02 Systemdescription ACM200 A6Z00034296029

System Description

Clearguard ACM 200 Axle Counting System

A6Z00034296029/2013-06-05 © Siemens AG, 2013 All rights reserved

System Description Clearguard ACM 200 Axle Counting System Page 1 of 35

Document history Version

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First issue This document is a translation of A6Z00033397454,-

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Document history Version

Release date

Sections changed

Reason

-

See footer

-

First issue This document is a translation of A6Z00033397454,-

Transmittal, reproduction, dissemination and/or editing of this document as well as utilization of its contents and communication thereof to others without express authorization are prohibited. Offenders will be held liable for payment of damages. All rights created by patent grant or registration of a utility model or design patent are reserved.



Contents 1

Information for the user.................................................................................................... user.................................................................................................... 4 Overview ............................................................................ ............................................................................................................................. ................................................. 4 About this document ....................................................................... ........................................................................................................... .................................... 4 Contact to Siemens Siemens......................................................................... ............................................................................................................. .................................... 5

2

System overview ........................................................................... ............................................................................................................... .................................... 6 System overview .............................................................................. ................................................................................................................. ................................... 6

2.1

Efficiency criteria ........................................................................... .............................................................................................................. ................................... 7 Axle counting systems: proven and fail-safe ................................................................... ...................................................................... ... 7 High-reliability, fail-safe computer system ........................................................................ .......................................................................... .. 7 Highly cost-effective track vacancy detection .................................................................. ..................................................................... ... 8 Flexibility for all customer requirements.............................................................................. requirements.............................................................................. 8 Reduced maintenance requirements ............................................................................... .................................................................................. ... 9

2.2

System features ............................................................................. ................................................................................................................ ................................... 9 Flexible protection of track vacancy vacancy detection sections...................................................... 9 Variable combinations for all requirements ...................................................................... ........................................................................ 10 Procedure-protected interconnection of ACMs................................................................. ACMs ................................................................. 11 Connection to most diverse interlockings ........................................................................ .......................................................................... 12 Individual adaptation to existing installation sites ............................................................. 12 Flexible configuration ................................................................................ ........................................................................................................ ........................ 13 Clear diagnostics.................................................................................................. diagnostics............................................................................................................... ............. 16 Variable power supply for all requirements ....................................................................... 18 High availability and high train speeds by multiple-axle counting method........................ 18

3

Structure and and functions.................................................................................................. 19

3.1

Overview of track vacancy detection system .............................................................. 19 Overview ............................................................................ ........................................................................................................................... ............................................... 19

3.2

Mode of operation of ACM 200 .......................................................................... ...................................................................................... ............ 20 Mode of operation ............................................................................ ............................................................................................................. ................................. 20

3.3

Outdoor equipment: structure and functions .............................................................. 22 Wheel detection detection equipment for ACM ACM 200 ........................................................................ .......................................................................... 22

3.4

Indoor equipment: structure and functions ............................................................... ................................................................. .. 24 Axle counter module ....................................................................... ......................................................................................................... .................................. 24 ACM front panel ............................................................................... ................................................................................................................ ................................. 25 Hardware overview ......................................................................... ........................................................................................................... .................................. 27

3.5

Cable distributor and cabling ......................................................................... ........................................................................................ ............... 29 Cable distributor and cabling .............................................................................. ............................................................................................ .............. 29

4

Technical data ................................................................................ ................................................................................................................. ................................. 30 Technical data .................................................................................. ................................................................................................................... ................................. 30

5

Standards.......................................................................... Standards ......................................................................................................................... ............................................... 33 Conformity with with European directives directives and standards ........................................................ 33

6

Indices ............................................................................... .............................................................................................................................. ............................................... 34 List of abbreviations ......................................................................... .......................................................................................................... ................................. 34 List of figures ...................................................................... ..................................................................................................................... ............................................... 35 List of tables ....................................................................... ...................................................................................................................... ............................................... 35



Information for the user

1


Overview Contents of this section

This section contains general information about the contents of this document.

About this document Scope

This document applies to the Clearguard ACM 200 axle counting system in equipment revision level 1. Purpose

This System Description describes the features and functions of the Clearguard ACM 200 axle counting system. The Clearguard ACM 200 axle counting system is a track vacancy detection system which supplies reliable information about the state of track vacancy detection sections (clear / occupied). This System Description presents the design of the axle counting system comprising indoor equipment and outdoor equipment. The features and functions are described application-independently. The Clearguard ACM 200 axle counting system is part of the Clearguard track vacancy detection system product line from Siemens. The axle counting system can be combined with the following electronic wheel detection equipment (also referred to as counting heads (CH)): Clearguard ZP 43 E, Clearguard ZP 43 V, or Clearguard ZP D 43. The Clearguard ACM 200 axle counting system is referred to below simply as ACM 200. The wheel detection equipment variants are referred to below as ZP 43. Target group

This document is directed at technically qualified railway staff. Documentation is part of equipment described

This document is part of the equipment described. It must be kept for the entire lifetime of the equipment. Make this document available to the staff responsible for the activities described. Insert any amendments subsequently received from Siemens into the document.




