Page 2 - Issue
ST900 Family General Handbook 667/HB/32900/000 Issue 12 Page 2 of 265 Change History: Issue Change Ref Date 1 First Issued Oct 2007 2 Updated Table 1 and Table 8 to add missing IMU information. Added note to both tables - 248 IO maximum. Figure 9 repaired – ref RFC 3446 CLS lamp monitoring reduced b...
Page 3 - SAFETY WARNING; (b) The equipment must be disconnected/isolated from the incoming; WARNING
ST900 Family General Handbook 667/HB/32900/000 Issue 12 Page 3 of 265 SAFETY WARNING In the interests of health and safety, when using or servicing this equipment the following instructions must be noted and adhered to: (i) Only skilled or instructed personnel with relevant technical knowledge and e...
Page 4 - Safety Warning - Lithium Battery
ST900 Family General Handbook 667/HB/32900/000 Issue 12 Page 4 of 265 Safety Warning - Lithium Battery This equipment contains a Lithium battery. Do not short circuit, recharge, puncture, take apart, incinerate, crush, immerse, force discharge or expose to temperatures above the declared operating t...
Page 5 - WARNING IMPORTANT ELV CONSIDERATIONS:; conductors having insulation rated for the highest; Any third party ELV sources installed in this
ST900 Family General Handbook 667/HB/32900/000 Issue 12 Page 5 of 265 WARNING IMPORTANT ELV CONSIDERATIONS: To provide the most reliable operation, Siemens ELV controllers use a DC (unsmoothed) lamp supply which, in common with DC powered telecommunication equipment, is negative with respect to eart...
Page 7 - TABLE OF CONTENTS; Controller Load, Power Consumption and Lamp Supply Transformer
ST900 Family General Handbook 667/HB/32900/000 Issue 12 Page 7 of 265 TABLE OF CONTENTS 1 INTRODUCTION ................................................................................................ 15 1.1 Purpose ........................................................................................
Page 13 - TABLES
ST900 Family General Handbook 667/HB/32900/000 Issue 12 Page 13 of 265 Figure 23 – Double SDE Layout ............................................................................ 115 Figure 24 – Triple SDE Layout ............................................................................... 116 Figu...
Page 15 - Purpose; Note; Related Documents
ST900 Family General Handbook 667/HB/32900/000 Issue 12 Page 15 of 265 1 1 I I N N T T R R O O D D U U C C T T I I O O N N 1.1 Purpose This handbook gives details of the facilities available in the Siemens Type 900 (ST900) Family of Traffic Controllers using firmware PB801. The Family consists of tw...
Page 17 - Abbreviations; Part Number
ST900 Family General Handbook 667/HB/32900/000 Issue 12 Page 17 of 265 1.4.2 Required Tools In addition to a standard Engineer’s tool kit, the following tools are required when carrying out any work on the ST900 Controller: 1.5 Abbreviations AC Alternating Current CLF Cableless Linking Facility CLS ...
Page 19 - System Overview; The Main Processor Card is now coupled with a daughter card (the PHS
ST900 Family General Handbook 667/HB/32900/000 Issue 12 Page 19 of 265 2 2 S S T T 9 9 0 0 0 0 C C O O N N T T R R O O L L L L E E R R 2.1 System Overview The Siemens ST900 is a mains driven Traffic Controller that can be supplied either in a single-door outer case with a 6U logic rack and equipment...
Page 20 - Figure 1 – ST900 System Overview
ST900 Family General Handbook 667/HB/32900/000 Issue 12 Page 20 of 265 The ST900 Controller uses the reliable and proven Mains Lamp Switch Cards as used in the ST800 Controller, offering a total of 32 phases per controller. The ST900 Family supports all existing ST800 equipment such as Gemini, Gemin...
Page 21 - The Controller Cabinet
ST900 Family General Handbook 667/HB/32900/000 Issue 12 Page 21 of 265 2.2 The Controller Cabinet Figure 2 – ST900 Controller Cabinet General Arrangement
Page 22 - Figure 3 – ST900 Controller Cabinet showing new equipment
ST900 Family General Handbook 667/HB/32900/000 Issue 12 Page 22 of 265 Figure 3 – ST900 Controller Cabinet showing new equipment
Page 23 - ST900 Controller Rack
ST900 Family General Handbook 667/HB/32900/000 Issue 12 Page 23 of 265 2.3 ST900 Controller Rack Figure 4 – The ST900 Rack (General Arrangement) Note that a standard 20A UK power distribution unit is shown in Figure 4; other variants including a 30A variant and The LED variant of the distribution un...
Page 24 - Fitting the Controller into Alternative Cabinets
ST900 Family General Handbook 667/HB/32900/000 Issue 12 Page 24 of 265 2.3.1 ST900SE Small Controller Rack Figure 5 – ST900SE The ST900SE is a small controller intended for use outside the UK. It uses an 11” rack and its Lamp Switch cards do not include any lamp monitoring. 2.4 Fitting the Controlle...
Page 25 - Mains Input; MDU; max load; CPU
ST900 Family General Handbook 667/HB/32900/000 Issue 12 Page 25 of 265 2.5 Mains Input WARNING W hen considering the connection of the controller to the incoming mains supply, it is important to verify from the supplier that the mains supply short-circuit current does NOT exceed 16,000 Amps. If the ...
Page 27 - Intelligent Detector Backplane
ST900 Family General Handbook 667/HB/32900/000 Issue 12 Page 27 of 265 2.9 Intelligent Detector Backplane The Intelligent Detector Backplane provides an interface for up to 4 Loop Detector Cards, each Loop Detector Card connecting to up to 4 loops. The Intelligent Detector Backplane connects to the ...
Page 28 - Maximum Number of I/O Cards and Intelligent Detector Backplanes; ports
ST900 Family General Handbook 667/HB/32900/000 Issue 12 Page 28 of 265 2.10 Maximum Number of I/O Cards and Intelligent Detector Backplanes The total number of I/O cards and Intelligent Detector Backplanes that can be fitted to the ST900 Controller is limited by the current capability of the power s...
Page 30 - Bright; Table 3 – ST900 Lamp Load Per Aspect (Watts)
ST900 Family General Handbook 667/HB/32900/000 Issue 12 Page 30 of 265 2.11 Controller Load Power Consumption & Dimming Transformer Selection This section describes the method used to determine that the controller can supply the total lamp load required, how to select the correct dimming transfo...
Page 31 - Red/Green Nearside if using audio/tactile equipment OR
ST900 Family General Handbook 667/HB/32900/000 Issue 12 Page 31 of 265 Note 1. The power ratings in table 3 above allow for the additional losses in the transformers required (described below). These power ratings are indicative for the purpose of selection of the correct size of dimming transformer...
Page 32 - Max; Table 4 – ST900 Lamp Drive Capability
ST900 Family General Handbook 667/HB/32900/000 Issue 12 Page 32 of 265 2.11.2 Lamp Drive Capability The following table gives the lamp drive capability of the controller as a whole, each ‘Phase Driver’ (or ‘Lamp Switch’) card and each aspect. The ‘W atts’ and ‘Lamps’ columns are equivalents for the ...
Page 34 - ‘No Right Turn’
ST900 Family General Handbook 667/HB/32900/000 Issue 12 Page 34 of 265 A A A B B C C C D D E E ‘No Right Turn’ Regulatory Sign A B C STAGE 2 STAGE 1 STAGE 3 D E Traffic Red / Amber / Green Signal (Main) Traffic Red / Amber / Green Signal (Secondary) Pedestrian Red / Green Signal. Pedestrian Wait Ind...
Page 35 - Selection of Dimming Transformer; One lamp per signal head @ 63W x 12 signal heads; Table 5 – Selection of ST900 Dimming Transformer
ST900 Family General Handbook 667/HB/32900/000 Issue 12 Page 35 of 265 2.11.3 Selection of Dimming Transformer In order to select the correct dimming transformer, the total average signal Lamp Power is required. See Table 3 on page 30 for the power taken by the different types of lamps. W hen select...
