utility software help function (F1) for details about application configuration. This is done through the utility software or with quick setup. frequency droop regulation Activates the use of frequency droop parameters mentioned above GOV/AVR control Act.AGC-4 DRH 4189340686 UK PID controller Droop regulation parameters Parameter number Name Description 2514 f droop Droop setting for frequency regulator with analogue output 2573 f droop relay Droop setting for frequency regulator with relay regulation 2644 U droop Droop setting for voltage regulator with analogue output 2693 U droop relay Droop setting for voltage regulator with relay regulation When using droop mode. Q (kVAr).2 Voltage droop example The diagram below shows an example for one generator where the voltage droop setting is 4% and 10% in proportion to the reactive power. the voltage drops as the load increases. a digital input. the AGC has to be configured with a Single DG application drawing. the frequency PID (f) and voltage PID (U) is active Activating droop regulation The following M-Logic commands are used to activate droop regulation. As it is shown in the example. AOP button or an event.8. The principle is the same with generators in parallel where the generators will use the droop to share the load and allow the voltage/frequency to drop accordingly. U [V] 400 4% droop 380 10% droop 360 0 0 DEIF A/S 50% 100% % Q [kVAr] Page 182 of 199 . M-Logic output M-Logic command Description GOV/AVR control Act.e. voltage droop regulation Activates the use of voltage droop parameters mentioned above Application configuration When operating in droop mode. 7. This gives more options to activate the regulation i. 8. the load change (ΔP) is larger than before. the principle is the same with voltage regulation. Freq (Hz) fNOM P(kW) ∆P This can be used if the generator must operate base-loaded. the principle is the same with voltage droop regulation.AGC-4 DRH 4189340686 UK PID controller 7. the diagram below shows how a frequency variation gives a change in the load. In this diagram. The load change is marked as ΔP. the diagram below shows how a frequency variation gives a change in the load.8. Freq (Hz) fNOM P(kW) ∆P This can be used if the generator must operate as a peak load machine. The load change is marked as ΔP.3 High droop setting To illustrate the influence of a high droop setting. This means that the generator will vary more in loading than with the higher droop setting. 7. DEIF A/S Page 183 of 199 .4 Low droop setting To illustrate the influence of a low droop setting. 5 Compensation for isochronous governors When the genset is equipped with a governor only providing isochronous operation. DEIF A/S Page 184 of 199 .AGC-4 DRH 4189340686 UK PID controller 7. the droop setting can be used to compensate for the missing droop setting possibility on the governor.8. Synchronisation principle – dynamic synchronisation LOAD GB GB Speed: Speed: 1503 RPM 50. This means that it is running with a higher speed than the generator on the busbar. the synchronising genset is running with a positive slip frequency.1 Hertz G Synchronising generator L2 L2 1500 RPM 50.2 Dynamic synchronisation In dynamic synchronisation the synchronising genset is running at a different speed than the generator on the busbar.0 s 7.0 Hz.1 Synchronisation principles The unit can be used for synchronisation of generator and mains breaker (if installed). The generator on load is running at 1500 RPM ~ 50.5 s In the example above. Two different synchronisation principles are available.1 Hz. Typically. the synchronising genset is running at 1503 RPM ~ 50. Synchronisation 8.00 Hertz G L3 L3 Generator on load L1 L1 L1 L1 L1 L1 L1 L3 L1 L3 L2 L2 L3 L2 L3 L2 L3 L2 L3 L2 Angle L1gen/L1bus [deg] Synchronised 180° 90° ∆t [s] 0° 0s 2. The dynamic principle is illustrated below. the term "synchronisation" means "synchronising and closing of the synchronised breaker". This gives the synchronising genset a positive slip frequency of 0.1 Hz. In the following. DEIF A/S Page 185 of 199 .5 s 5. The objective is to avoid a reverse power trip after the synchronisation.Synchronisation AGC-4 DRH 4189340686 UK 8. This chapter describes the principles of the synchronisation functions and the adjustment of them. This speed difference is called slip frequency. 