Siemens ST750 General Handbook
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Siemens ST750 General Handbook

Siemens ST750 General Handbook

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Intelligent Traffic Systems
Sopers Lane, Poole, Dorset, BH17 7ER
United Kingdom
+44 (0)1202 782000
www.siemens.co.uk/traffic
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Andy White
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Engineering Manager
UNCTION
THIS DOCUMENT IS ELECTRONICALLY HELD AND APPROVED
© Siemens Mobility Limited. 2018 All rights reserved.
The information contained herein is the property of Siemens Mobility Limited and is
supplied without liability for errors or omissions. No part may be reproduced or used except
as authorised by contract or other written permission. The copyright and the foregoing
restriction on reproduction and use extend to all media in which the information may be
embodied.
The names of products of third parties named in this document may be trademarks of their
respective owners.
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ST750 G
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ENERAL
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Issue 6

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Summary of Contents for Siemens ST750

  • Page 1 THIS DOCUMENT IS ELECTRONICALLY HELD AND APPROVED © Siemens Mobility Limited. 2018 All rights reserved. The information contained herein is the property of Siemens Mobility Limited and is supplied without liability for errors or omissions. No part may be reproduced or used except as authorised by contract or other written permission.
  • Page 2 ST750 G ENERAL ANDBOOK Change History Issue Change Ref Date First Issue 11 February 2009 TS004961 27 February 2009 TS005209 28 August 2009 TS005637 31 August 2010 TS005954 10 February 2011 TS009064 06 December 2018 667/HB/33750/000 Page 2 Issue 6...
  • Page 3 ST750 G ENERAL ANDBOOK SAFETY INFORMATION HEALTH AND SAFETY AT WORK DISCONNECT ALL POWER TO THE CABINET BEFORE REMOVING OR INSTALLING ANY EQUIPMENT INTO THE CABINET. Safety of Maintenance Personnel In the interests of health and safety, when using or servicing this equipment the...
  • Page 4 Master Switch or Circuit Warning Breaker on the rear of the Cabinet should be opened, since the Controller Switch on the front of the ST750 does not isolate both sides of the supply. When re-commissioning signals, the following sequence is recommended:...
  • Page 5 ST750 G ENERAL ANDBOOK WARNING To isolate the equipment the master switch must be in the “Off” position. Switching either the Controller or the Manual Panel Signals On/Off switch to “Off” does not guarantee isolation of the equipment. WARNING These (this) controller(s) require specific configuration to enable them (it) to function correctly when installed.
  • Page 6 Personnel should also ensure the safety of pedestrians, especially children, who may come into contact with parts of the ST750 Rack Assembly, Cabinet Assembly or signal poles.

  • Page 7: Table Of Contents

    2.1.3 SMALL NON-UK CONTROLLER ..................17 2.1.4 CONTROLLER EXPANSION ....................17 2.1.5 TYPES OF PEDESTRIAN CONTROLLER ................18 2.1.6 DIFFERENCES BETWEEN THE ST750 AND THE ST700 ..........18 2.1.7 SPARES COMPATIBILITY BETWEEN THE ST750 AND ST700 ........20 2.2 BASIC SYSTEM OVERVIEW ..................... 20 2.3 MAINS SUPPLY .........................
  • Page 8 5.5.1 REMOVE THE CONTROLLER CABINET FROM THE STOOL ........... 66 5.5.2 INSTALL THE STOOL......................66 5.6 CABLING TO THE ST750 SMALL AND LARGE CABINETS ............67 5.7 ON SITE CABLE TESTING ......................69 5.8 FIT THE CABINET TO THE STOOL ..................70 5.9 BACK FILL AND IN-FILL THE STOOL ..................
  • Page 9 Figure 3 – ST750 in Small Outer Case with Detector Swing Frame ..........43 Figure 4 – ST750 in Small Outer Case configured with optional 11” Swing Frame ......44 Figure 5 – ST750 in Large Outer Case configured with optional 19” Swing Frame ......45 Figure 6 –...
  • Page 10 Table 6 – Phase Drive PL6 Connector ..................... 72 Table 7 – Phase Drive PL7 Connector ..................... 73 Table 8 – Phase Drive PL8 Connector for ST750 Phase Driver PCB (6 Phase) ....... 74 Table 9 – Phase Drive SK1 Connector .................... 78 Table 10 –...

  • Page 11: Introduction

    The purpose of this handbook is to give a general description and specification of the ST750 Rack Assembly and the procedures for its Installation, Commissioning and Maintenance in the ST750 Cabinet Assembly and other Cabinets. Also provided is guidance on testing and maintenance procedures.