Page 36 - Intersection’s Power Requirements for Running Costs Estimate
ST900 Family General Handbook 667/HB/32900/000 Issue 12 Page 36 of 265 Intersection’s Power Requirements for Running Costs Estimate 2.11.3.1 Introduction The following worked example is based upon a 230/240V mains’ supply. Firstly the Total average lamp power for the junction is calculated. Secondly...
Page 37 - Total Average Junction Power
ST900 Family General Handbook 667/HB/32900/000 Issue 12 Page 37 of 265 2.11.3.4 Total Average Junction Power For the total average junction power to aid local authorities with running cost estimates, the total average lamp power must be added to the controller average power. Total average Junction p...
Page 38 - In the ST900 controller, the MDU is; not; used to power any Loop; Table 6 – ST900 Detector PSU Selection; Kit Part Number
ST900 Family General Handbook 667/HB/32900/000 Issue 12 Page 38 of 265 maximum number of each type of detector that can be supported by each type of transformer is shown in the table below. Note In the ST900 controller, the MDU is not used to power any Loop Detector Cards. 6 6 7 /1 /2 7 8 5 3 /0 0 0...
Page 39 - pedestrian green signal)
ST900 Family General Handbook 667/HB/32900/000 Issue 12 Page 39 of 265 2.11.5 Audible Supplies The Audible power supplies on the ST900 are designed to provide a DC voltage between 10V and 24V, and typically provide 50mA at 18V DC. This is provided using the Audible Supply Kit. See the ST900 Installa...
Page 40 - W idth; Table 7 – Size and Weight of ST900; Environmental Conditions
ST900 Family General Handbook 667/HB/32900/000 Issue 12 Page 40 of 265 2.12 Outercase The ST900 Outercase is a single sided access cabinet with the following dimensions: Height (above ground level) 1160mm W idth 725mm Depth 420mm Approximate weight of bare outercase 30Kg Approximate weight with a 16...
Page 42 - An HPU card distributes the 48V lamp supply from the Lamp Supply
ST900 Family General Handbook 667/HB/32900/000 Issue 12 Page 42 of 265 and connect to Backplanes that allow direct termination of the street cabling, avoiding the use of termination blocks and soft wire kits. An HPU card distributes the 48V lamp supply from the Lamp Supply Transformer to the LSLS ca...
Page 43 - Figure 7 – ST900 ELV System Overview
ST900 Family General Handbook 667/HB/32900/000 Issue 12 Page 43 of 265 Figure 7 – ST900 ELV System Overview
Page 44 - ELV Controller Primary Cabinet
ST900 Family General Handbook 667/HB/32900/000 Issue 12 Page 44 of 265 3.2 ELV Controller Primary Cabinet Figure 8 – ST900 ELV Controller Cabinet – View of right side
Page 45 - Figure 9 – ST900 ELV Controller Cabinet – View of left side; HPU
ST900 Family General Handbook 667/HB/32900/000 Issue 12 Page 45 of 265 Figure 9 – ST900 ELV Controller Cabinet – View of left side Figure 10 – ST900 ELV Cabinet arrangement with swing frame open LSLS3 HPU Lamp Supply Transformer
Page 46 - ELV Controller Expansion Cabinet
ST900 Family General Handbook 667/HB/32900/000 Issue 12 Page 46 of 265 3.3 ELV Controller Expansion Cabinet For large junctions, it may be necessary to fit an expansion cabinet, adjacent to the primary cabinet. The Expansion Cabinet Kit does not have a connection to the mains supply and is typically...
Page 47 - Figure 12 – ST900 ELV Rack for fitting in Alternative Cabinets (rear)
ST900 Family General Handbook 667/HB/32900/000 Issue 12 Page 47 of 265 Figure 11 – ST900 ELV Rack for fitting in Alternative Cabinets (front) Figure 12 – ST900 ELV Rack for fitting in Alternative Cabinets (rear)
Page 48 - Lamp Supply Transformer; Nominal Voltage Minimum; ** Available from issue 4 onwards of the Lamp Supply Transformer
ST900 Family General Handbook 667/HB/32900/000 Issue 12 Page 48 of 265 3.5 Mains Input WARNING W hen considering the connection of the controller to the incoming mains supply, it is important to verify from the supplier that the mains supply short-circuit current does NOT exceed 16,000 Amps. If the ...
Page 50 - Cabinet
ST900 Family General Handbook 667/HB/32900/000 Issue 12 Page 50 of 265 3.7.4 Fitting Two HPU If the total lamp load exceeds 20A or more than 3 LSLS cards are required, then two transformers and two HPU are fitted and the following options are available: Cabinet HPU1 & HPU2 Option 1 Option 2 Opti...
Page 51 - LPU
ST900 Family General Handbook 667/HB/32900/000 Issue 12 Page 51 of 265 3.8 LPU The LPU (Logic Power Unit) is powered by the Mains 230V AC supply (or by the Mains 110V AC supply, when the ELV transformer is wired for 110V or 120V input). A switch-mode power supply mounted in the LPU produces +5V and ...
Page 56 - including; Table 11 – ST900 ELV Lamp Drive Capability
ST900 Family General Handbook 667/HB/32900/000 Issue 12 Page 56 of 265 3.14.2 Lamp Drive Capability The following table gives the lamp drive capability of the controller as a whole, each ‘Phase Driver’ (or ‘Lamp Switch’) card and each aspect. The ‘W atts’ and ‘Lamps’ columns are equivalents for the ...
Page 57 - Maximum; Table 12 – LSLS Output Capability; IMPORTANT
ST900 Family General Handbook 667/HB/32900/000 Issue 12 Page 57 of 265 3.14.3 LSLS Output Capability One LSLS output can drive, and one sensor can monitor, the following loads: Output Type Maximum Quantity 1 Lamp Monitoring 2 Helios ELV (vehicular or far-side ped) 8 Yes STC Red/Green Nearside 5 4 Ye...
Page 58 - Lamp Supply Transformer and Power Consumption Example; Figure 13 – Theoretical Junction (ST900 ELV)
ST900 Family General Handbook 667/HB/32900/000 Issue 12 Page 58 of 265 667/SU/32900/000 for information on the compatible versions. IMPORTANT W hen signals are required to be lamp monitored, signal types must not be mixed. Specifically, when lamp monitoring Nearside Signals, it is not allowed to con...
Page 59 - Selection of Lamp Supply Transformer
ST900 Family General Handbook 667/HB/32900/000 Issue 12 Page 59 of 265 3.14.5 Selection of Lamp Supply Transformer In order to select the number of lamp supply transformers, the total average signal Lamp Power is required. See Table 10 on page 55 for the power taken by the different types of lamps. ...
Page 60 - Introduction; Total Average Lamp Power; wait indicators illuminated at 7W (4 x 7w); Total Average Controller Power
ST900 Family General Handbook 667/HB/32900/000 Issue 12 Page 60 of 265 at any one time. Since the short 2 second Red plus Amber period nev er occurs on many signals at the same time, the transformer is designed to cope with a short period of ov erload. A range is giv en because of the range on the n...
Page 62 - Table 14 – ST900 ELV Detector PSU Selection; Table 15 – ST900 ELV Detector Transformers
ST900 Family General Handbook 667/HB/32900/000 Issue 12 Page 62 of 265 detector power supply kit. The maximum number of each type of detector that can be supported by each power supply is shown in the table below. H P U -2 4 V D C 2 .8 A 6 6 7 /1 /3 3 0 7 5 /0 0 0 -2 4 V D C 5 0 V A / 2 .0 A 6 6 7 /...
Page 63 - The following tactile units are recommended.; Combined motor and drive module. No enable input. No fault output
ST900 Family General Handbook 667/HB/32900/000 Issue 12 Page 63 of 265 3.14.8 Audible Supplies The ELV Audible Driver Module derives the power to drive the Audible sounders directly from the green drive of the LSLS card. Audible sounders used must operate correctly over the voltage range 10 to 24V D...
