Specifications

ManualsBrandsSiemens ManualsHobEH.75M.11.

T400 Controller Facilities Manual

667/EB/20200/000 Page i Issue 9

SIEMENS TRAFFIC CONTROLS LIMITED

Sopers Lane

POOLE Dorset.

BH17 7ER

SYSTEM/PROJECT/PRODUCT: T400 CONTROLLER

T400 CONTROLLER

FACILITIES MANUAL

PREPARED: A.Pickering APPROVED: J.P.Burgess

FUNCTION: Senior Engineer FUNCTION: Engineering Manager

SIGNATURE: SIGNATURE:

ISSUE: CHANGE REF.: DATE: APPROVED BY:

1 16/08/89

2 83/15948 15/02/91

3 83/16122 13/06/91

4 83/16700 24/09/92

5 83/16955 18/12/92

6 83/17014 20/01/93

7 83/17147 23/03/93

8 83/18623 22/05/96

9 Jan 1999

The information contained herein is the property of Siemens Traffic Controls Limited and is

supplied without liability for errors or omissions and no part may be reproduced, used or

disclosed except as authorized by contract or other written permission. The copyright and the

foregoing restriction on reproduction, use and disclosure extend to all the media in which this

information may be embodied.

(stcl-pub)

Summary of content (308 pages)