  • Page 12: Essential Documents - Cabling

    All work shall be performed in accordance with the Electricity at Work Regulations 1989 or the relevant local, state and government regulations. Any personnel working on the ST750 Controller should have completed the following training courses: • M608 – Pedestrian Traffic Controller Maintenance (ST750 & ST750ELV)

  • Page 13: Required Tools

    The ST750 Rack Assembly installed in the ST750 Cabinet with Assembly associated equipment mounting frame, mounting stool, mains distribution, power supplies, electronic control and phase switching. Configuration Data supplied by customer as to how the ST750 is to function. data (also referred to as customer’s data)

  • Page 14: Abbreviations

    Works Document produced by Siemens, which details the hardware Specification required for the ST750 and includes Site Data, usually in the form of a printout of the data entered on the configurator. 1.6 Abbreviations Alternating Current Above Ground Detector Binary digit (i.e.
  • Page 15 ST750 G ENERAL ANDBOOK UTMC Urban Traffic Management and Control Vehicle Actuated 667/HB/33750/000 Page 15 Issue 6...

  • Page 16: Specification

    ANDBOOK 2. SPECIFICATION The Specification that follows is for the ST750 Cabinet Assembly. Where appropriate it also applies to the ST750 Rack Assembly as supplied for installation in another Cabinet. Non-UK specifications are detailed where they differ from standard UK specifications.

  • Page 17: Single Pedestrian Controller

    Dual Pedestrian operation and up to a 6 Phase Traffic Controller operation, each with solid state switching. The power/phase assembly with its associated ST750 Phase Drive PCB and PSU can drive up to 18 signal outputs with 230V at 4A. The pedestrian signals are configurable to supply either 230V or 48V.

  • Page 18: Types Of Pedestrian Controller

    OMU – Outstation Monitoring Unit for Remote Monitoring System. 2.1.5 Types of Pedestrian Controller A number of different types of pedestrian crossings are available on the ST750. The following table lists the different types of ‘stand-alone’ pedestrian crossings detailed in TR2500A: Type of Ped.
  • Page 19 ENERAL ANDBOOK • CPU – A new variant of the CPU board is required for operation in the ST750. Although the ST700 and ST750 CPU Cards look very similar, the ST750 requires at least 512KB of RAM and only 256KB is fitted to most ST700 CPU Cards.

  • Page 20: Spares Compatibility Between The St750 And St700

    ST750 due to the difference in RAM requirement. If required, it is possible to use an ST750 CPU board to replace an existing or faulty ST700 CPU board but it is NOT possible to use an ST700 CPU board to replace an existing or faulty ST750 CPU board.

  • Page 21: Mains Supply

    ST750 G ENERAL ANDBOOK Conflict System Main and Secondary Processors Self Testing Physical Hardware CPU Card PCB (244mm x 228mm) Phase Drive Card PCB (253mm x 235mm) 2.3 MAINS SUPPLY The following supply voltages may be used: Nominal Minimum Maximum...

  • Page 22: Electrical Noise

    Section 1.3.2 for further details. The solar cell enables the ST750 to identify the light level and thus dim the signals when it is dark. The switch is set to operate at 55 lux and release at 110 lux. There is an optional time switch that can be used to regulate dimming control if required.

  • Page 23: St750 Supply Requirements

    ST750 G ENERAL ANDBOOK 2.4.1 ST750 Supply Requirements The typical supply requirements for an ST750 are: Power (Watts) Single (2 Phase) or Dual (4 Phase) Pedestrian Controller 40 W Non-UK Controller (6 Phase) 50 W Table 1 – ST750 Supply Requirements These requirements exclude lamp loads, detectors and OTU but include dimming transformer.

  • Page 24: Table 3 - St750 Lamp Load (Watts)

    Signal 48V Siemens Demand >8 Indicator Table 3 – ST750 Lamp Load (Watts) *Note – ST750 LED Controllers allow these signals to be monitored. 667/HB/32921/007 in Section 1.3.2 for further details. Power (Watts) Siemens ST4R/ST4S detectors 2.4 watts per detector...

  • Page 25: Calculation Of Average Signal Lamp Power

    Average Controller power + Average Detector Power. See section 2.4.1. A controller is rated at 40 watts (single or dual Pedestrian Controller). For the purposes of this calculation Siemens ST4R/ST4Sdetector cards are rated at 3W per card. This gives the total average junction power, which may be used to estimate running costs.

  • Page 26: Connection To Un-Metered Supplies (Ums)

    = 657 W 2.4.5 Connection to Un-Metered Supplies (UMS) If the ST750 is to be connected to an unmetered supply (UMS) equipment codes for the agreed power consumption of the controller and all associated equipment may be found on the Elexon web site.

  • Page 27: Detector Power Supplies

    _Unmetered_Supplies/Charging_Code_Structure_for_UMS.pdf 2.4.6 Detector Power Supplies The maximum current available for detectors on the ST750 is 0.6A at 24V DC. Refer to Table 4 or the Detector Handbooks for power consumption of detectors. If more current is required, then power all detectors from a 24V AC Detector PSU.

  • Page 28: Phases

    The ST750 software can support up 32 phases, which can be any combination of real and software phases. 2.6 STAGES The ST750 software supports up 32 stages. Note that Stage 0 is normally ALL RED. 2.7 TIMINGS All ST750 timings are transferred to battery supported RAM during initialisation.

