This watermark does not appear in the registered version - http://www.clicktoconvert.com Transportation Systems System Description Az S 350 U Microcomputer Axle Counting System (Amended for use on Indian Railways) Date of Amendment: 7th November 2006 M0110044951,B,1 =SBPAC&EDC033 © Siemens AG 2001 All Rights Reserved 2004-09-30 A25552-C605-U1-2-7629-IR Az S 350 U System Description Page 1 of 69 This watermark does not appear in the registered version - http://www.clicktoconvert.com Transportation Systems Confidentiality: Issuing department: None TS RA SD 7 Author of German document Translation released by Translation checked by Translation prepared by Springorum TS RA SD 73 Argiel Dawson Argiel Name TS RA SD 75 TS RA SD 75 TS RA SD 75 Department 2004-09-30 2004-09-29 2004-09-28 Date sgd. Argiel sgd. Dawson sgd. Argiel Signature For the original signatures see Verification Record with the number M0110340606,A. Note The contents of this translation correspond to the German document with the number M0110044940,B. The text following this symbol indicates changes / adaptation of the document for use on Indian Railways to achieve the suppression of trolley wheels, rail dolly, motor trolley, etc. M0110044951,B,1 =SBPAC&EDC033 © Siemens AG 2001 All Rights Reserved 2004-09-30 A25552-C605-U1-2-7629-IR Az S 350 U System Description Page 2 of 69 This watermark does not appear in the registered version - http://www.clicktoconvert.com Transportation Systems Contents 1 1.1 1.2 1.3 1.4 2 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 2.10 2.11 2.12 2.13 2.13.1 2.13.2 2.13.3 2.13.4 Introduction ............................................................................................................5 Principle of Track Vacancy Detection......................................................................6 Principle of Axle Counting........................................................................................7 Wheel Detection Equipment ....................................................................................8 Data Flow between Components...........................................................................10 System Overview .................................................................................................12 Connection to Any Type of Interlocking.................................................................12 Flexible Configuration ............................................................................................13 Procedure-protected Data Transmission...............................................................15 Double Usage of Counting Heads .........................................................................16 Transmission of Operator-specific Information......................................................18 System Compatibility..............................................................................................19 Fail-safety...............................................................................................................20 Easy Configuring....................................................................................................21 Multiple-axle Counting Method ..............................................................................22 Reset Options.........................................................................................................22 Flexible Power Supply............................................................................................25 Maintenance...........................................................................................................25 Applications ............................................................................................................26 Application Variant with One Counting Head per Evaluation Computer ............................................... 26 Application Variant with One Track Vacancy Detection Section and more than One Counting Head27 Application Variant with Two Track Vacancy Detection Sections Detected by One Evaluation Computer......................................................................................................................................................... 27 Application Variant with Two Track Vacancy Detection Sections (Points) and Jointly Used Counting Head................................................................................................................................................................. 28 3 3.1 3.2 3.2.1 3.2.2 3.2.3 3.2.4 3.2.5 3.2.6 3.2.7 3.2.7.1 3.2.7.2 Structure and Mode of Operation of Az S 350 U ..............................................29 System Structure....................................................................................................29 Outdoor Equipment ................................................................................................31 ZP 43 Wheel Detection Equipment ............................................................................................................. 31 DEK 43 Double Wheel Detector .................................................................................................................. 32 Connecting Cables......................................................................................................................................... 32 Trackside Connection Box............................................................................................................................ 32 External Power Supply for ZP 43 (Optional).............................................................................................. 35 Double Usage for ZP 43 (Optional)............................................................................................................. 35 Overvoltage Protection for ZP 43 ................................................................................................................ 35 Overvoltage Protection for ZP 43 E............................................................................................................. 36 Overvoltage Protection for ZP 43 V............................................................................................................. 37 3.3 Indoor Equipment...................................................................................................38 2004-09-30 A25552-C605-U1-2-7629-IR Az S 350 U System Description Page 3 of 69 M0110044951,B,1 =SBPAC&EDC033 © Siemens AG 2001 All Rights Reserved This watermark does not appear in the registered version - http://www.clicktoconvert.com Transportation Systems 3.3.1 3.3.2 3.3.3 3.3.4 Az S 350 U Axle Counting Cabinets ........................................................................................................... 38 Axle Counting Cabinet S25552-J605-U1 ................................................................................................... 39 Axle Counting Cabinet S25552-J605-U2 ................................................................................................... 41 Overview of Boards........................................................................................................................................ 43 4 4.1 4.2 4.2.1 4.2.2 Brief Description of Az S 350 U Boards ............................................................45 VAU Board..............................................................................................................45 STEU Board ...........................................................................................................46 Normal Display................................................................................................................................................ 46 Statistics Functions / Diagnostics ................................................................................................................ 47 4.3 4.4 4.5 4.6 4.7 5 6 7 8 9 10 BLEA12 Board........................................................................................................48 SIRIUS2 Board.......................................................................................................51 VESBA Board.........................................................................................................52 DIGIDO Board ........................................................................................................54 SVK2150 Board......................................................................................................55 Diagnostics / Maintenance..................................................................................56 Standards and Guidelines...................................................................................59 Technical Data......................................................................................................60 Contact ..................................................................................................................64 References ............................................................................................................65 List of Abbreviations ...........................................................................................66 List of Figures......................................................................................................68 M0110044951,B,1 =SBPAC&EDC033 © Siemens AG 2001 All Rights Reserved 2004-09-30 A25552-C605-U1-2-7629-IR Az S 350 U System Description Page 4 of 69 This watermark does not appear in the registered version - http://www.clicktoconvert.com Transportation Systems 1 Introduction The safety of rail operations is based on the safety of many individual components. This is ensured by the use of signalling and safety systems and devices that interoperate smoothly. Track vacancy detection systems provide reliable information on the clear and occupied states of track sections and thus make a decisive contribution towards virtually trouble-free operation. This System Description describes the Az S 350 U microcomputer axle counting system from Siemens (referred to as Az S 350 U in the following). The microcomputer axle counting system offers outstanding costeffectiveness, compactness and easy extendibility of functions. It provides a universal interface for connection to any interlocking system. The interface is a parallel interface using floating relay contact outputs and optocoupler inputs. This document describes the system base and is thus not application-specific. M0110044951,B,1 =SBPAC&EDC033 © Siemens AG 2001 All Rights Reserved 2004-09-30 A25552-C605-U1-2-7629-IR Az S 350 U System Description Page 5 of 69 This watermark does not appear in the registered version - http://www.clicktoconvert.com Transportation Systems 1.1 Principle of Track Vacancy Detection Automatic track vacancy detection systems provide continuous and reliable information on the clear and occupied states of points, crossings or track sections and supply the necessary output information in the form of binarycoded electric signals (yes / no statements). There are different track vacancy detection systems in use for vacancy / occupancy detection on railway lines. The decision on which is the most efficient system in a special case depends on technical and economic criteria. Technical criteria of decisive importance are the topography of the track (e.g. the number of track vacancy detection sections to be established, length of the sections) and the state of the track (e.g. ballast, insulating capacity of the permanent way, type of sleeper). There are two different technical systems in use: · Track circuits Track circuits transmit electric energy from a transmitter to a receiver via the two insulated rails of a track section. While current is flowing (i.e. if no train uses the track section), a track section is indicated as being clear. If the track section is occupied or used by a train, the circuit is short-circuited via the vehicle axles and the current does not reach the receiver. · Axle counting systems Axle counting systems are based on the principle of axle counting. There are counting heads at the beginning and end of each track section to be detected. These units are connected to an evaluation computer which processes the information generated by the counting heads. If the number of axles counted in matches that counted out, the respective track section is indicated as being clear. Axle counting systems can be used for points, crossings and station and open-line tracks. M0110044951,B,1 =SBPAC&EDC033 © Siemens AG 2001 All Rights Reserved 2004-09-30 A25552-C605-U1-2-7629-IR Az S 350 U System Description Page 6 of 69 This watermark does not appear in the registered version - http://www.clicktoconvert.com Transportation Systems 1.2 Principle of Axle Counting Axle counting systems are based on the principle illustrated below: TVDS ZP 43 wheel detection equipment (double wheel detector TCB and TCB incl. cable) ZP 43 wheel detection equipment TCB (double wheel detector and TCB incl. cable) Outdoor equipment Indoor equipment Evaluation computer Generates axle counting data from WDE signals, compares axle counting results and issues a track clear or occupied indication TCB = Trackside connection box WDE = Wheel detection equipment TVDS = Track vacancy detection section Fig. 1 Principle of axle counting Az S 350 U is employed for the automatic detection of open-line tracks (block sections) and station tracks (routes). The clear and occupied states of track vacancy detection sections (TVDS) and points are detected. Az S 350 U includes ZP 43 wheel detection equipment (counting heads). The counting heads are installed at the limits of a track vacancy detection section. Each counting head comprises a double wheel detector (two transmitter and two receiver sections) and a trackside connection box which together form a single functional unit. Any wheels using the track section are detected by the double wheel detector mounted on a rail. The evaluation computer · · · evaluates the signals transmitted from the counting heads, compares the number of axles counted into a track vacancy detection section with the number of axles counted out, monitors the track vacancy detection sections and generates a track clear or occupied indication. M0110044951,B,1 =SBPAC&EDC033 © Siemens AG 2001 All Rights Reserved 2004-09-30 A25552-C605-U1-2-7629-IR Az S 350 U System Description Page 7 of 69 This watermark does not appear in the registered version - http://www.clicktoconvert.com Transportation Systems Compared with track vacancy detection via track circuits, the use of an axle counting system permits the detection of much larger track sections. Az S 350 U can also be used for track vacancy detection on lines where trains come to a halt. The evaluation computer is able to identify axles oscillating over a double wheel detector, thus avoiding any counting errors. 