Page 64 - Fault Output; Tactile not powered
ST900 Family General Handbook 667/HB/32900/000 Issue 12 Page 64 of 265 either a separate pedestrian phase must be configured to run in parallel with the usual pedestrian phase, but with the required timings modified or a tactile with an enable input must be used. Tactiles with an enable input can be...
Page 65 - 0 ELV Regulatory Sign Expansion Kit
ST900 Family General Handbook 667/HB/32900/000 Issue 12 Page 65 of 265 3.14.10 ELV Regulatory Sign Expansion Kit The ELV Regulatory Sign Expansion Kit derives power from the controller mains supply to power additional ELV regulatory signs. This kit is required if the total number of regulatory signs...
Page 66 - essential
ST900 Family General Handbook 667/HB/32900/000 Issue 12 Page 66 of 265 3.15 Cabling W hen estimating cable core and controller equipment requirements for the ST900 ELV Controller the maximum cable lengths defined in the following tables on pages 69 and 70 must be complied with. The voltage drop in t...
Page 67 - Common return cable for all; BUT; Green aspect return cable 12W at 180metres = 2 cores
ST900 Family General Handbook 667/HB/32900/000 Issue 12 Page 67 of 265 Common return cable for all BUT green aspect: 24W (6W +18W ) at 180 metres = 3 cores Green aspect return cable 12W at 180metres = 2 cores 4. If required to minimise core usage it is permissible to common signal returns on the sam...
Page 68 - NOT; green as this; remain separate from; must; be provided with a separate drive and return core.; must
ST900 Family General Handbook 667/HB/32900/000 Issue 12 Page 68 of 265 lengths using the table, each tactile unit should be considered to be a 12W load. If required to reduce core usage, tactile units may share a return core with any Red/Amber LED signal return core on the same pole ( NOT green as t...
Page 69 - Cable
ST900 Family General Handbook 667/HB/32900/000 Issue 10 Page 69 of 265 Note NO MORE than 3 cores should be connected in parallel. The numbers in the cells within the tables indicate the number of cores required to meet the voltage drop requirement. Length of Cable Run (metres) – 1.0 mm 2 Cable 5 m 1...
Page 71 - Table 18 – Size and Weight of ST900 ELV; Environmental Conditions
ST900 Family General Handbook 667/HB/32900/000 Issue 10 Page 71 of 265 3.16 Outercase The ST900 ELV Outercase is a single sided access cabinet with the following dimensions: Height (above ground level) 1160mm W idth 725mm Depth 420mm Approximate weight of bare outercase 30Kg Approximate weight with ...
Page 72 - Controller Operation; ‘On-street’ detection equipment and pedestrian push-buttons; Phases
ST900 Family General Handbook 667/HB/32900/000 Issue 10 Page 72 of 265 4 4 G G E E N N E E R R I I C C S S P P E E C C I I F F I I C C A A T T I I O O N N S S 4.1 Controller Operation In common with the ST800, the ST900 and ST900 ELV Controllers are phase oriented. Timings and demands are associated...
Page 73 - General Timing Periods; Pedestrian Clearance Periods; In the UK, the Leaving Amber time is fixed at 3 seconds.
ST900 Family General Handbook 667/HB/32900/000 Issue 10 Page 73 of 265 connected to the controller’s handset port, the ST900 controller configuration utility IC4 loads the configuration data into the controller, negating the need for an EPROM. In the UK some timings considered to be fixed timings ca...
Page 74 - Table 19 – ST900 Family Timings Summary
ST900 Family General Handbook 667/HB/32900/000 Issue 10 Page 74 of 265 Lower Limit (sec) Upper Limit (sec) Resol’n (sec) Config’ble Lower Limit Config’ble Upper Limit Linking Timing Period Linked pedestrian controller release (conditioning timer) 0 255 1 1 per timer 1 per timer C.L.F. group offset 0...
Page 75 - Modes of Operation
ST900 Family General Handbook 667/HB/32900/000 Issue 10 Page 75 of 265 4.4.1 Tolerance All timings, except CLF and Master Time Clock, are derived from the crystal frequency which has a tolerance of 35 parts per million. An additional error due to random signals not being synchronised to the clock pu...
Page 77 - Facilities; In all modes, the controller monitors the following every 200ms:
ST900 Family General Handbook 667/HB/32900/000 Issue 10 Page 77 of 265 5 5 S S T T A A G G E E S S 5.1 Facilities There are up to 32 stages (0 to 31) available for use. Stage 0 is normally used as a manual all-red facility. It may be used as a traffic stage. Stage 1 normally is the start-up stage an...
Page 78 - Are there demands for phases in this stage or for the stage itself?
ST900 Family General Handbook 667/HB/32900/000 Issue 10 Page 78 of 265 Change Facility” allows the controller to look for a new stage while the controller is still moving between two stages. In order to select the next stage, the “SUGGESTED STAGE”, the controller goes through the following decision-...
Page 79 - If YES, set “Suggested Stage” equal to this stage.; Effects of Modes other than VA on Stage Change Algorithm
ST900 Family General Handbook 667/HB/32900/000 Issue 10 Page 79 of 265 If NO, add the demanded phases in this stage (or the stage itself if the stage is demanded) to “Phases & stages to Get right of way”. Then try the next stage in cyclic order (starting at Step 1). 5. W ill additional demanded ...
Page 80 - Usage of Stage Movement Restriction Tables
ST900 Family General Handbook 667/HB/32900/000 Issue 10 Page 80 of 265 b) Masking out phase demands, c) Inserting stage demands, d) Masking out extensions, i.e. causing them to be ignored, e) Suspending maximum green times. Thus for the above-mentioned modes, specific stages may be requested, and th...
Page 82 - Changing to no ROW - AMBER
ST900 Family General Handbook 667/HB/32900/000 Issue 10 Page 82 of 265 6 6 P P H H A A S S E E S S 6.1 Facilities There are up to 32 phases (A to Z and A2 to F2) available for use as any of the following types of phase: Traffic Pedestrian Green arrow, filter or indicative LRT vehicle Dummy Switched ...
Page 83 - at no ROW - RED MAN
ST900 Family General Handbook 667/HB/32900/000 Issue 10 Page 83 of 265 6.2.2 Pedestrian Phase A pedestrian phase controls pedestrian movements via a 2-aspect signal comprising red and green man plus a W AIT indicator normally driven from the amber aspect. The standard signal sequence is as follows: ...
Page 84 - at ROW (treated as a green for conflict purposes) - proceed
ST900 Family General Handbook 667/HB/32900/000 Issue 10 Page 84 of 265 Note: it is a requirement in the U.K. that if audible and/or tactile indications are fitted, the controller must also include the Red Lamp Monitoring facility, see section 38.2. 6.2.2.2 High Voltage Audible Indication (Not UK) Th...
Page 86 - Conflicting Phases
ST900 Family General Handbook 667/HB/32900/000 Issue 10 Page 86 of 265 6.2.6 Switched Sign Aspect A switched sign aspect is an aspect of a hardware phase that is not allocated to a stage but is illuminated and extinguished at certain times of day or when specific conditions occur. The normal functio...
Page 87 - Timing Periods
ST900 Family General Handbook 667/HB/32900/000 Issue 10 Page 87 of 265 Opposing phases that gain right of way at the same time will not start each other’s maximum green timers since the demands for those phases are disregarded while they are at right of way. Therefore, each phase is usually configur...
Page 91 - (Facility constructed in Special Conditioning for Non UK Only)
ST900 Family General Handbook 667/HB/32900/000 Issue 10 Page 91 of 265 The timing range is 0 to 199 seconds in 1-second steps with one time and minimum range limit for each phase-to-phase transition. See section 6.11 for information on the inter-greens to and from pedestrian phases. 6.5.8 Starting I...
Page 92 - Conditions of Appearance
ST900 Family General Handbook 667/HB/32900/000 Issue 10 Page 92 of 265 If the limit green override code is sent from the ATC computer during computer stage control mode, the limit green watchdog timer is held reset. In the event of a limit green watchdog timer timing out before its associated phase ...
