AnalogRef. No. VOE21A1004952 CPN 80858814 Printed in Sweden 2008-05 Volvo, Hameln English CST California Proposition 65 Warning Diesel engine exhaust and some of its constituents are known to the State of California to cause cancer, birth defects, and other reproductive harm. California Proposition 65 Warning Battery posts, terminals and other related accessories contain lead and lead compounds, chemicals known to the State of California to cause cancer and other reproductive harm. Wash hands after handling. VOE21A1004952h.pdf Index 1. 1.1 1.2 1.3 2. 2.1 2.2 2.3 2.3.1 2.3.2 3. 3.1 3.2 3.3 3.4 3.4.1 3.4.2 3.4.3 4. 4.1 4.2 4.3 4.4 5. 5.1 5.2 6. 6.1 6.2 6.3 6.4 7. 7.1 7.2 General information _____________________________________3 Rights to changes ______________________________________________ 3 Packaging and storage __________________________________________ 3 Safety measures ________________________________________________ 3 Introduction ____________________________________________6 Advantages and specials _________________________________________ 6 Components of the system _______________________________________ 7 Description of the accessories ____________________________________ 8 Adapter box for the PNP mode ___________________________________________ 8 Accessories for the stringline sensing _____________________________________ 9 Mounting ______________________________________________10 Dimensions of the device _______________________________________ 10 Mounting of the G 176 M ________________________________________ 11 Attaching the connecting cable __________________________________ 11 Attaching the system components ________________________________ 12 Attaching the sensing tube to the sensor arm______________________________ 12 Attaching the sensing ski to the sensor arm _______________________________ 12 Attaching the sensor arm to the controller ________________________________ 12 Operation, working examples and start-up __________________ 13 The control elements ___________________________________________ 13 Sensing of a stringline __________________________________________ 14 Sensing of a surface ___________________________________________ 14 Start-up ______________________________________________________ 15 Maintenance ___________________________________________16 General information ____________________________________________ 16 Periodic maintenance___________________________________________ 16 Connecting plan, specifications and troubleshooting ________17 Pin connections _______________________________________________ 17 Block diagram _________________________________________________ 17 Specifications _________________________________________________ 18 List of failures and troubleshooting _______________________________ 19 Spare parts ____________________________________________20 Illustration of the spare parts ____________________________________ 20 List of spare parts _____________________________________________ 21 Page 2 1 Rights to changes We try to ensure that these operationg instructions are correct and up to date. They can be applied for all applications in conjunction with ABG equipment. without prior warning. under circumstances. 1. do not correspond to the information given here. it might be necessary.3 Safety measures Warning: Before assembly.2 Packaging and storage The product is carefully packed to ensure sufficient protection during shipment. and the sensors. Should there be signs of damage the equipment must not be operated !!! Damaged cables and connectors are also a safety risk and must not be used !!! In the event of damage contac ABG.1. Further information about the assembly of the equipment. The equipment must be protected against humidity and dirt if it is not to be used immediately. Assembly: Only original ABG cables may be used. losses or damages caused thereby. Page 3 . Ensure that the safety screw fasteners sit securely on the connectors . setting up and operating the equipment read the operating instructions carefully and fully. Safety precautions: The safety precautions recommended here correspond to basic regulations regarding operation of electrical systems. General information 1. In order to maintain our technical leadership. however. can be found in the data sheets attached or in these operating instructions. On receipt the packaging and the contents should be inspected for possible damage. Plugs and sockets must not be removed from the cable as they are protected against humidity and removing them would destroy their protection. 