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T400 Controller Facilities Manual SIEMENS TRAFFIC CONTROLS LIMITED Sopers Lane POOLE Dorset. BH17 7ER SYSTEM/PROJECT/PRODUCT: T400 CONTROLLER T400 CONTROLLER FACILITIES MANUAL PREPARED: A.Pickering APPROVED: J.P.Burgess FUNCTION: Senior Engineer FUNCTION: Engineering Manager SIGNATURE: SIGNATURE: ISSUE: 1 2 3 4 5 6 7 8 CHANGE REF.
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T400 Controller Facilities Manual 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 experience, who are also familiar with the safety procedures required when dealing with modern electrical/electronic equipment are to be allowed to use and/or work on the equipment.
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T400 Controller Facilities Manual ISSUE HISTORY DOCUMENT ISSUE: 8 PAGES ISSUE PAGES ISSUE PAGES ISSUE i to xvi 1-1 to 1-4 2-1 to 2-9 3-1 to 3-13 4-1 to 4-3 5-1 to 5-1 6-1 to 6-5 7-1 to 7-4 8-1 to 8-5 9-1 to 9-61 9 9 9 9 9 9 9 9 9 9 10-1 to 10-4 11-1 to 11-2 12-1 to 12-6 13-1 to 13-2 14-1 to 14-5 15-1 to 15-14 16-1 to 16-6 17-1 to 17-17 18-1 to 18-16 19-1 to 19-12 9 9 9 9 9 9 9 9 9 9 20-1 to 20-3 21-1 21-2 to 21-27 22-1 22-2 to 22-33 23-1 to 23-2 24-1 to 24-1 25-1 to 25-25 A-1 to A-10 B-1 to B-2 9
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T400 Controller Facilities Manual SUMMARY OF SECTIONS 1. INTRODUCTION 2. STAGES 3. PHASES 4. DEMANDS AND EXTENSIONS 5. CALL/CANCEL 6. HIGH SPEED VEHICLE DETECTION 7. ALL-RED DISPLAYS 8. PHASE DELAYS 9. MODES 10. STAGE MOVEMENT RESTRICTIONS 11. THE MASTER TIME CLOCK SYSTEM 12. THE EVENT TIMETABLE 13. LINKING 14. ALTERNATIVE SIGNAL SEQUENCES AND FLASHING SIGNALS 15. INPUTS AND OUTPUTS 16. MANUAL PANEL 17. PELICAN/PEDESTRIAN CONTROLLER 18. EQUIPMENT 19. ORIGINAL LAMP MONITORING UNIT 20.
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T400 Controller Facilities Manual CONTENTS 1. INTRODUCTION ................................................................................................ 1-1 1.1 GLOSSARY OF TERMS .................................................................................. 1-2 1.2 RELATED DOCUMENTS ................................................................................. 1-3 2. STAGES ............................................................................................................. 2-1 2.
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T400 Controller Facilities Manual 3.6.1 Minimum Green Thresholds ................................................................. 3-10 3.6.2 Intergreen Thresholds .......................................................................... 3-10 3.7 CONDITIONS OF APPEARANCE.................................................................. 3-10 3.7.1 Appearance Type 0 .............................................................................. 3-10 3.7.2 Appearance Type 1 ....................................
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T400 Controller Facilities Manual 6.5 SDE/SA PARALLEL STAGE STREAMING FACILITIES .................................. 6-3 6.6 SDE/SA ON GREEN ARROWS ....................................................................... 6-3 6.7 COMMON APPROACH LANES ....................................................................... 6-3 6.8 OTHER LOOP SPACINGS............................................................................... 6-4 6.9 EQUIPMENT ..................................................................
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T400 Controller Facilities Manual 9.5 HURRY CALL MODE ..................................................................................... 9-33 9.5.1 Priority of One Hurry Call Over Another............................................... 9-35 9.5.2 Hurry Call Parallel Stage Streaming Facilities ..................................... 9-35 9.5.3 Control From A Remote Pushbutton .................................................... 9-36 9.5.4 Control From A Queue Detector.........................................
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T400 Controller Facilities Manual 11.3 TIMETABLE RESOLUTION ......................................................................... 11-2 11.4 BRITISH SUMMER TIME CHANGES........................................................... 11-2 11.5 MINUTE PULSE ........................................................................................... 11-2 12. THE EVENT TIMETABLE............................................................................... 12-1 12.1 PLAN CHANGE/EVENT TIMETABLE ....................
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T400 Controller Facilities Manual 16.1.4 SW1, SW2 and SW3 Pushbuttons..................................................... 16-1 16.1.5 Lamp Dim Override Switch (If Configured)......................................... 16-1 16.1.6 DFM Reset Push-button (If Configured)............................................. 16-2 16.1.7 Lamp Test Push-button ...................................................................... 16-2 16.1.8 Manual Button Indicators...........................................................
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T400 Controller Facilities Manual 17.11.2 Alternative Max. sets ...................................................................... 17-14 17.11.3 Switch to FVP mode ....................................................................... 17-14 17.11.4 Enhanced DFM .............................................................................. 17-14 17.12 CONDITIONING FACILITIES ................................................................... 17-14 17.12.1 Dual Level and Audible On/Off control...........
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T400 Controller Facilities Manual 21. EXAMPLE OF AN INTERSECTION ............................................................... 21-1 22. EXAMPLE OF AN INTERSECTION ROAD TRAFFIC & LIGHT RAIL VEHICLES............................................................................................................ 22-1 23. MOVA (MICROPROCESSOR OPTIMISED VEHICLE ACTUATION)............. 23-1 23.1 INSTRUCTIONS FOR CONNECTING MOVA TO TRAFFIC CONTROLLERS ..................................................................
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T400 Controller Facilities Manual B.1 50-0-50 volt Controller ..................................................................................... B-1 B.2 Dual Solar Cell (Only Available on 50-0-50 Volt Controller) ............................
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T400 Controller Facilities Manual TABLE OF FIGURES FIGURE 6.1 - SDE/SA LAYOUTS .......................................................................... 6-5 FIGURE 8.1 - DELAY PHASE LOSING RIGHT-OF-WAY...................................... 8-2 FIGURE 8.2 - DELAY PHASE GAINING RIGHT-OF-WAY .................................... 8-5 FIGURE 9.1 - START-UP SEQUENCE .................................................................. 9-4 FIGURE 9.2 - PRIORITY DEMAND ORDER............................................
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T400 Controller Facilities Manual FIGURE 21.3 - CUSTOMER SPEC SHEET EXAMPLE ...................................... 21-4 FIGURE 21.4 - CUSTOMER SPEC SHEET EXAMPLE ...................................... 21-5 FIGURE 21.4A - CUSTOMER SPEC SHEET EXAMPLE..................................... 21-6 FIGURE 21.5 - CUSTOMER SPEC SHEET EXAMPLE ...................................... 21-7 FIGURE 21.6A - CUSTOMER SPEC SHEET EXAMPLE..................................... 21-8 FIGURE 21.6B - CUSTOMER SPEC SHEET EXAMPLE........
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T400 Controller Facilities Manual FIGURE 22.26 - CUSTOMER SPEC SHEET EXAMPLE ................................... 22-27 FIGURE 22.27 - CUSTOMER SPEC SHEET EXAMPLE ................................... 22-28 FIGURE 22.28 - CUSTOMER SPEC SHEET EXAMPLE ................................... 22-29 FIGURE 22.29 - CUSTOMER SPEC SHEET EXAMPLE ................................... 22-30 FIGURE 22.30 - CUSTOMER SPEC SHEET EXAMPLE ................................... 22-31 FIGURE 22.31 - CUSTOMER SPEC SHEET EXAMPLE ..........
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T400 Controller Facilities Manual 1. INTRODUCTION This manual refers to the facilities available in the Type 400 Controller using firmware PB321 and PB322. For precise details of facilities supported by earlier versions of firmware see 667/SU/20200/000. This document is included in the General Handbook. The controller conforms to the UK Department of Transport Specification MCE 0141, but also incorporates extra facilities. The operation of the controller is phase oriented.
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T400 Controller Facilities Manual 1.
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T400 Controller Facilities Manual RLMU RMS ROW RTC SA SDE SIE ST STS SVD SWG TCSU UTC VA Red Lamp Monitor Unit Root Mean Square Right Of Way Real Time Clock Speed Assessment Speed Discrimination Equipment Supplementary Intergreen Extensions Self Tuning Site to Scale Drawing Selective Vehicle Detector Standard Wire Gauge Traffic Control Systems Unit Urban Traffic Control Vehicle Actuated 1.
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T400 Controller Facilities Manual 667/HA/20200/000 MAINTENANCE HANDBOOK FOR THE T400 CONTROLLER This handbook details the following: (a) Safety procedures when working on the T400 traffic controller and its ancillary equipment. (b) The use of the handset/terminal for maintenance purpose. (c) Routine maintenance/inspection procedures. (d) Fault finding procedures. (e) Procedures for replacing PCBs. (f) Clarification of specific controller functions.
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T400 Controller Facilities Manual 2. STAGES 2.1 FACILITIES There are up to 16 stages (0 to 15) 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 and must not be deleted. Some stages may appear in some modes but not others. However, it may be possible to be in a stage not in the current mode if a change of mode occurs.
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T400 Controller Facilities Manual Firstly, the controller sets the “suggested stage” as the current stage and the number of new “phases & stages to get right of way” to zero ‘0’. These two items will then be updated as the controller goes though its decision-making process. The following process is performed for each stage in cyclic order starting at current stage +1. 1. Are any of the phases in the stage or the stage itself, prevented and/or deleted? If NO, proceed to next step.
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T400 Controller Facilities Manual If NO, add the demand phases in this stage (or the stage itself if stage is demanded) to “Phases & stages to Get right of way”. Then try next stage in cyclic order (starting at Step 1). 5. Will more demanded phases be serviced by this stage than in previously “Suggested Stage”? If YES, set “Suggested Stage” equal to this stage. If NO, add the demanded phases in this stage (or the stage itself if stage is demanded) to “Phases & Stages to Get right of way”.
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T400 Controller Facilities Manual However, in other modes, namely CLF, UTC, Fixed Time, Priority, Part-Time, Manual and Manual Step-On, the modes influence the outcome of the stage change algorithm. This can be done by: a) applying stage/phase prevents, b) masking out phase demand, c) inserting stage demands, d) masking out extensions, i.e. causing them to be ignored, e) Suspending maximum green times.
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T400 Controller Facilities Manual All stages contained within a stream must be numbered consecutively starting at Stage 0 for Stream 0. If a stream requires an all red condition then a separate all red stage must be provided for that stream. No phase may appear in more than one stream. 2.6.3 Mode Selection Each stream will independently run the highest priority mode for which a request exists, except in the case of Manual and Part Time modes. (See also section 9.12).
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T400 Controller Facilities Manual 2.6.4 Mode Operation (See also section 9.) 2.6.4(a) Fixed Time Each stream will have its own fixed sequence of stages and will move around it independently of the other streams. Alternatively the streams can be linked, allowing groups of stages to run together, i.e. Linked Fixed Time. 2.6.4(b) VA Each stream will move around its own stages according to its own on street demands and extensions independent of any other streams. 2.6.4(c) CLF The controller has up to 8 plans.
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T400 Controller Facilities Manual The Awaiting New Command lamp will only illuminate when all phase minimums on all streams have expired and consequently allow further moves to be made using the Manual Buttons. A change is accepted as valid even if only one of the stage streams changes. The Manual Panel indicators illuminate when the stage that is configured to the corresponding button is active.
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T400 Controller Facilities Manual Each stream will then move immediately to its individual switch off stage subject to any delays caused by minimum greens or intergreens timing off and also subject to any stage movement restrictions. When all streams have reached their switch-off stages and all minimum greens have expired then all signals will be extinguished. The Part Time switch off stage for each stream is specified in configuration. 2.6.4(i) Start Up The start-up stage for each stream is configurable.
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T400 Controller Facilities Manual intergreens on the configured stage to stage movements will be held until the supplementary extension timer expires. The extension period is measured from the stage change point. Each streams extension can be accessed by using the handset command: SIE followed by the stream number (e.g. SIE2). Data is in the range 0 to 31.8 secs. in 0.2 second steps. 2.6.8 LMU Maximum All Red There is an LMU maximum all red facility available for each stream.
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T400 Controller Facilities Manual 3. PHASES 3.1 FACILITIES There are up to 16 phases (A to P) available for use as any of the following types of phase: • Traffic • Pedestrian • Green arrow, filter or indicative • LRT vehicle • Dummy • Switched sign. Note: Pelican, pedestrian and vehicle phases and the pelican audio indication are described in section 17. Traffic, pedestrian and green arrow phases are considered as real phases and require phase hardware as well as phase software.