Page 94 - Fixed Phases
ST900 Family General Handbook 667/HB/32900/000 Issue 10 Page 94 of 265 The timing range of the window period is 0 to 255 seconds in 1-second steps. There is one time for each stage. The programmed value of the window timer may be changed via the handset using the PW N command. W ith Appearance Types...
Page 95 - Early Termination of Phases
ST900 Family General Handbook 667/HB/32900/000 Issue 10 Page 95 of 265 6.9.3 Termination Type 2 The phase terminates when a specified associated phase loses ROW. The associated phase must be a fixed phase. The normal use for this type of phase is an indicative green arrow. 6.10 Early Termination of ...
Page 96 - Table 20 – Summary of Pedestrian Phase Types
ST900 Family General Handbook 667/HB/32900/000 Issue 10 Page 96 of 265 The following table summarises the facilities of the various types of pedestrian crossing available. Type of Crossing Ped. Signal Position Veh To Ped I/G (6.11.4) SDE/SA Clearance (see 9.4.2) Ped to Veh Clearance Display (6.11.1 ...
Page 97 - Figure 15 – Pelican Sequence
ST900 Family General Handbook 667/HB/32900/000 Issue 10 Page 97 of 265 6.11.1 UK ‘Pelican’ Crossing A UK ‘Pelican’ crossing is a stand-alone pedestrian stream containing one vehicle and one pedestrian phase. The vehicle phase may control the signals of one or more vehicle approaches. The signals nor...
Page 98 - Figure 16 – Pedestrian Far Side Sequence
ST900 Family General Handbook 667/HB/32900/000 Issue 10 Page 98 of 265 The vehicle to pedestrian inter-green on a stand-alone crossing is again controlled by PAR, however if the far-sided pedestrian phase is part of an intersection stream, this period is controlled by the IGN inter-green command. Se...
Page 99 - OR
ST900 Family General Handbook 667/HB/32900/000 Issue 10 Page 99 of 265 The far side pedestrian lamp sequence includes an extendable blackout period that extends the inter-green time between the pedestrian phase and any conflicting vehicle phases. The complete inter-green consists of: a fixed minimum...
Page 100 - where ‘p’ is the pedestrian phase letter; Figure 17 – Pedestrian Near Side Sequence
ST900 Family General Handbook 667/HB/32900/000 Issue 10 Page 100 of 265 6.11.3 Near Side Pedestrian Crossing This type of crossing can be used at both intersections and at stand-alone pedestrian crossings (also known as ‘mid-block’ crossings). The pedestrian signals are mounted on the ‘near side’ of...
Page 101 - Figure 18 – Pedestrian Clearance and Intergreen Times
ST900 Family General Handbook 667/HB/32900/000 Issue 10 Page 101 of 265 The near side pedestrian sequence includes an extendable all-red period which extends the inter-green time between the pedestrian phase and any conflicting vehicle phases. The complete inter-green consists of: a fixed minimum re...
Page 102 - Figure 19 – Vehicle to Pedestrian Intergreen
ST900 Family General Handbook 667/HB/32900/000 Issue 10 Page 102 of 265 However, if the configured inter-green time to one vehicle phase on an intersection is increased to say seven seconds (VEH2), it controls the actual inter-green time and thus delays the vehicle phase by an extra one second. Note...
Page 103 - MIN; Figure 20 – Fixed Pedestrian Clearance Period
ST900 Family General Handbook 667/HB/32900/000 Issue 10 Page 103 of 265 vehicle period mode (see section 23.3) and for a ‘linked’ changed, UTC, local link or CLF. However, if the speed discrimination or speed assessment facility is enabled on the stream (because of the higher speed of the traffic), ...
Page 105 - General Description
ST900 Family General Handbook 667/HB/32900/000 Issue 10 Page 105 of 265 7 7 D D E E M M A A N N D D S S A A N N D D E E X X T T E E N N S S I I O O N N S S 7.1 General Description Demands may be inserted for phases or stages, but extensions may only be inserted for phases. Demands will only be acted...
Page 107 - Pedestrian Demand Control
ST900 Family General Handbook 667/HB/32900/000 Issue 10 Page 107 of 265 7.3.6 UTC Demand Bits These provide simulated on-street demands and/or extensions from the UTC computer. In the case of pedestrian demands, the W AIT indicator will be illuminated on receipt of the demand unless specifically req...
Page 108 - Figure 21 – Pedestrian Demand Processing
ST900 Family General Handbook 667/HB/32900/000 Issue 10 Page 108 of 265 P H A S E D E M A N D P R O C E S S IN G I P X D E M A N D AND DEMAND BUT NOT KERBSIDE K E R B S ID E AND DEMAND AND KERBSIDE KERBSIDE ACTIVE OR OR OR PBNACT (ENG 254) KBSACT (ENG 255) 1W TCTRL OR SET PBKLAT (ENG 256) CLR ROW OR...
Page 109 - unlatched demand; latched demand; for the pedestrian phase is accepted and the wait / demand
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 109 of 265 7.4.2 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 con...
Page 111 - Operation during Certain Modes; when a certain UTC demand bit is applied.
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 111 of 265 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, al...
Page 113 - Figure 22 – Call/Cancel Example
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 113 of 265 8 8 C C A A L L L L / / C C A A N N C C E E L L There are up to 8 call/cancel units (0 to 7) available which may be used for turning movements or in conjunction with queue loops or switched facilities. The input to a unit must r...
Page 115 - Figure 23 – Double SDE Layout
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 115 of 265 9 9 H H I I G G H H S S P P E E E E D D V V E E H H I I C C L L E E D D E E T T E E C C T T I I O O N N To provide this facility, specially positioned vehicle loops are required. These should be connected to the Controller throu...
Page 116 - Figure 24 – Triple SDE Layout; Figure 25 – SA Layout; – 5 seconds; Assessors Available; There are up to 16 assessors (0 to 15) available for use on SDE or SA.
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 116 of 265 Two assessors are used, an outer and an inner. The outer is situated 159 metres from the stop line and the inner 91 metres. The outer assessor has a threshold velocity of 45mph / 72kph and the inner 35mph / 56kph. Each assessor ...
Page 118 - SDE/SA Parallel Stage Streaming Facilities
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 118 of 265 Note that if the inter-green is not dependent on the SDE/SA phase inter-green time (because another losing phase has a longer inter-green time), the extra clearance period may not actually delay the appearance of the gaining pha...
Page 119 - There are three methods of achieving an all-red display:
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 119 of 265 1 1 0 0 A A L L L L - - R R E E D D D D I I S S P P L L A A Y Y S S There are three methods of achieving an all-red display: By using an ‘all-red’ stage. By using the ‘extend all-red’ facility. By using ‘on-crossing detectors’ o...
Page 120 - Red Extension During Interstage
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 120 of 265 10.2 Red Extension During Interstage 10.2.1 Description The occupation of an All Red detector loop during its specified stage to stage movement will generate an All Red extension. W hen using priority mode to provide priority fa...
Page 122 - General Description
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 122 of 265 1 1 1 1 P P H H A A S S E E D D E E L L A A Y Y S S 11.1 General Description In order to gain more efficient use of phases during stage to stage transitions, it may be required to delay specific phases from losing or gaining ROW...
Page 123 - Figure 26 – Delay Phase Losing Right Of Way
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 123 of 265 GREEN... ...GREEN A B E F ...Stage 1 Stage 2... Interstage is 6s Intergreen from Phase A to Phases E and F is 6 seconds.Intergreen from Phase B to Phases E and F is 5 seconds. (a) A B E F ...Stage 1 Stage 2... Interstage still 6...
Page 124 - Stage 1; Figure 27 – Delay Phase Gaining Right Of Way
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 124 of 265 11.3 Phases Gaining Right-Of-Way The inter-green times from conflicting phases determines at which point a phase gains ROW . If phases gaining ROW have different inter-green times from a conflicting phase, they will gain ROW at ...