1. Should questions arise. contact your ABG supplier. to make changes to the product and to its operation which. We accept no liability for disturbances. The maximum voltage between any two circuits isolated from one another. or between any isolated circuit and earth is. Fuses: The equipment is fitted with electronic fuses which protect it against wrong polarity. if not heeded to. all connections must be made in accordance with VDE regulations or regulations of the area in which the equipment is used. limited to its highest input voltage or the supply voltage. Nevertheless. We would therefore like to point out the following which. can lead to disturbances during the operation later: - Pay attention to the correct polarity of the connections Do not exceed (neither too high nor too low) the specified voltage supply range Protect the equipment with a suitable supply fuse Use cables of adequate current and voltage ratings Use the shortest possible cable paths. microprocessor technology requires careful installation. (Avoid loops) Lay out load. Page 4 . The voltages specified in the technical data may not be exceeded. Safety in the event of disturbances: This equipment has been developed and tested for industrial environments. unless otherwise stated. Further. Connect screened leads to earth at one end only (equipment end) Do not supply other equipment directly from the supply terminals Do not use unused terminals as connections for other equipment Maximum voltages: Do not exceed the maximum voltages. All supply cables and terminals must be sized according to the current taken. The connecting terminals or connectors must be fitted with a suitable fuse.Wiring and cabling: The wiring and cabling must be correctly carried out in accordance with these instructions. control and signal cables in separate channels where possible Suppress contactor and relay coils Prerequisite for a disturbing sure mode is a good electrical connection between the machine chassis and housing chassis of the units. voltage transients and overvoltages of short duration. Explosive areas The equipment is not designed for use in explosive areas. Alarm supervision In complex systems. Damages caused by such negligence are not covered by the manufacturer's guarantee. it is advisable. Fault clearance Before starting to clear faults make sure that all voltages have been disconnected.Configuration: The equipment can be configured by the user. in which a fault could endanger operating personnel or damage to the system. because of its dependence on the system. offer adequate protection. In many cases the use of an alarm from within the controller itself does not. to use an independent alarm unit. Before removing or replacing sensors make sure that the voltage supply has been disconnected. Ask for help Ask your ABG supplier if you have questions concerning the operation and assembly of the equipment. Defective equipment should be tested in an area which has been especially built for this purpose. It is the responsibility of the user to reconfigure according to the operating conditions of the system. Page 5 . Failure to observe the above safety measures can cause breakdown of the equipment or of the system. An independent alarm unit provides protection and shut-down of the system in the event of an alarm. Any attempt to remove faults from equipment that is still installed can be dangerous to personnel and to the system itself. With the ABG level controller G 176 M you made the right choice. The smallest fraction of a centimer during the laying of asphalt. Increasing costs for material and operating time call for precise working at an according capacity per day.40 V DC Control modules for Grade and Slope interchangeable Optional connection for the ABG laser receiver Page 6 . direction and cross slope.2. bulldozers and other construction machines.1 Advantages and specials The Grade Controller G 176 M and the Slope Controller S 276 M are two fully independently working units which can be run separately but also together as a whole system for the automatic control of level. All advantages at a glance: Easy handling Safe to false polarity and voltage peaks Supply voltage 10 . The ABG levelling system is most commonly used to control the screed position of the finisher. concrete pavers. but also works successfully on milling machines. Introduction 2. or superfluous extension of the operating time may represent for you the limit between profit and loss. The reliable automatic levelling system of ABG for the control of your road construction machine. 2 Components of the system The components of the system: G 176 M. device Sensor arm with balancing weight Sensing tube 8" Sensing ski 6 m connecting cable 3 m connecting cable Order number: 14258982 Order number: 13913058 Order number: 10644466 Order number: 58867623 Order number: 13925193 Order number: 13925785 Page 7 . sensing ski and 6 m connecting cable. sensing tube.2. The G 176 MS system Order number: 13981915 consists of the following components: 1 1 1 1 1 1 Level controller G 176 M. sensor arm. Page 8 .3 Description of the accessories The accessories mentioned here can be ordered at ABG with their order number.2. 