8. namely static and dynamic synchronisation (dynamic is selected by default). This is because we are only interested in the slip frequency for calculating when to release the synchronisation pulse.AGC-4 DRH 4189340686 UK Synchronisation The intention of the synchronising is to decrease the phase angle difference between the two rotating systems.1 Hz): The synchronisation pulse is always issued. but for illustrative purposes the vectors for the generator on load are not shown to be rotating.1 Hz compared to the busbar. This means that the close breaker signal is actually issued before being synchronised (read L1 phases exactly at 12 o’clock).2 Load picture after synchronising When the incoming genset has closed its breaker. These two systems are the three-phase system of the generator and the three-phase system of the busbar. In the illustration above. 8. so the closing of the breaker will occur at the 12 o’clock position. whereas phase L1 of the synchronising genset is pointing in different directions due to the slip frequency. The breaker close signal will be issued depending on the breaker closing time and the slip frequency (response time of the circuit breaker is 250 ms. DEIF A/S Page 186 of 199 . The length of the synchronisation pulse is the response time + 20 ms (2020 Synchronisation). and the breaker will be closed. phase L1 of the busbar is always pointing at 12 o’clock. Illustration 2 below shows that at a given negative slip frequency.2. the incoming genset will receive power from the original genset. Please observe the chapter regarding PID controllers and the synchronising controllers.1 Close signal The unit always calculates when to close the breaker to get the most accurate synchronisation. and the slip frequency is 0. the incoming genset will export power to the load. the difference in the phase angle between the synchronising set and the busbar gets smaller and will eventually be zero. This phenomenon is called reverse power. Of course both three-phase systems are rotating.2. In the illustration above. it will take a portion of the load depending on the actual position of the fuel rack. 8. When the generator is running with a positive slip frequency of 0. then the two systems will be synchronised every 10 seconds. Illustration 1 below indicates that at a given positive slip frequency. Then the genset is synchronised to the busbar. FUEL INDEX 0% G1 100% PGen1 GB LOAD FUEL INDEX 0% G2 100% PGen2 GB Illustration 1. 2025 tMB Mains breaker closing time Adjust the response time of the mains breaker. DEIF A/S Page 187 of 199 . POSITIVE slip frequency ______________________________________________________________________________________ FUEL INDEX 0% G1 100% PGen1 GB LOAD FUEL INDEX 0% G2 100% PGen2 GB Reverse power Illustration 2. 2022 fMIN Minimum slip frequency Adjust the maximum negative slip frequency where synchronising is allowed. NEGATIVE slip frequency 8. type in the control setup and is adjusted in 2020 Synchronisation.2.value) The maximum allowed voltage difference between the busbar/mains and the generator.3 Adjustments The dynamic synchroniser is selected in 2000 Sync. Setting Description Comment 2021 fMAX Maximum slip frequency Adjust the maximum positive slip frequency where synchronising is allowed. 2023 UMAX Maximum voltage differrence (+/. 2024 tGB Generator breaker closing time Adjust the response time of the generator breaker. the synchronising settings can be set up with a positive slip frequency.AGC-4 DRH 4189340686 UK Synchronisation To avoid nuisance trips caused by reverse power. and where the incoming gensets are able to take load just after the breaker has been closed. the synchronising genset is running very close to the same speed as the generator on the busbar. 8.3 Static synchronisation In static synchronisation. then synchronising can still occur as long as the frequency is within the limits of the slip frequency adjustments. Dynamic synchronisation is recommended where fast synchronisation is required.01 Hertz G Synchronising generator α α L1 L3 L2 Generator on load α L1 L1 L3 1500 RPM 50. This actually means that when the unit is aiming to control the frequency towards its setpoint.00 Hertz G L1 L1 L1 L1 L1 L3 L2 L2 L3 L2 L3 L2 L3 L2 L3 L2 L3 L2 Angle L1gen/L1bus [deg] Synchronised 30° 20° 10° 0° DEIF A/S t [s] Page 188 of 199 . The static principle is illustrated below. It is not recommended to use the static synchronisation