1.3 Wheel Detection Equipment Rx1 Tx1 Rx2 Tx2 Connecting cables Generator 43 kHz DEK 43 Receiving amplifier Filter Amplifier VDC ZP 43 DC DC Voltage converter Rectifier V f V f Voltage-frequency converter Band-pass filter V DC T Signalling cable, paired or star-quad VDC Vf1 Vf2 f1 f2 TCB Evaluation computer Key: DEK 43 = Double wheel detector Rx1, Rx2 = Receivers T = Transformer TCB = Trackside connection box Tx1, Tx2 = Transmitters VDC Vf1 = Vf2 = ZP 43 = = Supply voltage Signal voltage f1 Signal voltage f2 Wheel detection equipment Fig. 2 Block diagram of the ZP 43 wheel detection equipment The ZP 43 wheel detection equipment operates according to the proven method of electromagnetic wheel detection. When a wheel enters the sensing range of the double wheel detector, it modifies the strength of the alternating electromagnetic field, thereby generating pulses. These pulses are transmitted via cable to the evaluation computer located in the interlocking. M0110044951,B,1 =SBPAC&EDC033 © Siemens AG 2001 All Rights Reserved 2004-09-30 A25552-C605-U1-2-7629-IR Az S 350 U System Description Page 8 of 69 This watermark does not appear in the registered version - http://www.clicktoconvert.com Transportation Systems When a wheel enters the sensing range of the double wheel detector, the magnetic coupling between the transmitter and receiver increases. Consequently, the induced voltage in the receiving coil increases. The receive voltages are transmitted via the connecting cable to the two receiving amplifiers in the trackside connection box. After filtering, the amplitude of the interference-free receive signals is raised to the appropriate level in the downstream amplifier and the signals are rectified. Up to this point, both channels operate identically. The voltage-frequency converter generates a square-wave voltage whose frequency depends on the amplitude of the rectified receive voltages. The downstream band-pass filters only let the fundamental wave of this square-wave voltage pass. This corresponds to the idle state of the system (no wheel within the sensing range of the double wheel detector). If a wheel enters the sensing range of the double wheel detector, the increased magnetic coupling between transmitter and receiver makes the receive voltage rise above the quiescent voltage (voltage when no wheels are passing). The voltage-frequency converter reacts by increasing the frequency beyond the upper band limit of the band-pass filter. The band-pass filter attenuates the signal. This corresponds to the occupied state of the double wheel detector. The subsequent transformer combines the signals of both channels and feeds them into the signalling cable. In addition, the transformer separates the supply voltage received from the interlocking from the signals to be transmitted to the evaluation computer. M0110044951,B,1 =SBPAC&EDC033 © Siemens AG 2001 All Rights Reserved 2004-09-30 A25552-C605-U1-2-7629-IR Az S 350 U System Description Page 9 of 69 This watermark does not appear in the registered version - http://www.clicktoconvert.com Transportation Systems 1.4 Data Flow between Components Interlocking Indoor equipment OUTPUTS Clear / occupied indications (Cl, ¬Cl), reset restriction (RR), reset acknowledgement (RA), user-defined information (e.g. block information) INPUTS Axle count reset (AzGrT + AzGrH, vAzGrT), user-defined information (e.g block information) Service PC Null modem cable < 15 m (optional) BLEA12 board BLEA12 board BLEA12 board Az S 350 U or Az S (M) 350 T SIRIUS2 board Az S 350 U SIRIUS2 board Az S 350 U SIRIUS2 board Az S 350 U SIRIUS2 board Az S (M) 350 B, Az S (M) 350 M or Az S 350 U FASIT Data transmission via null modem cable £ 30 m Modem Remote Digital double usage FASIT data Modem Modem FASIT data Modem Cable £ 12 m (TTL level) Modem max. CH 5 max. CH 5 max. CH 5 max. CH 5 max. CH 5 R R R R R R R R AzGrH = Auxiliary axle count reset button AzGrT = Axle count reset button CH = Counting head FASIT = Fail-safe single-channel transmission of status information R = Section with remote counting heads (via FASIT) vAzGrT = Preparatory axle count reset button Fig. 3 Data flow between components Az S 350 U transmits the track vacancy detection section data to the interlocking circuits via a parallel interface. Information is transmitted via the BLEA12 board (block input / output board). The process uses floating relay contacts and optocouplers for information input and output. In addition to the dual-channel track clear / occupied indications (CI, ¬CI), a single-channel reset restriction (RR) and reset acknowledgement (RA) are issued for each track vacancy detection section. The process data (passage of a wheel) is collected by the ZP 43 wheel detection equipment, evaluated and transmitted to the VESBA board at two signal frequencies (amplitude and frequency – f1, f2). M0110044951,B,1 =SBPAC&EDC033 © Siemens AG 2001 All Rights Reserved 2004-09-30 A25552-C605-U1-2-7629-IR Az S 350 U System Description Page 10 of 69 Outdoor equipment transmission Remote transmission This watermark does not appear in the registered version - http://www.clicktoconvert.com Transportation Systems In the interlocking, a dual-channel reset is issued via the AzGrT or vAzGrT reset procedure. There is an optional auxiliary axle count reset button (AzGrH) connected via two channels, which, on dual-channel activation, cancels the reset restriction. By means of single-channel activation of the AzGrH button, various statistical and diagnostic functions can be called up. User-defined binary-coded data can be exchanged between systems. This data (e.g. block information) is transmitted from one evaluation computer (EC) to another in transparent form, i.e. there is no evaluation by the respective axle counting system. Information input / output is performed via the BLEA12 board. The FASIT data transmission procedure (fail-safe single-channel transmission of status information) provides the connection between the Az S 350 U systems. The transmission software enables the exchange of safety-related status information between the communication partners. Information is exchanged regularly and in both directions. The FASIT data transmission method connects the Az S 350 U systems via a modem link (any length, restricted only by transmission medium). Over a shorter distance, two Az S 350 U systems may also be connected via a cable (£ 15 m) without modem. The evaluation computer is connected via the SIRIUS2 board. Each Az S 350 U evaluation computer is equipped with a SIRIUS2 (serial computer interface universal) board with two V.24 interfaces for remote data transmission between evaluation computers. When the double-usage function is used, the WDE data of a counting head can be processed by more than one evaluation computer. There are two types of double usage: analogue double usage and digital double usage. A service PC can be connected to the indoor equipment. Data is transmitted via the V.24 interface of the SIRIUS2 board. The connection is established via modem or, as an option, via a null modem cable (£ 15 m). M0110044951,B,1 =SBPAC&EDC033 © Siemens AG 2001 All Rights Reserved 2004-09-30 A25552-C605-U1-2-7629-IR Az S 350 U System Description Page 11 of 69 This watermark does not appear in the registered version - http://www.clicktoconvert.com Transportation Systems 2 System Overview Az S 350 U from Siemens Transportation Systems meets the highly demanding requirements of many main-line and mass transit operators regarding safety, reliability and economic efficiency. Az S 350 U has been designed for main-line, regional and industrial railways as well as light-rail transport systems and offers outstanding costeffectiveness, compactness and easy extendibility of functions. It can be used: · · · · · · on main and secondary lines and in station areas on single- and multiple-track lines on lines with and without a block system with all types of traction and all common vehicle types on track sections of any length for speeds of up to 400 kph 2.1 Connection to Any Type of Interlocking Az S 350 U provides a universal interface for connection to any interlocking system. All inputs and outputs to and from the interlocking circuits are done via a parallel interface using floating relay contact outputs and optocoupler inputs. Az S 350 U transmits the data of the track vacancy detection sections (TVDS) to the interlocking circuits. Information is transmitted via the BLEA12 board (block input / output board). M0110044951,B,1 =SBPAC&EDC033 © Siemens AG 2001 All Rights Reserved 2004-09-30 A25552-C605-U1-2-7629-IR Az S 350 U System Description Page 12 of 69 This watermark does not appear in the registered version - http://www.clicktoconvert.com Transportation Systems 2.2 TVDS A Flexible Configuration TVDS B TVDS C TVDS D CH 1 CH 2 ZP CH 3 CH 4 CH 5 Az S 350 U AzGrT, AzGrH (A) vAzGrT (A) TVDS TVDS A TVDS TVDS D B C (C) (D) Cl, RR, RA (A) (B) AzGrH Auxiliary axle count reset button AzGrT Axle count reset button CH Counting head Cl Clear / occupied indication RA Reset acknowledgement RR Reset restriction TVDS Track vacancy detection section vAzGrT Preparatory axle count reset button Fig. 4 Configuration with one computer One of the key features of the Az S 350 U evaluation computer is its ability to process the signals of up to five directly connected ZP 43 counting heads. Up to four track vacancy detection sections per evaluation computer can be detected. AzGrH AzGrT CH Cl EC RA RR TVDS vAzGrT Auxiliary axle count reset button Axle count reset button Counting head Clear / occupied indication Evaluation computer Reset acknowledgement Reset restriction Track vacancy detection section Preparatory axle count reset button TVDS A TVDS C TVDS F TVDS B TVDS D TVDS E TVDS G CH 1 CH 2 CH 3 CH 1 CH 2 ZP CH 3 CH 4 CH 5 CH 1 CH 2 Example: CH 2 is a "remote" CH of EC 2 CH 3 £ 18 items of information each £ 16 items of information each £ 22 items of information each (e.g. block information) (e.g. block information) (e.g. block information) EC 1 TVDS GFM TVDS EC 2 TVDS TVDS EC 3 GFM AzGrT, AzGrH (A) vAzGrT (A) Cl, RR, RA (A) A TVDS TVDS G B C SIRIUS2 C TVDS TVDS F D E SIRIUS2 G GFM GFM G D E SIRIUS2 Modem (Extension) Data transmission (max. length £ 15 m) Remote data transmission Modem Modem (Extension) Fig. 5 Configuration of an overall system consisting of more than one computer M0110044951,B,1 =SBPAC&EDC033 © Siemens AG 2001 All Rights Reserved 2004-09-30 A25552-C605-U1-2-7629-IR Az S 350 U System Description Page 13 of 69 This watermark does not appear in the registered version - http://www.clicktoconvert.com Transportation Systems Each Az S 350 U can be connected to two other evaluation computers via two serial V.24 interfaces (SIRIUS2 board). The WDE data of up to six “remote” counting heads can be evaluated by interconnecting evaluation computers. “Remote” counting heads are counting heads whose data is transmitted via the serial interfaces of the “adjacent” evaluation computers. For data transmission (without modem), the evaluation computer is connected to its “left-hand” and “right-hand” partners using front connectors. When using modems (remote data transmission), the track vacancy detection section length is unlimited. This permits very long track vacancy detection sections to be detected. By configuring three evaluation computers to form an axle counting system, the signals of up to 15 counting heads can be evaluated in one evaluation computer and up to 12 track vacancy detection sections can be detected. CH 1 CH 5 CH 1 CH 5 CH 1 CH 5 CH 1 CH 5 Az S 350 U Az S 350 U Az S 350 U Az S 350 U (Extension) (Extension) Modem Modem Modem Modem Modem Modem Modem Modem Fig. 6 Cascading of Az S 350 U systems Any number of Az S 350 U systems can be linked by cascading. This permits the evaluation of information from direct neighbours. M0110044951,B,1 =SBPAC&EDC033 © Siemens AG 2001 All Rights Reserved 2004-09-30 A25552-C605-U1-2-7629-IR Az S 350 U System Description Page 14 of 69 This watermark does not appear in the registered version - http://www.clicktoconvert.com Transportation Systems 2.3 Procedure-protected Data Transmission Two