  • Page 29: Tolerance

    ANDBOOK Some timings considered to be safety timings can only be changed by a person at the ST750 operating the write enable ‘level 3’ push button, e.g. minimum green, intergreen, blackout timings, etc. The default timings for the ST750 standard Pedestrian configurations are given in their IC4 printouts (Special Instructions).

  • Page 30: Modes Of Operation

    Number of group influences: 10 types 2.9 MODES OF OPERATION The following modes are available on the ST750 Pedestrian controller, and are described fully in Section 3: • Stand Alone Pedestrian V.A. • Stand Alone Pedestrian V.A. with pre-timed maximum period •...

  • Page 31: Cabinet Characteristics

    ST750 G ENERAL ANDBOOK 2.10 Cabinet Characteristics The ST750 Outer case is a single sided access cabinet with the following dimensions: Small outer case – Height 1200mm Width 466mm Depth 370mm Approximate weight of cabinet and stool, including one Gemini, and...

  • Page 32: Atmospheric

    Contact Engineering at Poole for more details on hardware restrictions. 2.11.2 Atmospheric The controller is proofed against driving rain and sand, dust conditions and industrial pollution. 2.11.3 Humidity The ST750 will withstand a temperature of 45C with a relative humidity of 95%. 667/HB/33750/000 Page 32 Issue 6...

  • Page 33: Pedestrian Facilities

    ST750 G ENERAL ANDBOOK 3. PEDESTRIAN FACILITIES 3.1 Types of Pedestrian Crossings 3.1.1 Pelican Crossing The vehicle to pedestrian intergreen is controlled by the PAR Pedestrian All-Red period. The PAR handset command allows different all-red periods to be executed depending on why the vehicle phase left green. Different times can be specified for each of the following: fixed vehicle period mode (see section 3.2.1), VA mode ‘gap’...

  • Page 34: Far Sided Pedestrian Crossing

    ST750 G ENERAL ANDBOOK Veh: Green Green Amber Ped: Green CDY0 Gap Change On-Crossing Detector: Max Change R/A Green CDY1 On intersections, the appearance of the vehicle phase will be delayed further if the IGN intergreen time is larger than PBT plus the red/amber period.

  • Page 35: On-Crossing Detectors

    ST750 G ENERAL ANDBOOK Veh: Green Green Amber Ped: Green Blackout Gap Change On-Crossing Detector: Max Change R/A Green Blackout CDY1 If a fixed black-out period is required, i.e. with no on-crossing detectors, then CMX should be set to zero so that the black-out period is controlled solely by PBT:...

  • Page 36: Pedestrian Modes Of Operation

    ST750 G ENERAL ANDBOOK Also note that if the Continuous Ped Demand (CPD) button on the manual is pressed, then the red clearance of near-sided signals will be extended to its maximum as required by TR2500A. If an on-crossing detector has not been activated from the end of the preceding pedestrian clearance period to the end of the current pedestrian steady green period, then the clearance period is forced to run to its maximum.

  • Page 37: Vehicle Actuated With Pre-Timed Maximum (Ptm)

    ST750 G ENERAL ANDBOOK If the pedestrian phase is demanded while this period is still running, the vehicle phase remains at green until at least this period has expired. If the pedestrian phase is demanded after this ‘minimum’ period has expired and no vehicles are present, then the vehicle phase loses right of way immediately.

  • Page 38: Pedestrian Demand Control

    ST750 G ENERAL ANDBOOK This is often required, for example, when the pedestrian controller is close to an intersection where it is beneficial to keep the pedestrian controller at vehicle green during certain stages of the intersection controller to help the traffic entering and/or leaving the nearby intersection.
  • Page 39 ST750 G ENERAL ANDBOOK Figure 2 – Ped Demand Processing SPECIAL PED INPUT PROCESSING CONDITIONING DEMAND AND READ/WRITE ACCESS KERBSIDE PBNACT PUSHBUTTON ACTIVE (ENG 254) PED DEMAND PROCESSING PUSHBUTTON & KERBSIDE LATCH LATCHED PBNLAT DEMAND PUSHBUTTON (ENG 284) UNLPUF BUT NOT...

  • Page 40: Pedestrian Demand Acceptance

    ST750 G ENERAL ANDBOOK 3.3.2 Pedestrian Demand Acceptance For the purposes of this section, push button inputs include any demand inputs assigned to a pedestrian phase, including for example inductive loops for cycles. If no kerbside detectors are configured on the phase, pressing the push buttons generates a latched demand for the pedestrian phase, which is only cleared when the pedestrian phase gains right of way.

  • Page 41: Pedestrian Demand Cancel (Pdx)

    ST750 G ENERAL ANDBOOK • In VA mode, if no real phases in the same stream are at right of way, the delay is introduced, so delaying the appearance of the pedestrian green after a quiescent all-red period, for example.
  • Page 42 ST750 G ENERAL ANDBOOK as faulty, the DFM indicator is illuminated and the detector input forced active (regardless of the setting of the DFM forcing action command ‘DFA’). * Note that for the input to be seen inactive at the 200ms processing rate, all ten 20ms samples must have been inactive.