0.Cross Hasp 500m = 13948336 1000m= 13948344 1500m= 13948351 Steel rod. approx.2 Accessories for the stringline sensing Tens. complete Wire Tensioner Ordernumber: 13978192 Cross Bar Ordernumber: 54427570 Clamp Ordernumber: 56278344 Page 9 .3.Wire W.2.80 m Order number: 13948286 The steel rod Metal stringline holder. 3.1 Dimensions of the device The dimensions of the G 176 M Page 10 . Mounting 3. Fastening tube with crank handle Locking screws 1.2 Mounting of the G 176 M The level controller G 176 M can be mounted easily and rapidly with simple tools. Insert the round centering pivot that is on top of the controller’s housing vertically into the fastening tube. Turn the controller’s housing so that the operator can see the lamps (front panel of the device against the direction of travel). For this purpouse a fastening tubewithacrankhandleshouldbemountedasanextension of the control unit (actuator). 3. To the machine To the controller Attaching of the connecting cable Page 11 . 3. Connect the 7 pole socket of the connecting cable to the 7 pole plug of the controller. Lock the controller’s centering pivot to the fastening tube with the according locking screws. Loosen the locking screws of the fastening tube.3.3 Attaching the connecting cable Centering pivot Mounting of the G 176 M Set the valve switch to the “STANDBY” position. 4. 2. 5. Connect the 10 pole socket of the connecting cable to the 10 pole device plug of the machine. Set the valve switch to the “STANDBY” position. 2 Attaching the sensing ski to the sensor arm Remove the locking pin from the pin of the sensing ski. Insert the end of the sensing tube into the fastening ring of the sensor arm.4.4. The sensing tube is used for sensing the stringline. Attaching of the sensing tube to the sensor arm 3.4 Attaching the system components The system has two different sensors for sensing the reference. 3. The sensing ski is used for sensing the ground. Push the sensor arm on the shaft. Lock the pin with the locking pin. Lock the sensing tube with the nut. Insert the fastening ring of the sensor arm into the fastener of the ski.4.3 Attaching the sensor arm to the controller Turn the flat part of the shaft towards the front of the controller.3. Attaching of the sensing ski to the sensor arm 3. Push the pin through the fastener of the ski and the fastening ring of the sensor arm. Loosen the locking screw of the sensor arm. Locking screw Attaching of the sensor arm to the controller Page 12 . remove the pin. Lock the sensor arm with the locking screw.1 Attaching the sensing tube to the sensor arm Unscrew the nut at the end of the sensing tube. working examples and start-up 4.1 The control elements Control lamp Valve switch Control lamp Selector switch Sensitivity adjustment Description of the control elements Page 13 .4. Operation. Sensing of a surface Page 14 . The sensing tube must be attached to the sensor arm. it is possible to guide the sensing tube beneath the stringline. When attaching the sensor arm take care that the flat side of the shaft is oriented towards the front side of the controller and that the fastening screw of the sensor arm rests on the flat part of the shaft. When attaching the sensor arm take care that the flat side of the shaft is oriented towards the front side of the controller and that the fastening screw of the sensor arm rests on the flat part of the shaft. the counterweight has to be set in such a way that the sensor arm presses the sensing tube from below against the stingline when the controller is set to zero.4.3 Sensing of a surface Switch the selector on the module to the “GRADE” position. Set the counterweight of the sensor arm in such a way that the sensor arm presses the sensing tube onto the reference when the controller is set to zero. Set the valve switch to the “STANDBY” position. Set the valve switch to the “STANDBY” position. The sensing ski must be attached to the sensor arm. Sensing with the tube gliding under the stringline 4. For this purpose. The zero setting is achieved by positioning the controller by means of the crank handle until the two control lamps go out.2 Sensing of a stringline Switch the selector on the module to the “GRADE” position. Direction of travel Stringline Direction of travel Sensing of the stringline Note: If the tension of the stringline used as reference is too low. The zero setting is achieved by positioning the controller by means of the crank handle until the two control lamps go out. Set the counterweight of the sensor arm in such