Supplementary documents

The following documents are also important as supplementary documents: Title

Document number

Standard Design Document Clearguard ACM 200 Axle Counting System

A6Z00034296050

Operating and Service Manual Clearguard ZP 43 E

A6Z08110055889

Operating and Service Manual Clearguard ZP 43 E, German Rail Network (available in German only)

A6Z08110038394

Operating and Service Manual Clearguard ZP 43 V

A6Z08110055839

Operating and Service Manual Clearguard ZP D 43

A6Z00001887496

EC Declaration of Conformity Clearguard ACM 200, C1112005

A6Z00033123935

Table 1

Supplementary documents

Suggestions

Contact us if you have any suggestions on how we can improve this document. In this way, you will benefit all users of this document. We would appreciate receiving your ideas and requests.

Contact to Siemens Address

Siemens AG P.O. Box 33 27 38023 Braunschweig, Germany Tel.: ++49 531 226 0 E-mail: [email protected]



System overview

2

System overview

System overview

Figure 1

ACM 200 axle counting system

Further member of Clearguard product family: ACM 200

ACM 200 is a further axle counting system in the Clearguard track vacancy detection system product family from Siemens. ACM 200 is an automatic axle counting system with modular design. The state-of-the-art axle counting system provides reliable information about clear and occupied track vacancy detection sections and thus makes an important contribution to trouble-free railway operations. ACM 200 can be combined with ZP 43 wheel detection equipment. The system has been designed for a wide range of applications. Fields of application of ACM 200 •

Mainline and regional railways

•

Metros and trams

•

Freight lines and depots

•

Main and secondary lines, station areas, and point areas

•

Single- and multiple-track lines

•

Lines with and without a block system

•

All types of traction

•

All common types of car

•

Track sections of any length

•

Train speeds of up to 400 km/h



System overview 2.1 Efficiency criteria

2.1

Efficiency criteria

Axle counting systems: proven and fail-safe Fail-safe system

ACM 200 protects track vacancy detection sections according to the proven and fail-safe Simis principle. Axle counting evaluation computers using the Simis principle have been distinguished for many years by their use of proven technology. Maximum safety

ACM 200 has been developed according to the safety requirem ents stipulated by the European CENELEC standards for railway applications. Recognized and independent assessors have confirmed that ACM 200 meets the highest safety integrity level, SIL 4, in accordance with the CENELEC standards EN 50126, EN 50128 and EN 50129. As regards safety, ACM 200 complies with the Technical Principles for the Approval of Safety-related Systems for Signaling of the Federal German Railways Office (EBA) and is EBA-approved.

High-reliability, fail-safe computer system Simis principle – fail-safe and highly reliable

The axle counter module (ACM) in ACM 200 is distinguished by a high level of reliability of the hardware used. The ACM includes a computer unit which is designed in accordance with the Simis principle. This computer unit consists of two independent microcomputers of identical design which are identically programmed and work synchronously with each other. The process data is read into each channel in parallel and processed synchronously. The statuses of the process step sequences and the test and output data generated during the process steps are checked for correspondence. Regularly executed test routines continuously check the individual computer channels independent of the process status to ensure that they function correctly. Working principle of 2-out-of-2 configuration

The fail-safe and highly reliable ACM, which works on the Simis principle, has a redundantly designed hardware core with a 2-out-of-2 configuration. With this configuration, two identically designed microcomputers work in a synchronous mode. The Simis computer, consisting of two microcomputers, gives ACM 200 a high-availability working principle.



System overview 2.1 Efficiency criteria

Highly cost-effective track vacancy detection One single module type for cost-effective application

ACM 200 is distinguished by a high level of cost-effectiveness. The modular architecture is based on a standardized platform with one module type being used for all applications, the ACM. The compact ACM has a sturdy metal housing for harsh industrial use, and is quick to install. The universal use of one single module type permits cost-effective and long-term hardware procurement, and reduces the costs of keeping spare parts and possible sources of faults. Switches are used for the purpose of connecting a number of ACMs to a commercially available Ethernet network. Low-cost installation on mounting rail

The ACM is installed on a mounting rail. The latch fixing on the rear of the ACM permits rapid installation by latching into place. This optimized form of installation shortens the commissioning times and reduces on-site installation costs.

Flexibility for all customer requirements Modular architecture for most diverse customer requirements

The axle counting system comprises one or more ACMs. The modular architecture of ACM 200 permits the system to be individually configured to satisfy the most diverse customer requirements. The number of ACMs can be adjusted to the relevant topology depending on the function. Hence, ACM 200 offers the ideal solution for all demanding central and local track vacancy detection applications. Individual operating concepts can be realized cost-effectively. The concept of ACM 200 permits easy extension and modification, thereby ensuring investment security for years to come. Hardware replacement and extension or configuration updates can be carried out in a very short space of time. Short out-of-service periods can be used for this purpose, without interrupting rail operations. Floating relay interface

ACM 200 has a floating relay interface for connection to any type of interlock ing or subsystem, permitting its flexible adaptation to different operating conditions. Existing systems can thus be updated or extended at low cost with the highly cost-effective ACM 200.



System overview 2.2 System features

Reduced maintenance requirements High-reliability, maintenance-free hardware

The highly reliable hardware component, the ACM, ensures that maintenance requirements are kept low. Usage of the maintenance-free ACM means reduced life-cycle costs. As only one module type is used to realize all track vacancy detection applications, the costs of keeping spare parts are minimized. Maintenance without interrupting normal operations

An ACM can be replaced with the power on. The configured data of the ACM can be transferred to a spare ACM simply by removing and then reinserting a programmable connector (ID plug). System components must no longer be switched off and operations no longer be interrupted. LEDs on the ACM permit easy on-site diagnostics. With the integrated and password-protected web site which is accessed via a standard PC, rapid and easy diagnostics are possible. Maintenance costs are reduced, and operational disruptions cleared up significantly faster.