  • Page 43: Hardware Overview

    ST750 G ENERAL ANDBOOK 4. HARDWARE OVERVIEW 4.1 Cabinet Options The ST750 is available in either the T400S (small) or ST900 (Large) cabinet / Outer Case ST750 Rack Assembly Equipment Terminal Panel Detector Swing Frame Master Switch Unit Mains (Dimming) Transformer Figure 3 –...

  • Page 44: Figure 4 - St750 In Small Outer Case Configured With Optional 11" Swing Frame

    ANDBOOK ST750 Detector Rack PSU Kit Assembly Gemini Loop Detectors 11” Detector Rack Kit Rack 11” Swing Mains Frame (Dimming) Transformer Figure 4 – ST750 in Small Outer Case configured with optional 11” Swing Frame 667/HB/33750/000 Page 44 Issue 6...

  • Page 45: Figure 5 - St750 In Large Outer Case Configured With Optional 19" Swing Frame

    ST750 G ENERAL ANDBOOK 19” ST700 Swing Rack Frame Assembly 19” Rack Assembly Figure 5 – ST750 in Large Outer Case configured with optional 19” Swing Frame 667/HB/33750/000 Page 45 Issue 6...

  • Page 46: The St750 Rack Assembly

    PROVIDED BETTER VIEWING Figure 6 – ST750 Rack Assembly The ST750 Rack Assembly consists of a box like frame with a plate hinge on the front that acts as an access door. The Phase Drive PCB is mounted behind the ST750 CPU PCB in this assembly.

  • Page 47: Figure 7 - Cpu And Phase Driver Cards

    ST750 G ENERAL ANDBOOK Figure 7 – CPU and Phase Driver Cards Expansion Card Figure 8 – I.O Expansion Card 667/HB/33750/000 Page 47 Issue 6...

  • Page 48: St750 Cpu Leds

    ST750 is running normally. If it does not illuminate there is no power to the CPU PCB. Check that the ST750 is powered and that the Phase Control ribbon cable is inserted into the socket of the CPU PCB.

  • Page 49: Signal Led Group

    With reference to Figure 10 the mains supply voltage is applied to the main ON/OFF 63A circuit breaker, within the Master Switch Assembly, for onward supply to the ST750 Traffic Controller. The live supply wire is taken from the main ON/OFF mini circuit breaker and applied to a Master 20A Mini Circuit Breaker.

  • Page 50: Fuses

    ENERAL ANDBOOK 4.5 FUSES Figure 42 on page 115 lists the types and placing of fuses in the ST750. Fuses should only be replaced by ones of a similar rating and type. 4.6 Mains Dimming Transformer Mains Dimming Voltages are derived from the Mains Dimming Transformer, mounted in the bottom left hand corner of the controller, and delivered to SK1 on the Phase Driver PCB.

  • Page 51: Detector Mounting

    4.8 Detector Mounting The ST750 supports Single Detector Back Planes only - the Intelligent Detector Backplane as fitted to ST750 ELV / ST900 / ST900 ELV controllers is NOT supported. For full details on the connection of detectors and power requirements please refer to ST4R/ST4S Detector Manual 667/HB/27663/000.

  • Page 52: Figure 14 - Detector Swing Frame

    If more than four Detector PCBs are required, an 11” Swing Frame will be required in the cabinet. With the 11” swing frame fitted, the ST750 can support up to a maximum of eight Detector PCBs and associated Backplanes. With reference to Figure 15, the 11”...

  • Page 53: Detector Back Planes In Large Outer Case

    Figure 16 – Detectors in a 19” Swing Frame 4.9 2A Detector Supply Kit With reference to Figure 17, the ST750 is configured with one detector supply kit, fitted on the right hand side of the ST750 Rack Assembly, as standard.

  • Page 54: Gemini

    ST750 G ENERAL ANDBOOK Figure 17 - 2A Detector Supply Kit 4.10 Gemini 4.10.1 Gemini in Small Outer Case When a Gemini unit is required, it can be positioned in one of two locations, depending on the quantity of Detector PCBs fitted. If four or less Detector PCBs are...

  • Page 55: Gemini In Large Outer Case

    Refer to 667/HB/32600/000 for full details. The Detector swing frame supported in the ST750 is a different part (667/1/33770/000) to that supported in the ST700.

  • Page 56: Figure 20 - Gemini In A Large Outer Case

    ST750 G ENERAL ANDBOOK Gemini Loop Detectors Figure 20 - Gemini in a Large Outer Case When fitting a Gemini unit in a swing frame care must be taken to ensure that the internal lead acid battery terminals point UPWARDS Warning! to prevent leakage.