a way that the sensor arm presses Direction of travel the sensing ski onto the reference when the controller is set to zero. Valve switch Note: A clockwise rotation of the sensitivity adjustment increases the sensitivity of the controller. When this is the case.influence the control circuit. A counterclockwise rotation decreases the sensitivity. turn the adjuster slowly counterclockwise until the hydraulic system quiets down. The valve switch Turn the sensitivity adjuster clockwise until the hydraulic system starts to swing.4. The crank handle Page 15 . The automatic system is activated. No further adjustment should be needed if the readjustment had been done under working conditions.temperaturesetc. The variation of the working level (adjustment of the working point) has to be done by means of the crank handle. A minor readjustment of the device may be necessary after the first operation of the plant becausevibrations.4 Start-up Turning the valve switch to the position “ON” connects the output of the controller with the according valve. Sensitivity adjustment The sensitivity adjustment (loosen the locknut and adjust by means of a screw driver). Maintenance 5. grease. The power supply cables should also be checked regularly in order to detect any damage and dirt.5. The electronic components are mounted in a solid case in order to avoid any mechanical damage. Note: Keep the thread of the plug-connections and of the cable connectors free of any dirt.2 Periodic maintenance Normal repair procedures carried out in the open consist in replacing burned-out lamps and other spare parts that have been located with the troubleshooting. 5. Remove any asphalt or concrete sticking to the sensor arm by means of an appropriate agent and oil the bearing afterwards. asphalt or concrete in order to avoid a bad contact.1 General information The level controller has been designed for high working safety so that the maintenance needs a minimum of procedures only. Page 16 . 1 Pin connections 7 pole device plug: for the connection to the machine Allocation: A: + supply B: Output DOWN C: .6. Vcc Transmitter Vcc DOWN UP The block diagram of the G 176 B Page 17 .2 7 pole device plug Block diagram Amplifier Transmitter Ref. specifications and troubleshooting 6. Connecting plan.supply D: Output UP E: free F: free G: free Plug on the level controller 6. Operating range: +/. 1.9 kg Protection type: IP 54 The values given for accuracy and resolution are purely electrical values of the controller.25 mm level difference measured at the sensor arm Sensitivity: Accuracy: Adjustable from overswinging up to a dead range of 5 mm 0. approx.6.3 Specifications Power supply: 10-40 V DC Operating current: 0.80 mm level difference measured at the sensor arm Resolution: 0. (current limited) Output signal: ON/OFF with pulse width modulation (*NPN*) Frequency: 3 Hz approx. Page 18 .5 amp. 10-100 Hz Weight: approx. (without valves) Current load: 3 amp. Those actually reached also depend from the construction and type of the machine respectively used and of the operating conditions. approx.5 mm level difference measured at the sensor arm Working temperature range: -10 °C to +60 °C Storage temperature range: -25 °C to +75 °C Vibration: up to 4g. 4 List of failures and troubleshooting The list of failures and troubleshooting indicates all the failures that are the most likely to occur during the operation of the system.6. It also describes their reasons and the actions to be done in order to eliminate them. Page 19 . Controller does not actuate the valves No voltage avilable for the controller Check the wiring to the machine Controller module faulty Replace the module Wiring within housing of the controller faulty Check the wiring Controller module faulty Replace the module Current cable to the controller faulty Replace the cable Cable damaged Check the cable with the ohmmeter Wiring within the housing faulty Check the wiring Lamps are burned-out Replace the lamps Controller module faulty Replace the module Hydraulic system works on only one side. One lamp is on (indicates the direction of the movement) Controller module faulty Replace the module Sensor is faulty Replace the sensor Hydraulic system works but only one lampe is on Lamps are faulty Replace the lamp Hydraulic system works but both lamps remain on Controller module faulty Replace the module Sensitivity of the controller cannot be set Controller module faulty Replace the module Zero offset of the controller Fastening screws of the sensor bearing got loose Reset the sensor and tighten the screws Controller module faulty Replace the module Sensor is faulty Replace the sensor Lamps work but controller does not actuate the valves Lamps are not on but controller actuates the