2.2

System features

Flexible protection of track vacancy detection sections Fail-safe clear and occupied indications

The key feature of ACM 200 consists in monitoring individual track vacancy detection sections (TVDS) and evaluating the signals transmitted by wheel detection equipment in order to issue a fail-safe clear or occupied indication. This status information is transmitted via the floating relay interface of the ACM to any interlockings or subsystems. Usage of floating relay interface for additional functions

If one of the two relay interfaces of the ACM is not being used for the output of clear / occupied indications, it can be used for the output of safety-related information (SRI). The information is input via the optocoupler inputs of a partner ACM. Protection of track vacancy detection sections with ZP 43

ACM 200 is combined with ZP 43 wheel detection equipment. The ZP 43 generates an electromagnetic field around the rail (wheel detection according to the transmitter / receiver principle). Any change in the electromagnetic field is detected by the ZP 43 and passed on to ACM 200. The ZP 43 has proven itself over many years and is immune to the influence of magnetic rail brakes and eddy-current brakes. The ZP 43 is a state-ofthe-art product for many fields of application.




Control distance

The control distance between ACM 200 and connected ZP 43 wheel detection equipment is up to 21 km. The relevant conditions and constraints must be observed.

Variable combinations for all requirements Connection of two ZP 43 to one ACM

Two ZP 43 can be connected to an ACM directly and the ACM can monitor two track vacancy detection sections. In the lower part of the ACM front panel, there is an Ethernet interface for the connection of additional ACMs, diagnostics and loading of configuration data. Variable axle counting system by combining ACMs

Figure 2

Combination of a number of ACMs to form an axle counting system

The Ethernet interface of an ACM allows further ACMs to be connected to build up a network of ACMs. A maximum of four further partner ACMs can be connected to each ACM. Modules of ACM 200 or the Clearguard ACM 100 axle counting system can be partner ACMs. Using this 1-plus-4 combination, a total of ten ZP 43, also combined with WSD wheel detectors, can be connected. For the purpose of exchanging wheel signal data, the ACMs are connected to each other via a switch. The 1-plus-4 combination implements the following: •

•

One ACM monitors the wheel signal data from the two directly connected ZP 43. The four partner ACMs monitor the wheel signal data from the eight “remote” ZP 43 or WSD wheel detectors which are connected.




Extension of axle counting system by further 1-plus-4 combinations

Each ACM can be connected to up to four further partner ACMs (in accordance with the principle of the maximum 1-plus-4 combination). Axle counting systems of any size can be formed by this “cascade” arrangement. This variable interconnection of the ACMs permits an axle counting system which is specific to the customer’s requirements to be implemented at low cost.

Procedure-protected interconnection of ACMs Procedure-protected ACM interconnection

For secure transmission of the clear / occupied indications and fail-safe status information, Siemens’ single-channel secure cyclic data transmission procedure, SLC (safety layer cyclic), is used. All ACMs interconnected via the Ethernet interface exchange their status information by means of SLC. ACM interconnection for long track vacancy detection sections

Due to local conditions, track vacancy detection sections may be limited by ZP 43 which are not in the vicinity of the ACM 200 axle counting system. These “remote” ZP 43 must be connected to ACMs which are positioned “locally”. The wheel signal data is transmitted using SLC. Open transmission systems can be used for remote data transmission between interconnected ACMs. In this way, track vacancy detection sections of any desired length can be monitored using ACM 200. Data transmission via open transmission systems

Data can be exchanged between the interconnected ACMs via an open transmission system. Secure transmission of the data is realized by SLC. For the transmission of status information when the distances are larger, modems are used. The modems are interconnected via copper wires in the case of electrical networks, or via fiber-optic cables (FOC) when using optical networks. Data transmission via public telephone networks

If the axle counting data is to be transmitted via public telephone networks, additional measures against unauthorized access must be taken. These measures are described in EN 50159.




Connection to most diverse interlockings Connection to new and existing interlockings

The floating relay interface permits transmission of the data about clear and occupied track vacancy detection sections to a wide range of interlocking systems of any type. ACM 200 can be connected to new and existing electronic and relay interlockings. This relay interface permits flexible use under a wide range of operating conditions. In addition to the clear and occupied indications, ACM 200 can optionally transmit operatorspecific safety-related information (SRI) via the relay interface.

Individual adaptation to existing installation sites Calibration of ACM

Due to application-specific conditions (e.g. different control distances, cable properties), the ACM must be adapted to existing on-site situations. The ACM can be automatically calibrated by pressing the “CAL” button on its front panel. No further checking is required. Commissioning costs are reduced and downtimes are considerably minimized thanks to simplified maintenance. Variable direction reversal of wheel detection equipment

When the wheel detection equipment is installed on site, the mounting location (to the left or right of the track) may have to be changed as compared to the configured location. For flexible adaptation to the prevailing track conditions, the evaluation direction can be individually switched over for each connected set of wheel detection equipment by pressing the “DIR1” and “DIR2” buttons on the ACM front panel. Any necessary modifications during normal operations (e.g. constructional changes or extensions) can thus also be implemented fast and cost-effectively.