principle when relay regulation outputs are used. The aim is to let them run at exactly the same speed and with the phase angles between the three-phase system of the generator and the three-phase system of the busbar matching exactly.3 RPM 50. Synchronisation principle – static synchronisation LOAD GB GB Speed: Speed: 1500. This is due to the slower nature of the regulation with relay outputs. Static and dynamic synchronisation can be switched by using M-logic.AGC-4 DRH 4189340686 UK Synchronisation It is obvious that this type of synchronisation is able to synchronise relatively fast because of the adjusted minimum and maximum slip frequencies. because the slip frequency is either very small or nonexisting. dU difference Direction of rotation UBB UGEN The synchronisation pulse is sent dependent on the settings in menu 2030. This is illustrated in the drawing below.1-20.2 Close signal The close signal will be issued when phase L1 of the synchronising generator is close to the 12 o’clock position compared to the busbar which is also in 12 o’clock position. The range is +/-0.3. The close signal can be issued when the phase angle UGENL1-UBBL1 is within the adjusted setpoint. 8. to 0 deg.1 Phase controller When the static synchronisation is used and the synchronising is activated. If the maximum df setting is adjusted to a high value. then the observations in the section about "dynamic synchronisation" must be observed. a "close window" can be adjusted. When the genset frequency is within 50 mHz of the busbar frequency. It depends on whether it is the GB or the MB that is to be synchronised. This controller uses the angle difference between the generator system and the busbar system as the controlling parameter. no load jump will occur.3. 8.Synchronisation AGC-4 DRH 4189340686 UK 8. It is not relevant to use the response time of the circuit breaker when using static synchronisation. Since the fuel rack position almost exactly equals what is required to run at the busbar frequency. then the phase controller takes over. To be able to get a faster synchronisation. ± close window Max. DEIF A/S Page 189 of 199 . the frequency controller will bring the genset frequency towards the busbar frequency. This is illustrated in the example above where the phase controller brings the phase angle from 30 deg. dU difference Max.3 Load picture after synchronisation The synchronised genset will not be exposed to an immediate load after the breaker closure if the maximum df setting is adjusted to a low value.0 deg.3. 2070 Phase KP Adjustment of the proportional factor of the PI phase controller. Static synchronisation is recommended where a slip frequency is not accepted. "Infinite sync" will close the MB to the busbar and run the generator in sync with the mains. 2035 Static type GB "Breaker" or "Infinite sync" can be chosen. 2036 Static type MB "Breaker" or "Infinite sync" can be chosen.AGC-4 DRH 4189340686 UK Synchronisation After the synchronising. for instance if several gensets synchronise to a busbar with no load groups connected.4 Adjustments The following settings must be adjusted if the static synchroniser is selected in menu 2000: Setting Description Comment 2031 Maximum df The maximum allowed frequency difference between the busbar/mains and the generator. Page 190 of 199 .value related to the nominal generator voltage. +/.value. 2062 Phase KI Adjustment of the integral factor of the PI phase controller. DEIF A/S Only used during relay regulation output. 2032 Maximum dU The maximum allowed voltage difference between the busbar/mains and the generator. +/. Static and dynamic synchronisation can be switched by using M-logic. the unit will change the controller setpoint according to the requirements of the selected genset mode. Only used during analogue regulation output. The MB is not allowed to close. 2061 Phase KP Adjustment of the proportional factor of the PI phase controller. 2033 Closing window The size of the window where the synchronisation pulse can be released. 2034 Static sync Minimum time inside the phase window before sending a close command. "Infinite sync" will close the GB to the busbar and run the generator in sync with the mains. The GB is not allowed to close. +/. 