valves Any control or measurement on the controller should be executed by educated personnel only which has been specially trained for such work. Symptoms: Possible reasons: Action: Lamps are not on. 1 Illustration of the spare parts 14 1 2 4 16 5 2 8 9 10 6 11 7 12 13 Illustration of the spare parts of the G 176 M Page 20 19 . Spare parts 7.7. Order number Bezeichnung 01 02 05b 06 07 08 09a 09b 10 11 12 13 14 16 19 Aufnahmezapfen Schalter Potentiometer 6. Halterung Achse Widerstandsleiste Gerätestecker 7pol Dichtung (für Gerätestecker 7pol) Riemenrad für Potentiometer Zahnriemen Lagerschale mit Lager Riemenrad für Achse Controlmodul (Standard) Dichtung für Modul Kabeldose 7 polig 90° Winkel 14232763 13913009 14232805 14232896 14232888 14232904 14232847 14232854 14232912 14232938 14232870 14232970 14232771 14232862 13969100 Description Page 21 Centering pivot Switch Potentiometer 6.3 mm shaft (sensitivity) Sensor potentiometer with holder Shaft Resistorbord Connector 7 pole male Gasket (for connector 7 pole male) Belt wheel for potentiometer Toothed belt Bearing shell and bearing Belt wheel for axis Controlmodule (standard) Gasket for module Cable con.7. 7 pole female 90° angle.2 List of spare parts Pos. m.3mm Achse (Empf.) Sensor Pot. female . Bestellnummer Pos. Slope-Controller S 276 M Page 22 . 1 4. 1.3 6. working examples and start-up _______________ 31 The control elements ___________________________________________ 31 The Handset __________________________________________________ 31 Zero setting ___________________________________________________ 32 Setting of the crosse slope and start-up ___________________________ 33 Maintenance _________________________________________ 34 General information ____________________________________________ 34 Periodic maintenance __________________________________________ 34 Connecting plan.2 General information ___________________________________ 24 Rights to changes _____________________________________________ 24 Packaging and storage _________________________________________ 24 Safety measures ______________________________________________ 24 Introduction __________________________________________ 27 Advantages and specials _______________________________________ 27 Components of the system ______________________________________ 28 Description of the accessories ___________________________________ 29 Mounting ____________________________________________ 29 Dimensions of the device _______________________________________ 29 Adapter box for the PNP mode __________________________________________ 29 Mounting _____________________________________________________ 30 Attaching the connecting cable __________________________________ 30 Operation.1 2.1 1.1 5.4 7.5 5.2 4. 3. 7.2 2.2 1.3 2.3 4. 5.1 6.3 3. 2. 6.1 3.2 6. specifications and troubleshooting ______ 35 Pin connections _______________________________________________ 35 Block diagram ________________________________________________ 35 Specifications _________________________________________________ 36 List of failures and troubleshooting _______________________________ 37 Spare parts ___________________________________________ 38 Illustration of the spare parts ____________________________________ 38 List of spare parts _____________________________________________ 40 Page 23 .Index 1.2 6.2 3. 4.1 2.3 4.1 7.3. setting up and operating the equipment read the operating instructions carefully and fully. contact your ABG supplier. 1. We accept no liability for disturbances.1 Rights to changes We try to ensure that these operationg instructions are correct and up to date.3 Safety measures Warning: Before assembly. Should there be signs of damage the equipment must not be operated !!! Damaged cables and connectors are also a safety risk and must not be used !!! In the event of damage contact ABG. They can be applied for all applications in conjunction with ABG equipment. and the sensors. 1. The equipment must be protected against humidity and dirt if it is not to be used immediately. Further information about the assembly of the equipment. On receipt the packaging and the contents should be inspected for possible damage.2 Packaging and storage The product is carefully packed to ensure sufficient protection during shipment. do not correspond to the information given here. General information 1. Safety precautions: The safety precautions recommended here correspond to basic regulations regarding operation of electrical systems. Plugs and sockets must not be removed from the cable as they are protected against humidity and removing them would destroy their protection.1. Should questions arise. to make changes to the product and to its operation which. without prior warning. can be found in the data