Flexible configuration

Figure 3

Integrated web site (configuration view)

Integrated web site for configuration purposes

An integrated web site is available for ACM 200 for configuration purposes. With a standard PC connected, the web site can be called up using a web browser. The integrated web site provides rapid access to the ACMs which are in the axle counting system’s network. An ACM can be selected by inputting its specific IP address. The configuration data is protected against modification by means of a password. The configuration data for the selected ACM can be set using checkboxes, buttons and text boxes on the state-of-the-art graphical user interface. The integrated web site is available in two languages. Configuration using checkboxes, buttons and pull-down menus

Preset configuration data (default data) can be simply modified to suit customer-specific requirements using checkboxes, buttons and pull-down menus.




The following can be configured for the ACM: •

two track vacancy detection sections (TVDS1 and TVDS2)

•

two directly connected (“own”) sets of wheel detection equipment (DS1.1 to DS2.2)

•

four partner ACMs (partner ACMs 1 to 4)

•

•

•

•

•

assignment of the wheel detection equipment to the ACM’s track vacancy detection sections definition of the counting direction of the wheel detection equipment for the track vacancy detection sections two items of safety-related information (SRI) definition of the relay output of the track vacancy detection sections (single- or dualchannel) or output of safety-related information (SRI) definition of a single- or dual-channel axle count reset (reset possible from different places)

•

types of axle count reset (AZG with / without RR, VAZG with / without RR, AZGH)

•

oscillation behavior

•

"pulse detected" indication output

Configuration using text boxes

A large number of additional items of configuration data can be edited via text boxes. The following can be configured for the ACM (examples): •

names for the track vacancy detection sections and wheel detection equipment

•

communication parameters for the ACM and partner ACMs

Flexible configuration of axle count reset types

For ACM 200, the type of axle count reset can be customized using the integrated web site. The following can be configured for each track vacancy detection section: •

immediate axle count reset (AZG) with or without reset restriction (RR)

•

preparatory axle count reset (VAZG) with or without reset restriction (RR)

•

immediate axle count reset (AZG) and preparatory axle count reset (VAZG) in parallel in one track vacancy detection section

Configuration of immediate axle count reset

With immediate axle count reset (AZG), the respective track vacancy detection section is indicated as clear immediately after the axle count reset operation has been executed. The immediate axle count reset (AZG) operation is rejected if a reset restriction is present (when a reset restriction (RR) is configured). A reset restriction is activated if, for example, the last axle counted by ACM 200 in the respective section was an axle counted in. A reset restriction can be canceled by checking the track vacancy detection section (proceed-on-order run or visual inspection) or executing an auxiliary axle count reset (AZGH) operation. Subsequently, the track vacancy detection section can be reset by an axle count reset (AZG) operation.




Configuration of preparatory axle count reset

With preparatory axle count reset (VAZG), the track vacancy detection section in question remains occupied for a certain time after the relevant axle count reset operation has been executed. The track vacancy detection section is not indicated as clear until after a proceed-onorder run with the axles counted in matching those counted out. The requirements for a proceed-on-order run must be stipulated in the relevant railway operator’s regulations. Configuration of parallel immediate and preparatory axle count reset

Both types of axle count reset (AZG and VAZG) can be configured in parallel for each track vacancy detection section. Thus, the immediate axle count reset (AZG) can be implemented as a secondary axle count reset procedure. Flexible configuration of oscillation behavior

ACM 200 can also be used for track vacancy detection on lines where trains come to a halt. Any oscillation of an axle over a ZP 43 is recognized by ACM 200 and does not result in counting errors. This behavior can be flexibly configured for each track vacancy detection section via the integrated web site. "Pulse detected" indication output

The output of a "pulse detected" indication permits the ZP 43 to be flexibly used for nonfail-safe switching functions, for example for throwing points or controlling gates. Thanks to this configuration option, additional systems for auxiliary services are not required on the track. Saving and loading of configuration data

The configuration data specified using the integrated web site is saved in a readable file on the hard disk of a standard PC, or loaded immediately onto the configuring connector (ID plug) of the ACM. A consistency check is carried out on the configuration data. In the event of a deviation, an error message is displayed.




Clear diagnostics

Figure 4

Integrated web site (diagnostic view)

Diagnostics using LEDs on ACM

On-site diagnostics is performed using the LEDs on the front of the ACM. The current status of the ACM can be easily diagnosed by reference to the different coloring of the LEDs. On-site diagnostics using integrated web site

For additional on-site diagnostics, a standard PC with a common web browser can be connected via the Ethernet interface. The integrated web site enables the current status data to be requested via its graphical user interface. The clear display permits optimal support for all maintenance tasks. Remote diagnostics using integrated web site

The integrated web site enables remote diagnostics by dialing into a network (internet, intranet) from any location at any time of day. After a connection has been established to ACM 200 and the IP address of the desired ACM has been input, diagnostics can be performed. The graphical user interface clearly shows status and diagnostic data for the selected ACM by means of a graphic panel and by list displays. Usage of graphic panel for diagnostics

The status information for an ACM is displayed in color on a graphic panel. This provides a rapid overview of the most important items of status information. The following




automatically cyclically updated information and fault indications are displayed on the graphic panel: •

“clear” or “occupied” for the two track vacancy detection sections (TVDS1 and TVDS2) of the ACM

•

number of counted axles

•

statuses of the wheel detection equipment (DS1 and DS2)

•

statuses of the LEDs of the ACM

•

reset of the ACM possible by a mouse click (if configured)

In the event of a fault, the graphic frame and text for the element affected are shown in red. This makes a rapid overview of the information possible. Usage of list displays for diagnostics

Apart from the graphic panel, an overview of numerous item s of status information can additionally be called up in the form of data lists. A list consists of data fields with axle counting-specific and diagnostic information. After a data field has been selected, a text field appears below the list display with further information and instructions on how to proceed for troubleshooting purposes. If desired, it is possible to display only the fault data. This diagnostic data is shown in red. Logging and re-display of status information

The lists displayed using the integrated web site can be logged at definable intervals. The log files can be saved on the hard disk of a connected PC. For later diagnostic purposes, the available log files can be read into the web site again and displayed on it. There is graphical support for making an event-specific selection (made simply on a timebar display) from the log files which have been read in.