8.value.3. the generators will equalise the voltage and frequency and will eventually run in a synchronised system. and as soon as the excitation is switched on. This function can only be used with a magnetic pick-up or J1939 speed signal. The "close before start" function can also be used if the load requires a "soft" start. This is faster than the normal synchronising.AGC-4 DRH 4189340686 UK Synchronisation 8. and it takes some time to achieve that position. then the regulators of the AGC will be switched on after an adjustable delay. Flowchart abbreviations Delay 1 Delay 2 Delay 3 = = = Menu 2252 Menu 2262 Menu 2271 SP1 SP2 = = Menu 2251 Menu 2263 DEIF A/S Page 191 of 199 . When the gensets are started up. The purpose of the "close before excitation" is that the gensets are able to be ready for the load very quickly. the gensets are ready for operation. the breakers will be closed and the excitation started.4 GB closing before excitation It is possible to adjust the AGC to start up the genset with the excitation switched off. The principle is described in the flowcharts below. This function is not available in units with option G3. because in that case the breakers will not be closed until the generator voltage is in the synchronised position. The function can be used in the single AGC but also the AGC with option G4 or G5. This can be the case when the gensets connect to a transformer. The excitation must be increased slowly when this function is used. As soon as the excitation is activated. This function is called "close before excitation". When the excitation is activated. It is also possible to close the breaker before the engine is started. All of the gensets will be connected to the busbar as soon as they are started. AGC-4 DRH 4189340686 UK Synchronisation 8.4.1 Flowchart 1. GB handling Start Start DG(s) No RPM > SP1 No Delay 1 expired Yes Yes Close GB No RPM > SP2 No Delay 1 expired Yes Trip GB Start excitation Activate regulators Delay 2 expired Yes Delay 1 expired on all DG(s) Yes Start excitation No No Yes Delay 2 expired No Yes No Delay 3 expired UBUS OK No Activate regulators Yes ”Close before excitation” failure No Yes Yes End DEIF A/S UBUS OK Sync GB No Delay 3 expired Yes ”Close before excitation” failure Page 192 of 199 . AGC-4 DRH 4189340686 UK Synchronisation 8.2 Flowchart 2.4. TB handling (option G5) Start No TB Open Yes Any GB closed No Yes PAVAIL > PCAP No Yes ”GB + TB” No Yes MB OFF No Yes Close TB Sync TB End DEIF A/S Page 193 of 199 . If the RPM is below the setpoint. AGC power management plant . 2253 Output A Select the relay output that must be used to start the excitation. In the example below the setting is adjusted to 400.tie breaker present In one of the applications a tie breaker is present.3 Genset start actions The start sequence of the AGC is changed in order to achieve the function "close before excitation". DEIF A/S Page 194 of 199 . When the delay expires and the RPM is above the setpoint. 8. The following parameters must be adjusted: Menu Description Comment 2251 RPM setpoint for breaker closing The generator breaker will close at the adjusted level. Configure the relay to be a limit relay in the I/O setup.4.Synchronisation AGC-4 DRH 4189340686 UK 8. then the GB will be tripped.4. AGC power management plant . then the excitation is switched on. If it is adjusted to 0. When the engine RPM has reached the setpoint (menu 2263) (1450 RPM). Engine RPM 1500 RPM 1350 RPM 400 RPM time Close GB Start RPMNOM excitation The diagram above shows that the GB will be closed at 400 RPM. then the breaker will be closed when the start command is given. The range is from 0-400 RPM. 2252 RPM timer The genset must reach the setpoint (menu 2263) within the adjusted delay.no tie breaker present 3.4 Breaker sequence The "GB close before start" function can be used in three applications: 1. and it must be adjusted in the menu 2261 whether only the generator breaker must be closed or both the generator breaker and also the tie breaker. 2255 Enable Enable the function "close before excitation". then the excitation will be started. AGC single genset plant 2. and the selected fail class will be executed.bef.5 "Close before excitation" failure If the starting of the genset does not succeed. 2263 Excitation start level The setting defines at what level of RPM the excitation is started.4. DEIF A/S Page 195 of 199 .AGC-4 DRH 4189340686 UK Synchronisation The breaker sequence adjustments are the following: Menu Description Comment 2261 Breaker selection Select breakers to close: GB or GB + TB. 2262 Timer The timer defines the period from the excitation is started and until the regulation is activated. 