Page 125 - Delay Timer; Plus the required delay:; Phase Delay Handset Commands
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 125 of 265 If phases E and F are required to always appear at red/amber and then green together, a gaining phase delay can be used to delay the appearance of phase E. If phase E is delayed by 4 seconds on the move from stage 2 to stage 4, ...
Page 126 - Effect of Red Extensions and SDE/SA
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 126 of 265 For example, if the entries 0 to 9 were already allocated and we needed to set-up another phase delay which delays phase E for 4 seconds on the move from stage 2 to stage 4, we would enter: DFZ 10=E DPG 10=4 DMF 10=2 DMT 10=4 11...
Page 130 - manually cleared allowing the stream back on.; Normal Start-Up Sequence
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 130 of 265 1 1 3 3 S S T T A A R R T T - - U U P P M M O O D D E E The start-up mode is entered to produce a safe ‘signals on sequence’ when any of the following conditions occur: The AC supply to the controller is switched on or restored ...
Page 131 - Start-Up Parallel Stage Streaming Facilities
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 131 of 265 13.1.1 Start-Up into Part-Time Mode If the first step of the start-up sequence matches the part-time state (e.g. both request blackout or the same flashing pattern), the controller will immediately enter the part-time state on p...
Page 132 - General Description
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 132 of 265 1 1 4 4 P P A A R R T T - - T T I I M M E E M M O O D D E E 14.1 General Description W hen a stream is in ‘part-time’ mode, all the signals in the stream are usually extinguished allowing the traffic to flow normally. For exampl...
Page 133 - Part-Time Mode Parallel Stage Streaming Facilities
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 133 of 265 W hen part-time mode is no longer requested, i.e. when it is time for the controller to switch back on, the controller enters start-up mode to ensure normal operations resume in a safe manner, see section 13. 14.3 Part-Time Mode...
Page 134 - UTC Introduction; unit (for MOVA or UTMC for example) is via the enhanced
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 134 of 265 1 1 5 5 U U R R B B A A N N T T R R A A F F F F I I C C C C O O N N T T R R O O L L ( ( U U T T C C ) ) 15.1 UTC Introduction In UTC mode, operations are controlled and monitored by the central computer of an Urban Traffic Contr...
Page 136 - Control and Reply Bits
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 136 of 265 15.3 Control and Reply Bits UTC Control Bits UTC Reply Bits Bit Section Title Bit Section Title F1, F2… 15.3.1 Forces G1, G2… 15.3.2 Stage confirm DX 15.3.3 Demands: Common SD1, SD2… 15.3.4 Stage demand confirm D1, D2… 15.3.3 De...
Page 139 - GX - Open circuit when the vehicle is at right of way
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 139 of 265 Note that the demand confirm bit for the pedestrian stage on a stand-alone stream is usually named ‘W I’ and returns the state of the wait indicator, see section 15.3.6. 15.3.5 Hold Pedestrian Stream Vehicle (PV) The ‘PV’ contro...
Page 142 - Hour Minutes
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 142 of 265 15.3.23 RTC Synchronisation (TS1) A ‘TS1’ control bit may be programmed to cause the master time clock to be synchronised at 8, 18, 28, 38, 48 or 58 minutes past each hour. The synchronisation code is transmitted at 0101 levels,...
Page 143 - Miscellaneous Reply Bits
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 143 of 265 15.3.27 Transmission Confirm (TC) The ‘TC’ input is not a transmitted control bit but an output from the OTU to the controller. Its presence indicates that valid transmission is being received from the central computer. No contr...
Page 144 - UTC Mode Conditions
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 144 of 265 15.4.5 First Group Confirm (GR1) A ‘GR1’ reply bit may be returned to indicate that the first group, i.e. Group 0, of the current CLF plan is active, regardless of whether CLF is the current mode or not. Note that the first CLF ...
Page 145 - Method of Plan Introduction; a) One ‘G’ bit for more than one stage. Normally the ‘G’ bit does not stay
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 145 of 265 Under Option 2, all stages are demand and extension dependent. A stage change will not occur unless there are no extensions for the current stage or the ‘F’ bit is lifted and there is a demand for the next stage with or without ...
Page 146 - UTC Parallel Stage Streaming Facilities
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 146 of 265 15.10 UTC Parallel Stage Streaming Facilities UTC mode can be active on any or all of the streams. Each stream will normally enter UTC mode and respond to the force bits configured for stages in that stream independently of the ...
Page 147 - skipped may be compensated next time they have right of way.
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 147 of 265 1 1 6 6 P P R R I I O O R R I I T T Y Y A A N N D D E E M M E E R R G G E E N N C C Y Y V V E E H H I I C C L L E E M M O O D D E E 16.1 Introduction Priority and Emergency Vehicle modes provide a facility in which appropriate v...
Page 148 - i) The Priority Units are allocated to Priority mode first.
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 148 of 265 16.2 Facilities Both Priority and Emergency Vehicle modes have the same facilities unless otherwise stated. These facilities and timings are listed below and can be accessed by the handset commands in brackets. 16.2.1 Priority U...
Page 151 - Figure 28 – Phase Compensation
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 151 of 265 A priority demand stored during the ‘inhibit period’ will be cancelled if the demanded phase is served at the normal VA level during the ‘inhibit period’ (this will also cancel the ‘inhibit period’). The ‘Inhibit Period’ may be ...
Page 153 - Precedence Levels
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 153 of 265 ‘Good’ activations are activations of the priority input that do not remain active longer than the Monitor Time (PMT), each separated by a duration longer than the Gap Time (PVG). The values for priority DFM reset (PDR) are as f...
Page 154 - Changes from a Lower to a Higher Priority Level
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 154 of 265 16.3.2 Changes from a Lower to a Higher Priority Level A change from Bus Priority mode to Emergency Vehicle mode will occur on receipt of a priority demand or extension for an Emergency Vehicle priority unit. A change from other...
Page 155 - the request for priority mode and terminating any of its actions.; Visual Indications
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 155 of 265 If the priority mode is configured lower priority than UTC mode, while force signals from the UTC instation are being received and the controller is in UTC mode, requests for the priority mode will be ignored. However, if the pr...
Page 156 - Use of Priority Mode for Control in Light Rail Transit Systems; Figure 29 – Priority Demand Order
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 156 of 265 16.6 Interfaces 16.6.1 Inputs An input channel may be provided such that Condition ‘0’ will cause the bus priority facilities to be isolated. Bus priority demands need not be stored. The input will take effect irrespective of th...
Page 157 - Serving Priority Demands in Order of Receipt
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 157 of 265 16.7.1 Serving Priority Demands in Order of Receipt In general the controller will serve the Priority Demands cyclically. On receipt of one or more ‘Priority Demands’ the controller will move to the next stage cyclically which s...
Page 158 - Request Delays
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 158 of 265 ensure that the LRV clears the junction. This is again achieved using the special conditioning facility. 16.8 Request Delays There are two delay times that can be configured to allow for the travelling time of the LRV from the r...
Page 159 - Detailed Operation; i) The controller is in a higher priority mode,
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 159 of 265 1 1 7 7 H H U U R R R R Y Y C C A A L L L L M M O O D D E E 17.1 Introduction A ‘hurry call’ demand gives precedence to a particular stage to ensure that a green signal is given to certain vehicles. Hurry calls may be used at ju...
Page 160 - Additional Facilities
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 160 of 265 expire. During the move to the called stage, any active inter-green / all-red extensions are implemented. W ith the hurry call stage active, the condition is held for a pre-set period, the hurry call hold period (HHC), irrespect...
Page 161 - Hurry Call Parallel Stage Streaming Facilities
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 161 of 265 request, e.g. Fire station, or it may be used as a confirm signal for a UTC system. 17.4 Hurry Call Parallel Stage Streaming Facilities Eight Hurry Call units are available, numbered 0 to 7. Each is assigned to one stage and thu...
Page 162 - Control from a Remote Push-Button; Control from a Queue Detector
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 162 of 265 Note: If the Hurry Call is inserted from a momentary push-button it is advisable to use a Hurry Call Confirm output in the above instances, so that the sender knows if the Hurry Call has been accepted. 17.6 Control from a Remote...