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T400 Controller Facilities Manual The red/amber period is normally 2 seconds and the amber period is normally 3 seconds. Alternative signal sequences, e.g. RED-GREEN-AMBER-RED, may be obtained if required. In the example in Figure 21.2 and Figure 21.3, phases A,B,E and F are traffic phases. 3.2.2 Pedestrian Phase A pedestrian phase controls pedestrian movements via a 2-aspect signal comprising red and green man plus a WAIT indicator.
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T400 Controller Facilities Manual 3.2.2(b) MCE0141 Audible Indication 2 (High Voltage) The audible signals are driven direct from the aspect supply to the pedestrian red and green signals via relay contacts. An I/O port will be used to drive a relay to disconnect the red and green feeds to the audible signal when it is not required. Eight pedestrian signals will be controlled usually by timeswitch control. 8 relays are provided and driven from an output port bit to switch the above feeds on and off.
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T400 Controller Facilities Manual green arrow that appears unconditionally must always be followed by its associated phase by means of stage movement restrictions (see section 10). Alternative methods of control can be provided to meet other specifications. During Manual Mode the appearance of the filter green arrow during its associated stage(s) is configurable, i.e. ON, OFF or Demand Dependant. In the example in Figure 21.2 and Figure 21.3, phase D is a filter green arrow associated with Phase E.
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T400 Controller Facilities Manual The normal functions of a switched sign phase are as follows: 3.2.5(a) Secret Regulatory Signs Secret regulatory signs, e.g. NRT, NLT, etc. are illuminated and extinguished at a certain time of day when a specified associated phase loses ROW. 3.2.5(b) WAIT Indicator for 3-aspect Phases (Export Only) When a pedestrian phase has a WAIT indicator the power to it is normally supplied by the amber drive. If a pedestrian phase has 3-aspects (i.e.
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T400 Controller Facilities Manual All phases will normally be set to oppose each other, unless works specifications form III is completed to specify which phases oppose which phases. 3.5 TIMING PERIODS Each phase has its own minimum green timer, green extension timer, maximum green timer and pedestrian blackout timer. Each phase to phase transition has its own intergreen timer.
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T400 Controller Facilities Manual 3.5.3 Maximum Green (MAX,MBX,MCX,MDX) A maximum green timer is provided for each vehicle actuated phase and commences to time upon receipt of a demand for any opposing phase. If the opposing demand is present when the phase gains ROW then the maximum green period will commence to time off immediately. Stage changes will not take place until the last maximum green timer for phases in that stage have timed off, unless the associated phase runs in the new stage.
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T400 Controller Facilities Manual No intergreen period is reduced below its value during phase changes. In the event of different intergreen values to phases gaining ROW, the longest intergreen will be effective. If phases conflict, but due to stage movement restrictions, the phase to phase transition never takes place, the intergreen value should be set the same as the intergreen limiting value for safety reasons. The I/G’s D-A and C-A in Figure 21.4 are examples of this.
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T400 Controller Facilities Manual (i) Fixed Period during Manual Step-On. (Export only). The timing range is 0 to 255 seconds in 1 second steps. 3.5.8 Limit Green Watchdog (Facility constructed in Special Conditioning for Export Only). In all modes except Hurry Call, Vehicle Actuated and Manual Control, the maximum duration of each stage green can be governed by a limit green watchdog time. One limit green watchdog timer (a Special Conditioning timer) is provided, which is applied to each stage in turn.
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T400 Controller Facilities Manual 3.6.1 Minimum Green Thresholds Minimum Green times have range limits for each phase (i.e. each phase has an upper and lower minimum green time associated with it.) 3.6.2 Intergreen Thresholds Intergreen times have a common maximum limit but there is an individual lower limit associated with each intergreen time. 3.
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T400 Controller Facilities Manual 3.7.3 Appearance Type 2 The phase will only appear whenever its associated stage runs if demanded, although there is no limit point for when the demand may be inserted. If the demand is inserted before the stage runs then the phase will appear at the start of the stage. If the demand is inserted during the stage then the phase will appear immediately. The appearance of the phase in both cases will be subject to any relevant intergreen periods timing off.
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T400 Controller Facilities Manual (ii) The conditional phase is programmed as an Appearance Type 2 and conditioning timers are used as window timers to inhibit the appearance of the phase. The conditioning timers are introduced and deleted by the master time clock at the same time as the alternative maximum green periods. The timing range of the window period is 0 to 255 seconds in 1 second steps. The timers are individual to stages and Figure 21.5 illustrates the allocation point.
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T400 Controller Facilities Manual c) be demand dependant 3.10 CONDITIONS OF TERMINATION 3.10.1 Termination Type 0 The phase terminates at the end of its associated stage. If the phase appears in consecutive stages then it will remain at green throughout the interstage period. This is the normal type of phase termination. (See Figure 21.2 and Figure 21.3). 3.10.2 Termination Type 1 The phase terminates when a specified associated phase gains ROW. The associated phase must be a fixed phase.
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T400 Controller Facilities Manual 4. DEMANDS AND EXTENSIONS 4.1 GENERAL DESCRIPTION Demands may be inserted for phases or stages, but extensions may only be inserted for phases. Demands will only be acted upon when the relevant phase or stage is not active, whereas extensions will only be acted upon when the relevant phase is active. 4.2 TYPES OF DEMANDS 4.2.1 Latched The demand remains active until the phase or stage is served. All priority demands are latched irrespective of the current mode.
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T400 Controller Facilities Manual 4.3.3 Revertive Demands When a vehicle actuated phase terminates with an extension active, a revertive latched demand is inserted for the phase to prevent any vehicles being trapped between the detectors and stop line without a demand for the phase. If required, the revertive demand may be inserted for an alternative phase rather than for the terminated phase. In the example in Figure 21.
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T400 Controller Facilities Manual 4.4 OPERATION DURING CERTAIN MODES 4.4.1 Manual, Fixed Time and Start Up Mode During Manual and Fixed Time Mode demands and extensions are disregarded. This does not apply when Fixed Time to Current Maxes is the operative mode, see section 9.11.2. However, demands are inserted for all non-running real phases when these modes terminate. Pedestrian phase WAIT indicators will be illuminated while a demand is present. 4.4.
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T400 Controller Facilities Manual 5. CALL/CANCEL 5.1 GENERAL 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 remain active for the call period before the output goes active, and inactive for the cancel period before the output returns to the inactive condition.
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T400 Controller Facilities Manual 6. HIGH SPEED VEHICLE DETECTION To provide this facility, an SDE/SA processor PCB and soundmark interface socket must be added to the controller. This fits in the PCB module beside the Main Processor Board. Unused input lines on the SDE/SA PCB may be used as general inputs.
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T400 Controller Facilities Manual 6.1.3 SDE Extension Inhibit An SDE extension may be suppressed, but not the associated extra clearance, by using a Special Conditioning mask. This would be used in an early cut-off situation where the overlapped phase would not be required to be extended by its SDE loops during the turning movement. In the example shown in section 21, Phase B SDE extensions would be inhibited during Stage 2. 6.
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T400 Controller Facilities Manual The condition in (c) is normally disabled for individual phases at the time of configuration. Speed extensions will still request extra clearance because of the operation of condition (a). An extra clearance period will be given under any mode of control, i.e. manual, VA, fixed time, CLF, UTC, vehicle priority or hurry call.
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T400 Controller Facilities Manual 6.8 OTHER LOOP SPACINGS The SDE/SA facility can be configured to operate with 10 ft. loop spacing. Note that all SDE/SA loops on the site must be 10ft. loop spacing. However, it is recommended that all the loops are re-cut for 12ft loop spacing and the Controller configured for 12ft. operation. 6.9 EQUIPMENT The SDE/SA facility is provided on a separate PCB which fits into the PCB Module beside the Main Processor Board. It contains enough inputs for up to 16 assessors (i.e.
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T400 Controller Facilities Manual Figure 6.1 - SDE/SA LAYOUTS Stop Line 79m Z Y X Standard ‘D’ Detector 12’ (3.66m) (a) Double SDE Stop Line 159m 91m Z Y X Standard ‘D’ Detector 12’ (3.66m) 12’ (3.66m) (b) Triple SDE Stop Line 151m Z Y X Standard ‘D’ Detector 12’ (3.
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T400 Controller Facilities Manual 7. ALL-RED DISPLAYS There are two methods of achieving an all-red display: - All-red stage Red extension during intergreen. An All-Red Stage is a stage during which all signal phases display their red signal aspects. The red condition between conflicting phases in certain stage to stage transitions can be extended up to a pre-determined maximum. One red extension value and one maximum red value is provided for all stage to stage transitions.
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T400 Controller Facilities Manual 7.2 RED EXTENSION DURING INTERGREEN The occupation of an All Red detector loop during its specified stage to stage movement will generate an All Red extension. When using priority mode to provide priority facilities for Light Rail Transit schemes, the priority demands (LRV requests) can be used to extend the all Red period. The all red extensions called by LRV requests can be configured to be different depending upon the stage being left (flexible all red). (N.B.
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T400 Controller Facilities Manual Stage movements for all red units are specified as follows: Unit 7 Unit 6 Unit 5 Unit 4 Unit 3 Unit 2 Unit 1 1-2 1-3 2-3 4-5 4-6 5-8 8-1 TABLES Units 7 6 5 4 3 2 1 3 Binary Value 4 1-2 1-3 2-3 4-5 2 Binary Value 2 1-2 1-3 1 Binary Value 1 1-2 2-3 4-6 5-8 4-6 8-1 As can be seen from above, the stage moves are entered in the appropriate tables to equate to the required unit. Thus a movement cannot be specified for two units. In the example in Figure 21.
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T400 Controller Facilities Manual NB Care must be taken when using/testing independent intergreens. The Extend All Red ceases when the gaining stage comes to fruition (i.e. when all fixed phases are at right of way).
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T400 Controller Facilities Manual 8. PHASE DELAYS 8.1 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. There are up to 60 phase delay times (0 to 59) available for different phases on different stage to stage transitions. The timing range is 0 to 255 seconds in 1 second steps. The programmed value may be changed via the handset using the DPG command. 8.
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T400 Controller Facilities Manual Figure 8.1 - DELAY PHASE LOSING RIGHT-OF-WAY (a) ...Stage 1 (interstage - 6s) Stage 2... AMBER A AMBER B R/A E R/A F Phase B is delayed by 1 second. Intergreen from Phase A to Phases E and F is 5 seconds. Intergreen from Phase B to Phases E and F is 5 seconds. (b) ...Stage 1 (interstage - 5s) Stage 2... AMBER A AMBER B R/A E R/A F Phase B is delayed by 1 second. Intergreen from Phase A to Phases E and F is 5 seconds.
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T400 Controller Facilities Manual 8.3 PHASES GAINING RIGHT-OF-WAY The intergreen times from a conflicting phase determines at which point a phase gains ROW. If phases gaining ROW have different intergreen times from a conflicting phase then they will gain ROW at different points. The time differences will be the same every time the phase to phase transition occurs regardless of the stage to stage transition. For example, in Figure 8.
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T400 Controller Facilities Manual 8.5 PHASE DELAY HANDSET COMMANDS There are three handset commands which can be used to specify phase delays or modify information previously entered in the configuration prom. Up to 60 entries can be made to specify the phase to be delayed, how many seconds it is delayed by, and on which stage to stage movement the phase is to be delayed. DPG - The Phase Delay time in seconds. DMV - Updates Delayed phase Movement Table. DFZ - Updates Phase to be delayed Table.
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T400 Controller Facilities Manual Figure 8.2 - DELAY PHASE GAINING RIGHT-OF-WAY (a) ...Stage 3 or 5 (interstage - 6s) Stage 1... AMBER E R/A A G R/A B Intergreen from Phase E to Phases A and G is 5 seconds. Intergreen from Phase E to Phase B is 6 seconds. ...Stage 3 (b) (interstage - 5s) Stage 1... AMBER E R/A A G R/A B Intergreen from Phase E to Phase B is 5 seconds. (c) ...Stage 5 (interstage - 6s) Stage 1...