sheets attached or in these operating instructions. it might be necessary. Ensure that the safety screw fasteners sit securely on the connectors . losses or damages caused thereby. In order to maintain our technical leadership. Page 24 . under circumstances. Assembly: Only original ABG cables may be used. however. or between any isolated circuit and earth is. voltage transients and overvoltages of short duration. all connections must be made in accordance with VDE regulations or regulations of the area in which the equipment is used. Safety in the event of disturbances: This equipment has been developed and tested for industrial environments. Page 25 . The connecting terminals or connectors must be fitted with a suitable fuse. control and signal cables in separate channels where possible Suppress contactor and relay coils Prerequisite for a disturbing sure mode is a good electrical connection - the machine chassis and housing chassis of the units. The maximum voltage between any two circuits isolated from one another. Fuses: The equipment is fitted with electronic fuses which protect it against wrong polarity. unless otherwise stated. Nevertheless. Connect screened leads to earth at one end only (equipment end) Do not supply other equipment directly from the supply terminals Do not use unused terminals as connections for other equipment between Maximum voltages: Do not exceed the maximum voltages. if not heeded to. (Avoid loops) Lay out load. We would therefore like to point out the following which. microprocessor technology requires careful installation. The voltages specified in the technical data may not be exceeded. can lead to disturbances during the operation later: - Pay attention to the correct polarity of the connections Do not exceed (neither too high nor too low) the specified voltage supply range Protect the equipment with a suitable supply fuse Use cables of adequate current and voltage ratings Use the shortest possible cable paths. All supply cables and terminals must be sized according to the current taken. Further.Wiring and cabling: The wiring and cabling must be correctly carried out in accordance with these instructions. limited to its highest input voltage or the supply voltage. Any attempt to remove faults from equipment that is still installed can be dangerous to personnel and to the system itself. offer adequate protection. In many cases the use of an alarm from within the controller itself does not. Fault clearance Before starting to clear faults make sure that all voltages have been disconnected. It is the responsibility of the user to reconfigure according to the operating conditions of the system. Ask for help Ask your ABG supplier if you have questions concerning the operation and assembly of the equipment. to use an independent alarm unit. Before removing or replacing sensors make sure that the voltage supply has been disconnected. because of its dependence on the system. in which a fault could endanger operating personnel or damage to the system. Alarm supervision In complex systems. Defective equipment should be tested in an area which has been especially built for this purpose. Damages caused by such negligence are not covered by the manufacturer's guarantee. Page 26 . it is advisable. Explosive areas The equipment is not designed for use in explosive areas. Failure to observe the above safety measures can cause breakdown of the equipment or of the system.Configuration: The equipment can be configured by the user. An independent alarm unit provides protection and shut-down of the system in the event of an alarm. All advantages at a glance: Easy handling Safe to false polarity and voltage peaks Supply voltage 10 . Introduction 2. The smallest fraction of a centimer during the laying of asphalt.40 V DC Control modules for Grade and Slope interchangeable Page 27 . but also works successfully on milling machines.2. bulldozers and other construction machines.1 Advantages and specials The Slope Controller S 276 M and the Grade Controller G 176 M are two fully independently working units which can be run separately but also together as a whole system for the automatic control of level. or superfluous extension of the operating time may represent for you the limit between profit and loss. concrete pavers. direction and cross slope. The ABG levelling system is most commonly used to control the screed position of the paver. With the ABG Slope Controller S 276 M you made the right choice. Increasing costs for material and operating time call for precise working at an according capacity per day. The reliable ABG automatic levelling system for the control of your road construction machines. 