Page 163 - Allocation of Stages to Buttons
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 163 of 265 1 1 8 8 S S E E L L E E C C T T E E D D M M A A N N U U A A L L C C O O N N T T R R O O L L 18.1 Manual Mode For the “Manual Step-On” facility, see section 19. Manual mode selected on the Manual Panel (see section 29.8) is recog...
Page 164 - Manual Control Parallel Stage Streaming Facilities
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 164 of 265 If a stage not assigned to any button is active, none of the indicators will be illuminated. If this is the case when manual mode is first selected, the stage will continue until a new stage is selected. 18.3 Manual Control Para...
Page 166 - Manual Step-On Mode Parallel Stage Streaming Facilities
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 166 of 265 (b) Stay in one stage for a fixed period defined in the configuration and then automatically move to another pre-defined stage. The controller is then ready to respond to a further push button operation. The user may change the ...
Page 168 - CLF Introduction
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 168 of 265 2 2 1 1 C C A A B B L L E E L L E E S S S S L L I I N N K K I I N N G G F F A A C C I I L L I I T T Y Y ( ( C C L L F F ) ) M M O O D D E E 21.1 CLF Introduction The ‘Cableless Linking Facility’ (CLF) allows a method of linking ...
Page 169 - Group Influences; DEMAND DEPENDENT MOVE - requests an IMMEDIATE MOVE to a specified
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 169 of 265 The timetable settings that are programmed may be changed via the handset using the TSW or TTB command. If the group timings, group influences and/or timetable settings are not known at the time that the controller is configured...
Page 170 - Functions 8 and 9 only apply to stand-alone pedestrian streams:; The Base Time CLF System; for example, either every year or for a
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 170 of 265 Functions 8 and 9 only apply to stand-alone pedestrian streams: 8. INHIBIT PEDESTRIAN - prevent the appearance of the pedestrian phase and hold the vehicle phase at right of way. Specify any stage in the stream. 9. ALLOW PEDESTR...
Page 172 - Non Base Time CLF System; Figure 31 – Simple Linked Installation (Morning Peak – Plan 0)
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 172 of 265 If the current plan does not have an exit time configured, but the new plan has an entry time configured, the current plan continues until the new plan reaches its entry time and takes control. The range for the (PLE) entry time...
Page 173 - Figure 32 – Simple Linked Installation (Evening Peak – Plan 1)
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 173 of 265 During morning peaks, traffic flowing into the city centre (C-B-A) is required to meet a succession of signals at green (a ‘green wave’). Typically, free flowing morning peak traffic takes 20 seconds to travel from ‘C’ to ‘B’ an...
Page 176 - italics; CLF Parallel Stage Streaming Facilities
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 176 of 265 Plan 0 A B C Plan 1 A B C (Required Offset) (35) (20) (0) (Required Offset) (0) (19) (46) Group 0 (Main Road) 35 20 0 Group 0 (Main Road) 0 19 46 1 Group 1 (Side Road) 75 15 65 5 35 Group 1 (Side Road) 30 44 71 26 Cycle Time 60 ...
Page 177 - Synchronisation of Cableless Linking Equipment
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 177 of 265 2. The use of the ‘Hold’ and ‘Prevent’ group influences should be avoided if possible, but if not their use, i.e. the group time and Group position within the plan, must be considered carefully. The “GO VA” influence should not ...
Page 178 - A Vehicle Actuated Example; Figure 33 – Example of VA Stage Changes; b) Do all phases that need to keep right of way appear in this stage?
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 178 of 265 2 2 2 2 V V E E H H I I C C L L E E A A C C T T U U A A T T E E D D ( ( V V A A ) ) M M O O D D E E In VA mode the controller monitors all demands, extensions and maximum green timers every 200 ms to select a suggested stage in ...
Page 179 - phase E will suggest the move to stage 2.
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 179 of 265 W hen in Stage 1 Consider Stage 2… a) If there are no demands for phases C and E, ignore stage 2 and check stage 3. Note that there can be no demands for phase B since it is already at right of way. Also note that the demand for...
Page 180 - there are demands for phases A and B) and check stage 2.
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 180 of 265 b) If phases C or E need to keep right of way, ignore stage 1. Since phase B also resides in stage 1, it does not matter if that phase has to keep right of way. c) Stage 3 would service demands for phase D whereas stage 1 would ...
Page 181 - Green-Arrow Restrictions on Vehicle Actuated Mode
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 181 of 265 22.2 Green-Arrow Restrictions on Vehicle Actuated Mode UK requirements dictate that green-arrows do not lose right of way without their associated 3-aspect traffic phase showing the amber leaving period. This places restrictions...
Page 182 - Arterial Reversion
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 182 of 265 Due to this restriction, it is commonly required that stage 2 is prevented unless there is a demand on phase C from the right-turning traffic (and possibly only if there is a demand for the side road as well – see section 22.2.1...
Page 183 - Vehicle Actuated Parallel Stage Streaming Facilities
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 183 of 265 the same dummy phase in each stage, this phase would be specified for reversion allowing the next all-red stage in cyclic order to become active. 22.4 Vehicle Actuated Parallel Stage Streaming Facilities Each stream will move ar...
Page 184 - There are three methods of fixed time working:; Fixed Time Mode; Fixed Time Mode is implemented:; Fixed Time to Current Maximums
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 184 of 265 2 2 3 3 F F I I X X E E D D T T I I M M E E W W O O R R K K I I N N G G M M O O D D E E There are three methods of fixed time working: Fixed Time mode (FT) Fixed Time to Current Maximums (FTCM) Fixed Vehicle Period (FVP) mode on...
Page 185 - Fixed Time Parallel Stage Streaming Facilities; There are two options:
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 185 of 265 W ith Selected Fixed Time to current maximums, when NORMAL mode is restored there will still be demands present for all non-running phases, so no vehicles will be trapped against a red signal. 23.3 Fixed Vehicle Period (FVP) Mod...
Page 187 - ALTERNATIVE
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 187 of 265 2 2 4 4 S S T T A A G G E E M M O O V V E E M M E E N N T T R R E E S S T T R R I I C C T T I I O O N N S S W hen a specific stage change is required not to occur for safety or traffic control reasons, it is possible to restrict...
Page 188 - Prohibited Moves; selecting another stage by means of the appropriate push-button.; Alternative Moves
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 188 of 265 24.1 Prohibited Moves W hen a move to a stage is prohibited and there is a demand for the prohibited stage, the controller will not move to that stage and the current stage will remain active until either of the following happen...
Page 189 - Permitted Moves
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 189 of 265 The ignore move facility is normally only required during modes where it is possible to have stage change conditions present for more than one stage, i.e. VA, Priority, Emergency Vehicle and UTC mode. 24.4 Permitted Moves Permit...
Page 191 - Plan timings for Cableless linking in software (see section 21).
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 191 of 265 2 2 5 5 M M A A S S T T E E R R T T I I M M E E C C L L O O C C K K S S Y Y S S T T E E M M 25.1 Introduction The master time clock system (MTCS) provides the following facilities: - A software clock. - A crystal oscillator and ...
Page 192 - Timetable Resolution
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 192 of 265 25.3 Timetable Resolution CLF plans and timetable events are introduced by timetable settings to a resolution of 1 second. 25.4 Daylight Saving The RTC will advance or retard one hour at 02.00 hours on the date (usually a Sunday...
Page 194 - Plan Change/Event Timetable
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 194 of 265 2 2 6 6 T T H H E E E E V V E E N N T T T T I I M M E E T T A A B B L L E E 26.1 Plan Change/Event Timetable There are 64 entries in the Event Timetable. W ithin each entry the following is specified: The ‘Day Code’, which is a ...
Page 195 - Switch Function Setting
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 195 of 265 26.3 Switch Function Setting The event timetable is introduced by a master time clock timetable setting with a function number of ‘2’. Following the function number 2 in the MTCS timetable will be a ‘Parameter’ number. This para...