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T400 Controller Facilities Manual 9. MODES The following modes are available: (a) (b) (c) (d) (e) (f) (g) (h) (i) (j) (k) (l) (m) (n) (o) Fixed Time (FT) Vehicle Actuated (VA) Cableless Linking Manual Operation Hurry Call Urban Traffic Control. Part Time (Off period) Start Up Manual Operation (Selected via mode switch) VA, CLF or FT Operation (selected via mode switch) Emergency Vehicle Priority (Non-emergency vehicle) Manual Step-On, if fitted.
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T400 Controller Facilities Manual With the mode priorities defined, the controller adopts the highest priority mode for which the following conditions of entry apply: • Part time off (or flashing) period: Part time off selected by master time clock. • Hurry call mode: Hurry call applied and any call delay expired. • UTC mode: When the UTC mode code has been received by the controller. • Manual Control selection: MANUAL selected on the manual panel.
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T400 Controller Facilities Manual (b) Amber Leaving/Red Display. Following the blackout an amber leaving signal is shown to all traffic phases not in Stage 1, continue signals off to all traffic phases in Stage 1 and a red signal to all pedestrian phases. (c) Starting Intergreen At the end of 3 seconds amber leaving, the traffic phases not in Stage 1 change to red, the traffic phases in Stage 1 continue at signals off and all pedestrian phases continue at red.
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T400 Controller Facilities Manual Figure 9.1 - START-UP SEQUENCE StartUp Time (7 seconds) Amber Leaving (3 sec’s) Starting Intergreen Stage 1...
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T400 Controller Facilities Manual 9.2 PART TIME MODE During part-time mode, normal traffic control operations are suspended and signals blackout is selected. In order to achieve this, Part-time mode must always be programmed as the highest priority mode. On the change from normal to off, ROW moves immediately to Stage 1, subject to any delays caused by minimum greens or intergreens timing off and also subject to any stage movement restrictions.
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T400 Controller Facilities Manual 9.3 URBAN TRAFFIC CONTROL (UTC) MODE (Normally an O.T.U. is required for this facility.) In UTC mode, operations are controlled and monitored by the central computer of an Urban Traffic Control system. Stage changes are effected by the application of forces and demands. The demands may either be local or simulated by the computer. During UTC mode maximum green timers normally have no effect and are held in a RESET state.
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T400 Controller Facilities Manual 9.3.2 Summary of Control and Reply Bits Control Bits Section (a) (b) (c) (d) (e) (f) (g) (h) (i) (j) (k) (l) Bit designation Title DX D1, D2 etc. F1, F2 etc. SF1 and SF2 SO SG LO LL FM TO TS TS1 TC Demands - Common Demands - Stage Forces Switch Facility Solar Override CLF Group Synchronisation Lamps On / Off Local Link Inhibit Fall Back Mode Take Over RTC Set to stored value RTC Synchronisation Transmission Confirm Bit designation Title G1, G2 etc.
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T400 Controller Facilities Manual 9.3.3 Control Bits See Figure 21.14 9.3.3(a) Demands - Common (DX) and Stage (D1,D2 etc.) A ‘D’ bit simulates local demands, i.e. detectors or pedestrian push-buttons. ‘DX’ bit normally demands all phases and extends all extendible phases. ‘D’ bits normally demand and extend (where required) the phases within the specified demand dependent stage. The demands may be latched or unlatched as required, although normally they are latched.
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T400 Controller Facilities Manual 9.3.3(c) Switch Facility (SF1 and SF2) An ‘SF’ bit may be programmed to simulate any one of the facilities provided by the Event Timetable. See also 9.3.4(9.3.4(c)). 9.3.3(d) Solar Switch Override (SO) An ‘SO’ bit may be programmed to override the Signal Dimming facility and switch the signals to the BRIGHT condition. See also 9.3.4(9.3.4(o)). 9.3.
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T400 Controller Facilities Manual 9.3.3(i) Take Over (TO) A ‘TO’ bit may be programmed so that no ‘F’ bits will be effective unless ‘TO’ is present. The facility that is available for ‘TC’, desribed in section 9.3.3(9.3.3(l)), is used for ‘TO’ instead. See also 9.3.4(9.3.4(n)) and 9.3.7 9.3.3(j) RTC Set to Stored Value (TS) A ‘TS’ bit may be programmed to cause the time in the Real Time Clock to be set to the value stored in the configuration PROM.
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T400 Controller Facilities Manual sets the seconds to 30 (and the sub-seconds counter to 0). The hour is disregarded by the controller check. Example If the synch code is sent at (HRS:MINS:SECS) XX:08:30 and Real time clock is between XX:08:01 and XX:08:59, it will be re-synchronised to XX:08:30. ...where ‘XX’ is any hour. (N.B. As the real time clock is unlikely to be a whole hour in error, the hour is ignored.
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T400 Controller Facilities Manual When ‘G1/G2’ is received at the central office the computer releases control immediately. When ‘G1/G2’ stops being sent the computer will not regain control until reset by the operator. Normally ‘G1/G2’ is used to indicate no lamp power, i.e. condition (iii).
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T400 Controller Facilities Manual 9.3.4(e) CLF Group Synchronisation Confirm (CS) A ‘CS’ bit may be returned to confirm synchronisation of the current CLF plan and cycle time to the start of the first group i.e. Group O. The ‘CS’ bit is maintained for a preset period, configurable in 1 sec. steps normally set to 3 secs. See also 9.3.3(9.3.3(e)). 9.3.4(f) Stage Demand Confirm (SD1,SD2 etc.
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T400 Controller Facilities Manual Figure 21.15 indicates where to request the conditions required. In the example shown, ‘RR’ is returned when Manual mode is selected. Tying in with the intersection in section 21 and Figure 21.8, Manual mode is a lower priority than UTC mode. The ‘RR’ bit is used to request the computer to release control so that the controller may be operated manually. When NORMAL is selected on the mode buttons ‘RR’ will stop being sent and the computer will automatically regain control.
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T400 Controller Facilities Manual 9.3.4(o) Solar Override Confirm (SC) An ‘SC’ reply bit may be returned to indicate that the signals are in the BRIGHT condition. This may be from either of the following sources: (i) the solar cell (ii) the dim override switch on the manual panel (iii) the ‘SO’ control bit being active See also 9.3.3(9.3.3(d)). 9.3.4(p) Test Facility (TF) A ‘TF’ reply bit may be returned to indicate that the handset has been plugged in. 9.3.
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T400 Controller Facilities Manual A ‘PX’ bit simulates a pedestrian demand. (b) Hold Vehicle Stage (PV) A ‘PV’ bit holds the vehicle stage and inhibits the serving of pedestrian demands. Any pedestrian demands inserted during this period will be served when the ‘PV’ bit is removed. 9.3.6(b) Reply Bits (a) Pedestrian Reply (GX) A ‘GX’ bit may be returned to indicate that the vehicle stage is at green. 9.3.
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T400 Controller Facilities Manual The above conditions may not cause UTC mode to become the current mode due to the mode priority structure. UTC may be active without being the current mode and certain control bits may have an influence in the current mode. Conditions (i) or (ii) will cause the UTC ACTIVE indicator on the manual panel to be illuminated. 9.3.9 Outstation Transmission Units (OTU) See Figure 21.14. Some UTC systems require all control and reply signals to be inverted by an interposing unit. 9.
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T400 Controller Facilities Manual am and the real Introduction time of the Plan. The controller then brings the C.L.F. plan into synchronisation based upon this. (N.B. It may take up to 3 cycles of a plan to achieve synchronisation, and plans must be carefully constructed to ensure synchronisation can be achieved.
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T400 Controller Facilities Manual 9.4 PRIORITY AND EMERGENCY VEHICLE MODE Priority and Emergency Vehicle modes provide a facility in which appropriate vehicles have priority in gaining and holding ROW over other vehicles. Selective Vehicle Detectors (SVD) or transponder interrogators which respond only to the appropriate type of vehicle, i.e.
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T400 Controller Facilities Manual 9.4.1(b) Priority Extension A continuation of a green signal requested by vehicle(s) equipped to operate the priority vehicle detection equipment. The timing range is 0 to 31.8 seconds in 0.2 second steps. 9.4.1(c) Priority Maximum Running Period A further maximum running period which commences at the expiry of the normal maximum running period if a priority extension period is running or if a priority vehicle detector output is present.
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T400 Controller Facilities Manual 9.4.2 Operational Description 9.4.2(a) General Under no circumstances will the introduction or cancellation of priority facilities override the normal minimum green period, intergreen periods (including pedestrian blackout periods) or any enforced stage sequences specified for safety or other reasons. A priority demand will result in each phase in such a sequence running for its minimum period.
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T400 Controller Facilities Manual 9.4.2(b) Precedence Levels For isolated operation, the normal order of precedence for the differing levels of priority (in descending order) shall be: Emergency Vehicle Hurry Call UTC Manual Manually Selected other modes CLF Buses VA FT 9.4.2(c) Servicing of Priority Facilities at a Common Priority Level The presence of an output from a priority vehicle detector will, while the priority phase is running, hold the green signal.
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T400 Controller Facilities Manual When the inhibit period is not specified, then irrespective of the normal cyclic stage sequence, priority demands which are received after the commencement of a priority change, will be serviced in cyclic order based upon the priority demands and after any priority extensions (subject to the priority maximum running period) are satisfied. An exception may be made for LRVs - see Section 9.4.6(a).
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T400 Controller Facilities Manual A compensation period will only be introduced on a particular running phase if there is an outstanding vehicle extension present at the expiry of the normal maximum period for that phase. When a priority change results in a VA extension being curtailed, then: For high speed roads, an extended intergreen period will be introduced if specified for that stage change. A revertive demand will be entered for the phase being left.
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T400 Controller Facilities Manual When a priority change from the bus priority level to the emergency vehicle priority level results in a bus priority extension being curtailed, then an extended intergreen period will be introduced if specified for that stage change (for high speed roads) or the maximum value of a variable intergreen will be introduced. 9.4.
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T400 Controller Facilities Manual 9.4.3 Basic Facilities Reference should be made to Figure 21.16. Both Priority and Emergency Vehicle modes have the same facilities unless otherwise stated. 9.4.3(a) Priority Units There are 8 Priority Units (0 to 7) available which may be divided in any proportion between Priority and Emergency Vehicle Mode. If both modes are used then the following conditions are applied: (i) The Priority Units are allocated to Priority mode first.
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T400 Controller Facilities Manual 9.4.3(e) Priority Units Inhibited (Priority Mode Only) When a Priority Phase gains ROW, it is possible to inhibit specified Priority Units (including the one at ROW) for a specified time. 9.4.3(f) Revertive Priority Demands To Start Inhibit Timer (Priority Mode Only) This facility allows the Priority Units inhibited facility to be activated when a Priority Phase gains ROW due to a Revertive Priority Demand being present. 9.4.
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T400 Controller Facilities Manual (1) Priority Mode Fault Monitor When the input becomes active the Monitor Timer is started. When the input becomes inactive the Monitor Timer is reset providing it has not timed off. If it has, i.e. the input has been active for an abnormal amount of time, then the Priority Unit is disabled. A fault is then recorded against the Priority Unit and the Cabinet Alarm is illuminated. If the input now becomes inactive, one way of re-enabling the Priority Unit is to reset the DFM.
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T400 Controller Facilities Manual 9.4.4 Visual Indications A separate indicating light emitting source is normally provided, behind the police facility door of the controller. Whilst a priority vehicle is detected, the handset may be used to determine which priority unit has been demanded. For each priority stage equipped with an inhibit period, a display is available on the handset to indicate that an inhibit period is running.
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T400 Controller Facilities Manual 9.4.6 Use of Priority Mode for Control in Light Rail Transit Systems Shown in Figure 9.2 is a block diagram of the additional features available in Priority mode which may be used when controlling Light Rail Vehicles. 9.4.6(a) 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 serves a demanded Priority Phase.
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T400 Controller Facilities Manual 9.4.6(b) Request Delays The first delay as indicated allows for the travelling time of the LRV from the request detector to the junction. The first delay covers time which is not needed to process the LRV request. This is normally due to the detector not being in the ideal position (for instance due to an intervening stop). During the first delay, the controller takes no action on the demand.