  • Page 57: Tc12 Otu

    ST750 G ENERAL ANDBOOK 4.11 TC12 OTU The Outstation Transmission Unit (OTU) based around the Tele 12 (TC12) Command System, is available in two configurations – • Integral OTU • Freestanding OTU 4.11.1 Integral TC12 OTU in Small or Large Outer Cases The Integral Tele 12 OTU PCB occupies the same position as the I/O Expansion PCB in the Rack Assembly (refer to Figure 8).

  • Page 58: Figure 21 - Freestanding Tc12 Otu In Small Outer Case

    ST750 G ENERAL ANDBOOK Freestanding OTU in 11” Swing Frame Figure 21 - Freestanding TC12 OTU in Small Outer Case 667/HB/33750/000 Page 58 Issue 6...

  • Page 59: Freestanding Tc12 Otu In A Large Outer Case

    ST750 G ENERAL ANDBOOK 4.11.3 Freestanding TC12 OTU in a Large Outer Case A freestanding OTU must be specified in a 5U 19” rack unit.. With reference to Figure 22, the 5U Rack is mounted at the bottom of the 19” Swing Frame.

  • Page 60: Sde/Sa

    ST750 G ENERAL ANDBOOK 4.12 SDE/SA The ST750 does not support the SDE/SA PCB. Instead, the functionality associated with Speed Discrimination and Speed Assessment is contained within the standard ST750 controller firmware. Please refer to the doc 667/HH/32900/00 for the appropriate handset commands.

  • Page 61: Installation And Commissioning

    This section details the procedure for installing and commissioning of the ST750 pedestrian controller in both the small and large controller cabinet arrangements. Refer to section 6 for instructions on installing and commissioning of the ST750 Rack Assembly into other traffic controller cabinets. 5.1 Pre-installation checks...

  • Page 62: St750 Cabinet Preparation

    5.3 Site suitability The ST750 controller cabinet is installed to suit local conditions, but subject to the following limitations: The position of the controller cabinet is as shown on the relevant site plan, STS.

  • Page 63: Installation Of The St750 Small Cabinet

    Occasionally it may be necessary to terminate the cable prior to sealing the base. In the case of the ST750 this will result in the necessity of installing the Rack Assembly into the controller cabinet. It is usually better to seal the base and make provision for the installation of additional cables such as Telecom or fibre cable by installing a suitable size flexible duct.

  • Page 64: Install Controller Cabinet And Stool

    Burying the controller too deep will result in a seal below ground level or excessively close to the MDU and the isolation transformer. If the ST750 controller cabinet is being installed on a slope, allowance must be made for ground level clearance of the door to the uphill side.

  • Page 65: Installation Of The St750 Large Cabinet

    Occasionally it may be necessary to terminate the cable prior to sealing the base. In the case of the ST750 this will result in the necessity of installing the Rack Assembly into the controller cabinet. It is usually better to seal the base and make provision for the installation of additional cables such as Telecom or fibre cable by installing a suitable size flexible duct.

  • Page 66: Remove The Controller Cabinet From The Stool

    Refer to Figure 25 for the general method of installation and dimensions. If the ST750 controller cabinet is being installed on a slope, allowance must be made for ground level clearance of the door to the uphill side.

  • Page 67: Cabling To The St750 Small And Large Cabinets

    Figure 25 - Stool Installation, Large Cabinet 5.6 Cabling to the ST750 small and large cabinets All cables into the ST750 controller cabinets should be fed through the ducts and into the stool/base as close to the controller termination positions as possible. This is to prevent unnecessary damage being caused should any cables need to be moved once they are in place.
  • Page 68 ST750 G ENERAL ANDBOOK The inner sheathing is removed to expose the individual cores that are connected to associated terminals, leaving sufficient spare length for re-making off the ends should this become necessary. Unused cores should be left with sufficient length to enable them to be connected to any terminal should this subsequently become necessary.

  • Page 69: On Site Cable Testing

    ST750 G ENERAL ANDBOOK SIDE VIEW Mounted at CET Lower Fixing Position Cores Inner Insulation Ident 55mm Higher CET 65mm Fixing Position (Armouring not shown at Lower CET front of ring for clarity) Fixing Position Stud Hose Clip Ident (Alternative position)

  • Page 70: Fit The Cabinet To The Stool

    ST750 G ENERAL ANDBOOK 5.8 Fit the cabinet to the Stool If the controller cabinet was not installed with the mounting stool then it should be done as follows: Clean the top surface of the stool and the lower surface of the cabinet that will be in contact when the cabinet is fitted.

  • Page 71: Cable Routing & Termination

    Assembly, as this would prevent its removal for maintenance or replacement. In the back of the metal frame across the top of the ST750 Rack Assembly, securing holes are provided to secure the detector wire looms. These holes ensure that there is sufficient room to allow the removal of the ST750 Rack Assembly.

  • Page 72: Phase Drive Pcb Terminal Blocks

    Cables can be wired directly to the ST750 terminals. Softwire Kits are available to install an ST750 in other Cabinets. If the Softwire kit is used in the ST750 cabinet assembly, then their associated terminal blocks are mounted on the right hand side and back of the cabinet’s inner metal frame.