Variable power supply for all requirements Variable connection options of ACM 200

The power supply for ACM 200 permits variable adaptation to available supply networks. If a mains supply at 24 V DC is not available for the ACMs’ power supply, different power supply modules are available for optimal adaptation. ACM 200 has reversible protection against overvoltage at 24 V DC mains voltage. In the event of an overvoltage, ACM 200 is switched off. To restart it, the power supply must be briefly disconnected. ACM 200 features reverse polarity protection.

High availability and high train speeds by multiple-axle counting method Multiple-axle counting method for fault-tolerant evaluation

The multiple-axle counting method (MACM) evaluates batches of several axles at a time as a function of the train speed. The evaluation of several axles results in improved interference suppression, and thus increases system availability. Train speeds of up to 400 km/h can be processed with this method.



Structure and functions 3.1 Overview of track vacancy detection system

3

Structure and functions

3.1

Overview of track vacancy detection system

Overview

Safety in rail operations calls for systems which work smoothly together. One of the most important pieces of equipment, the track vacancy detection system, prevents successive moves, protects entries and exits, and reliably indicates to other systems clear and occupied track vacancy detection sections. Axle counting systems are used to indicate whether tracks are clear or occupied. Track vacancy detection using axle counting systems

In axle counting systems, there are wheel detection components (counting heads) at the beginning and end of each track vacancy detection section (TVDS) to be monitored. To determine whether there is a vehicle in a track vacancy detection section, the system compares the number of axles entering it with the number leaving it.

Figure 5

Schematic representation of an axle counting system



Structure and functions 3.2 Mode of operation of ACM 200

3.2

Mode of operation of ACM 200

Mode of operation

ACM 200 is used for the automatic monitoring of open-line and station track s. Clear and occupied indications are transmitted to the interlocking or to subsystems for track sections and points. ACM 200 has the following structure (example):

Figure 6

System structure of ACM 200

ACM 200 consists of two parts: •

outdoor equipment

•

indoor equipment

Outdoor equipment

The outdoor equipment consists of ZP 43 wheel detection equipment which detects passing wheels. The pulses are transmitted via a two-core trackside cable to the ACM 200 axle counting system installed in the interlocking building. A6Z00034296029/2013-06-05 © Siemens AG, 2013 All rights reserved


Structure and functions 3.2 Mode of operation of ACM 200

Indoor equipment

The indoor equipment consists of a combination of partner ACMs. Partner ACMs of ACM 200 and ACM 100 can be combined to form a network. ACM 200 has the following functions: •

•

•

•

evaluation of the signal pulses transmitted by the ZP 43 comparison of the number of axles counted into a track vacancy detection section with the number of axles counted out monitoring of the track vacancy detection sections and output of the clear and occupied indications to the interlocking optional transmission of wheel detection and / or safety-related information (SRI) via an ACM-ACM Ethernet connection

ACM 200 has a 2-out-of-2 computer configuration, based on the f ail-safe Simis principle. The process data (passage of a wheel) is detected by the ZP 43, processed and transmitted to the assigned ACM. The ACM processes and evaluates the wheel detection signals and indicates the results to the interlocking. In addition to the output of clear and occupied indications, it is possible, for each track vacancy detection section, to output a reset restriction (RR) and a reset acknowledgment (RA) on a single channel. The dual-channel immediate (AZG) or preparatory (VAZG) axle count reset is realized as an input from the interlocking. The reset restriction can be canceled from the interlocking using an optional dual-channel auxiliary axle count reset (AZGH) operation. This is also possible directly on the ACM. Connection of ACM 200 to interlocking

ACM 200 is connected to any type of relay or electronic interlocking via the floating r elay interface. The outputs to the interlocking circuits are transmitted via a parallel relay interface with floating relay contacts. The inputs are made through optocoupler inputs. In addition to the dual-channel clear / occupied indications, safety-related information (SRI) can optionally be output. ACM interconnection for “remote” ZP 43

For connection of a “remote” ZP 43, the “local” ACM is linked to the ACM in the interlocking via modems. Data is transmitted via an Ethernet interface.