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T400 Controller Facilities Manual Figure 9.
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T400 Controller Facilities Manual 9.5 HURRY CALL MODE 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 junctions, e.g. near to fire or ambulance stations, to ensure that certain vehicles are given right of way, or in conjunction with queue detectors, to prevent blocking of a junction. Two hurry calls (0 and 1) are available.
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T400 Controller Facilities Manual hurry call is valid provided its prevent timer is not active due to a previous hurry call and the delay timer for any higher priority hurry call is not active. A cancel input for each hurry call enables the process to be terminated any time during the delay, hold or prevent periods. There are two hurry call units available on the controller (0 & 1), the facilities described below exist for both individual hurry call units.
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T400 Controller Facilities Manual The reasons for a request being rejected may be: (i) The prevent timer being active. (ii) The delay timer for the higher priority hurry call (0) being active, (iii) Hurry call mode being disabled. (Perhaps by special conditioning, see (d) and (e) above.) This output may be used to activate a switching mechanism which illuminates an indicator at the origin of the hurry call request, e.g. Fire station, or it may be used as a confirm signal for a UTC system. 9.5.
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T400 Controller Facilities Manual 9.5.3 Control From A Remote Pushbutton If, on pressing the hurry request button, the confirm indication does not illuminate then this indicates that the request has been rejected due to either: - The Prevent Timer being active. - The Delay Timer for a higher priority hurry call being active. - Hurry Call mode being disabled. - Any Special Conditioning which prevents the input of the Hurry Call. e.g. Prevent Hurry Call 1 input whilst prevent timer for Hurry Call 0 is active.
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T400 Controller Facilities Manual 9.6 SELECTED MANUAL CONTROL MODE Refer also to Section 16. MANUAL mode selected on the pushbuttons is recognized as a mode for priority purposes and for use during UTC mode. Manual mode will only become operative if it is a higher priority then the current mode and if it has not been disabled. 9.6.1 Manual Mode (If Manual Step-On facility is fitted see also section 9.7.
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T400 Controller Facilities Manual so. Where parallel stage streaming is employed the indicator will illuminate when the combination of stages that is allocated to the push-button is active 9.6.3 Manual Mode Enable/Disable Facility Manual mode may be enabled or disabled from becoming operative by two methods (see Figure 21.8 for configuration example): i) by using the handset command MND.
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T400 Controller Facilities Manual 9.7 MANUAL STEP-ON MODE A Manual Step-on facility can be provided when a Police Manual Panel is fitted. See Figure 9.4. If the Manual Step-on facility is used and located behind the Manual access flap on the side of the controller, the Manual facility described in section 9.6 is transferred to the internal manual panel. It is possible to change stage under Manual Step-on Control by operation of a push button on the Police Manual Panel.
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T400 Controller Facilities Manual 9.7.2 Manual Step-on Mode Parallel Stage Streaming Facilities Each step is allocated a combination of stages, one from each stream, that will run simultaneously. (N.B. After selecting the mode, it may take the controller a couple of steps to become synchronised with the manual Step-on facility.) Figure 9.
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T400 Controller Facilities Manual 9.8 SELECTED FIXED TIME, CLF OR V.A. MODE Manually selected ‘FT’, ‘CLF’ and ‘VA’ are selected by mode select buttons ‘FIXED TIME’, ‘CLF’ and ‘V.A.’. The modes selected are recognised as modes for priority purposes and for use during UTC mode. The respective mode will only become operative if SELECTED FIXED TIME, CLF or VA mode is a higher priority than the current mode.
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T400 Controller Facilities Manual need to be carefully considered, if synchronisation with the rest of the system is to be achieved. With the alternative method, when a plan is introduced, the controller works out which group would be running if the Plan had been running (starting with group 0) from a fixed time of the day, 2.00 a.m. The controller then starts at that group and continues from there. Within 3 cycles, the controller should be synchronised with influences of the Groups.
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T400 Controller Facilities Manual 9.9.1 Example Of Simple Linked Installation A simple linked installation covering three intersections on a main road into a city (Figure 9.6) is used as an example. At each of the three intersections A, B and C, a cableless linking facility is used to drive the respective controllers.
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T400 Controller Facilities Manual The group timers in each linking unit are fully synchronous and, provided the total cycle time at each intersection is the same, the offset between controllers at the start of a particular plan is maintained until the next plan is selected. The controller follows plans within the limits of minimum greens and intergreens by the respective time switches, whose settings incorporate the required offsets. 9.9.3 Different Plans And Offsets Figure 9.
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T400 Controller Facilities Manual 9.9.5 Group Influences 0. GO TO VA - allows vehicle actuation to operate except that phase maximums have no effect and phases may only terminate on a gap change. The controller is still in CLF mode. This influence should not be confused with the facility to isolate from CLF mode using a timetable setting when full VA facilities with maximum timings will be operative. 1.
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T400 Controller Facilities Manual 9.9.6 Examples Of Plans See Figure 21.11. 9.9.6(a) Plan 0 The sequence will commence with an immediate move to Stage 1 during Group 0. If during Group 1 there is no demand for Stage 2 then Group 2 will force an immediate move to Stage 3 and Group 3 will hold it there.
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T400 Controller Facilities Manual The example shown in Figure 9.7(a) would be for a two stream controller where Stream 0 contains Stage 1 and 2, and Stream 1 contains Stages 3, 4, 5. Influence Set Combination ‘A’ has been used for Stream 0 and Influence Set Combination ‘B’ for Stream 1. Stream 0 would move on groups 0 and 2; Stream 1 would move on groups 0, 1 if stage 4 is demanded, and group 2.
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T400 Controller Facilities Manual b) Group 3 INFLUENCE SET 2 Influence Set Influence Set Combination ‘A’ Combination ‘B’ Group Related Group Related Inf Stage Inf Stage 2 2 6 3 Group 2 INFLUENCE SET 1 Influence Set Influence Set Combination ‘A’ Combination ‘B’ Group Related Group Related Inf Stage Inf Stage 2 3 5 4 c) 9.9.8 Alternative CLF System There is an alternative CLF system to the one previously described.
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T400 Controller Facilities Manual it would be outputting and how many seconds have elapsed within this group if this plan had been in continuous operation since 2.00 a.m. Having done these calculations (i.e. current group has been determined and the number of seconds remaining in current group have been calculated) the plan change can occur. 9.9.
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T400 Controller Facilities Manual should be specified. If alternatives are specified, it is preferable for the alternative stage to be one or two stages ahead in cyclic order of the original target stage. For example: If the move 1-2 is not allowed the alternative could be 1-3 or 1-4. 2. The use of the following 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.
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T400 Controller Facilities Manual If required (specified by handset command), then every time a grouptime within the current plan is changed the automatic plan re-entry delay timer is loaded. This timer is decremented every second. When the time has expired the controller automatically re-introduces the current plan. The time in the automatic plan re-entry timer is configurable and is changeable via the handset. 9.9.
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T400 Controller Facilities Manual Combination ‘A’ would be used for Stream 0, Influence Set Combination ‘B’ for Stream 1, etc. In this way, it is possible on introduction of a group, to operate different influences at the same time on different streams. If it is required that, during a given group timing, a stream is not required to change influence, then this stream’s influence should be set to Group Influence number 7, followed by the related stage number, i.e.
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T400 Controller Facilities Manual 9.10 VEHICLE ACTUATED (VA) MODE In VA mode the controller monitors all demands, extensions and maximum green timers every 200 mS to select a suggested stage in order to satisfy as many demands as possible without missing any stage containing a phase with a demand. If the suggested stage is different from the current stage then the prohibited move table is monitored to see whether an alternative move should be selected or not.
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T400 Controller Facilities Manual Figure 9.8 - EXAMPLE OF VA STAGE CHANGES STAGE 1 STAGE 2 A AC B D E STAGE 3 STAGE 4 F E G F E ‘I’ 9.10.1 Arterial Reversion After a phase has gained ROW, if there are no other demands then ROW will remain on that phase. The arterial reversion facility allows ROW to revert to a specified stage or phase in the absence of any demands and extensions, subject to any minimum green periods timing off and any stage movement restrictions.
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T400 Controller Facilities Manual 9.10.2 Arterial Reversion Parallel Stage Streaming Facilities There is an Arterial Reversion facility for each stream. If there is no demand or extension present for any phase in the stream, and no demand for any stage in the stream, then an Arterial demand for a phase or stage in the stream will be inserted, if specified in configuration. 9.10.
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T400 Controller Facilities Manual 9.11 FIXED TIME WORKING There are two methods of obtaining fixed time working: - Fixed Time mode - Vehicle Actuated (VA) mode with permanent demands and extensions. 9.11.1 Fixed Time Mode Fixed Time Mode is implemented: - when FIXED TIME is selected on the mode select buttons subject to mode priority. - by default, if there is no higher priority mode is active and no VA.
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T400 Controller Facilities Manual If Fixed time to current maximum is to be the default/lowest mode of operation. Then VA is configured once and special conditioning written such that when VA mode is operational, permanent extensions and demands are inserted. (N.B. It is Normal to have Fixed time to current maximums only as an alternative to “Selected Fixed Time” and not as the default mode.
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T400 Controller Facilities Manual timer will start when all stages have appeared. This process will be repeated for each configured stage combination, until either the last available (i.e. sixteenth) or last configured stage combination is reached. In these cases stage combination 0 will commence again. During Linked Fixed time mode the controller will display fixed time mode on the handset (Mode 1). Fixed time mode need not be active on all streams.
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T400 Controller Facilities Manual 9.12 MODE PRIORITY The mode priority facility allows for the mode with the highest priority for which operating conditions are active (e.g. force bits from the UTC computer or a hurry call demand) to be the current mode. When the operating conditions become inactive, then the next highest priority mode with operating conditions active will become the current mode. It need not necessarily be the next one in line.
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T400 Controller Facilities Manual Similarly to select Manual mode the MANUAL mode select button is selected and if SELECTED MANUAL CONTROL is a higher priority than the current mode then manual mode will become operational. If when Fixed Time, CLF, VA or Manual have been selected, they are not a higher priority than the current mode then no change of mode will occur.
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T400 Controller Facilities Manual 9.13 TIMER RELATIONSHIPS Below is a simple diagram intended to indicate the relationships between the various timers in the controller: Figure 9.9 - GENERAL TIMERS PRIORITY MODE PRIORITY PHASE MINIMUM GREEN INTERGREEN MINIMUM GREEN MAXIMUM GREEN PRIORITY MAX. INTERGREEN DELAY DELAY INTERGREEN INTERGREEN 1ST DELAY 2ND DELAY PRIORITY EXTENSIONS AND VA EXTENSIONS TAKE EFFECT. INTERGREEN Priority extensions on their own will cause normal max. to time off.
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T400 Controller Facilities Manual 10. STAGE MOVEMENT RESTRICTIONS When a specific stage change is required not to occur for safety or traffic control reasons, it is possible to restrict the move. The type of restrictions available are: (a) PROHIBITED MOVE: This is the most restrictive and the effect is for the controller to stay on the same stage and not look for other moves until the stage change conditions are altered.
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T400 Controller Facilities Manual 10.1 PROHIBITED MOVES When 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 happens: (i) the stage change conditions alter and a move can be made to a stage before the prohibited stage. (ii) the stage change condition is removed and replaced by another stage change condition.