  • Page 73: Table 7 - Phase Drive Pl7 Connector

    ST750 G ENERAL ANDBOOK Signal Phase Drive O/P Softwire kit Pin No Cableform 667/1/27877/000 Monitored Red Phase A Approach 2 Monitored Amber Phase A Approach 2 Yellow Monitored Green Phase A Approach 2 Green Not used (for isolation purposes) Red Phase B...

  • Page 74: Table 8 - Phase Drive Pl8 Connector For St750 Phase Driver Pcb (6 Phase)

    PL7 and PL6. For more details see the following diagram: Mating Half PL7 Table 8 – Phase Drive PL8 Connector for ST750 Phase Driver PCB (6 Phase) Signal Phase Drive O/P Softwire kit Pin No...
  • Page 75 ST750 G ENERAL ANDBOOK Table 9 – Phase Drive PL8 Connector for ST750LED Phase Driver PCB Signal Phase Drive O/P Softwire kit Pin No Cableform 667/1/32756/000 Colour Ident Monitored Red Phase A RLM Channel 3 Monitored Red Phase A RLM Channel 4 Coding Details: This connector has no coding element, as it is the only 2-way connector.

  • Page 76: Figure 27 - Allocation Of Red Lamp Monitor Channels For St750 Controllers Without Lv Cls (Nlm) Monitoring

    Phase E LMU ONLY Vehicle RED5 Supply 240v YLW5 GRN5 Phase F Vehicle RED6 Supply 240v YLW6 GRN6 Figure 27 - Allocation of Red Lamp Monitor Channels for ST750 Controllers without LV CLS (NLM) monitoring 667/HB/33750/000 Page 76 Issue 6...

  • Page 77: Figure 28 - Allocation Of Red Lamp Monitor Channels For St750Led Controllers With Lv Cls (Nlm) Monitoring

    ST750 G ENERAL ANDBOOK Phase A Vehicle Supply 230V Vehicle RLM Channel 1 LMU + RLM Triacs Monitors Vehicle RLM Channel 2 LMU + RLM Phase B Pedestrian Supply RB (Red Man) 230/48V GB (Green Man) Wait LMU only Supply...

  • Page 78: Table 9 - Phase Drive Sk1 Connector

    Note 1 These neutrals are not used as TB1 block part of cable form is linked between terminals 4 to 12, but these outputs can be used when wired direct in an ST750 cabinet installation. Note 2 These 48V returns are not used as TB1 block part of cable form is linked between terminals 6 to 12, but these outputs can be used when wired direct in an ST750 cabinet installation.

  • Page 79: Table 11 - Phase Drive Sk2 Connector No Dimming

    Short to pin 4 Short to pin 3 Table 12 – Phase Drive SK2 48V Dimming Connections Normally the ST750 in its own cabinet is fitted with the cable 667/1/27868/000 described below (see also Figure 28): 48V Dimming Transformer’s I/P...

  • Page 80: Figure 29 - Dimming Transformer Tap Selection

    Input Tap 160V 140V 120V If the ST750 is installed in another cabinet, the 667/1/27868/001 cable should be used with connections as shown above. This cable is provided with the cabinet modification kit. Note 1: The links between pins 3 to 6 need to be rearranged.

  • Page 81: Figure 30 - Connector Pl5

    Flange Figure 30 - Connector PL5 Instead of driving all the signals at the 230V nominal supply, the ST750 is capable of driving the Wait indicators or all the pedestrian phase signals directly with an ELV 48V lamp supply.

  • Page 82: St750 Cpu Pcb Terminal Blocks

    5.11.2 ST750 CPU PCB Terminal Blocks When installing in an ST750 cabinet, wire the intersection cables directly to the specified connector in the following tables (using the respective mating half contained in the attached plastic bag) on the ST750 CPU PCB.

  • Page 83: Table 14 - Processor Card Pl3 Connector

    ST750 G ENERAL ANDBOOK Also, the connectors PL2, PL3, PL6 and PL7 require a small-ended (2.5mm) screwdriver. Use a Phoenix Screwdriver Part Number SZS 0.4 x 2,5 or equivalent (see note at the top of each table). When installing in any other cabinet, a Softwire kit is required. Wire the loose wire...

  • Page 84: Figure 31 - Connector Pl3

    ST750 G ENERAL ANDBOOK Coding for PL3 Mating Half PL3 Coding Pin Coding Ridge Inserted in Removes in 3 3 Positions positions PL3 on PCB Figure 31 - Connector PL3 Table 15 – Processor Card PL7 Connector Note: These terminals must be tightened correctly using Phoenix Screwdriver Part Number SZS 0.4 x 2,5 or equivalent.

  • Page 85: Figure 32 - Connector Pl7

    ST750 G ENERAL ANDBOOK prevents the incorrect connection between PL7 and PL6. For more details see the following diagram: Coding for PL7 Mating Half PL7 Coding Pin Coding Ridge Inserted in Removes in 3 3 Positions positions PL7 on PCB Figure 32 - Connector PL7 Table 16 –...