Az S 350 U evaluation computers can be linked via the modem connected to each computer (serial V.24 interface). The modem-to-modem connection may be implemented via a copper cable, fibre-optic cable or radiorelay system. Data is exchanged between the modem-connected axle counting systems via the FASIT method. The single-channel bidirectional point-to-point connection allows status information to be transmitted between both evaluation computers. The status data is transmitted in the form of telegrams at a transmission rate of 9,600 bit/s or 1,200 bit/s and is protected by a 64 bit error detection suffix (Hamming distance 9). WDE signals and operator-specific, binary-coded data (user-defined, e.g. block information) as well as status information are transmitted using the FASIT procedure. The behaviour of Az S 350 U for a broken connection is configurable. Either the track section information can be updated or a permanent track occupied indication can be issued on the restoration of data transmission. In the event of a permanent occupied indication, the section must be cleared by an AzGrT operation. In closed transmission systems, the FASIT procedure can be used without any restrictions. EN 50159-1 specifications for operator-provided closed transmission systems rule out the possibility of non-authorised access to the transmission system. M0110044951,B,1 =SBPAC&EDC033 © Siemens AG 2001 All Rights Reserved 2004-09-30 A25552-C605-U1-2-7629-IR Az S 350 U System Description Page 15 of 69 This watermark does not appear in the registered version - http://www.clicktoconvert.com Transportation Systems 2.4 Double Usage of Counting Heads When using the double-usage function, the WDE signals of one counting head are jointly used by two adjacent evaluation computers. This function results in fewer counting heads, ensuring at the same time continuous track vacancy detection. There are three types of double usage: · · · analogue double usage digital double usage double usage via SIRIUS2 board Analogue double usage The connection of a counting head (outdoor equipment) to two evaluation computers (indoor equipment) is called analogue double usage. A supplementary board in the trackside connection box of the counting head permits the analogue WDE signals to be transmitted to both evaluation computers. An additional cable is required between the counting head and the second evaluation computer. Digital double usage For digital double usage of a counting head (outdoor equipment), digitised WDE signals are transmitted between two interconnected evaluation computers (indoor equipment). By interconnecting evaluation computers, the signals of a counting head can also be used by a second evaluation computer. No additional cabling between indoor and outdoor equipment is required for this multiple usage of WDE signals. The following evaluation computers can be interconnected for digital double usage: Sending EC Az S 350 U Az S 350 U Receiving EC Az S 350 U Az S (M) 350 Version B Az S (M) 350 Version M Remark Via internal connector 22 (Az S 350 U) Via internal connector 22 (Az S 350 U) or DIGIDO board (optional) M0110044951,B,1 =SBPAC&EDC033 © Siemens AG 2001 All Rights Reserved 2004-09-30 A25552-C605-U1-2-7629-IR Az S 350 U System Description Page 16 of 69 This watermark does not appear in the registered version - http://www.clicktoconvert.com Transportation Systems Az S (M) 350 Version B Az S 350 B1 Az S 350 B5 Az S (M) 350 Version M Az S (M) 350 Az S 350 U Via DIGIDO board (optional) Not possible, as the sending systems do not generate test pulses Az S 350 U Digital double usage is implemented by connecting a “sending evaluation computer” to a “receiving evaluation computer”. The evaluation computer to which the counting heads are directly connected and which transmits the WDE signals to the receiving evaluation computer is called the “sending evaluation computer”. The “receiving evaluation computer” evaluates the digital WDE signals transmitted by the “sending evaluation computer”. TVDS A TVDS B CH 1 CH 4 CH 3 Three further CH possible (max. 5 CH can be connected) CH 2 CH 5 CH 3 CH 2 CH 1 CH 4 Three further CH possible (max. 4 CH can be connected) 2nd VESBA 5thVESBA Az S 350 U (sending) TVDS Connector 20 Az S 350 U (receiving) TVDS AzGrT, AzGrH (A) vAzGrT (A) A B Connector 22 Connection of CH 5 via digital double-usage function; 5th VESBA board is not required! CH 5 Cl, RR, RA (A) 2 Connector 22 CH 2 is jointly used (signal as TTL level) Length £ 12 m Fig. 7 Digital double usage between two Az S 350 U The counting heads are connected to the “sending evaluation computer” via internal connector 20. Five counting heads can be directly connected to the “sending evaluation computer”. The “sending evaluation computer” and the “receiving evaluation computer” are interconnected using internal connector 22. As an option, the evaluation computers can also be interconnected via the DIGIDO board (see table above). When using the double-usage function, the number of counting heads that can be directly connected to the “receiving evaluation computer” is lower. If, for example, one counting head is jointly used, only a maximum of four counting heads can be directly connected to the “receiving evaluation computer“. This, however, also reduces the number of VESBA boards required. The WDE signals are transmitted at TTL level using a two-core shielded cable (£ 12 m). M0110044951,B,1 =SBPAC&EDC033 © Siemens AG 2001 All Rights Reserved 2004-09-30 A25552-C605-U1-2-7629-IR Az S 350 U System Description Page 17 of 69 This watermark does not appear in the registered version - http://www.clicktoconvert.com Transportation Systems Double usage via SIRIUS2 board WDE signals can also be jointly used by connecting two evaluation computers via a SIRIUS2 board (V.24 interfaces). In addition to the WDE data of up to five directly connected counting heads, this mode of connection permits the WDE information of up to six counting heads of an adjacent evaluation computer to be also used. 2.5 Transmission of Operator-specific Information In addition to WDE and TVDS data, Az S 350 U is able to transmit binarycoded data (operator-specific data, user-defined, e.g. block information) in both directions. The input and output of binary-coded data is performed via the BLEA12 board. If the outputs are not required for track vacancy detection sections, a maximum of 12 user-defined, operator-specific items of information can be transmitted (first pair of BLEA12 boards). If fitted with the maximum possible number of boards (optional second pair of BLEA12 boards), Az S 350 U can transmit up to 24 user-defined binary-coded data items (input / output), provided that no outputs are required for track vacancy detection sections. The table below shows the number of user-defined operator-specific items of information possible (with the optional second pair of BLEA12 boards inserted): Quantity Track vacancy detection sections First pair of BLEA12 boards Total number of userdefined items of information Second pair of BLEA12 boards (optional) Additional user-defined items of information Use of two pairs of BLEA12 boards Total number of userdefined items of information 0 1 2 3 4 12* 10 8 6 4 12 12 12 12 12 24* 22 20 18 16 *Note: With 12 or 24 user-defined operator-specific information items, no TVDS output is possible! M0110044951,B,1 =SBPAC&EDC033 © Siemens AG 2001 All Rights Reserved 2004-09-30 A25552-C605-U1-2-7629-IR Az S 350 U System Description Page 18 of 69 This watermark does not appear in the registered version - http://www.clicktoconvert.com Transportation Systems The information is read in via floating optocoupler inputs and output via floating relay contacts. In an overall evaluation computer system, operator-specific information is transmitted bidirectionally. 2.6 · · · · · System Compatibility Az S 350 U is functionally compatible with the following axle counting systems: Az S 350 U Az S (M) 350 Version B Az S (M) 350 Version M Az S 350 B1 Az S 350 B5 An Az S 350 U evaluation computer is connected to another Az S 350 U evaluation computer using internal connector 22. Az S (M) 350 Version B / M is connected to the Az S 350 U evaluation computer via either internal connector 22 or the DIGIDO board. The Az S (M) 350 Version B and Az S 350 B1 / B5 axle counting systems can be connected to the Az S 350 U evaluation computer using the DIGIDO board only. The redundant reset function of Az S (M) 350 Version B is also implemented in Az S 350 U. This compatibility permits the replacement of Az S (M) 350 Version B by Az S 350 U. Az S 350 U also provides a redundant track clear indication output and reset option for a second (additional) interlocking. M0110044951,B,1 =SBPAC&EDC033 © Siemens AG 2001 All Rights Reserved 2004-09-30 A25552-C605-U1-2-7629-IR Az S 350 U System Description Page 19 of 69 This watermark does not appear in the registered version - http://www.clicktoconvert.com Transportation Systems 2.7 Microcomputer A Fail-safety Process data input Microcomputer B Input Input Data exchange Processor and memory Data exchange Processor and memory Synchronisation Synchronisation Comparison Output Comparison Output Channel 1 Fig. 8 SIMIS 2-out-of-2 configuration Channel 2 Az S 350 U is operated as a fail-safe computer in a 2-out-of-2 configuration on the basis of the proven SIMIS® fail-safe microcomputer system from Siemens. This microcomputer system has been specially developed for all tasks involving fail-safety issues, as they are required, for example, in railway signalling systems. It checks all safety-related indications and processes them using two channels. The SIMIS fail-safe microcomputer system from Siemens comprises two independent microcomputers of identical structure. The microcomputers are supplied with the same input information which, because they run the same programs, process in an identical manner thus generating the desired output information on two channels. M0110044951,B,1 =SBPAC&EDC033 © Siemens AG 2001 All Rights Reserved 2004-09-30 A25552-C605-U1-2-7629-IR Az S 350 U System Description Page 20 of 69 This watermark does not appear in the registered version - http://www.clicktoconvert.com Transportation Systems Only if the output information is the same in the two independent comparators is it output to the follow-on circuitry. A cut-off unit is connected downstream of the comparators for this purpose and de-energises the output circuits if the output data does not agree. The SIMIS system includes test programs which ensure in-time failure detection. The SIMIS on-line test program, SOPP, is a background program with low priority. It is interrupted by an interrupt for processing. SOPP is responsible for continuously checking all SIMIS functions on a channel-bychannel basis. The system's safety is based on the fact that the dual-channel SIMIS principle is applied to all safety-related subsystems. 2.8 Easy Configuring DIP (dual in-line package) configuration switches allow Az S 350 U to be flexibly configured, providing a wide range of applications. The DIP switches are located on the BLEA12 board. The functions of the set DIP switches are determined by the software of the axle counting system. During computer start-up, the system reads the DIP switch positions and performs a plausibility check. If the plausibility check fails, the evaluation computer adopts a safe state. The DIP switches can also be used to perform modifications during operation (e.g. when modifying or extending the system) rapidly and at low cost. The DIP switches provide the following configuration options for example: · · setting of system parameters, such as data transmission and oscillation behaviour output of track clear and occupied indications (Cl and ¬Cl) of up to four detected track vacancy detection sections with additional output of reset restriction (RR) and reset acknowledgement (RA) · · configuring of direction information input of immediate or preparatory axle count reset (by actuating the AzGrT or vAzGrT button) per evaluation computer M0110044951,B,1 =SBPAC&EDC033 © Siemens AG 2001 All Rights Reserved 2004-09-30 A25552-C605-U1-2-7629-IR Az S 350 U System Description Page 21 of 69 This watermark does not appear in the registered version - http://www.clicktoconvert.com Transportation Systems 2.9 Multiple-axle Counting Method The multiple-axle counting method evaluates batches of several axles, thus being less susceptible to faults. The multiple-axle counting method permits trains to pass at a speed of up to vmax = 400 kph with wheel diameters of d ³ 865 mm. With the multiple-axle counting method, the evaluation of more than one axle at a time improves interference suppression and increases the availability of Az S 350 U. 2.10 Reset Options Axle counting systems must allow reset of a track vacancy detection section to the clear state. Two methods are used for resetting the system: · · immediate axle count reset preparatory axle count reset With immediate axle count reset, the track vacancy detection section is immediately indicated as being clear after the axle count reset button (AzGrT) has been pressed, provided that no reset restriction (RR) is active. A reset restriction is active if the last axle registered by the axle counting system has been ‘counted in’. If a reset restriction is active, operation of the AzGrT button has no effect. The reset restriction can be cancelled by a relief operator action using the auxiliary axle count reset button (AzGrH). Subsequently, the track can be given