2. device Order number:13941513 1 6 m connecting cable Order number: 13941604 Page 28 . The S 276 M system consists of the following components: 1 Slope Controller S 276 M.2 Components of the system The components of the system: S 276 M with Handset and 6 m connecting cable. 3 Description of the accessories The accessories mentioned here can be ordered at ABG with their order number. Mounting 3. 3.1 Dimensions of the device The dimensions of the S 276 M Page 29 .2. The slope controller should be mounted in such a way that easy operating of the device is possible.3. To the machine To the controller Attaching of the connecting cable Page 30 .2 Mounting The slope controller S 276 M can be mounted easily and rapidly with simple tools. The slope controller must be mounted at the reference level (for pavers on the screed). Connect the 10 pole socket of the connecting cable to the 10 pole device plug of the machine. Connect the 7 pole socket of the connecting cable to the 7 pole plug of the controller. The fastening plate of the S 276 M has four fastening holes.3 Attaching the connecting cable Set the valve switch to the “STANDBY” position. Attaching of the slope controller The mounting plate of the slope controller 3. After 4 seconds the arrow symbols are on.4. This way of proceeding is important for the zero setting of the controller. The Handset has a LC-Display. If you press the FAST key additional the speed of adjusting will increase. The cross slope can be adjusted up to 15 % to one or to the other side by means of the UP or DOWN keys. working examples and start-up 4. Pressing the RESET key and keeping it pressed shows the symbol of the UP and DOWN arrows which are flashing. Operation. Pressing the UP or DOWN key additional changes the display value without influence to the setpoint.2 The Handset The Handset is used to set the required cross slope in percentage. one tenth of a percentage and one hundredth of a percentage. Page 31 The Handset of the S 276 M .1 The control elements LC-Display Control lamp UP key FAST key Valve switch Control lamp Sensitivity adjustment Selector switch RESET key DOWN key Description of the control elements 4. Pressing the RESET key and keeping it pressed shows the symbol of the UP and DOWN arrows which are flashing. 2. Put the actuator (the screed in case of the finisher) to zero by means of an accurate water level. Switch on the power supply of the machine in order to supply voltage to the level controller. LC-Display Holding knob UP-key FAST-key RESET-key DOWN-key The Handset of the S 276 M 1. Page 32 .4. you must repeat the steps 4 and 5. After 4 seconds the arrow symbols are on. 4. 5. Note: Should one of the two control lamps be on or flash after this setting. Cange the setpoint by the means of the UP or DOWN key until both lamps are off. Press know the UP or DOWN key additional and change the display value to the value 0.3 Zero setting If the level controller is mounted. 3. The following procedure is recommanded for the zero setting only. if the valve switch is positioned to “STANDBY” and if the connecting cable is attached. the controller should be adjusted to “zero”.00. Set the sensitivity adjuster to the middle position. If the slope controller has to be effective on the left side of the machine. Turn the sensitivity button clockwise until the Valve switch hydraulic system starts to swing. Turning the valve switch to the position “ON” Selector connects the output of the controller with the according valve. A counterclockwise rotation decreases the sensitivity. turn the adjuster slowly counterclockwise until the hydraulic system quiets down.5 Setting of the crosse slope and start-up Adjust the required cross slope to the left or to the right by by the means of the UP or DOWN on the Handset. the selector must be switched to the position “R” for right. If the slope controller has to be effective on the right side of the machine. The sensitivity adjuster (loosen the locknut and adjust with a screw driver).4. The counter indicates the cross slope ajusted. Note: A clockwise rotation of the sensitivity adjustment increases the sensitivity of the controller. When this is the case. In case of a deviation between the Setpoint and the actuel slope the lamps are switched on and indicate the direction of travel. The automatic system is activated. seen in the direction of travel.influence the control circuit. If both lamps are out.temperaturesetc. the selector must be switched to the position “L” for left. seen in the direction of travel. The connecting cable must be attached to the corresponding side of the machine. the slope is in the required position. No further adjustment should be needed if the readjustment had been done under working conditions. Page 33 . A minor readjustment of the device may be necessary after the first