  • Page 86: Figure 33 - Connector Pl2

    ST750 G ENERAL ANDBOOK Coding for PL2 Mating Half PL2 Coding Pin Coding Ridge Inserted in Removes in 3 3 Positions positions PL2 on PCB Figure 33 - Connector PL2 Table 17 – Processor Card PL6 Connector Note: These terminals must be tightened correctly using Phoenix Screwdriver Part Number SZS 0.4 x 2,5 or equivalent.

  • Page 87: Regulatory Signs Monitoring

    Figure 34 - Connector PL6 5.12 REGULATORY SIGNS MONITORING The ST750 Rack Assembly does not cover regulatory signs and their associated monitoring. There is a fuse position labelled ‘F3 Detector’ which could be used to supply regulatory signs if required. Their monitoring would require standard current coils to be connected to the external analogue inputs.

  • Page 88: Cpu Pcb Switch And Link Setup

    ST750 G ENERAL ANDBOOK 5.13.1 CPU PCB Switch and Link Setup See the following pages for switch and link settings. Switches and Link Setting Positions Controller O/P 92 to 95 Manual Panel Connector PL1 Controller O/P 88 to 91 Phase...

  • Page 89: Figure 36 - Flash Rate Settings

    ST750 G ENERAL ANDBOOK 5.13.1.1 DIL Switch S4 Settings For use in the UK, the hardware fail flash facility should be disabled. The settings are shown in Figure 36. For use in Non-UK versions, the flash rate can be set to different speeds for 40ms to 600ms (on 50Hz operation) by setting the right combination of S4 switches to the off position.

  • Page 90: Figure 37 - Phase Output Flash Selection

    ST750 G ENERAL ANDBOOK Phase:- Phase:- AMBER 7 & 8 7 & 8 not used not used Figure 37 – Phase Output Flash Selection 5.13.1.3 DIL Switch S1 Settings The value of the series resistance for the relay contacts can be set to either 182...

  • Page 91: Phase Drive Pcb Switches, Links And Fuses Setup

    External Mains and Mains I/P 48V Connections F6 and F8 are F10 and F11 are Connector Pedestrian Wait/ Pedestrian Red/ Dimming Vehicle Ambers Green Transformer FUSE = 48v Connector Figure 39 – ST750 Phase Drive PCB Assembly 667/HB/33750/000 Page 91 Issue 6...
  • Page 92 Note: The dummy fuse is a plastic spacer, the same size as the fuse it replaces. It is used to prevent service personnel inserting an extra fuse and thus causing damage to occur to the ST750. 5.13.2.2 Blue and Red Handbag Links Settings The output voltage monitoring circuits for the Pedestrian Red and Pedestrian Green can be set to monitor either 230V or 48V.

  • Page 93: Refitting The Lid

    Lid carefully on the equipment mounting frame and secure the Lid to the frame using the ‘T’ key. 5.15 ON-SITE ST750 TESTING Connect a suitable handset to the 25-way D-type connector on the ST750 Phase Drive PCB. 667/HB/33750/000 Page 93...
  • Page 94 The configuration data for a stand-alone pedestrian crossing ST750 is loaded through the handset port from a PC running IC4. The configuration data could be loaded while the ST750 is still in the depot rather than using a PC on the street. Provided the battery isolators are removed, the configuration data will still be present in the battery backed-up RAM when the ST750 is installed.

  • Page 95: St750 Start-Up Sequence

    Handset Handbook for full detail of error messages (section 1.3.2) In addition to the above internal checks, the ST750 goes on to check the contents of its battery backed RAM, e.g. the fault log and checksum on the timings data, before attempting to switch on the signals.

  • Page 96: Common Returns For Push Button

    Handset Handbook. 5.17 COMMON RETURNS FOR PUSH BUTTON For the connections for the common returns see the following drawings :- ST750 in small outer case - 667/CC/29000/002 ST750 in large outer case - 667/CC/29000/003 5.18 COMMON RETURNS FOR DETECTORS For the connections for the common returns see the following drawings :-...

  • Page 97: Fitting The St750 Rack Assembly Into Alternative Cabinets

    REMOVING OR INSTALLING ANY EQUIPMENT INTO THE Warning! CABINET. The ST750 Rack Assembly may be fitted into enclosures other than the ST750 Cabinet Assembly. In the UK, the Cabinet must be one that has previously been approved with a different controller. Some examples are:...

  • Page 98: Routine Maintenance Procedures

    ANDBOOK 7. ROUTINE MAINTENANCE PROCEDURES This section contains a list of checks to be performed at an ST750 on a regular basis (normally annually). If for any reason, the power is switched off to the ST750, then a total installation Megger test should be carried out, as defined in the General Testing Handbook.
  • Page 99 • Check wiring and cableforms, particularly ribbon cables for damage. Replace or re-route as appropriate. • The battery on the ST750 CPU PCB must be replaced if it has failed. Any replacement battery should be suitably marked with an appropriate date label.