a clear indication by pressing the AzGrT button. Actuation of the AzGrT button must be preceded by track clear proving. The respective procedure is to be specified in the operator regulations. With preparatory axle count reset, the track vacancy detection section in question is not immediately indicated as being clear after pressing the preparatory axle count reset button (vAzGrT). It only causes the axle count of the track vacancy detection section to be reset to 'zero'. A clear indication is issued only after the track vacancy detection section has been subsequently passed by a train. The passage of the train must comply with the relevant railway operator’s regulations. M0110044951,B,1 =SBPAC&EDC033 © Siemens AG 2001 All Rights Reserved 2004-09-30 A25552-C605-U1-2-7629-IR Az S 350 U System Description Page 22 of 69 This watermark does not appear in the registered version - http://www.clicktoconvert.com Transportation Systems The following can be configured for the preparatory axle count reset: · After an axle count reset operation, the train must pass at least two different counting heads in order to establish the clear status for the respective section. · After an axle count reset operation, the train must pass all counting heads at the beginning and end of the track vacancy detection section in order to establish the clear status for the respective section. This may involve several individual train passages. · After an axle count reset operation, the train must pass all counting heads passed during the last train passage in order to establish the clear status for the respective section. Inputs per TVDS Az S 350 U Channel 1 Channel 2 Channel 1 Dual-channel Dual-channel Fail-safe input: AzGrT or vAzGrT Fail-safe input: AzGrT or vAzGrT AzGrH (can cancel RR) AzGrH (can cancel RR) AzGrT only (not for vAzGrT) User-defined binary-coded information, e.g. block information (operator-specific) Outputs per TVDS Az S 350 U Channel 1 Channel 2 Channel 1 Channel 2 Dual-channel Single-channel Fail-safe output: Fail-safe output: clear indication (Cl) occupied indication (¬Cl) User-defined binary-coded information, e.g. block information (operator-specific) Non-fail-safe output: reset restriction (RR) Non-fail-safe output: reset acknowledgement (RA) Fig. 9 Inputs and outputs per TVDS M0110044951,B,1 =SBPAC&EDC033 © Siemens AG 2001 All Rights Reserved 2004-09-30 A25552-C605-U1-2-7629-IR Channel 2 Singlechannel Az S 350 U System Description Page 23 of 69 This watermark does not appear in the registered version - http://www.clicktoconvert.com Transportation Systems In addition to the fail-safe, dual-channel output of clear or occupied indications, AzGrT or vAzGrT operation is input, for each track vacancy detection section, in a fail-safe manner via two channels. The AzGrT or vAzGrT button is electrically isolated from the computer core via floating optocoupler inputs on the BLEA12 board. As different applications use different operating voltages, there is a wide range of possible input voltages. If neither of the AzGrT and vAzGrT buttons are pressed, the input has to be voltage-free. If one of the buttons is pressed, the output directed towards the computer system makes the voltage rise from 0 V to +5 V. Az S 350 U provides terminals for the axle count reset buttons. The operator must connect these terminals to the interlocking circuits. The operator may also request an output about track vacancy detection section resettability to be generated (reset restriction active?). For each of the max. four track vacancy detection sections to be detected by the evaluation computer, a non-fail-safe relay output for the reset restriction can be provided (not with vAzGrT). Cancellation of the reset restriction by means of a dualchannel operation of the AzGrH button can also be provided. The operator has the option to output information on whether the AzGrT or vAzGrT button has been operated successfully. Pressing the axle count reset buttons triggers a reset acknowledgement. Az S 350 U acknowledges the reset operation and this reset acknowledgement is indicated in the interlocking. As the reset acknowledgement is non-vital, it is provided on a single-channel basis (channel 1) as a freely connectable relay contact. The output is permanently through-connected and is only interrupted during AzGrT or vAzGrT operation. The reset acknowledgement is available for each track vacancy detection section to be detected. As this information is only used for indication purposes, it is provided by the BLEA12 board on a single-channel basis. The corresponding output signal switches a freely connectable floating relay contact on channel 2. This contact may be open or closed (both variants possible) as long as there is a reset restriction in the Az S 350 U system. M0110044951,B,1 =SBPAC&EDC033 © Siemens AG 2001 All Rights Reserved 2004-09-30 A25552-C605-U1-2-7629-IR Az S 350 U System Description Page 24 of 69 This watermark does not appear in the registered version - http://www.clicktoconvert.com Transportation Systems 2.11 Flexible Power Supply Az S 350 U can be flexibly adapted to the existing power supply system due to a large input voltage range from 24 V DC to 60 V DC. The SVK2150 power supply board generates the following operating voltages required by Az S 350 U: · · 5 V DC for internal operation 70 V DC for external operation of max. five counting heads As an option, the counting heads can be supplied with power directly from an on-site voltage source via an additional band-pass filter board for external supply (in the ZP 43 wheel detection equipment). 2.12 Maintenance As the hardware components used are highly reliable, the system requires only little maintenance. The front panels of the boards are fitted with light-emitting diodes (LEDs) indicating the status or cause of possible faults of the axle counting system. In addition, the LEDs provide statistical information, e.g. the number of track section occupancies or the number of axles having passed a counting head. With its additional service PC, the system enables maintenance activities to be carried out in a most effective manner. M0110044951,B,1 =SBPAC&EDC033 © Siemens AG 2001 All Rights Reserved 2004-09-30 A25552-C605-U1-2-7629-IR Az S 350 U System Description Page 25 of 69 This watermark does not appear in the registered version - http://www.clicktoconvert.com Transportation Systems 2.13 2.13.1 Applications Application Variant with One Counting Head per Evaluation Computer TVDS A (long track vacancy detection section) Station B Station A ZP 3 CH 1 ZP 3 CH 1 Az S 350 U EC 1 TVDS 10/22* user-defined inf. 12/24* user-defined inf. Az S 350 U EC 2 AzGrT (A) vAzGrT (A) Cl, RR, RA (A) A Modem Remote data transmission Modem * Number of user-defined items of information when using one pair (left figure) or two pairs (right figure) of BLEA12 boards Fig. 10 Application variant with one counting head per evaluation computer for long track vacancy detection sections M0110044951,B,1 =SBPAC&EDC033 © Siemens AG 2001 All Rights Reserved 2004-09-30 A25552-C605-U1-2-7629-IR Az S 350 U System Description Page 26 of 69 This watermark does not appear in the registered version - http://www.clicktoconvert.com Transportation Systems 2.13.2 Application Variant with One Track Vacancy Detection Section and more than One Counting Head TVDS A CH 1 CH 2 ZP CH 3 CH 4 CH 5 ZP 3 CH 1 Az S 350 U Az S 350 U EC 1 TVDS 10/22* user-defined inf. 12/24* user-defined inf. Az S 350 U EC 2 AzGrT (A) vAzGrT (A) Cl, RR, RA (A) A Null modem cable (£ 30 m) * Number of user-defined items of information when using one pair (left figure) or two pairs (right figure) of BLEA12 boards Fig. 11 Application variant with one track vacancy detection section and more than one counting head 2.13.3 Application Variant with Two Track Vacancy Detection Sections Detected by One Evaluation Computer TVDS B TVDS A ZP 3 CH 1 ZP 3 CH 2 ZP CH 3 ZP 3 CH 4 Az S 350 U Az S 350 U EC 1 TVDS TVDS AzGrT (A) vAzGrT (A) Cl, RR, RA (A) A B Application variant with two track vacancy detection sections detected by one evaluation computer Fig. 12 M0110044951,B,1 =SBPAC&EDC033 © Siemens AG 2001 All Rights Reserved 2004-09-30 A25552-C605-U1-2-7629-IR Az S 350 U System Description Page 27 of 69 This watermark does not appear in the registered version - http://www.clicktoconvert.com Transportation Systems 2.13.4 Application Variant with Two Track Vacancy Detection Sections (Points) and Jointly Used Counting Head TVDS A TVDS B ZP 3 CH 1 CH 2 CH 3 ZP 3 CH 4 ZP 3 CH 5 Az S 350 U Az S 350 U EC 1 TVDS TVDS AzGrT (A) vAzGrT (A) Cl, RR, RA (A) A B Fig. 13 Application variant with two track vacancy detection sections (points) and jointly used counting head M0110044951,B,1 =SBPAC&EDC033 © Siemens AG 2001 All Rights Reserved 2004-09-30 A25552-C605-U1-2-7629-IR Az S 350 U System Description Page 28 of 69 This watermark does not appear in the registered version - http://www.clicktoconvert.com Transportation Systems 3 Structure and Mode of Operation of Az S 350 U System Structure TVDS A TVDS B TVDS C TVDS D 3.1 ZP 43 ZP 43 ZP 43 ZP 43 ZP 43 DIGIDO SIMIS Channel 1 STEU SIRIUS2 1st BLEA12 Via modem Null modem cable Internal connector 22 SIMIS Channel 2 STEU VAU VAU 2nd BLEA12 2nd BLEA12 pair 4th BLEA12 Two-core shielded cable Indoor equipment AzGrH AzGrT Cl RA RR TVDS vAzGrT ZP 43 Optional Auxiliary axle count reset button Axle count reset button Track clear / occupied indication Reset acknowledgement Reset restriction Track vacancy detection section Preparatory axle count reset button Wheel detection equipment (counting head) 1st VESBA 2nd VESBA 3rd VESBA 4th VESBA 5th VESBA 1st BLEA12 pair 3rd BLEA12 Az S 350 U Other Az S 350 systems Other Az S 350 U systems Service PC Inputs: AzGrT, vAzGrT; AzGrH Inputs and outputs: Outputs: user-defined Cl, ¬Cl, RR, RA information Fig. 14 Az S 350 U system structure Az S 350 U consists of two main components: · · outdoor equipment indoor equipment The outdoor equipment is the ZP 43 wheel detection equipment (counting head) comprising a double wheel detector and a trackside connection box. Counting heads are installed at the limits of a track vacancy detection section. The indoor equipment consists of the evaluation computer. The process data (passage by a wheel) is acquired by the counting head, evaluated and transmitted to the VESBA board of the evaluation computer. M0110044951,B,1 =SBPAC&EDC033 © Siemens AG 2001 All Rights Reserved 2004-09-30 A25552-C605-U1-2-7629-IR Interlocking Outdoor equipment Az S 350 U System Description Page 29 of 69 This watermark does not appear in the registered version - http://www.clicktoconvert.com Transportation Systems Following electrical isolation, the VESBA board forwards the WDE data via two independent channels. If the signal exceeds a defined limit after bandpass filtering (this is the case if the counting head is not passed – closedcircuit principle), a trigger stage responds and generates a digital "high" signal at the output of this board. In the case of wheel passage or signal failure, a "low" signal is generated. The STEU control and diagnostic board receives the signal data. It temporarily stores the WDE signals and transfers them to the VAU processing and monitoring board. The SIMIS C microcomputers process and evaluate the axle counting data and forward the results to the higher-level interlocking circuits via the BLEA12 input / output board (relay outputs). The SIRIUS2 (serial computer interface universal) board is used to transmit WDE signals between two Az S 350 U. M0110044951,B,1 =SBPAC&EDC033 © Siemens AG 2001 All Rights Reserved 2004-09-30 A25552-C605-U1-2-7629-IR Az S 350 U System Description Page 30 of 69 This watermark does not appear in the registered version - http://www.clicktoconvert.com Transportation Systems 3.2 3.2.1 Outdoor Equipment ZP 43 Wheel Detection Equipment The ZP 43 wheel detection equipment (counting head) is installed at the limits of a track section. It comprises: · · DEK 43 double wheel detector with connecting cables to the trackside connection box (approx. 5 m long, optionally 10 m) trackside connection box The ZP 43 wheel detection equipment is connected to the evaluation computer via two wires of a star-quad railway signalling cable. This cable is used to transmit the WDE signals to the evaluation computer and to supply the counting head with power (if it is not supplied from an external voltage source). The ZP 43 wheel detection equipment has the following main features: · · · · · · · detection of all wheels with dimensions conforming to the German Railway Building and Operation Regulations (EBO) compatibility with all common rail profiles integration of lightning protection elements high mechanical stability reliable operation even with very short detection times (train speeds of up to 400 kph for wheel diameters of 865 mm) fault-free operation at an ambient temperature range from –40°C to +80°C as well as under conditions of ice, snow and humidity (including flooding) immunity to effects of magnetic rail brakes and eddy-current brakes M0110044951,B,1 =SBPAC&EDC033 © Siemens AG 2001 All Rights Reserved 2004-09-30 A25552-C605-U1-2-7629-IR Az S 350 U System Description Page 31 of 69 This watermark does not appear in the registered version - http://www.clicktoconvert.com Transportation Systems 3.2.2 DEK 43 Double Wheel Detector The DEK 43 double wheel detector (IP68) consists of two electronic sensors. Each sensor has a transmitter and a receiver section. The transmitters and receivers of both sensors are accommodated in one housing each. The transmitter housing is located on the outer side and the receiver housing on the inner side of the rail. In order to reduce interference from the rail, e.g. through traction return currents, the transmitter and receiver are provided with a reducing plate on the side facing the rail. The reducing plate is shaped to match the rail profile and extends from the base of the rail across the web to underneath the rail head. The double wheel detector is attached by means of two mushroom-head screws through centred holes in the neutral zone of the rail web. 3.2.3 Connecting Cables Shielded connecting cables are used to connect the double wheel detector and the trackside connection box. The connecting cables have a unilateral permanent connection with the parts of the double wheel detector and form a unit. They are approx. 