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T400 Controller Facilities Manual may be stage change conditions present for Stage 2 and ROW will go there before Stage 3. In the example in Figure 21.6(a), the move 2-1 is not allowed, but an alternative move into stage 0 is required in VA, UTC and CLF modes. In these modes, Stage 0 is only used for this alternative move and so all moves out of it, apart from Stage 1, are prohibited with an alternative move to Stage 1. During Manual mode the move 0-1 is allowed. 10.
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T400 Controller Facilities Manual 10.5 PREVENTED STAGES/PHASES The deletion of a stage or phase, which may be achieved by use of the master time clock, see section 11, may be simulated by preventing them when certain conditions occur using Special Conditioning Software. If a stage is prevented it will be omitted from the cycle. If a real phase is prevented, then the signals will remain at red whenever a stage that the phase normally appears in is active.
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T400 Controller Facilities Manual 11. THE MASTER TIME CLOCK SYSTEM 11.1 INTRODUCTION The master time clock system (MTCS) provides the following facilities: - A software clock. A crystal oscillator and standby RTC circuit which is battery supported. A software timetable (see section 12). Plan timings for cableless linking in software (see section 9.9). Plan influence definitions in software (see section 9.9).
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T400 Controller Facilities Manual If the mains fails for more than 30 days (this threshold is configurable and also alterable via handset PFD command) then an entry is made in the fault log and the RTC time is considered invalid. The timetable is then not available and the timetable settings are set to their default state. 11.3 TIMETABLE RESOLUTION CLF plans and timetable events are introduced by timetable settings to a resolution of 1 second. 11.
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T400 Controller Facilities Manual 12. THE EVENT TIMETABLE 12.1 PLAN CHANGE/EVENT TIMETABLE There are 64 entries in the Event Timetable. Within each entry, the following 6 pieces of information are specified. 1. The Day Type, which is a number that indicates the day(s) on which this Event occurs. Number 0 1 2 3 4 5 6 7 8 9 Significance Saturday Sunday Monday Tuesday Wednesday Thursday Friday Every Day Every Day except Sunday Every Day except Saturday and Sunday 2.
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T400 Controller Facilities Manual 12.2.1 Synchronisation of Cableless Linking Equipment Synchronisation of Cableless Linking Equipment (i.e. maintaining required offsets for the running plan) in adjacent controllers can be achieved either by the UTC computer or by operators locally adjusting the real time when no link to the UTC computer is existing, or is not required.
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T400 Controller Facilities Manual inactive will set it permanently inactive. The state will continue until another timetable setting switches it back to normal. In the case of a detector input, the permanent active or inactive state will neither cause the Detector Fault Monitor to start timing nor affect the monitoring of the detector. In the example in Figure 21.13, Detector C1 is set inactive during Parameters 1 and 2.
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T400 Controller Facilities Manual If a real phase is deleted, then the signals will remain at red (or blackout in the case of a green arrow phase) whenever a stage that the phase normally appears in is active. If a dummy phase is deleted, then any effect its appearance has on stage changes or timings will be cancelled. When 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.
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T400 Controller Facilities Manual 12.3.1 Event Switch Default States Event MaxSwitch CondSwitch I/P active I/P inactive O/P active O/P inactive Delete Stage Part Time Sign OFF Sign ON Delete Phase Change Timeset Default State Set A and Priority Plan 0 selected.
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T400 Controller Facilities Manual At 12-30 Alternative Maximum Set D is introduced and Dummy Phase I remains deleted with no other facilities - Parameter 3. At 14-00 The standard Maximum Set A is restored and Dummy Phase I remains deleted - Parameter 0. At 17-30 The standard maximum Set A is retained and Dummy Phase I is introduced to provide longer intergreen periods from Phases E and F to Phases A, B and G - Parameter 4.
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T400 Controller Facilities Manual 13. LINKING 13.1 PELICAN CONTROLLER A link to an adjacent Pelican Controller may be provided for the purpose of inhibiting the appearance of its pedestrian stage until certain conditions occur within the Type 400 Controller, in order to prevent the intersection becoming congested. The inhibit facility is incorporated within the Pelican Controller and the Type 400 Controller provides a signal for connection to it.
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T400 Controller Facilities Manual 13.2 REPEAT PULSES The Type 400 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 controller may be repeated to the other. The function of the pulse when received will depend on the method of control of the intersection. One function of the facility is to maintain traffic flow through closely associated intersections.
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T400 Controller Facilities Manual 14. ALTERNATIVE SIGNAL SEQUENCES AND FLASHING SIGNALS 14.1 ALTERNATIVE SIGNAL SEQUENCES To change signal sequences requires changes in the controllers database values not accessible to users, such changes are performed by the Traffic Engineering Department of Siemens. Requirements of signal sequences must be clearly stated in tender documents, and any subsequent customer orders.
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T400 Controller Facilities Manual If this sequence is required, the pedestrian phase has to be programmed as a traffic phase in order to obtain the amber signal. If a wait indicator is required, this has to be programmed as a switched sign phase (see section 3.2.5(b)). Green must always be used for “at right-of-way” for traffic, pedestrian & green arrow phases because of the green conflict facility. 14.
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T400 Controller Facilities Manual 14.3 FLASHING SIGNALS The signals on traffic, pedestrian and green arrow phases are normally a continuous display. If required, the display may be programmed to flash instead. Either the type of phases, i.e. traffic, pedestrian or green arrow, or individual phases may have a flashing display on one or more signals. e.g.
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T400 Controller Facilities Manual 14.4 EXPORT SIGNAL SEQUENCES The following is a list of some of the foreign signal sequences available. If other sequences are required, consult with the Siemens Traffic Engineering Department. BAHRAIN: Blackout start-up and flashing amber part-time with standard British traffic and pedestrian sequences (no blackout). Supply: 240V 50Hz. CHINA: Beijing: Normal startup sequence and blackout part-time mode. Traffic: red - green - amber - red. Supply: 220V 50Hz.
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T400 Controller Facilities Manual HONG KONG: Startup sequence: A 7-10 second blackout, followed by all red usually 8 seconds. Then phases in starting stage go immediately to green. The LRT phase sequence is: Stop - Proceed - Flashing Proceed - Stop. Proceed may be ahead, and/or left turn and/or right turn proceed signals. If two different ahead moves are required, a separate phase is required for each. The vehicle phase sequence will be: red - red/amber - green - amber - red.
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T400 Controller Facilities Manual 15. INPUTS AND OUTPUTS 15.1 INPUTS (I/P) Inputs into the controller may include the following: (i) (ii) (iii) (iv) (v) (vi) (vii) Demands and extensions from detectors (VA and Priority). Demands from pedestrian push-buttons. Extensions from SDE/SA assessors. Extensions from all-red detectors. UTC control bits. Links from other controllers. Hurry Call requests. 15.
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T400 Controller Facilities Manual 15.5 PROVISION OF I/O ON EXPANSION I/O, MAIN PROCESSOR AND SDE/SA BOARDS There are 16 input lines and 16 output lines available on each Expansion I/O Board. All lines on the board are buffered. Up to three Expansion I/O Boards (i.e. boards 0, 1 and 2) may be fitted in the PCB module, with a total of 12 ports available as detailed in section 15.7.
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T400 Controller Facilities Manual 15.6.1 Cable Assemblies A cable assembly consists of a cable with one or two 12-way terminal blocks on one end and a plug for connection to an Expansion I/O Board, SDE/SA Board or Main Processor Board at the other. The following types of cable assembly are normally used: a) One terminal block and a plug for a single 8-input only port (two buffered, six not) into PLE of the Main Processor Board.
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T400 Controller Facilities Manual 15.
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T400 Controller Facilities Manual Figure 15.1 - BLOCK DIAGRAM OF MAIN PROCESSOR BOARD 10.0mm LEVEL 3 ACCESS BUTTON POWER ON LED (GREEN) WATCHDOG FAIL LED (RED) EXTENDED SYSTEM BUS (40 WAY IDC) SYSTEM ERROR LED (RED) TO MANUAL PANEL (34 WAY IDC) TO PHASE DRIVER BOARDS (34 WAY IDC’S) 16 INPUTS (26 WAY IDC) 4 SIGNAL LAMP RELAY OUTPUTS AND 4 RELAY OUTPUTS (16 WAY IDC) 25 WAY D-TYPE HANDSET SOCKET POWER (10 WAY) 10.
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T400 Controller Facilities Manual Figure 15.
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T400 Controller Facilities Manual Figure 15.3 - REAR VIEW OF PCB I/O CONNECTIONS (T400 LARGE SHOWN) PHASE DRIVER M-P CPU SDE/SA I/O PHASE DRIVER I-L PHASE DRIVER E-H PHASE DRIVER A-D I/O EXTENDED SYSTEM BUS TO MANUAL PANEL HEATSINK 16 INPUTS 4 OUTPUTS POWER TO LAMP CONNECTIONS TO MAINS SUPPLY OTU’S AND EXTERNAL CONNECTIONS RELAYS DETECTORS ETC.
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T400 Controller Facilities Manual Figure 15.
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T400 Controller Facilities Manual Figure 15.
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T400 Controller Facilities Manual Figure 15.
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T400 Controller Facilities Manual 15.8 ‘DET’ HANDSET COMMAND Each bit of each port has an I/O line number which is used as the index for the DET handset command and other similar commands. The Det. Reference numbers are as follows: PORT 0 1 2 3 4 5 6 7 8 9 10 11 DET 0-7 8-15 16-23 24-31 32-39 40-47 48-55 56-63 64-71 72-79 80-87 88-95 The normal DET setting for an input or output line is Code ‘2’. This allows the input or output to operate normally. The state may be configured to ‘0’ or ‘1’ if required.
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T400 Controller Facilities Manual An example of this is a stage that is required not to appear initially. The stage is prevented from appearing while the input is active. When the input is set inactive or normal then the stage will be allowed to appear. To override a facility, the controller is programmed so that the facility will be effective when the correct conditions occur or a nominated input is set active. An example of this is flashing amber signals at night time.
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T400 Controller Facilities Manual 15.9.1 DFM Timing 15.9.1(a) Option 1 The timing range of the DFM is 0 to 255 hours in 1 hour steps, although the normal time is 9 or 18 hours. The programmed value may be changed via the handset using the DFD command. Figure 21.7 shows an example configuration sheet including selection of the DFM time, the selection of inputs covered by DFM, and the action on DFM timeout. 15.9.1(b) Option 2 The inputs are assigned to one of eight groups.
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T400 Controller Facilities Manual If the detector is active for greater than 60 minutes. If the detector is inactive for greater than 2 hours. Note that in Group 1 during time set D, the value is 255, this disables the DFM timer. 15.9.2 Switched DFM It is possible for a detector or pedestrian push-button to have switched DFM, i.e. at certain times of day the DFM facility is removed. To achieve this, two inputs are required for each detector or pedestrian push-button requiring the switched DFM.
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T400 Controller Facilities Manual 16. MANUAL PANEL See Figure 16.1. 16.1 STANDARD FACILITIES (Intersection Controller) 16.1.1 Stage Selection Push-Buttons There are 8 stage selection push-buttons (0 to 7) available for use during Manual mode. Push-button 0 is normally allocated to Stage 0, the manual all-red facility, and is designated ALL RED. Push-buttons 1 to 7 may have any 7 of the remaining 15 stages allocated to them. Figure 21.5 indicates where to request the allocations. 16.1.
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T400 Controller Facilities Manual 16.1.6 DFM Reset Push-button (If Configured) The DFM RESET push-button extinguishes the CABINET ALARM lamp, providing the DFM failure causing the alarm indication has been cleared. This push-button also re-establishes fault monitoring for detector inputs overridden via the handset using the ADF command. 16.1.
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T400 Controller Facilities Manual If more than three indicators are required, then the HURRY CALL active or HIGHER PRIORITY active indicators may be used if they are not required for their normal use. Another use is to indicate the state of the switches SW1, SW2 and SW3, e.g. to show if Dim Override is active or not. SW1, SW2 and SW3 can be used to implement optional manual facilities such as: Dim Override. DFM Reset. Part Time (Export only). Signals Flash (Export only). Alternative Maximum.