  • Page 100: Routine Setup Check

    30 minutes. 7.4 REPLACEMENT OF PCB This section covers the removal and fitting of PCBs in the ST750. Safety requirements and procedures are described to ensure that the board functions correctly when fitted (e.g.

  • Page 101: Safety Requirements

    If a fault is suspected with the Phase Drive PCB, the whole Power/Phase assembly is replaced as described in section 7.4.6. If fitted, the I/O Board or OTU Board are fitted inside the ST750 Rack Assembly, behind the CPU PCB.

  • Page 102: Access To Pcbs In Other Outercases

    All ST750 Rack Assemblies installed in cabinets with 19” mounting kits provide full access to the front face of the ST750 and have sufficient room to allow the hinged front plate to swing open, giving access to the internal PCBs.

  • Page 103: Replacement Of Manual Panel Pcb

    Note: The new Power/Phase assembly is supplied with a chassis door fitted. It is not necessary to replace the door when the Phase Drive PCB has failed. The old Power/Phase assembly should be returned to Siemens Poole with the replacement door.

  • Page 104: Replacement Of Expansion I/O Or Otu Pcb

    No sealing is required on refitting. 7.4.8 Replacement of Expansion I/O or OTU PCB Removal of the I/O or OTU PCB may be done once the Mains to the ST750 Rack Assembly has been isolated at the master switch, the 64-way Phase Control ribbon cable has been disconnected from the CPU and the hinged front plate has been opened.
  • Page 105 ST750 G ENERAL ANDBOOK 667/HB/33750/000 Page 105 Issue 6...

  • Page 106: Self-Test Facility

    ST750 G ENERAL ANDBOOK 8. SELF-TEST FACILITY The self-test facility can be used to check the hardware fitted to the controller, even before a configuration is loaded. It is designed to be used both in the factory by production and on the street by installation/ maintenance engineers.

  • Page 107: Figure 41 - Handset

    ST750 G ENERAL ANDBOOK Figure 41 – Handset 0 = - - 0 = - - - - 8 = D - - - 1 = - - - A 9 = D - - A 1 = - E 2 = - - B –...
  • Page 108 ST750 G ENERAL ANDBOOK ZXO Sync’d... If the phase bus processor cannot synchronise to the mains zero cross-over signal, then self-test will wait indefinitely at this point with the red system error LED flashing. Mains Freq Error If the mains frequency is more than 5% out from either 50Hz or 60Hz.
  • Page 109 ST750 G ENERAL ANDBOOK P/Bus Init... Bad L/S Cards Once initialised, the phase bus processor performs more thorough checks on the lamp switch card and may detect faults. • Checks the monitor validation signal: M/V Test ..Failed Mon Val Failed The monitor validation signal is generated by the main processor to check the phase bus processor, so a failure is probably due to a faulty processor card.
  • Page 110 ST750 G ENERAL ANDBOOK G-00000001+00000000 If any of the voltage monitors appear to be detecting mains, then it would imply that those triacs are not holding off the mains and the lamp switch card should be replaced. • L/S Supply Failure:...
  • Page 111 ST750 G ENERAL ANDBOOK Dim L/Supply=160V • Checks all of the triacs in turn by applying a very short pulse to each phase’s colour: A/Red:Extra Sigs On R-00000001+00000001 A-00000001+00000001 G-00000001+00000001 A fault will be logged if extra signals are detected as on when one particular aspect is pulsed.

  • Page 112: Appendix A - Part Numbers And Spares List

    Siemens Traffic may invalidate the warranty or safety of this product. A.1 – PART NUMBERS Listed below are the currently available parts that make up the ST750 Description Siemens Part Number ST750 UK SINGLE PED IN ST900 CAB GREY...

  • Page 113: Spares List

    Listed here are the parts that should be used when replacing components. In addition to the spares listed here, many of the parts included in section A.1 above may be ordered as replacements. Contact Siemens Poole for details. A.2.1 – PCBS...

  • Page 114: Fuses

    ST750 G ENERAL ANDBOOK ST750 LED 2 Phase Drive PCB 667/1/33790/002 ST750 LED 4 Phase Drive PCB 667/1/33790/004 A.2.2 – FUSES See Appendix A.3 for details of where these fuses are used 0.5A cartridge fuse 518/4/90285/004 16A HRC cartridge fuse (Pre Nov 2003)

  • Page 115: Figure 42 - Fuse Ratings

    ST750 G ENERAL ANDBOOK Aux. Supply Fuse (If Din Rail 5A HRC cartridge fuse to BS1361 marked ‘OTU/AUX’ on Master Switch Panel. Mounted) e.g. OTU/OMU 518/4/90638/000 Aux. Supply Fuse (If Phase Drive 5A HRC cartridge fuse size 0 (32mm x 6.4mm) marked ‘F4’...

  • Page 116: Last Page

    ST750 G ENERAL ANDBOOK LAST PAGE OF THE ST750 GENERAL HANDBOOK 667/HB/33750/000 Page 116 Issue 6...

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