Structure and functions 3.3 Outdoor equipment: structure and functions

3.3

Outdoor equipment: structure and functions

Wheel detection equipment for ACM 200 ACM 200 combinable with different types of wheel detection equipment

Figure 7

Wheel detection equipment (e.g. ZP D 43)

The outdoor equipment of ACM 200 consists of ZP 43 wheel detection equipment. The following wheel detection equipment variants from the Clearguard product family can continue to be used to keep the migration costs low: •

ZP 43 E

•

ZP 43 V

With ACM 200, it is also possible to replace existing ZP 43 E / V by the successor product, ZP D 43. Features of combinable wheel detection equipment variants

Overview of wheel detection equipment variants: Feature

ZP 43 E / V

ZP D 43

Area of application

Mainline services

Mainline services Mass transit Private and industrial railways

Components

DEK 43 double wheel detector, trackside connection box with aluminum cover (ZP 43 E) or plastic cover (ZP 43 V)

DEK 43 double wheel detector, trackside connection box with aluminum base plate and plastic or aluminum cover

Wheel detection (flangeless wheels)

Wheel detection by an electromagnetic field around the rail

Wheel detection by an electromagnetic field around the rail with improved EMC immunity Interface- and functioncompatible



Structure and functions 3.3 Outdoor equipment: structure and functions

Feature

ZP 43 E / V

Wheel dimensions

Detection of all wheels Detection of all wheels whose dimensions conform whose dimensions conform or largely conform to the to the EBO EBO Adaptation to non-EBOcompliant wheels by a coding plug in the wheel detection equipment

Immunity

Immune to eddy-current brakes

Immune to eddy-current brakes

Mounting

Mounting over the sleeper possible on request

Mounting over the sleeper possible

Commissioning

Manual calibration

Semi-automatic calibration

Table 2

ZP D 43

Overview of combinable wheel detection equipment variants

Reliable detection for trouble-free rail operations

The ZP 43 supplies reliable wheel detection signals for trouble-free rail operations. All wheel detection equipment variants are distinguished by the following main features: •

•

•

•

•

•

high mechanical stability compatible with most common rail profiles up to the maximum permissible level of wear no mechanical adjustment necessary reliable operation with very short wheel detection times at traversal speeds of up to 400 km/h at a wheel diameter of ≥ 830 mm immune to traction return currents, current step changes in the catenary supply, magnetic or electromagnetic interference, interference from signaling equipment operating in the audio-frequency or medium-frequency range and the effects of magnetic rail brakes fault-free operation at ambient temperatures from -40 °C to +80 °C, in icy, snowy and humid conditions and even with brief flooding

•

detection of all wheels whose dimensions conform to the EBO

•

integration of overvoltage protection components possible

Components of wheel detection equipment

The ZP 43 are installed at the limits of a track vacancy detection section. A set of wheel detection equipment consists of the DEK 43 double wheel detector and a trackside connection box (TCB). The trackside connection box accommodates the electronics for evaluation of the wheel pulses. The DEK 43 double wheel detector consists of a transmitter section and a receiver section. The transmitter section is installed on the outer side of the rail and the receiver section on the gage side of the rail. The DEK 43 double wheel detector is connected to the trackside connection box by means of two connecting cables permanently attached to the detector. The cables are optionally 5 m, 10 m or 15 m long. The DEK 43 double wheel detector is bolted to the rail web.



Structure and functions 3.4 Indoor equipment: structure and functions

Mode of operation of wheel detection equipment

The ZP 43 operates according to the principle of electromagnetic wheel detection at a generator frequency of 43 kHz. A wheel entering the effective range of the double wheel detector changes the field strength and lines of force of the alternating electromagnetic field, thus producing signal pulses. These pulses are used to generate axle counts and, from their offset, to determine the direction of travel. ACM 200 is informed about a detected wheel by a change in the AC frequency of the respective detector subsystem. Application variants

The ZP 43 can be used for the following application variants: •

standard usage

•

double usage

•

external supply

ACM 200 supports these modes.

3.4

Indoor equipment: structure and functions

Axle counter module Compact design

The main component of the axle counting system is the axle counter module (ACM). The entire electronics, including the interfaces and control and display elements, is integrated into the ACM. This eliminates time-consuming wiring for connecting functional units. The housing is made of high-grade steel. Installation outside a switchgear cabinet is possible. On its rear, the housing has a latch fixing for rapid installation on a mounting rail. All interfaces on underside of ACM

The electrical connections are located on the underside of the ACM. The majority of all connections are realized through one compact process connector. The following interfaces are combined on the process connector: •

•

•

two fail-safe (dual-channel) relay outputs: the clear and occupied indications are transmitted via floating relay contacts. For the relay output, either an equivalent or a non-equivalent connection can be used. The outputs can optionally be used to output safety-related information (SRI). four fail-safe (dual-channel) optocoupler inputs: for dual-channel evaluation of the immediate (AZG), preparatory (VAZG) and auxiliary (AZGH) axle count reset. The inputs can optionally be used to read in safety-related information (SRI). five single-channel relay outputs for reset restriction (RR), reset acknowledgment (RA) and operational readiness of the ACM (module is OK)

•

two interfaces for ZP 43

•

power supply connection (e.g. system power supply)




The Ethernet interface for connection to other ACMs is located in the lower part of the ACM. A standard PC can also be connected here for configuration and diagnostic purposes. Installation on mounting rail

The ACM is installed by latching onto a 122 mm mounting rail. A large number of ACMs can be rapidly mounted next to each other on the mounting rail in a space-saving way. The mounting rail can also be mounted on a wall. A number of mounting rails can also be combined in racks or cabinets.

ACM front panel Control and display elements on front panel

The integral control and display unit on the ACM front panel permits direct input to the ACM (reset button, cancelation of the reset restriction, calibration, and direction r eversal). There are 13 LEDs on the front panel, which show either a steady or flashing green, yellow or red light. These LEDs give a rapid overview of the operating statuses.