Page 197 - Time Switch Event Default States; Time switch Event
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 197 of 265 W hen a stage is deleted, any demands for that stage or for phases within the stage must also be deleted by the same timetable setting, unless the phases appear in other stages. In order to delete current demands and prevent fur...
Page 198 - Table 22 – Time Switch Event Default States
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 198 of 265 Time switch Event Default State (i.e. when no time switch events are active) 26.3.1 Input active Input normal operation (following external influence) 26.3.1 Input inactive Input normal operation (following external influence) 2...
Page 199 - Ignored
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 199 of 265 26.5.2 Special Holiday Periods The Holiday Clock facility allows the period between two dates to be considered as a Special Holiday period. Currently, up to 32 special holiday periods can be configured in advance. Example: The c...
Page 201 - Input; PV1 input line allocation.
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 201 of 265 2 2 7 7 L L I I N N K K I I N N G G 27.1 Repeat Pulses The Siemens Type 900 Controller may be linked to other traffic controllers so that a pulse which occurs, or a pulse which is created by a condition occurring, in one control...
Page 202 - Output; LO
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 202 of 265 Output Bit Local Link Bit Description Power/Lamps Off State Configuration LO ‘Link out’ signal to an adjacent pedestrian crossing, driven by vehicle green (‘1’ = green on) ‘0’ Special conditioning Local link dimming can be confi...
Page 203 - Alternative Signal Sequences (Non UK Only)
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 203 of 265 2 2 8 8 A A L L T T E E R R N N A A T T I I V V E E S S I I G G N N A A L L S S E E Q Q U U E E N N C C E E S S A A N N D D F F L L A A S S H H I I N N G G S S I I G G N N A A L L S S 28.1 Alternative Signal Sequences (Non UK On...
Page 204 - changing to no ROW :; Alternative Start-Up Sequences; Changing to no ROW : FLASHING AMBER
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 204 of 265 changing to no ROW : BLACKOUT or FLASHING GREEN MAN If an amber is required, the amber can be configured in the signal sequence, and if a wait indicator is also required, this has to be programmed as a switched sign phase (see s...
Page 205 - Non UK Signal Sequences
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 205 of 265 Traffic phases: Phases A,B & C Phase D at no ROW : RED RED changing to ROW : RED/AMBER RED/AMBER at ROW : GREEN FLASHING GREEN changing to no ROW : AMBER AMBER The displays that are programmed to flash will do so every time ...
Page 207 - standard; Wig Wag Signals
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 207 of 265 SYRIA: Flashing amber start-up and part-time. Traffic: red - green - amber - red. Ped: standard (with three-second blackout). Supply: 240V 50Hz (Damascus). SRI LANKA: As Bahrain, but with flashing amber start-up. 240V 50Hz. TRIN...
Page 208 - As Wig-W ag configurations are more complex to create than; Figure 35 – Wig-Wag Signal Sequence
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 208 of 265 IMPORTANT: As Wig-W ag configurations are more complex to create than intersection configurations it is strongly recommended that they should only be created by Intersection Engineering at Siemens, Poole. 28.5.2 Flexible activat...
Page 209 - Figure 36 – Wig-Wag Phases and Sensors; Approach 1
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 209 of 265 W ag signals, W ig-W ag Signals are also available with flashing blue aspects (replacing the usual flashing red aspects) for use in these positions. In countries where the UK specification TR2513 does not apply, the amber period...
Page 210 - operation for the controller’s Red Lamp Monitor.; Figure 37 – Wig-Wag Red Lamp Faults
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 210 of 265 28.5.5 Red Lamp Monitoring W ig-W ag signals are typically arranged in pairs, one pair of signals for each approach; see Figure 36 on page 209. It is required by TR2513A that red lamp failures are counted independently on each W...
Page 211 - Figure 38 – Flashing Amber Wig-Wag Signal
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 211 of 265 28.5.6 Flashing Amber Wig-Wags Figure 38 – Flashing Amber Wig-Wag Signal In addition to the flashing red W ig-W ag Signals shown previously, the controller is capable of driving and monitoring flashing amber W ig-W ag Signals, e...
Page 212 - Logic Conditions
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 212 of 265 2 2 9 9 I I N N P P U U T T S S A A N N D D O O U U T T P P U U T T S S 29.1 Inputs (I/P) Inputs into the controller may include the following (refer to the sections given for more information): (i) Section 7 – Demands and exten...
Page 213 - Port Allocation
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 213 of 265 29.4 Ports The ports of the controller provide a means of connecting the hardware of the input and output signals to the controller software. Each port normally consists of 8 bits (0 to 7) which must be either all inputs or all ...
Page 214 - For example: DFM Timeset 0 DFM Timeset 1 DFM Timeset 2 DFM Timeset 3
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 214 of 265 Clearing DFM Faults: If the RFL=1 or the RDF=1 handset command is entered, or the DFM Reset push-button on the Manual panel (if configured) is operated, the DFM fault will be cleared assuming the controller has seen the input ch...
Page 216 - Signal Dimming
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 216 of 265 29.8 Signal Dimming 29.8.1 Solar Cell Signal dimming is provided to dim the signals during darkness hours under control of a photoelectric solar cell mounted on a signal head. 29.8.2 Solar Cell – ST900 and ST900LED (230V Operati...
Page 217 - Standard Facilities (Intersection Controller); – Intersection Manual Panel
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 217 of 265 3 3 0 0 M M A A N N U U A A L L P P A A N N E E L L 30.1 Standard Facilities (Intersection Controller) SIEMENS 1 2 3 4 5 6 7 AUX 1 AUX 2 AUX 3 SW 1 SW 2 SW 3 MANUAL CONTROLS CABINET ALARM ALL RED PROHIBITED MOVE CABLE LESS LINK ...
Page 218 - Dim Override
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 218 of 265 30.1.2 Mode Select Push-Buttons W hen the NORMAL mode select push-button is pressed, the highest priority mode with operating conditions active will be the current mode and the NORMAL indicator will be illuminated. If the mode r...
Page 220 - Stand-alone Pedestrian Controller Manual Panel; Figure 40 – Stand-alone Pedestrian Controller Manual Panel
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 220 of 265 30.2 Stand-alone Pedestrian Controller Manual Panel SIEMENS CONT PED DEMAND AUX 1 AUX 2 AUX 3 SW 1 SW 2 SW 3 PED 2 CABINET ALARM DFM RESET LAMP TEST SIGNALS OFF ON CONT VEHICLE EXTEND SELECT VA FVP CONT PED DEMAND PED 1 CONT VEH...
Page 222 - Hong Kong Internal Manual Panel; There is only one spare indicator - AUX3.; Extra Facilities
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 222 of 265 30.3 Hong Kong Internal Manual Panel The internal Manual Panel used on ST900s supplied to Hong Kong is similar to the standard item although they are housed internally and mounted horizontally. The following sections describe th...
Page 223 - Special Conditioning Operators
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 223 of 265 3 3 1 1 S S P P E E C C I I A A L L C C O O N N D D I I T T I I O O N N I I N N G G 31.1 Introduction There are often special requirements for the operation of a controller, which are not covered by its normal methods of working...
Page 224 - Reading Controller Timers
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 224 of 265 Instigation of Flash Amber Mode due to Fault Holding a stage with a Special Conditioning timer 31.4 Reading Controller Timers It is possible to read whether certain controller timers are active, held or expired, and also what th...
Page 225 - On-Street Configurable Items; dependent phases
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 225 of 265 3 3 2 2 O O N N S S T T R R E E E E T T C C O O N N F F I I G G U U R R A A T T I I O O N N 32.1 Introduction A facility to enable On Street Programming exists for non UK controllers. A configuration option enables this facility...
Page 226 - Fixed Items and Notes; stage not configured will light the prohibited move LED
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 226 of 265 32.3 Fixed Items and Notes The following data items will be set in the configuration and currently remain fixed: Only one intersection stream is configured, i.e. not parallel stage streaming Intersection control only, i.e. not P...