5 m long (alternatively 10 m). This results in maximum distances between the double wheel detector and the trackside connection box of approx. 4.2 m and approx. 9 m respectively. 3.2.4 Trackside Connection Box Two variants of the trackside connection box are available, variant E (castaluminium housing) and V (plastic housing). Both variants of the trackside connection box are air-tight (IP67) and have a removable, lockable cover. For trackside installation, pipe supports of various heights are available. The connection box is equipped with cable glands of various diameters to allow cables to be led into or brought out of the box. A mounting rack is installed in the trackside connection box. The electronic components required for controlling the double wheel detector and pre-processing the detector information are accommodated on plug-in circuit boards. M0110044951,B,1 =SBPAC&EDC033 © Siemens AG 2001 All Rights Reserved 2004-09-30 A25552-C605-U1-2-7629-IR Az S 350 U System Description Page 32 of 69 This watermark does not appear in the registered version - http://www.clicktoconvert.com Transportation Systems Frequency tuning board 1: Connection for WDE service equipment 2: Lightning protection board (core-to-core) or jumper board 3: Generator board 4: Band-pass filter board or band-pass filter board for external supply f2 6,52 5: Supplementary board for WDE double usage Si1 f1 3,6 0,1 A Fig. 15 Board arrangement of ZP 43 E (cast-aluminium housing) Location 1 2 Used for Plug-in connection for WDE service equipment Lightning protection board or jumper board (for older counting heads) Generator board Band-pass filter board (with / without external supply) Supplementary board Function Commissioning and test measurements Limits overvoltage induced in connecting cable to harmless levels (core-to-core) or replaces lightning protection board (without overvoltage protection) Transmitting generator, conditioning of signals from receiver Band-pass filters, power supply Reserve location for boards required for WDE double usage 3 4 5 M0110044951,B,1 =SBPAC&EDC033 © Siemens AG 2001 All Rights Reserved 2004-09-30 A25552-C605-U1-2-7629-IR Az S 350 U System Description Page 33 of 69 This watermark does not appear in the registered version - http://www.clicktoconvert.com Transportation Systems 1: 2: 3: 4: 5: Wiring backplane including overvoltage protection and tuning components (core-to-core) Connection for WDE service equipment Band-pass filter board or band-pass filter board for external supply Generator board with adjusting controls for signal frequencies Supplementary board for WDE double usage 2 1 3 4 5 Adjusting control for signal frequency 2 (6.52 kHz) Rotary switch (S1) for transmitter frequency (43 kHz) Adjusting control for signal frequency 1 (3.60 kHz) Fig. 16 Board arrangement of ZP 43 V (plastic housing) Adjusting control for signal frequency 2 (6.37 kHz) Adjusting control for signal frequency 1 (3.50 kHz) Location 1 Used for Backplane (double-layer) Function Limits overvoltage induced in connecting cable to harmless levels (core-to-core) and tuning elements (rotary switch S1) for the 43 kHz transmitter frequency Commissioning and test measurements Band-pass filters, power supply Transmitting generator, conditioning of signals from receiver Reserve location for boards required for WDE double usage 2 3 4 5 Plug-in connection for WDE service equipment Band-pass filter board (with / without external supply) Generator board Supplementary board M0110044951,B,1 =SBPAC&EDC033 © Siemens AG 2001 All Rights Reserved 2004-09-30 A25552-C605-U1-2-7629-IR Az S 350 U System Description Page 34 of 69 This watermark does not appear in the registered version - http://www.clicktoconvert.com Transportation Systems 3.2.5 External Power Supply for ZP 43 (Optional) The wheel detection equipment can also be supplied externally with DC voltage or AC voltage. External supply is required if evaluation computer and wheel detection equipment are a great distance apart. In this case, the wheel detection equipment cannot be supplied via the core pair which carries the WDE signals. Power must be supplied via a second core pair or a different cable. It must be uninterruptible. 3.2.6 Double Usage for ZP 43 (Optional) Using a supplementary board (mounting location 5) in the trackside connection box, the analogue WDE signals are provided twice, allowing wheel detection equipment to interoperate with two neighbouring evaluation computers, i.e. double usage of the wheel detection equipment is possible. 3.2.7 Overvoltage Protection for ZP 43 Some users of axle counting systems have particularly high electromagnetic interference, due to atmospheric conditions, e.g. thunderstorms, and technical conditions, such as traction currents. The overvoltage protection units already available in the wheel detection equipment (overvoltage protection in connecting cables – core-to-core) can be supplemented by additional overvoltage protection measures (core-to-earth). When using axle counting systems in regions with frequent thunderstorms, we recommend the installation of an additional core-to-earth overvoltage protection system. This is also recommended when the cable between counting head and interlocking is very long or the cable is routed above ground. The effectiveness of overvoltage protection depends on a good earth connection and is thus restricted at installation sites with poor earthing conditions (e.g. rocky ground). Irrespective of whether or not the additional overvoltage protection system is used, the trackside connection box must always be earthed. Overvoltage protection components are available for both variants of ZP 43 equipment. M0110044951,B,1 =SBPAC&EDC033 © Siemens AG 2001 All Rights Reserved 2004-09-30 A25552-C605-U1-2-7629-IR Az S 350 U System Description Page 35 of 69 This watermark does not appear in the registered version - http://www.clicktoconvert.com Transportation Systems 3.2.7.1 Overvoltage Protection for ZP 43 E Lightning protection module 4 V25131-A1-A282 Block varistor V25131-A1-A403 Retaining clip Basic terminal block C25165-A63-B70 Mounting rail Module holder Fig. 17 Lightning protection unit for ZP 43 E The additional lightning protection components are accommodated in the type 4 lightning protection module and the block varistor. The lightning protection modules are plugged onto basic terminal blocks. The entire assembly is called the lightning protection unit. The basic terminal blocks are locked onto a mounting rail which is mounted to a support in the ZP 43 E wheel detection equipment via a module holder. The lightning protection unit can be retrofitted to existing ZP 43 E wheel detection equipment. The existing cable to the evaluation computer for WDE signal transmission and WDE power supply can be connected to the basic terminal blocks. These terminal blocks are connected to earth or the railway earthing system. If cables for external supply and / or WDE double usage are to be connected, additional lightning protection modules must be provided. M0110044951,B,1 =SBPAC&EDC033 © Siemens AG 2001 All Rights Reserved 2004-09-30 A25552-C605-U1-2-7629-IR Az S 350 U System Description Page 36 of 69 This watermark does not appear in the registered version - http://www.clicktoconvert.com Transportation Systems 3.2.7.2 Overvoltage Protection for ZP 43 V Lightning protection module board Fig. 18 Lightning protection module board in the ZP 43 V trackside connection box The lightning protection elements are accommodated on an additional lightning protection module board. The board is attached to the rear of the wiring backplane in the ZP 43 V trackside connection box. The lightning protection module boards can be retrofitted to existing ZP 43 V wheel detection equipment. The cables to the evaluation computer for WDE signal transmission and WDE power supply as well as for external supply and / or WDE double usage can be directly connected to the lightning protection module board. M0110044951,B,1 =SBPAC&EDC033 © Siemens AG 2001 All Rights Reserved 2004-09-30 A25552-C605-U1-2-7629-IR Az S 350 U System Description Page 37 of 69 This watermark does not appear in the registered version - http://www.clicktoconvert.com Transportation Systems 3.3 Indoor Equipment The evaluation computer is the heart of the Az S 350 U axle counting system. It consists of the proven SIMIS fail-safe microcomputer system from Siemens which is used in many electronic interlockings. As to safety, Az S 350 U complies with the Technical Principles for the Approval of Safety-related Systems for Signalling (Mü 8004) of the German Federal Railways Office (EBA) and is provided with an EBA-authorised safety case. 3.3.1 Az S 350 U Axle Counting Cabinets The cabinets accommodate the required number of evaluation computer mounting frames (EC MF). Optional components such as ventilator subassemblies, compartment bases and terminal modules are installed depending on the cabinet type. The cabinet types are listed in the table below: EC cabinet Siemens code number Cabinet type Dimensions (width x depth x height) S25552-J605-U1 Knürr; type Miracel with door, side panels (optional) 600 x 600 x 2200 mm Max. 6 1 (from 3 EC MF) Possible from < 6 EC MF S25552-J605-U2 Knürr; type Miracel with door, side panels (optional) 600 x 600 x 2200 mm Max. 9 1 (from 3 EC MF) 2 (from 6 EC MF) Possible from < 9 EC MF EC MF (quantity) Ventilator subassembly (quantity) Compartment bases for accessories, optional (use of compartment bases depends on number of EC MF) Terminals Terminals for WDE connection (quantity depends on number of EC MF) - Terminal modules (MOKAU) Terminal blocks for inputs and outputs of BLEA12 (quantity depends on number of EC MF) - Terminal strip Terminal strip (optional) Connection of supply voltage, additional units - Connection of supply voltage, additional units For connecting cable, CH to intermediate distribution rack M0110044951,B,1 =SBPAC&EDC033 © Siemens AG 2001 All Rights Reserved 2004-09-30 A25552-C605-U1-2-7629-IR Az S 350 U System Description Page 38 of 69 This watermark does not appear in the registered version - http://www.clicktoconvert.com Transportation Systems 3.3.2 Axle Counting Cabinet S25552-J605-U1 Fig. 19 Axle counting cabinet S25552-J605-U1 The cabinet type Miracel / 19'' from Knürr corresponding to IEC 297 is used for Az S 350 U. The components such as evaluation computer mounting frames, ventilator subassembly, compartment bases, cabling and terminal strip can be easily installed thanks to a very flexible modular system. The cabinet can accommodate a maximum of six evaluation computer mounting frames. The SIPAC-Inch modular system is used for board installation. The SIPAC-Inch modular system has a standardised and flexible design. It complies with the requirements of the current standards of interlocking and control technology. A ventilator subassembly is required when using more than two evaluation computer mounting frames. The mounting frames in the middle of the cabinet can be replaced with compartment bases to accommodate modems, multiplexers, etc. The mounting frames and compartment bases to be installed in a cabinet are specified on a project-specific basis. M0110044951,B,1 =SBPAC&EDC033 © Siemens AG 2001 All Rights Reserved 2004-09-30 A25552-C605-U1-2-7629-IR Az S 350 U System Description Page 39 of 69 This watermark does not appear in the registered version - http://www.clicktoconvert.com Transportation Systems The counting heads and BLEA12 boards are connected via terminals located on a mounting plate in the lower part of the cabinet. When installing max. three evaluation computer mounting frames in a cabinet, the plate is mounted in the front area of the cabinet. Two mounting plates are required when installing more than three evaluation computer mounting frames. The second mounting plate is installed at the same level as the first one, but is accessible from the rear of the cabinet. Connection of counting heads: Within the cabinet, connecting cables lead from the backplane connectors of the evaluation computer mounting frame to the counting head terminals on the mounting plate. The cable connection to the intermediate distribution rack is made during installation on site. Connection of BLEA12 boards: Within the cabinet, connecting cables lead from the front connectors of the BLEA12 boards to terminal blocks (MOKAU). On the MOKAU modules, there are fuse holders for the outputs of the BLEA12 board. The cable connection from the terminal blocks to the intermediate distribution rack is made during installation on site. The front connectors for connection to the first pair of BLEA12 boards