Element

Meaning

A

ID plug

Configuring connector with lettering field

B

“RST” button

Reset button (resets the ACM)

1

“OK” LED

ACM is OK

2, 3

“TVDS1” LED

Status of track vacancy detection section: clear / occupied / faulty

“TVDS2” LED

or Status of SRI: active / inactive

Figure 8

4, 5, 6, 7

“DS1.1” LED

8

“RR1” LED

Reset restriction 1 (RR / button fault)

9

“RR2” LED

Reset restriction 2 (RR / button fault)

10

“COM” LED

Status of communications

11, 12

Button

Button for AZGH (cancelation of the RR)

13

LED, “CAL” button

Calibration of wheel detection equipment

14, 15

LED, “DIR1”, “DIR2” buttons

Direction reversal

16

“SIM1”, “SIM2” sockets

In preparation

17

Fuse F1 0.2 A, F2 0.2 A

Power supply of wheel detection equipment

18

Siemens code number

Field for the identification number of the module

19

RJ45 socket

Ethernet interface

“DS1.2” LED “DS2.1” LED “DS2.2” LED

“RST-RR1”, “RSTRR2”

Status of wheel detection equipment (per detector subsystem and channel): no passing wheel / passing wheel / faulty

ACM front panel: control and display elements




ID plug for configuration data

A programmable configuring connector (ID plug, identity plug) is located in the up per front section of the ACM. The ID plug has a non-volatile memory. The configuration data specific to each ACM is loaded onto the ID plug via the integrated web site. The associated track vacancy detection section can be written on the front of the ID plug. When an ACM is exchanged, the data configured on the ID plug can be transferred to the spare ACM. To do this, the ID plug is simply removed from the old ACM and inserted into the spare ACM. The spare ACM is then immediately ready for use again with the same device configuration, with no configuration effort.

Hardware overview ACM axle counter module

Figure 9

ACM axle counter module

Application •

Fail-safe track vacancy detection with a floating relay interface

•

Connection of two ZP 43 possible

•

For the processing of status information of two track vacancy detection sections




Features •

Housing made of high-grade steel

•

9-pin interface on the front panel for a polarized ID plug with a lettering field

•

Control and display elements on the front panel: −

6 buttons

−

13 multi-color LEDs

−

2 simulation sockets

•

2 fuses for power supply to the wheel detection equipment

•

Industrial Ethernet interface for connection of a CAT5 network cable

•

On the underside: - 96-pin male connector, type C (DIN 41612 / IEC 60603-2) for a compact process connector - 4-pin female connector for the 24 V DC power supply connector

•

Installation by latching onto a 122 mm mounting rail

•

Dimensions (w x h x d): 65 x 175 x 240 mm

•

Weight: 1600 g

Industrial Ethernet switch (optional)

Figure 10

Switch (example)

Application •

For interfacing of ACMs to form an Industrial Ethernet network

•

For connection of a standard PC for configuration and diagnostic purposes



Structure and functions 3.5 Cable distributor and cabling

Features Installation on:

•

−

35 mm mounting rail

−

122 mm mounting rail

−

•

•

•

3.5

walls

Interfaces: 8 RJ45 sockets for connection of ACMs and a standard PC 4-pin terminal block for power supply connection 2-pin terminal block for indication contact connection Indication of the operating states by LEDs Supply voltage: 2 x 24 V DC (18 V to 32 V)

•

Dimensions (w x h x d): 60 x 125 x 124 mm

•

Weight: 780 g

Cable distributor and cabling

Cable distributor and cabling Installation interface between indoor and outdoor equipment

The cable distributor is the installation interface between the indoor and outdoor components. This is where the cables for the outdoor components are connected. From here, further connecting cables lead to the indoor components. A cable termination rack or cabinet can be used as a cable distributor. The connecting cables between ACM 200 and the cable termination rack or cabinet must be shielded. Star-quad or paired signaling cables are used in the outdoor equipment. Earthing and protective measures

When the ACMs are being installed, all conductive housing parts (see SELV circuit, EN 60950) must be earthed for reasons of operator safety. The conductive parts also include the mounting rail. The ACM housing is earthed via the power supply connector. It is recommended that the cables connected to the outdoor equipment are protected against overvoltage by a lightning protection module and a block varistor.



Technical data

4

Technical data

Technical data

Types of traction:

All electric and non-electric types

Wheels:

Material

Steel or cast iron

Diameter

≥ 300 mm

Width

≥ 115 mm

Wheelbase

≥ 600 mm

Traversal speed

Wheel diameter (mm)

Minimum wheelbase

Maximum speed (km/h)

Sum total of both wheel diameters (mm) ≥ 300

600

220

≥ 335

670

250

≥ 600

1200

350

830 to 1250

1660 to 2500

400

Track:

Sleepers

Wood, concrete, steel, ballastless track

Ballast resistance

No effect

Rail profiles

R 65, R 75, S 41,S 45, S 49, S 54, S 64, UIC 60 (others on request)

Protective device

Deflector (optional)

Ambient temperature ranges:

ACM

-40 °C to +70 °C

ZP 43

-40 °C to +80 °C

Connectable ZP 43:

ZP 43

Connection via a two-core cable

Cable type

Star-quad or paired signaling cable

Maximum control distance

Examples of cable at 45 °C

Standard

With additional measures

A-2Y (St)YbY3x4x0.9S (1B 0.3)

7.1 km

14 km



Technical data

A-2Y (St)YbY5x4x1.4S (1B 0.3)

6.5 km

21 km

The maximum signaling cable length must be calculated on a systemspecific basis. The following values must not be exceeded: continuous interference voltage Vint = 250 Vrms 16 ⅔ to 50 Hz transient interference voltage Vcatenary contact = 1500 Vrms (0.1 s) The attenuation per unit length of the cable must not exceed 20.1 dB at the operating frequencies of 3.5 kHz and 6.5 kHz. Max. 23.57 dB are permissible with external supply. Overall loop resistance

The ohmic resistance of the cable must not exceed a maximum overall loop resistance of 412 Ω with supply via ACM 200.