Page 227 - Condition
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 227 of 265 3 3 3 3 H H A A R R D D W W A A R R E E C C H H E E C C K K S S 33.1 Monitoring the Signals The correspondence check (also known as an equivalence check) is available on all three colours, not just greens. A correspondence error...
Page 229 - ri
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 229 of 265 Condition CPU Fault Action Normal Lamp Failure Duration is configurable by 8DF file or handset command. Main Only Fault Report only Vehicle Red Lamp Failure Main Only Actions and response times as HA requirements for Red Lamp Mo...
Page 232 - Lamp Supply Checks
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 232 of 265 This test is undertaken without the knowledge of the Signal Monitor so if the signal remains active (say due to a fault) the Signal Monitor will detect correspondence (and possibly conflict faults) and shut down the controller. ...
Page 234 - on period” at the start.; ST900 ELV Controller
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 234 of 265 3 3 4 4 H H A A R R D D W W A A R R E E F F A A I I L L F F L L A A S S H H I I N N G G F F A A C C I I L L I I T T Y Y ( ( N N O O N N U U K K O O N N L L Y Y ) ) Hardware Fail Flashing is an integral part of the controller con...
Page 235 - The other Lamp Supply relay is forced on
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 235 of 265 If either processor or the hardware watchdog shuts down the controller, with the ‘Non UK Links’ fitted, the following sequence occurs: 1. One Lamp Supply relay is released, switching off the lamp supply to all but the first LSLS...
Page 237 - MOVA; Instructions for Connecting MOVA to Traffic Controllers; The Siemens Gemini
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 237 of 265 3 3 6 6 M M O O V V A A ( ( M M I I C C R R O O P P R R O O C C E E S S S S O O R R O O P P T T I I M M I I S S E E D D V V E E H H I I C C L L E E A A C C T T U U A A T T I I O O N N ) ) 36.1 Introduction MOVA is implemented by...
Page 238 - and MOVA unit, the control and reply bits
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 238 of 265 the OMU to monitor the controller’s inputs and lamps without the need for any other cables. See the description of the enhanced serial link in the Gemini 2 handbook, W ith a combined Siemens Gemini 2 and MOVA unit, the control a...
Page 239 - General Description
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 239 of 265 3 3 7 7 I I N N T T E E G G R R A A L L T T C C 1 1 2 2 O O T T U U 37.1 General Description The Integral TC12 OTU is a double extended Euro sized card which connects to the ST900 Main Processor via the Extended System Bus. For ...
Page 241 - Lamp Monitoring Facility
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 241 of 265 3 3 8 8 L L A A M M P P M M O O N N I I T T O O R R I I N N G G 38.1 Lamp Monitoring Facility The Lamp Monitor provides a means to check that the signals (the lamps) are all working and no failures have occurred. The ST900 Famil...
Page 242 - be issued
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 242 of 265 38.1.2 Lamp Monitor Operation For each sensor, a configurable threshold (in watts at the nominal lamp supply) can be defined, or is implied by the selection of the Load Type (detailed in section 38.1.4). W hen a change in the cu...
Page 243 - Monitored Colours
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 243 of 265 38.1.3 Lamp Monitor Phase Types Each controller phase is usually monitored by one lamp monitor sensor. Each sensor must be assigned a lamp monitor ‘phase type’, although these do not need to be changed from their default setting...
Page 245 - Red Lamp Monitor
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 245 of 265 38.2 Red Lamp Monitor 38.2.1 Introduction To meet UK requirements, the Red Lamp Monitor function is required at part-time signals (see section 14), at junctions that are fitted with pedestrian audible or tactile devices (see sec...
Page 246 - A B C D; – First Red Lamp Failure Delays (Example 1)
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 246 of 265 3-second delay is required. Even if phases B and C also had missing red lamps, the calculation would still result in a 3-second delay. Example 3 shows what happens if phase A has no missing red lamps, but phase C has one or more...
Page 247 - – First Red Lamp Failure Delays (Example 2)
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 247 of 265 In the following diagram, phases A and B are losing right of way and conflict with phase D that is gaining right of way. Phase C is also losing right of way and conflicts with phase E. The requirement is that phases D and E appe...
Page 248 - RLM Delays and Intermediate Stages
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 248 of 265 38.2.2.3 RLM Delays and Intermediate Stages W hen a stage to stage move is made via an intermediate stage, the RLM delays are applied on the two stage moves independently. However, this can mean that the terminating vehicle phas...
Page 249 - Phases Inhibited or Blacked-Out; Consideration for Multiple Part-Time Streams
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 249 of 265 Phases Inhibited or Blacked-Out A B C X Y Z A2 B2 F2 P h a s e s W it h a 2 n d R e d L a m p F a u lt C o n fi rm e d A 1 1 1 B 1 1 1 C 1 1 1 X 1 1 Y 1 Z A2 1 B2 F2 Figure 43 – Second Red Lamp Failure (Example 1) Phases A, B an...
Page 251 - Other RLM Configuration Data; The following ‘switches’ affect the whole controller:; Stand-Alone Pedestrian Streams on an ST900
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 251 of 265 Note: If it is required that red lamp faults on the stand-alone pedestrian stream extinguish all the signals of the controller, but some streams normally only inhibit their pedestrian phases, then special conditioning can be use...
Page 252 - RLM
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 252 of 265 5 RLM LMU 6 7 LMU 8 LMU F E G H 35 RLM LMU 36 RLM LMU RLM Approach 1 RLM Approach 2 Last Phase of the Intersection Stand-Alone Pedestrian Phase Spare Phase External Sensors M o n it o ri n g D is a b le d Figure 46 – RLM Approac...
Page 253 - – RLM Approaches (Different LSLS Outputs); ) External sensors are not required since this mapping is handled; internally; by
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 253 of 265 green commands PAR and PIT are stream-based so the same timings would be applied to both vehicle phases. The puffin and toucan pedestrian to vehicle inter-green is controlled by the pedestrian phase’s clearance period which woul...
Page 254 - same since they are being controlled by the same phase.
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 254 of 265 2) All the timings associated with the two vehicle approaches will always be the same since they are being controlled by the same phase. Note that the example abov e also shows that a second LSLS Output has been configured for P...
Page 255 - What is a Ripple Change?; Figure 49 – Ripple Change Example
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 255 of 265 3 3 9 9 R R I I P P P P L L E E C C H H A A N N G G E E F F A A C C I I L L I I T T Y Y The ‘ripple change’ facility optimises stage changes at large busy intersections that have phases that overlap into two or more stages. 39.1...
Page 256 - Normal Controller Operation
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 256 of 265 39.2 Normal Controller Operation Normally the firmware can only decide to make a stage change while the controller is steady in a stage and cannot make another stage change while one is already in progress on the same stream. Th...
Page 257 - Ripple Change Parallel Stage Streaming Facilities
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 257 of 265 controller can decide to move to stage 3 instead. At this point, it terminates phase B, which allows it to bring on phase D seven seconds later. Compare this with diagram above and it shows that phase D and stage 3 have been giv...
Page 260 - Green Filter Arrows
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 260 of 265 phase delays affected’ is configured as required, rather than being left as the default of ‘all ones’. 39.5.6 RLM Delays The RLM facility will continue to function correctly along side ripple change, as long as RLM delays are on...
Page 262 - Time 3: A gap appears on A and B so the
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 262 of 265 The alternative is to add an intermediate stage to which the controller can ripple change during the move from stage 2 to stage 3, so allowing it to terminate phases A and B before phase F has actually appeared. Once phase F has...
Page 263 - allowing the left-turn green filter arrow on as soon as possible.
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 263 of 265 Since phase F is configured as a left-turn green filter arrow, it remains at green until its associated phase, i.e. phase E, appears at green even though its minimum green time is set to zero and stage 4 finished several seconds...
Page 265 - See Dimming; LAST PAGE OF THE
ST900 Family General Handbook 667/HB/32900/000 Issue 11 Page 265 of 265 Minimum Green ................................ 85 Modes ...................................... 73, 124 Monitor Time .......................... 146, 147 Monitor Validation .......................... 226 MOVA ........................