operation of the plant becausevibrations. The control lamps indicate the functioning of the controller. Remove any asphalt or concrete sticking to the sensor arm by means of an appropriate agent and oil the bearing afterwards. The power supply cables should also be checked regularly in order to detect any damage and dirt. 5. Note: Keep the thread of the plug-connections and of the cable connectors free of any dirt. The electronic components are mounted in a solid case in order to avoid any mechanical damage. Maintenance 5.2 Periodic maintenance Normal repair procedures carried out in the open consist in replacing burned-out lamps and other spare parts that have been located with the troubleshooting. Page 34 .5. grease. asphalt or concrete in order to avoid a bad contact.1 General information The level controller has been designed for high working safety so that the maintenance needs a minimum of procedures only. supply D: Controller output UP E: free F: free G: free Plug on the slope controller 6. Connecting plan.6.1 Pin connections 7 pole device plug: for the connection to the machine Allocation: A: + supply B: Controller output DOWN C: .2 7 pole device plug Block diagram Amplifier Ref. specifications and troubleshooting 6. Transmitter Transmitter lower raise Output The block diagram of the S 276 M Page 35 . 10 %.5 % Accuracy: 0. approx.5 amp. (current limited) Output signal: ON/OFF with pulse width modulation (*NPN) Frequency: 3 Hz approx. approx.6. Page 36 . 10-100 Hz Weight: approx.9 kg Protection type: IP 54 The values given for accuracy and resolution are purely electrical values of the controller. (without valves) Current load: 3 amp. Operating range: +/.01 % Sensitivity: Adjustable from overswinging up to a dead range of 0. 2. Those actually reached also depend from the construction and type of the machine respectively used and of the operating working conditions.02 % Resolution 0.3 Specifications Power supply: 10-40 V DC Operating current: 0.05 % inclination Working temperature range: -10 °C to +60 °C Storage temperature range: -25 °C to +75 °C Vibration: up to 4g. inclination adjustable by 0. It also describes their reasons and the actions to be done in order to eliminate them.4 List of failures and troubleshooting The list of failures and troubleshooting indicates all the failures that are the most likely to occur during the operation of the system.6. Controller does not actuate the valves No voltage avilable for the controller Check the wiring the plant Controller module faulty Replace the module Wiring within housing of the controller faulty Check the wiring Controller module faulty Replace the module Current cable to the controller faulty Replace the cable Cable damaged Check the cable with the ohmmeter Wiring within the housing faulty Check the wiring Lamps are burned-out Replace the lamps Controller module faulty Replace the module Hydraulic system works on only one side. One lamp is on (indicates the direction of the movement) Controller module faulty Replace the module Sensor is faulty Replace the sensor Hydraulic system works but only one lampe is on Lamps are faulty Replace the lamp Hydraulic system works but both lamps remain on Controller module faulty Replace the module Sensitivity of the controller cannot be set Controller module faulty Replace the module Zero offset of the controller in relation to the beam Fastening screws of the sensor bearing got loose Reset the sensor and tighten the screws Controller module faulty Replace the module Sensor is faulty Replace the sensor Handset faulty Replace the Handset Controller module faulty Replace the module Lamps work but controller does not actuate the valves Lamps are not on but controller actuates the valves Percentageindicatedvariesbutcross slope does not change Any control or measurement on the controller should be executed by educated personnel only which has been specially trained for such work. Symptoms: Possible reasons: Action: Lamps are not on. Page 37 . 1 Illustration of the spare parts 2 1 9 Illustration of the spare parts of the S 276 M Page 38 .7. Spare parts 7. 12 14 6 m connecting cable Order number: 13941604 Illustration of the spare parts of the S 276 M Page 39 . 7.2 List of spare parts Pos. Bestellnummer Pos. Order number Bezeichnung 01 02 09 12 14 Handset für S 276 M mit Anschlußkabel Neigungsregler Sensor .LSTA für S 276 M Controlmodul (Standard) Dichtung für Modul 56241888 14258974 13941554 14232771 14232862 Description Page 40 Handset for S 276 M with cable Switch Sensor .LSTA for S 276 M Controlmodule (standard) Gasket for module . .The warranty statement is provided within the manual kit shipped with the machine. VOE21A1004952 CPN 80858814 Printed in Sweden Volvo.Ref. No. Hameln English CST .