Cable capacitance

The cable capacitance (core to core) of an electrically continuous cable must not be greater than 325 nF.

Rail mounting

Rail web, rail base

Height adjustment

Readjustment depending on the degree of rail wear

Traversal cycle

ZP 43 E / V = 30 days ZP D 43 = once a year

Diagnostics

Local diagnostics via LEDindications and an integrated web site, remote diagnostics possible

Axle counting system:

Counting capacity

32,767 axles per track vacancy detection section Permanently 20 axles per second and ZP 43

Number of max. connectable sets of wheel detection equipment per ACM

2 sets of ZP 43 wheel detection equipment

Number of max. detectable TVDSper ACM

2 track vacancy detection sections

Interconnection of ACMs to form 1plus-4 combination enables max. connection of wheel detection equipment / wheel detectors

Total of 10 sets of wheel detection equipment:

Output information (via floating relay contacts per ACM)

2 fail-safe clear / occupied indications (equivalent or non-equivalent)

2 ZP 43, directly connected to ACM 8 sets of wheel detection equipment connected to partner ACMs, ZP 43 or WSD wheel detectors

Reset restriction (RR), single-channel output Reset acknowledgment (RA), single-channel output ACM is OK, single-channel output Optional: safety-related information (SRI)

System start-up

< 30 s (fully operational)

Modular system:

Modules are installed by latching onto a mounting rail: mounting of mounting rail possible on a wall, in racks and in cabinets



Technical data

Power consumption:

Maximum: 12 W + 5 W per set of wheel detection equipment

Supply voltage (ACM):

21.6 V to 31.2 V DC,

Outputs (relays):

Switching voltage

Typically: 10 W + 4 W per set of wheel detection equipment residual ripple max. 100 mVrms 10 V to 72 V DC 10 V to 150 V AC Switching current

2 mA to 250 mA DC 2 mA to 1 A AC Inputs:

Signal voltage

21.6 V to 72 V DC Input current range

Actively: 3.5 mA to 8 mA Passively: < 200 uA MTBF:

25 °C

40 °C

ACM

31 years

24 years

ZP 43 E / V

—

180 years

ZP D 43

—

133 years

ID plug

4230 years

2640 years

Hazard rate:

SIL 4 as per EN 50129 with respect to the hazards listed below -1

The following hazard is controlled with a hazard rate of < 6.1 E-10 h : the indication that there is no train in a section (“clear”) although there is at least part of a train in the section, or the status transition indications “clear” – “occupied” – “clear” (corresponds to a passing train) although the relevant track vacancy detection section has not been traversed The indicated hazard rate applies when using the ZP D 43 with a traversal cycle of once a year and when using the ZP 43 E / V with a traversal cycle of 30 days. Note: if the ZP 43 E / V is used with a traversal cycle of once a year, the hazard rate is 2.1 E-9 /h per TVDS. -1

The following hazard is controlled with a hazard rate of < 2 E-10 h per TVDSoutput relay:

untimely dual-channel activation of the TVDSoutput relay (contacts not in the release state) for the output of binary safety-related information (SRI) Note: when quantifying this hazard, it has been assumed on a plausibility basis that the binary information to be transmitted changes its state at least once a year. Table 3

Technical data



Standards

5

Standards

Conformity with European directives and standards

The ACM 200 axle counting system described in this document complies, in the variant developed by us, with the regulations of the applicable European directives and standards. Details can be found in the EC Declaration of Conformity.



Indices

6

Indices

List of abbreviations

Abbreviation

Meaning

ACM

axle counter module

ACM 200

axle counting system

AZG

(Achszählgrundstellung) axle count reset operation

AZGH

(Achszählgrundstellungshilfsbedienung) auxiliary axle count reset operation

CH

counting head

COM

communication

DEK

(doppelter elektronischer Kontakt) double electronic contact

EBA

German Federal Railways Office

EBO

German Railway Building and Operation Regulations

FOC

fiber-optic cable

LED

light-emitting diode

MACM

multiple-axle counting method

RA

reset acknowledgment

RR

reset restriction

SELV

safety extra low voltage

SIL

safety integrity level

Simis

Siemens fail-safe microcomputer system

SLC

safety layer cyclic

SRI

safety-relevant information

TCB

trackside connection box

TVDS

track vacancy detection section

TVDS

track vacancy detection section

VAZG

(vorbereitende Achszählgrundstellung) preparatory axle count reset operation

ZP 43 E

electronic wheel detection equipment, 43 kHz with aluminum housing

ZP 43 V

electronic wheel detection equipment, 43 kHz with plastic housing

ZP D 43

electronic wheel detection equipment, 43 kHz, digital signal processing, analog interface



02 Systemdescription ACM200 A6Z00034296029

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