have four optional buttons for connection of the auxiliary axle count reset button (AzGrH) – for each configured track vacancy detection section. The front connectors for the second pair of BLEA 12 boards have no buttons. All modules and cables can be coded and are project-specific. The terminal strip in the lower part of the cabinet is used to provide the supply voltage for the max. six mounting frames and the additional units (e.g. ventilators, modems). All cable shields of the connecting cables are connected to cabinet potential using a contact bar on the rear. M0110044951,B,1 =SBPAC&EDC033 © Siemens AG 2001 All Rights Reserved 2004-09-30 A25552-C605-U1-2-7629-IR Az S 350 U System Description Page 40 of 69 This watermark does not appear in the registered version - http://www.clicktoconvert.com Transportation Systems 3.3.3 Axle Counting Cabinet S25552-J605-U2 Fig. 20 Axle counting cabinet S25552-J605-U2 The cabinet type Miracel / 19'' from Knürr corresponding to IEC 297 is used for Az S 350 U. The components such as evaluation computer mounting frames, ventilator subassembly, compartment bases, cabling and terminal strip can be easily installed thanks to a very flexible modular system. The cabinet can accommodate a maximum of nine evaluation computer mounting frames. The SIPAC-Inch modular system is used for board installation. The SIPAC-Inch modular system has a standardised and flexible design. It complies with the requirements of the current standards of interlocking and control technology. A ventilator subassembly is required when using more than two evaluation computer mounting frames, two ventilator subassemblies are required when using more than five evaluation computer mounting frames. The mounting frames in the middle of the cabinet can be replaced with compartment bases to accommodate modems, multiplexers, etc. The mounting frames and compartment bases to be installed in a cabinet are specified on a projectspecific basis. M0110044951,B,1 =SBPAC&EDC033 © Siemens AG 2001 All Rights Reserved 2004-09-30 A25552-C605-U1-2-7629-IR Az S 350 U System Description Page 41 of 69 This watermark does not appear in the registered version - http://www.clicktoconvert.com Transportation Systems Two variants for connecting counting heads: The first variant permits connection via cables with backplane connectors directly to the intermediate distribution rack. Ready-made connecting cables of different lengths are provided, which are connected to the intermediate distribution rack during on-site installation. For the second variant, the counting head connections are run via an optional terminal strip in the lower part of the cabinet using backplane connectors already during cabinet assembly. The cable connection to the intermediate distribution rack is made cost-effectively during installation on site. Connection of BLEA12 boards: Ready-made connecting cables with front connectors in the required cable lengths permit the BLEA12 boards to be directly and cost-effectively connected to the intermediate distribution rack (different cable variants for the first and the second pair of BLEA12 boards). The front connectors for connection to the first pair of BLEA12 boards have four optional buttons for connection of the auxiliary axle count reset button (AzGrH) – for each configured track vacancy detection section. The front connectors for the second pair of BLEA 12 boards have no buttons. All modules and cables can be coded and are project-specific. All cable shields of the connecting cables are connected to cabinet potential using a contact bar on the rear. M0110044951,B,1 =SBPAC&EDC033 © Siemens AG 2001 All Rights Reserved 2004-09-30 A25552-C605-U1-2-7629-IR Az S 350 U System Description Page 42 of 69 This watermark does not appear in the registered version - http://www.clicktoconvert.com Transportation Systems 3.3.4 Overview of Boards Fig. 21 Front view of Az S 350 U evaluation computer (including slot numbers) The plug-in circuit boards are accommodated in a single-tier mounting frame with wiring backplane. Dummy boards are inserted in free slots for optional boards. The SIRIUS2 (serial computer interface universal) board enables communication between the connected evaluation computers. It provides two serial, bidirectional interfaces for data transmission, each equipped with a V.24 output. The SIRIUS2 board is used on one channel only. All inputs and outputs (CI, ¬CI, AzGrT or vAzGrT, RR, RA, user-defined block information) to and from the interlocking are done via the BLEA12 block input / output board. Two BLEA12 boards (first pair of BLEA12 boards) are required for the dual-channel Az S 350 U, one for channel 1 and one for channel 2. A second, optional pair of BLEA12 boards can be inserted. Each computer channel has a STEU control and diagnostic board, which evaluates the WDE signals received (counting head- and section-specific data). The VAU processing and monitoring board, a CPU board, constitutes the failsafe microcomputer system (SIMIS C computer core). The VAU board provides monitoring and comparator functions for synchronous dual-channel microcomputer operation. M0110044951,B,1 =SBPAC&EDC033 © Siemens AG 2001 All Rights Reserved 2004-09-30 A25552-C605-U1-2-7629-IR Az S 350 U System Description Page 43 of 69 This watermark does not appear in the registered version - http://www.clicktoconvert.com Transportation Systems Each directly connected counting head requires one VESBA amplifier, trigger and band-pass filter board (numbering of counting heads: CH 1 to CH 5). It provides electrical isolation between indoor and outdoor equipment (counting head). The VESBA board splits the signal frequencies f1 and f2 into two independent channels and filters, amplifies, rectifies and evaluates (trigger) the data transmitted from the counting head. The DIGIDO digital double-usage board is used if WDE information is to be jointly used by two evaluation computers. The SVK2150 power supply board provides 5 V for the evaluation computer and 70 V for the counting heads. Az S 350 U consists of the following components: Quantity 1 2 2 2 or 4 0 or 1 0 to 5 0 or 1 1 Short name MF VAU* STEU* BLEA12* SIRIUS2 VESBA DIGIDO SVK2150 Designation Mounting frame Processing and monitoring board Control and diagnostic board Block input / output board Serial computer interface universal board Amplifier, trigger and band-pass filter board Digital double-usage board Power supply board Order no. S25552-C605-U1 S25552-B600-U1 S25552-B601-B1 S25552-B603-D1 S25395-B171-A3 S25552-B604-C1 S25552-B699-U1 S25552-B651-C1 *Computer core: boards for channel 1 and channel 2; at least two BLEA12 boards necessary M0110044951,B,1 =SBPAC&EDC033 © Siemens AG 2001 All Rights Reserved 2004-09-30 A25552-C605-U1-2-7629-IR Az S 350 U System Description Page 44 of 69 This watermark does not appear in the registered version - http://www.clicktoconvert.com Transportation Systems 4 4.1 Brief Description of Az S 350 U Boards VAU Board Processing and monitoring board VGL SPW PAB ANL VGL = Comparator (yellow LED) SPW = Voltage controller (red LED) PAB = Program-controlled shutdown (red LED) ANL = Start-up (red LED) Red button = System reset Fig. 22 Front view of VAU board The two VAU processing and monitoring boards with their 2 MHz 8085 microprocessors are the central circuit boards of the microcomputer system. They have an 8 kB RAM and a 32 kB EPROM. Due to the dual-channel layout of the evaluation computer, there is one VAU board per channel. The VAU board is a SIMIS C CPU board, in which two independent MES80 microcomputers are connected without additional circuits to form a clocksynchronised dual-channel microcomputer system providing SIMIS core functions. Each VAU board monitors and compares the synchronous and identical operation of both microcomputers and, in case of a fault, transmits a switch-off control signal (SCS) in order to disconnect the connected signalling and safety peripherals. After a system reset, the standard sequence of operations starts on the VAU boards. M0110044951,B,1 =SBPAC&EDC033 © Siemens AG 2001 All Rights Reserved 2004-09-30 A25552-C605-U1-2-7629-IR Az S 350 U System Description Page 45 of 69 This watermark does not appear in the registered version - http://www.clicktoconvert.com Transportation Systems 4.2 STEU Board Control and diagnostic board The STEU control and diagnostic board buffers the signals transmitted by the counting heads. Due to the dual-channel layout of the evaluation computer, there is one STEU board per channel. The LEDs on this board display the following: · · normal display: display of the operating states of the four track vacancy detection sections (during operation; operating state display) statistics display (diagnostics): display of operating states for a certain counting head or track vacancy detection section (switchover / selection via AzGrH button) · display after emergency shutdown: display of operating states in case of emergency shutdown 4.2.1 2 x x 0 1 2 x x 0 1 Normal Display 2 3 4 5 6 7 8 9 10 11 Diagn. 2 3 4 5 6 7 8 9 10 11 Diagn. Display TVDS 1 Display TVDS 3 Display TVDS 2 Display TVDS 4 TVDS 4 not configured Display of telegram transmission state STEU 1 Channel 1 (left board) STEU 2 Channel 2 (right board) Lit LEDs 2 x x Lit LEDs 0 - As for LEDs 0 to 5 of TVDS 1 1" 2" 3" 4" 5" 0 1 2 3 4 5 6 7 8 9 10 11 Diagn. 0 - System reset performed, pressing of AzGrT required 1 - Minus axle blocking effective; counting capacity exceeded; undefined counting pulse 2 - Count monitoring 3 - Faulty telegram transmission between evaluation computers or the second evaluation computer is shut down 4 - Reset restriction (RR) effective 5 - Section occupied, axle count not equal to 0 or another LED is on 6 - As for LEDs 0 to 5 of TVDS 1 7" 8" 9" 10 " 11 " Meaning of LEDs for TVDS 1 Meaning of LEDs for TVDS 3 TVDS 4 not configured 7 - LEDs 7 to 9: 8 - Display of telegram 9- transmission state Fig. 23 Front view of STEU board; display of operating states for TVDS 1 to 4 The two STEU boards display the operating states for track vacancy detection sections 1 to 4 (normal display). STEU 1, channel 1 displays TVDS 1 and TVDS 3. STEU 2, channel 2 displays the states of TVDS 2 and TVDS 4. M0110044951,B,1 =SBPAC&EDC033 © Siemens AG 2001 All Rights Reserved 2004-09-30 A25552-C605-U1-2-7629-IR Az S 350 U System Description Page 46 of 69 Meaning of LEDs for TVDS 4 6 - As for LEDs 0 to 5 of TVDS 1 7" 8" 9" 10 " 11 " Meaning of LEDs for TVDS 2 This watermark does not appear in the registered version - http://www.clicktoconvert.com Transportation Systems 4.2.2 Statistics Functions / Diagnostics Select with AzGrH button 2 x x 0 1 2 x x 0 1 LEDs for display of results 2 3 4 5 6 7 8 9 10 11 Diagn. 2 3 4 5 6 7 8 9 10 11 Diagn. LEDs for object selection LEDs for statistics function selection STEU 1 Channel 1 (left board) STEU 2 Channel 2 (right board) Re su lt 2 xx 2 x x 0 1 2 3 4 5 6 7 8 9 10 11 Diagn. Display of result for selected statistics function 0 1 2 3 4 5 6 7 8 9 10 11 Diagn. Display of selected object (CH, TVDS, block information or system information selectable) Display of selected statistics function STEU 1 Channel 1 (left board) STEU 2 Channel 2 (right board) Fig. 24 Front view of STEU board; statistics display For example, the following statistical and diagnostic data can be displayed: · WDE-related data · total number of axles since the last system start-up and number of axles detected by the counting head total number of supply voltage failures since the last system start-up TVDS-related information operating state for a TVDS total number of occupancies since the last system start-up · block information distribution of block information (contents defined by the railway operator) · system information (e.g. software version, software variant) Note For more detailed information, see Az S 350 U Maintenance Instructions; A25552-C605-U1-*-7620. M0110044951,B,1 =SBPAC&EDC033 © Siemens AG 2001 All Rights Reserved 2004-09-30 A25552-C605-U1-2-7629-IR Az S 350 U System Description Page 47 of 69 This watermark does not appear in the registered version - http://www.clicktoconvert.com Transportation Systems 4.3 BLEA12 Board Block input / output board with 12 relay outputs T1 T2 T3 T4 Fig. 25 Front view of BLEA12 board (left); front connector with buttons (right) The BLEA12 board is the input / output interface of Az S 350 U. It has 12 floating relay outputs and 12 floating optocoupler inputs. Inputs and outputs are made via a 48-pin connector on the front panel of the board. The BLEA12 board is a single-channel board. For the dual-channel Az S 350 U, two BLEA12 boards (first pair of BLEA12 boards) are required – for channel 1 and channel 2. A maximum of four track clear / occupied indications (non-equivalent and equivalent) with the associated reset restriction (RR) and reset acknowledgement (RA) are output. The remaining inputs and outputs can be used for user-defined, operator-specific information (e.g. block information). If the outputs are not required for track vacancy detection sections, a maximum of 12 user-defined, operator-specific items of information can be implemented. The four buttons (T1 to T4) on the front connector of the first pair of BLEA12 boards permits connection of the AzGrH button. M0110044951,B,1 =SBPAC&EDC033 © Siemens AG 2001 All Rights Reserved 2004-09-30 A25552-C605-U1-2-7629-IR Az S 350 U System Description Page 48 of 69 This watermark does not appear in the registered version - http://www.clicktoconvert.com Transportation Systems