8. The alarms with inhibit set to "Not run status" will be activated after this timer has expired.fail" will occur. then the alarm menu 2270 "Cl.exc. Input Relay Relay selected Two relays used Relay not selected One relay used Not used Synchronising: The breaker ON relay and the sync. Synchronising: Not possible. Synchronising: The breaker ON relay activates when synchronising is OK.AGC-4 DRH 4189340686 UK Synchronisation 8. signal is issued by the sync. then the relays on terminal 17/18/19 (generator breaker) and terminal 11/12/13 (mains breaker) will activate. The selected relay for this function must have the "limit" function. relay activate at the same time when synchronising is OK. input. relay activate at the same time when the voltage and frequency are OK. relay activate at the same time when the voltage and frequency are OK. and the breaker must close when this relay output is activated. See note below! Blackout closing: The breaker ON relay and the sync. Blackout closing: The breaker ON relay activates when the voltage and frequency are OK. When two relays are used together with the separate sync.5 Separate synchronising relay When the AGC gives the synchronising command. Blackout closing: The breaker ON relay and the sync. Blackout closing: The breaker ON relay activates when the voltage and frequency are OK. relay. then please notice that the breaker ON relay will be activated as soon as the GB ON/synchronising sequence is activated. High Synchronising: The relays will activate in two steps when the synchronising is selected: 1. The table below describes the possibilities. Breaker ON relay activates. before the sync. Synchronising: Not possible. DEFAULT selection Low Synchronising: Not possible. DEIF A/S Page 196 of 199 . When synchronised the sync. This default function can be modified using a digital input and extra relay outputs depending on the required function. This is adjusted in the I/O setup. relay activates. 2. and the input is selected in the input settings in the utility software. Care must be taken that the GB ON relay cannot close the breaker. relay activate at the same time when the voltage and frequency are OK. The relay selection is made in the menu 2240. Blackout closing: The breaker ON relay activates when the voltage and frequency are OK. Blackout closing: The breaker ON relay and the sync. rec2 2291 Mains condition Ok 2281-2284 Yes No Delay act. the long interruption timer (menu 2294 "Recovery del. Examples: Recovery timer 1 (short interruption timer) Menu 2291 = 3 s Menu 2292 = 5 s That means: if the short interruption timer is set to < 3 s. After blackout. 2") will start to run. rec2 Expires 2291 Recovery del. the timer in menu 2291 ("Delay activate recovery 2") will start to run. DEIF A/S Page 197 of 199 . the synchronising of the MB will start.1 2292 Close Mains breaker If the "Delay activate recovery 2" timer runs out.6 Inhibit conditions before synchronising mains breaker This function is used to inhibit the synchronising of the mains breaker after blackout. and the grid is back and voltage and frequency are inside the acceptable range stated above.2 2294 Recovery del. Mains failure Delay act. then after 5 s the MB can be closed. and if the mains voltage and frequency are inside the limits (2281/2282/2283/2284) before the timer runs out. 1") will be started. the short interruption timer (menu 2292 "Recovery del. When the timer has run out.AGC-4 DRH 4189340686 UK Synchronisation 8. Then the MB can be closed. DEIF A/S Page 198 of 199 . The inhibit parameters for synchronising the MB are disabled by default.AGC-4 DRH 4189340686 UK Synchronisation Recovery timer 2 (long interruption timer) Menu 2291 = 3 s Menu 2294 = 60 s The long interruption timer will allow the MB to reconnect as soon as the mains voltage and frequency have been uninterrupted within the timer setting in menu 2294 ("Recovery del. 2"). 1 Related parameters The Designer’s Reference Handbook relates to the parameters 1000-1980. 5000-5270.AGC-4 DRH 4189340686 UK Parameter list 9. DEIF A/S Page 199 of 199 . 3000-3490. document number 4189340688. Parameter list 9. please see the separate parameter list. 2000-2780. 6000-6900 and 7000-7120. 4120-4990. For further information.