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T400 Controller Facilities Manual 16.3 PELICAN MANUAL PANEL The Manual Panel used on a Pelican controller is essentially a reduced version of the Intersection Panel, with the exception that the mode select buttons are replaced by ‘Cont Ped Demand’, ‘Cont Vehicle Extend’ and a ‘Select’ button for toggling between ‘VA’ mode and ‘Fixed Vehicle Period’ mode, see Figure 17.1. For a full description of the Pelican Manual Panel, see section 17.3. 16.4 EXTRA FACILITIES 16.4.
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T400 Controller Facilities Manual Figure 16.
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T400 Controller Facilities Manual Figure 16.
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T400 Controller Facilities Manual 17. PELICAN/PEDESTRIAN CONTROLLER 17.1 GENERAL There are a number of pelican configuration PROMs which define the basic operation, e.g. single or dual, MCE0125 or MCE0145, Puffin or Toucan, etc... One of these basic configurations is selected for the controller and it is further altered via the handset, i.e. timings may be altered within approved ranges, IO lines on the controller may be set up to have different functions, etc.
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T400 Controller Facilities Manual 17.1.2(c) Pre-timed Maximum Vehicle Green This is an alternative form of VA mode if selected, the controller will start the max. vehicle green timer as soon as vehicle green is gained, instead of waiting for an opposing/pedestrian demand.
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T400 Controller Facilities Manual 17.3 MANUAL PANEL FACILITIES A different manual panel is required for the T400 when used as a Pelican controller instead of as an intersection controller. Two options are available Standard and Basic. The overlays for these panels are shown in Figure 17.1 and Figure 17.2 respectively. A brief description of the function of each of the switches follows: 17.3.1 Select VA/FVP The mode on the pelican/pedestrian controller may be selected between FVP and VA.
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T400 Controller Facilities Manual 17.4 HANDSET On street selection of pelican facilities by the handset can be carried out. A list of the pelican handset commands is given in section 8 of the Handset Handbook, 667/HH/20200. The following settings can be altered on the pelican controller: 17.4.1 Timings Handset commands are provided to control the pelican timing steps separately from the intersection timings. Use of the intersection timing commands (e.g. MIN, MAX, EXT, IGN, IGS etc.
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T400 Controller Facilities Manual 17.5 I/O LINE ALLOCATION Each of the following functions may be allocated to an I/O line: Input functions UTC ped. inhibit PV UTC ped. demand PX UTC take over TO (enable SC, PV, PX) UTC switch to FVP working UTC switch to alternative timings UTC Dim Override / remote dim control DO UTC vehicle extensions inhibit SC UTC RTC Sync. bit, UTCTS UTC fall back mode FM local link disable LL local link ped. inhibit PV1 local link ped. demand LD call/cancel ped.
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T400 Controller Facilities Manual 17.6 WAIT INDICATORS This facility allows the user to select (via the handset) whether the wait indicator is illuminated by any of the following demands: - Pushbutton ped demands - UTC ped demands - Manual Panel ped demands - Local Link ped demands - Handset ped demands 17.7 AUDIO CONTROL AND MONITOR An output activates the audio unit during the ped. steady green time (MCE0125 only).
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T400 Controller Facilities Manual 17.10 DESCRIPTION OF I/O LINE FUNCTIONS Pelican I/O Summary Control Bits UTC Title Bit Designation (if any) UTC Pedestrian Inhibit ........................................ (PV) UTC Pedestrian Demand ..................................... (PX) UTC Transmission Confirm ................................. (TC) UTC Takeover Control........................................ (TO) UTC Dim Override/Local Link Dim Request ....... (SO) UTC Fall Back Mode...................................
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T400 Controller Facilities Manual 17.10.1 UTC Facilities (Control Bits) UTC Ped. Inhibit (PV) This input signal prevents the pedestrian phase on a pelican. When PV is released, vehicle extensions will be inhibited for a period specified via the handset (UIE). Even if PV is reapplied during this period it will have no effect. UTC Ped. Demand (PX) This input signal puts in a request for the pedestrian stage of a pelican.
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T400 Controller Facilities Manual Switch to Alternative Timings This input signal forces the Pelican to switch to the first alternative set of timings (for vehicle green max time and FVP time only). UTC Dim Override (SO)/Local Link Dim Request One of these two types of remote dimming can be selected via the handset for the pelican/pedestrian.
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T400 Controller Facilities Manual Signals Off Confirm (LE) This output signal indicates that the signals on the CPU pelican/pedestrian are off for whatever reason i.e. Signals switched off from the Manual Panel, Red Lamp Monitor failure, Conflict detected etc. This output signal should be assigned to a Normally Open relay so that it fails to the active (open contact) state.
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T400 Controller Facilities Manual (i) it will ignore the PV1 signal and revert to normal unlinked operation and only recognise the PV1 signal again if it is now released and reapplied. (ii) it can operate in self resetting mode i.e. once the override timer expires it reloads itself, introduces the Link Delay and Link Window times and commences re-timing when either the Window time expires or the controller returns to vehicle green as a result of serving a Pedestrian demand during the Window period.
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T400 Controller Facilities Manual Link Out (Vehicle green confirm) This output signal is essentially a Vehicle Green Confirm signal and can be used to provide a Ped. Inhibit (PV1) to another pelican usually in a staggered link situation. The effect then is to inhibit the ped. of the other pelican while it itself is not in the vehicle green period.
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T400 Controller Facilities Manual NOTE: Pedestrian demands from UTC or local link operate as on the Pelican controller i.e. the demand does not require the kerbside detector to be active in order to be registered and the demand is latched - not cleared when the kerbside timeout period expires. Kerbside Detector Test Output One test output is provided for each Puffin stream.
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T400 Controller Facilities Manual 17.11 TIMESWITCH FACILITIES 17.11.1 Switch Audio off This facility allows the pelican ped. audio signal to be turned off on a time of day basis. The Audio will only switch on/off during the vehicle green period. 17.11.2 Alternative Max. sets This facility allows the four time sets that are available for each of the modes i.e. Pelican VA and FVP to be selectable on a time of day basis. To allow the UTC “Switch to Alternative times” signal (described in 17.10.
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T400 Controller Facilities Manual 17.12.3 Special Detector checking. This facility is used in VA Mode. When enabled the Controller checks that during the Vehicle Green period the detector output changes state. If no change in state is detected then the All Red period is set to 3 Secs. NOTE The use of these commands is fully explained in the T400 Controller Handset Command List. (See section on Pelican). 17.13 CLF FACILITIES The only effect of CLF on a pelican controller is to provide a ped. inhibit signal.
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T400 Controller Facilities Manual Figure 17.1 - Pelican Manual Panel (Standard) SIGNALS CABINET ALARM OFF ON CONT PED DEMAND CONT VEHICLE EXTEND VA SELECT FIXED VEHICLE PERIOD AUX 1 AUX 2 AUX 3 SW 1 SW 2 SW 3 DFM RESET LAMP TEST and for a dual pelican...
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T400 Controller Facilities Manual Figure 17.
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T400 Controller Facilities Manual 18. EQUIPMENT 18.1 PHASE FACILITIES The Intersection Controller can drive up to 16 real phases. The Pelican can drive a traffic and a pedestrian phase. The signals are driven by 4-Phase Driver Boards on the Intersection Controller and 2-Phase Driver Boards on the Pelican. A 4-Phase Driver Board drives four 3-aspect phases and a 2-Phase Driver Board drives two 3-aspect phases with a MCE 0125/MCE 0145 Red Lamp Monitor circuit.
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T400 Controller Facilities Manual 18.3 PED. AUDIBLE / TACTILE INDICATION (MCE0141 CONTROLLERS ONLY) Items Required: K-O-P for Signal Head mounted Audible/Tactile Drive .....667/1/15799/000 K-O-P to add Audio Ind to Push Button Unit ...................667/1/01478/006 Note: If the dimmed supply voltage is 120V, 140V or 160V then the Sonalert Malary SC628P audible indicator can be used. Only at 160V dimming can the Bleeptone A.P. Bessom RS/1 18V be used.
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T400 Controller Facilities Manual 18.5 DUAL LEVEL AUDIBLES Items Required: Kit Of Parts to add secondary buzzer ................................667/1/15292/000 The audible indication can be Dual Level, this is achieved in the same way as for the Pelican. See Section 17.12 and Figure 18.8. The audibles will only change state during the vehicle green period. Output Bits controlling the change over relay, the On/Off relay and terminal block connections are specified in the Works Specification.
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T400 Controller Facilities Manual Detectors Siemens (ST) Self Tune Detectors MkII 667/1/17180/012 = 2 detector channel unit 667/1/17180/014 = 4 detector channel unit Microsense (ST) Self Tune Detectors 667/7/20360/002 = 2 detector channel unit (Type MSE) 667/7/20360/004 = 4 detector channel unit Sarasota AT25Z 654/4/01027/000 = 1 detector channel unit Sarasota MCE25Z Single Detector Channel Unit 26Z 2 Detector Channel Unit 28Z 4 Detector Channel Unit Sarasota MTS35Z Single Detector Channel Unit 36Z 2 Detect
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T400 Controller Facilities Manual Alternatively, a special conditioning flag can be set from the MTC timetable to indicate when to switch to bright, allowing the time of dim state change to be altered by changing the timetable using the handset. However, care must be taken when changing any timetable times/functions via the handset, to ensure that the dim state change time has not altered.
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T400 Controller Facilities Manual 18.12 POWERING EXTERNALLY SITUATED D-DETECTORS WITH PSU TYPE 667/1/20654/000 Items Required: Kit Of Parts required ........................................................667/1/20659/000 This is an unregulated nominal 45 volt PSU option which may be retrofitted to a Siemens T400L or T400S Traffic Controller to provide a DC supply for the old Type D inductive loop detectors fitted in external housings (“beehives”).
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T400 Controller Facilities Manual Figure 18.1 - PEDESTRIAN AUDIBLE INDICATION (SIGNAL HEAD MOUNTING) (Note: If it is required to switch the Audibles, then see Figure 18.2) Pedestrian Signal Head Wait Indicator Box Pedestrian Green 240v (if dim, 160v etc.) 12v (or 8v etc) 5 Amp. bridge rectifier 667/1/15799/000 10kΩ resistor fitted when there is no lamp load (on the transformer), e.g. on a short wait pole.
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T400 Controller Facilities Manual Figure 18.2 - PEDESTRIAN AUDIBLE INDICATION (CONTROLLER MOUNTING) (Note: If it is not required to switch the Audibles, then they may be driven from the signal head transformer itself, see Figure 18.1) Controller Wait Indicator Boxes Pedestrian Green Drive 240v (if dim 160v etc.) 12v (or 8v etc) 10kΩ resistor 22Ω resistor 5 Amp. bridge rectifier 667/1/15799/000 100µF 25v Controller output contact for switching audibles on/off facility.
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T400 Controller Facilities Manual Figure 18.3 - PEDESTRIAN TACTILE INDICATION (SIGNAL HEAD MOUNTING) (Note: If it is required to switch the Tactile, see Figure 18.4) Pedestrian Signal Head Wait Indicator Box Pedestrian Green Man (not flashing) 12v (or 8v etc) 240v (if dim 160v etc.) Tactile Power Unit RS251 or RS252 Tactile Unit 667/1/17390/000 MCE0125 Pelican Signal Head Wait Indicator Box Flashing Pedestrian Green Man 12v (or 8v etc) 240v (if dim 160v etc.
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T400 Controller Facilities Manual Figure 18.4 - PEDESTRIAN TACTILE INDICATION (CONTROLLER MOUNTING) (Note: If it is not required to switch the tactiles, then see Figure 18.3) Controller Signal Head Wait Indicator Boxes Pedestrian Green Drive 240v (if dim 160v etc.) 12v (or 8v etc) Ped. Green Mains Supply 10kΩ resistor 22Ω resistor 5 Amp. bridge rectifier 667/1/15799/000 100µF 25v Controller output contact for switching tactiles on/off facility.
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T400 Controller Facilities Manual Figure 18.5 - POSSIBLE PCB CONFIGURATIONS 2 PCBs Positions 1 & 3 2 PCBs Positions 1 & 5 3 PCBs Positions 1, 4 & 5 4 PCBs Positions 1, 2, 4 & 5 PCB Modules Phase Driver Phase Driver Phase Driver CPU Phase SDE/SA Driver or Exp. IO CPU Exp. IO SDE/SA CPU or Exp. IO Example configuration with 8 to 16 phases Exp. IO SDE/SA CPU or Exp. IO Example configuration for the TCSU 1995 contract Exp.
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T400 Controller Facilities Manual Figure 18.
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T400 Controller Facilities Manual Figure 18.7 - FRONT VIEW OF THE TYPE 400 CONTROLLER (SMALL O/C) (see Figure 15.
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T400 Controller Facilities Manual Figure 18.8 - CONNECTING DUAL LEVEL AUDIBLES SUPPLY Audio unit in wait indicator 667/1/01478/006 Contact protection resistor (normally 22Ω) Change-over contacts located on expansion I/O board Notes:(i) On an intersection controller, the supply for the audibles would originate from a transformer mounted in the controller as shown in Figure 18.2. (ii) For a pelican controller, the supply will come from the 2-phase driver board.