The relay output concept provides for dual-channel output of the track clear and occupied indications, which can be configured as a normally open contact chain or a normally closed contact chain: Channel 1 C1 C2 Channel 2 C3 C4 Non-equivalent output Channel 1 Channel 2 C1 C2 C3 C4 Equivalent output Fig. 26 Output variants for track clear / occupied indications In the dual-channel Az S 350 U, four relays contribute to each fail-safe output (track clear / occupied indications and user-defined, operator-specific information). M0110044951,B,1 =SBPAC&EDC033 © Siemens AG 2001 All Rights Reserved 2004-09-30 A25552-C605-U1-2-7629-IR Az S 350 U System Description Page 49 of 69 This watermark does not appear in the registered version - http://www.clicktoconvert.com Transportation Systems Interlocking Indications: clear / occupied e.g. relay circuit Az S 350 U BLEA12 board V = 60 V DC Channel 2 V 0V Fig. 27 Example of a relay circuit with double-cut The outputs have to be linked and evaluated by the higher-level interlocking system, i.e. they have to be checked as to their equivalence or nonequivalence, depending on the configuration. M0110044951,B,1 =SBPAC&EDC033 © Siemens AG 2001 All Rights Reserved 2004-09-30 A25552-C605-U1-2-7629-IR Channel 1 Az S 350 U System Description Page 50 of 69 This watermark does not appear in the registered version - http://www.clicktoconvert.com Transportation Systems 4.4 SIRIUS2 Board Serial computer interface universal board SST 2 1 9 1 9 SST 1 Fig. 28 Front view of SIRIUS2 board (left), front connectors with sockets For controlling the transmission system (data transmission between evaluation computers), Az S 350 U has a SIRIUS2 board. The SIRIUS2 board provides two bidirectional serial interfaces (SST 1 / SST 2), each equipped with a V.24 output. Interface SST 1 has two control signals (RTS1 and CTS1). The SIRIUS2 board contributes to fail-safety by providing reliable electrical isolation between peripherals and hardware core. For the transmission of failsafe data, the procedure-protected data transmission procedure FASIT (failsafe single-channel transmission of status information) is used. On the front panel, there is a 48-pin connector providing the connection for all interface signals. An optional front connector with two 9-pole sub-D sockets is used for modem connection. A service PC can be directly connected via a two-pole diagnostic socket. M0110044951,B,1 =SBPAC&EDC033 © Siemens AG 2001 All Rights Reserved 2004-09-30 A25552-C605-U1-2-7629-IR Az S 350 U System Description Page 51 of 69 This watermark does not appear in the registered version - http://www.clicktoconvert.com Transportation Systems 4.5 VESBA Board Amplifier, trigger and band-pass filter board Counting head fuse (0.2 A) Si 1 Counting head (systems 1 and 2 of double wheel detector) System 1 LED (yellow) lights up if system 1 of double wheel detector is being passed or is occupied (or V1 < 1.3 V DC) Potentiometer for voltage adjustment V1 = 3.0 V DC ± 0.10 V Measuring socket for signal frequency f1 = 3.60 kHz ± 0.05 kHz (frequency adjusted at CH) Measuring socket for voltage V1 = 3.0 V DC ± 0.10 V 0 V measuring sockets for both systems System 2 Measuring socket for signal frequency f2 = 6.52 kHz ± 0.10 kHz (frequency adjusted at CH) Measuring socket for voltage V2 = 3.0 V DC ± 0.10 V LED (yellow) lights up if system 2 of double wheel detector is being passed or is occupied (or V2 < 1.3 V DC) Potentiometer for voltage adjustment V2 = 3.0 V DC ± 0.10 V .. U 0,2A F/U 0V .. U F/U Fig. 29 Front view of VESBA board The functions of the VESBA amplifier, trigger and band-pass filter board are as follows: · · connection of ZP 43 E / V wheel detection equipment (counting heads) supply of power (from SVK2150) to counting heads The counting head is connected to Az S 350 U via a two-core cable. There are additional outputs on the VESBA board allowing set-up of a digital doubleusage interface. The VESBA board provides electrical isolation between outdoor equipment (counting head) and indoor equipment. The VESBA board splits the signal frequencies f1 and f2 into two independent channels and filters, amplifies, rectifies and evaluates (trigger) the signals transmitted from the counting head. M0110044951,B,1 =SBPAC&EDC033 © Siemens AG 2001 All Rights Reserved 2004-09-30 A25552-C605-U1-2-7629-IR Az S 350 U System Description Page 52 of 69 This watermark does not appear in the registered version - http://www.clicktoconvert.com Transportation Systems On the front panel, there are measuring sockets for fault diagnostics as well as LEDs for displaying the state of passage and a potentiometer for adapting to different cable lengths and setting the transmission level. When the yellow LEDs on the front panel light up, they indicate that a train is passing the trackinstalled wheel detector. In normal operation, these LEDs light up for a brief period depending on the train speed. The counting heads are protected via fuse Si 1, which is mounted directly on the front panel, and another fuse on the printed circuit board. M0110044951,B,1 =SBPAC&EDC033 © Siemens AG 2001 All Rights Reserved 2004-09-30 A25552-C605-U1-2-7629-IR Az S 350 U System Description Page 53 of 69 This watermark does not appear in the registered version - http://www.clicktoconvert.com Transportation Systems 4.6 DIGIDO Board Digital double-usage board Fig. 30 Front view of DIGIDO board The optional DIGIDO board is used to connect Az S 350 U to other Az S 350 systems for digital double usage of counting heads. Using the DIGIDO board, it is possible to transmit the WDE data of an Az S 350 U (sending EC) to an Az S (M) 350 Version B / M (receiving EC) for joint usage of the digital WDE data. For other applications, see Section 2.4 “Double Usage of Counting Heads” on page 16. The DIGIDO board performs two functions: · The digital WDE signal (TTL level) coming from the VESBA board (Az S 350 U) is inverted, decoupled via an optocoupler and forwarded to the STEU board of the Az S (M) 350 Version B / M via an IMA module. · The digital axle signal (TTL level) coming from the VESTI board (Az S (M) 350 Version B / M) is inverted, decoupled via an optocoupler and forwarded to the STEU board of the Az S 350 U. M0110044951,B,1 =SBPAC&EDC033 © Siemens AG 2001 All Rights Reserved 2004-09-30 A25552-C605-U1-2-7629-IR Az S 350 U System Description Page 54 of 69 This watermark does not appear in the registered version - http://www.clicktoconvert.com Transportation Systems 4.7 SVK2150 Board Power supply board 12 V 5V 70 V Vin 0,2 AF Yellow LED: 12 V Not used in Az S 350 U Yellow LED: 5 V Computer voltage present Yellow LED: 70 V WDE supply voltage present Yellow LED: Vin Fuse: 0.2 A (fast) I 0 Input voltage present SVK2150 ON/ OFF On/Off switch for power supply board Fig. 31 Front view of SVK2150 board The SVK2150 board transforms the interlocking voltage into controlled voltages (5 V DC for computers, 12 V DC (used for predecessor systems only) and 70 V DC for counting heads). All voltages are monitored by voltage controllers. Input and output voltages are electrically isolated. The SVK2150 power supply board supplies voltage for up to five connected counting heads. It electrically isolates indoor and outdoor equipment. The SVK2150 board is ready for operation when voltage is applied to the switching input. This is indicated by the yellow LED "Vin". When the switch on the front panel is set to "I", the yellow LEDs "5 V" and "70 V" ("12 V" is not used) on the front panel indicate the presence of the voltages. An undervoltage causes the output voltages to be disconnected. In the case of overvoltage, the control-circuit fuse (0.2 A, fast) blows. The unit can then only go back into operation after this fuse has been replaced. If there is no voltage at all, the input fuse on the printed circuit board (8 A fuse; slow-acting) has to be checked. M0110044951,B,1 =SBPAC&EDC033 © Siemens AG 2001 All Rights Reserved 2004-09-30 A25552-C605-U1-2-7629-IR Az S 350 U System Description Page 55 of 69 This watermark does not appear in the registered version - http://www.clicktoconvert.com Transportation Systems 5 Diagnostics / Maintenance Outdoor equipment-related adjustment and control measurements are performed with the help of WDE test equipment. ZP 43 E / V provides a mounting location for this purpose. The equipment is connected via a plug-in connection for diagnostic purposes. In case of failure when rapid and precise fault location is requested, the above-mentioned test equipment has proved to be especially helpful as tests can be performed without having to alter any of the Az S 350 U components, i.e. without disconnecting cables or removing boards. Functional tests can be performed in brief out-of-service periods. Note The test equipment may only be used by authorised staff according to the operating instructions. In the operating instructions, all measuring and adjusting values are specified. For mounting, commissioning and adjustment, the installation instructions and adjusting instructions apply. The following test equipment is used: · Test adapter board The test adapter board can be used during commissioning and maintenance for testing and adjusting work on the wheel detection equipment. The necessary voltage and frequency measurements can be performed using a commercially available multi-meter. The front panel of the board has measuring sockets arranged in pairs to which the multimeter can be connected. The test adapter board is inserted in the corresponding mounting location in the trackside connection box of the ZP 43 E / V wheel detection equipment. · FTGS / GLS / AZS (PEGA 1211) test set The test set is connected to the wheel detection equipment via the supplied WDE adapter. Being microcomputer-controlled, the test set permits the measurement of AC and DC voltages and frequencies. The test set is easy to use. The user is guided through the menu via keyboard and display. Not provided and used on Indian Railways 2004-09-30 A25552-C605-U1-2-7629-IR Az S 350 U System Description Page 56 of 69 M0110044951,B,1 =SBPAC&EDC033 © Siemens AG 2001 All Rights Reserved This watermark does not appear in the registered version - http://www.clicktoconvert.com Transportation Systems For diagnostic purposes, the Az S 350 U indoor equipment is fitted with LEDs on the STEU board (see Section 4.2.2 “Statistics Functions / Diagnostics” on page 47. It is also possible to connect a service PC to Az S 350 U. Service PC Converter (USB < > serial) Fig. 32 Service PC connected to an Az S 350 U Using the service PC, the information of up to nine evaluation computers can be evaluated. For this purpose, the service PC is connected to the serial interface (SIRIUS2 board) of the evaluation computer. Eight evaluation computers can be serially connected via a converter. The ninth evaluation computer is connected directly to the free serial interface of the service PC. A standard PC is used as the hardware platform. A PC or a laptop can be connected, depending on the environmental conditions on site. The following information of the connected evaluation computers is displayed via the diagnostic software: · · all nine ECs: clear / occupied state of each TVDS one EC at a time: TVDS, CH, axle count, error count Remote diagnostics via modem is also possible with the service PC. The relevant information is transferred to a maintenance centre for analysis by M0110044951,B,1 =SBPAC&EDC033 © Siemens AG 2001 All Rights Reserved 2004-09-30 A25552-C605-U1-2-7629-IR Az S 350 U System Description Page 57 of 69 This watermark does not appear in the registered version - http://www.clicktoconvert.com Transportation Systems maintenance staff. The mode of visualisation is the same as on the service PC on site. Note For evaluation computer maintenance, see Az S 350 U Maintenance Instructions, A25552-C605-U1-*-7620. M0110044951,B,1 =SBPAC&EDC033 © Siemens AG 2001 All Rights Reserved 2004-09-30 A25552-C605-U1-2-7629-IR Az S 350 U System Description Page 58 of 69 This watermark does not appear in the registered version - http://www.clicktoconvert.com Transportation Systems 6 Standards and Guidelines The Az S 350 U axle counting system described in this document meets the requirements of the following standards, as far as applicable to this system: Number, edition Mü 8004 Title German Federal Railways Office: Technical Principles for the Approval of Safety-related Systems for Signalling Electromagnetic compatibility (EMC) - Generic standards - Immunity standard for industrial environments, German version Electromagnetic compatibility (EMC) - Generic standards - Emission standard for industrial environments, German version Railway applications - Electromagnetic compatibility - Emission and immunity of the signalling and telecommunications apparatus, German version EN 50121-4:2000 Classification of environmental conditions Classification of groups of environmental parameters and their severities - Introduction (IEC 60721-3-0:1984 + A1:1987); German version EN 60721-3-0:1993 Quality systems - Model for quality assurance in design / development, production, installation and servicing Classes of climatic conditions: 1k2, 2k2, 3k6 Classes of mechanical conditions: 3M4, 2M2 Comments EN 61000-6-2, VDE 0839 Part 6-2; 2002-08-01 DIN EN 61000-6-4, VDE 0839 Part 6-4; 2002-08-01 DIN EN 50121-4, VDE 0115 Part 121-4; 2001-05-01 EN 60721-3-0; 1994-06-01 DIN ISO 9001 M0110044951,B,1 =SBPAC&EDC033 © Siemens AG 2001 All Rights Reserved 2004-09-30 A25552-C605-U1-2-7629-IR Az S 350 U System Description Page 59 of 69 This watermark does not appear in the registered version - http://www.clicktoconvert.com Transportation Systems 7 Technical Data 32,767 axles per TVDS 5 counting heads, direct connection 6 counting heads, remote connection, including 3 counting heads of left partner system, 3 counting heads of right partner system 4 6.5 km £ 21 km 0 to 4 clear / occupied indications (CI), equivalent or non-equivalent Max. 24 items of operator-specific information (e.g. block information) Reset restriction (RR), non-fail-safe Reset acknowledgement (RA), non-fail-safe All electric and non-electric types £ £ £ £ 400 360 250 220 kph kph kph kph with with with with wheel wheel wheel wheel diameter diameter diameter diameter d³ d³ d³ d³ 865 830 350 300 mm mm mm mm Counting capacity Maximum number of connectable counting heads per computer Maximum number of track sections Typical control distance Control distance with special measures Output information via floating relay contacts Types of traction Speed Wheels Material Diameter ³ 300 mm Width Wheelbase Track Sleepers Ballast resistance Rail profiles Protective device Wood, concrete, steel 0 W to ¥ W P6, S49, S54, S64, UIC60, R65 (others on request) Deflector (optional) ³ 115 mm ³ 700 mm 720 mm on Indian Railways Steel, cast iron ZP 43 E / V wheel detection equipment Operating frequency Attachment of double wheel detector 43 kHz Against rail web between sleepers (over sleeper on request) M0110044951,B,1 =SBPAC&EDC033 © Siemens AG 2001 All Rights Reserved 2004-09-30 A25552-C605-U1-2-7629-IR Az S 350 U System Description Page 60 of 69 This watermark does not appear in the registered version - http://www.clicktoconvert.com Transportation Systems Distance between DEK 43 double wheel detector and trackside connection box Dimensions of trackside connection box (without pipe support cable gland) Ambient temperature range Test voltage WDE supply voltage at counting head Option for external supply at counting head WDE power consumption IP rating (DIN 40 050) Signal frequency f1 3.60 Signal frequency f2 6.52 Cable type 6.37 kHz (detector not passed) 3.50 kHz (detector not passed) Approx. 5 m (optionally 10 m) ZP 43 E: 360 mm x 360 mm x 210 mm ZP 43 V: 241 mm x 241 mm x 174 mm -40°C to +80°C ³ 10 kV DC to rail 30 to 72 V DC 42 to 50 V AC Approx. 2.5 W (without cable losses) DEK: IP68 TCB: IP67 Star-quad, shielded signalling cable Evaluation computer Cabinet system Cabinet dimensions (width x depth x height) Modular system Supply voltage Evaluation computer Tolerance range WDE fuse protection Power consumption (2-out-of-2 computer, without CH) Ambient temperature range Knürr, type Miracel 600 x 600 x 2200 mm Single-tier frame for circuit boards: SIPAC-Inch (19" plug-in modules) Uninterruptible 24 V DC to 60 V DC +20 % / -10 % 200 mA £ 10 W (per TVDS) -25°C to +70°C Outputs for track clear / occupied indications Output contacts Switching voltage Inrush current Continuous current Minimum currents Switching power M0110044951,B,1 =SBPAC&EDC033 © Siemens AG 2001 All Rights Reserved One floating NC or NO contact chain per channel £ 72 V DC £3A £2A 100 mA at 5 V, 10 mA at 10 V, 1 mA at 24 V £ 20 W Az S 350 U System Description Page 61 of 69 2004-09-30 A25552-C605-U1-2-7629-IR This watermark does not appear in the registered version - http://www.clicktoconvert.com Transportation Systems Indications (reset restriction) Switching voltage Inrush current Continuous current Minimum currents Switching power Indications (reset acknowledgement) Switching voltage Inrush current Continuous current Minimum currents Switching power Axle count reset button Input voltage Power consumption One channel with a floating NC or NO contact chain £ 72 V DC £3A £2A 100 mA at 5 V, 10 mA at 10 V, 1 mA at 24 V £ 20 W One channel with a floating NC or NO contact chain £ 72 V DC £3A £2A 100 mA at 5 V, 10 mA at 10 V, 1 mA at 24 V £ 20 W One digital input per channel 21.6 V DC to 72 V DC 0.1 W to 1.1 W Outputs for block information Output contacts One floating NO contact chain per channel, partially also configurable as an NC contact chain Switching voltage Inrush current Continuous current Minimum currents Switching power £ 72 V DC £3A £2A 100 mA at 5 V, 10 mA at 10 V, 1 mA at 24 V £ 20 W Inputs for block information Type of input Input voltage Power consumption One dual-channel digital input per block input Optocoupler 21.6 V DC to 72 V DC 0.1 W to 1.1 W M0110044951,B,1 =SBPAC&EDC033 © Siemens AG 2001 All Rights Reserved 2004-09-30 A25552-C605-U1-2-7629-IR Az S 350 U System Description Page 62 of 69 This watermark does not appear in the registered version - http://www.clicktoconvert.com Transportation Systems Modem transmission system Direction of transmission For axle counting indications For block indications Transmission procedure Transmission rate Transmission reliability Modem – evaluation computer connection Modem – modem connection Telegram Data Stop bit Parity bit Altitude In both directions In both directions Full duplex, asynchronous 9,600 bit/s or 1,200 bit/s Hamming distance = 9, 64 bit error detection suffix Interface as per CCITT recommendation V.24/V.28 and DIN 66020, sheet 1 Two-wire line / fibre-optic cable Byte-oriented 8 bits 1 bit 0 bits 2,000 m above MSL M0110044951,B,1 =SBPAC&EDC033 © Siemens AG 2001 All Rights Reserved 2004-09-30 A25552-C605-U1-2-7629-IR Az S 350 U System Description Page 63 of 69 This watermark does not appear in the registered version - http://www.clicktoconvert.com Transportation Systems 8 Contact Please send your suggestions concerning the improvement of products or documentation directly to: Siemens AG P.O. Box 33 27 D-38126 Brunswick, Germany E-mail:
[email protected] M0110044951,B,1 =SBPAC&EDC033 © Siemens AG 2001 All Rights Reserved 2004-09-30 A25552-C605-U1-2-7629-IR Az S 350 U System Description Page 64 of 69 This watermark does not appear in the registered version - http://www.clicktoconvert.com Transportation Systems 9 Mass transit Railway operator Number of EC 5 8 Number of CH 25 30 Commissioned in 2003 2003 References AKN Eisenbahn AG (AKN), Kaltenkirchen, Germany Stadtwerke München GmbH (SWM), Munich, Germany, - Rotkreuzplatz metro station Tranz Rail, Auckland, New Zealand 3 14 2003 Main-line services Railway operator Number of EC 20 Number of CH 52 Commissioned in 2003 Liuzhou Railway Bureau, Liuzhou City, China, - Linan line Matterhorn Gotthard Bahn AG, Brig, Switzerland, - Furka tunnel Department of Infrastructure, State of Victoria, Melbourne, Australia Rede Ferroviária Nacional (REFER EP), Lisbon, Portugal, - Linha de Cascais line State Railway of Thailand (SRT), Bangkok, Thailand 34 50 2003 28 91 2003/ 2004 2003 20 60 32 128 2004 M0110044951,B,1 =SBPAC&EDC033 © Siemens AG 2001 All Rights Reserved 2004-09-30 A25552-C605-U1-2-7629-IR Az S 350 U System Description Page 65 of 69 This watermark does not appear in the registered version - http://www.clicktoconvert.com Transportation Systems 10 AC Az S 350 U * AzGrH * AzGrT * BLEA12 * CH Cl ¬Cl DC DEK * DIGIDO * DIP EBA * EBO * EC EMC EPROM FASIT LED MACM MF MOKAU * MSL NC NO PS RA RAM RR SCS SIMIS * SIRIUS2 * List of Abbreviations Alternating current Microcomputer axle counting system from Siemens (universal) Auxiliary axle count reset button Axle count reset button Block input / output board with 12 relay outputs Counting head Track clear indication Track occupied indication (inverted track clear indication) Direct current Electronic double wheel detector Digital double-usage board Dual in-line package German Federal Railways Office Railway Building and Operation Regulations Evaluation computer Electromagnetic compatibility Erasable programmable read-only memory Fail-safe single channel transmission of status information Light-emitting diode Multiple-axle counting method Mounting frame Terminal module Mean sea level Normally closed (contact) Normally open (contact) Power supply Reset acknowledgement Random access memory Reset restriction Switch-off control signal Fail-safe microcomputer system from Siemens Serial computer interface universal board M0110044951,B,1 =SBPAC&EDC033 © Siemens AG 2001 All Rights Reserved 2004-09-30 A25552-C605-U1-2-7629-IR Az S 350 U System Description Page 66 of 69 This watermark does not appear in the registered version - http://www.clicktoconvert.com Transportation Systems SOPP * STEU * SVK2150 * T TCB TTL TVDS USB V.24 VAU * vAzGrT * VESBA * VESTI * WDE ZP 43 E / V SIMIS on-line test program Control and diagnostic board Power supply board Transformer Trackside connection box Transistor-transistor logic Track vacancy detection section Universal serial bus Serial interface Processing and monitoring board Preparatory axle count reset button Amplifier, trigger and band-pass filter board Amplifier and trigger board Wheel detection equipment Wheel detection equipment from Siemens with 43 kHz generator frequency, version E (cast-aluminium housing) or version V (plastic housing) M0110044951,B,1 =SBPAC&EDC033 © Siemens AG 2001 All Rights Reserved 2004-09-30 A25552-C605-U1-2-7629-IR Az S 350 U System Description Page 67 of 69 This watermark does not appear in the registered version - http://www.clicktoconvert.com Transportation Systems List of Figures Fig. 1 Fig. 2 Fig. 3 Fig. 4 Fig. 5 Fig. 6 Fig. 7 Fig. 8 Fig. 9 Fig. 10 Fig. 11 Fig. 12 Fig. 13 Fig. 14 Fig. 15 Fig. 16 Fig. 17 Fig. 18 Fig. 19 Fig. 20 Fig. 21 Fig. 22 Fig. 23 Fig. 24 Fig. 25 Fig. 26 Fig. 27 Fig. 28 Fig. 29 Fig. 30 Principle of axle counting .........................................................................................7 Block diagram of the ZP 43 wheel detection equipment.........................................8 Data flow between components.............................................................................10 Configuration with one computer ...........................................................................13 Configuration of an overall system consisting of more than one computer ..........13 Cascading of Az S 350 U systems ........................................................................14 Digital double usage between two Az S 350 U .....................................................17 SIMIS 2-out-of-2 configuration...............................................................................20 Inputs and outputs per TVDS.................................................................................23 Application variant with one counting head per evaluation computer for long track vacancy detection sections ....................................................................................26 Application variant with one track vacancy detection section and more than one counting head.........................................................................................................27 Application variant with two track vacancy detection sections detected by one evaluation computer...............................................................................................27 Application variant with two track vacancy detection sections (points) and jointly used counting head................................................................................................28 Az S 350 U system structure .................................................................................29 Board arrangement of ZP 43 E (cast-aluminium housing)....................................33 Board arrangement of ZP 43 V (plastic housing) ..................................................34 Lightning protection unit for ZP 43 E .....................................................................36 Lightning protection module board in the ZP 43 V trackside connection box.......37 Axle counting cabinet S25552-J605-U1 ................................................................39 Axle counting cabinet S25552-J605-U2 ................................................................41 Front view of Az S 350 U evaluation computer (including slot numbers) .............43 Front view of VAU board........................................................................................45 Front view of STEU board; display of operating states for TVDS 1 to 4...............46 Front view of STEU board; statistics display .........................................................47 Front view of BLEA12 board (left); front connector with buttons (right)................48 Output variants for track clear / occupied indications............................................49 Example of a relay circuit with double-cut .............................................................50 Front view of SIRIUS2 board (left), front connectors with sockets .......................51 Front view of VESBA board ...................................................................................52 Front view of DIGIDO board ..................................................................................54 2004-09-30 A25552-C605-U1-2-7629-IR Az S 350 U System Description Page 68 of 69 M0110044951,B,1 =SBPAC&EDC033 © Siemens AG 2001 All Rights Reserved This watermark does not appear in the registered version - http://www.clicktoconvert.com Transportation Systems Fig. 31 Fig. 32 Front view of SVK2150 board................................................................................55 Service PC connected to an Az S 350 U...............................................................57 M0110044951,B,1 =SBPAC&EDC033 © Siemens AG 2001 All Rights Reserved 2004-09-30 A25552-C605-U1-2-7629-IR Az S 350 U System Description Page 69 of 69