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T400 Controller Facilities Manual Figure 18.9 - Single Sided Access T400L 3U PROVISIONAL DETECTOR RACK POSITION EQUIPMENT MOUNTING FRAME 3U PROVISIONAL FAIL FLASHER POSITION (667/1/21473/250. FOR CCT DIAGRAM SEE 667/DA/21473/000) PCB’S 1 TO 8 PHASES PCB’S 9 TO 16 PHASES PCB CPU ETC CONTROLLER INTERNAL ILLUMINATION (DOOR OPERATED) DISTRIBUTION PANEL SEE 667/GA/20287/250 FOR MAINS DISTRIBUTION P.S.U. CONTROLLER SWITCH, AUTO TRANSFORMER ETC.
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T400 Controller Facilities Manual CPU AND I/O PCB(S) ETC LOCATION PHASE PCB(S) LOCATION UP TO 16 PHASES POLYESTER POWDER COATED, ALUMINIUM HINGED DOOR, COVERING MAINS AREA DANGER VIEW WITH HINGED MAINS COVER CLOSED 667/EB/20200/000 Page 18-16 Issue 9
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T400 Controller Facilities Manual 19. ORIGINAL LAMP MONITORING UNIT This is a separate item of hardware and is not part of the controller. It should not be mistaken for the ‘integral’ Red Lamp Monitor facility on the ‘ancillary processor card’, see section 25. The Lamp Monitoring Unit provides a means to check that the signals at an intersection are in the required state and no failures have occurred.
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T400 Controller Facilities Manual Figure 19.
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T400 Controller Facilities Manual 19.
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T400 Controller Facilities Manual 19.2 RED LAMP MONITORING This facility monitors the state of lamps at an intersection as in standard lamp monitoring. There are 3 outputs from RLMU that affect the controller operation with another 2 outputs which can be connected directly to the OTU. RLMU Output Cause Of Output Controller Input Ref.
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T400 Controller Facilities Manual NOTES (1) CLF Mode - When calculating the minimum cycle time of a CLF plan the Red extensions due to Red Lamp Monitoring should be included with the Intergreen and Minimum running times. CLF plans must have a cycle time greater than the calculated minimum otherwise synchronism may be lost.
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T400 Controller Facilities Manual a) Red Lamp Monitoring on Part-Time Signals The LMU outputs have the following effects on the controller when they become active. Indication 1: The cabinet alarm lamp flashes which overrides a requirement for it to be continuously illuminated. The all red period of intergreens will be extended up to 3 seconds. This extension will not be apparent if the all-red period during the normal intergreen is equal to or greater than 3 Secs.
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T400 Controller Facilities Manual Case 3 - Controller making transition to the Stage which contains the Ped. with Audibles / Tactiles:The Stage will appear without the Ped. phase (All Red will show if the stage is an exclusive Ped. Stage). On entering this stage Case 2 will apply. Following the above cases the pedestrian demands are inhibited and wait indicators illuminated. The pedestrian phase will stay at red until the fault has been rectified and Indication 2 becomes inactive. i.e.
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T400 Controller Facilities Manual Figure 19.3 - LMU Hold without losing phase delay ...STAGE 1 STAGE 2... A AMBER B AMBER C AMBER D AMBER E & F would start at this point but are held off R/A R/A E R/A R/A F G H Time (secs) 0 4 Hold timer started with 7 sec. Intergreen and gaining phase delay timers held. 7 9 Hold timer expires and hold removed. Notes:(i) All intergreens are set to 6 seconds. (ii) Hold time (SIE) set to 7 seconds. (iii) 1st RLM fail active.
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T400 Controller Facilities Manual Figure 19.4 - LMU Hold with losing phase delay ...STAGE 1 STAGE 2... A AMBER B AMBER E & F would start at this point but are held off C AMBER D Phase H would start at this point but is held off AMBER R/A R/A E R/A R/A F G H Time (secs) 0 4 Hold timer started with 13 sec. Intergreen and gaining phase delay timers held. 6 Intergreen from C to H started but held. 12 13 Hold timer expires and hold removed.
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T400 Controller Facilities Manual 19.3 L.M.U. PARALLEL STAGE STREAMING FACILITIES 19.3.1 LMU Supplementary Intergreen Extensions There is an LMU supplementary intergreen extension facility available for each stream. If an LMU indicates one red lamp fail (see Section 19.2) then the all red period of the intergreens on the configured stage to stage movements will be held until the supplementary extension timer expires. The extension period is measured from the stage change point.
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T400 Controller Facilities Manual 19.4 SET UP CONNECTIONS FOR RED LAMP MONITORING Installation is in accordance with Lamp Monitoring Unit Handbook 667/HB/17330/000 Section 5. The pre-installation are detailed in Section 4 and should be as follows: 19.4.1 Link Pin Connections Output State Watchdog fail:- LINK 1 Mains Voltage Supply:- LINK 7 Watchdog Retry Count:- LINK 11 Pins 1 and 3 Pins 2 and 3 Pins 1 and 4 (standard - Open CCT) (for 240v) (standard - 7 Retries) 19.4.
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T400 Controller Facilities Manual 19.4.4 Configuration Requirements Starting Intergreen: A value of 8 seconds is required to enable the LMU to learn the intersection LMU Supplementary Intergreen Extension Time: This should be set to 6 seconds (3 second amber and 3 second red) to give 3 second all red when Indication 1 is active (see section 2.6.7). LMU Max All Red Time: Set this to 11 seconds (3 second amber and 8 seconds red) to give 8 seconds all red when Indication 3 is active (see section 2.6.8).
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T400 Controller Facilities Manual 20. SPECIAL CONDITIONING 20.1 INTRODUCTION There are often special requirements for the operation of a controller which are not covered by its normal methods of working. This is normally due to the peculiarities of a particular intersection.
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T400 Controller Facilities Manual 20.4 READING CONTROLLER TIMERS It is possible to read whether certain controller timers are active, held or expired, and also what the count value is.
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T400 Controller Facilities Manual Example If a side road phase is extending towards its maximum and a demand is inserted for the main road, providing the side road max timer has exceeded 20 seconds then the extensions may be prevented, to allow the main road phase to gain ROW immediately. Phase B at green and demand present for phase A? YES NO Phase B max timer > 20 ? Do nothing YES NO Prevent phase B extensions Allow phase B extensions END MAIN ROAD = PHASE A SIDE ROAD = PHASE B 20.
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T400 Controller Facilities Manual 21. EXAMPLE OF AN INTERSECTION This section consists of an example of an intersection using Siemens MCE 0141 General Specification Forms. As many facilities as possible have been incorporated but it must be appreciated that no controller would have every facility programmed.
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T400 Controller Facilities Manual 22. EXAMPLE OF AN INTERSECTION ROAD TRAFFIC & LIGHT RAIL VEHICLES This section consists of an example of an intersection using Siemens MCE 0141 General Specification Forms. 667/DJ/20200/010. Only the 0141 forms required for this particular example are included. For the complete set of forms see the document above. As many facilities as possible have been incorporated but it must be appreciated that no controller would have every facility programmed.
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T400 Controller Facilities Manual 23. MOVA (MICROPROCESSOR OPTIMISED VEHICLE ACTUATION) At present, MOVA is implemented in separate units which monitor the movement of vehicles through an intersection via their own independent loops and then adjust the operation of the controller to optimise traffic flow. These units are interfaced to the controller via the controllers UTC interface which allows the units to influence the controller. 23.1 INSTRUCTIONS FOR CONNECTING MOVA TO TRAFFIC CONTROLLERS 1.
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T400 Controller Facilities Manual However, some customers will ask for the push buttons to be wired via the UTC interface. In this case, all signals except the pushbuttons will be listed as above, but the MOVA connections for the pushbuttons inputs will be wired to the correct UTC interface reply terminal block. The existing wiring on these terminals which comes from the buffer cards should be removed and tied back.
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T400 Controller Facilities Manual 24. GAS PLINTH 24.1 GENERAL DESCRIPTION A gas plinth can be fitted below the controller to prevent ground-permeating gases from entering the controller; the gas is allowed to escape via the vented plinth. All cables entering into the controller must pass through the gas plinth with cable glands being used to seal the cables.
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T400 Controller Facilities Manual 25. ANCILLARY PROCESSOR (Integral OTU/LMU/RLM) 25.1 GENERAL DESCRIPTION The Ancillary Processor is a double extended Euro sized PCB which connects to the T400 Main Processor via the Extended System Bus. Configuration information for the Ancillary Processor comes from the Configuration PROM on the T400 Main Processor PCB. Handset access to the Ancillary Processor is via the handset socket on the Main Processor board. 25.1.1 FUNCTIONAL APPLICATIONS 25.1.
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T400 Controller Facilities Manual On detection of first red lamp failure the RLM response is :• The T400 system LED is illuminated. • DFM lamp flashes. • The appropriate phases are delayed by a preset amount (specified in the T400’s configuration) to allow extra time for drivers to realise that a red is present on this approach. • Internal fault log is set. • If the controller is configured to output ‘any fail’ and ‘any red’ signals then these are activated on the configured output bits.
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T400 Controller Facilities Manual Red Lamp Monitor Operation 1. The voltage monitor transformer measures the actual voltage on the signals, to allow the current readings to be tracked against actual voltage. 2. The Ancillary processor assesses if a lamp failure has occurred, and counts the number of failures against each colour and phase. 3. The lamp failure information is sent to the T400 over the extended system bus.
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T400 Controller Facilities Manual 25.1.2 PHYSICAL DESCRIPTION 25.1.2(a) Mechanical Construction The PCB is located within the T400 PCB Module, along side the other T400 Logic PCB’s. It interfaces to the T400 Main Processor PCB via the Extended System Bus ribbon cable, in a similar way to the existing SDE/SA PCB. 25.1.2(b) Current Sensors & Voltage Monitor There is a connector on the PCB to allow connection of the current sensors and a voltage monitor which are used for Lamp Monitoring. 25.1.
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T400 Controller Facilities Manual 25.2 ANCILLARY PROCESSOR CARD INSTALLATION 25.2.
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T400 Controller Facilities Manual 25.2.4 Cover The PCB is fitted with a cover (part number 667/2/25192/000 front, 667/2/25193/000 rear). The cover must ALWAYS be fitted before any cables are installed, and should NEVER be removed whilst the telephone cable (from socket SK1 on the PCB) is connected to the telephone network. In the UK, removal of this cover invalidates BABT approval. If the PCB is for RLM only, it may be sub-equipped.
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T400 Controller Facilities Manual 4. S4 - 600 Ohm/High Impedance Switch Switch S4 - Installation (To be performed by qualified/authorised installation/service engineer.) WARNING - THIS SWITCH IS LOCATED UNDER THE PCB COVER. FOR UK USAGE THERE ARE NO USER ACCESSIBLE PARTS UNDER THE COVER. BABT APPROVAL WILL BE INVALIDATED IF THE COVER IS LEFT OFF OR MISSING. This switch is always set to the 600 Ohms position for all Radial, Multi Point and/or Multi Terminal lines.
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T400 Controller Facilities Manual Figure 25.1 - Ancillary Processor PCB Layout Status LED’s PLA 40-Way Extended System Bus Connector LP2 - Carrier Detect LP3 - Transmit Confirm LP4 - Watchdog Fail SK2 - Reply Line Jack Socket SK3 - Control Line Jack Socket ON Lithium Battery Switch - S2 Push down this side for ‘open’ switch (i.e. ‘0’) S1 - 2/4 Wire Selector S3 - Line Level Switch Lithium Battery - B1 Serial No.
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T400 Controller Facilities Manual 25.2.6 Connectors and Cables 25.2.6(a) Extended System Bus Ribbon Cable Connect the T400 extended system bus cable to Plug PLA on the back of the Ancillary Processor PCB. NOTE: Do not connect/disconnect the cable whilst the controller power is switched on. 25.2.6(b) Telephone Cable with 6-way Plug If the installation uses the TC12 outstation facility then the OTU comes fitted with a telephone cable terminated in a 6 way telecom plug.
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T400 Controller Facilities Manual Figure 25.
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T400 Controller Facilities Manual Current Transformers Each controller phase or illuminated indicator that is to be monitored requires 1 current sensor as detailed below. The table also indicates which lamp feeds are passed through the current sense transformer for each type.
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T400 Controller Facilities Manual If the nominal load current (excluding red/ambers) of a particular controller output exceeds 4.0A rms., at nominal mains voltage, then that output should be split and treated as two separate outputs. Note that for red lamp monitoring, no more than 10 x 50W halogen bulbs (or equivalent loading) should be monitored by a current sensor performing RLM.
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T400 Controller Facilities Manual current sensors should then be anchored by passing a TYWRAP or equivalent through the sensor hole and around a suitable fixing point. Up to 23 current transformers can be used per Outstation when equipped with LMU facilities. However, it is recommended that one current transformer is assigned to monitor one complete controller phase (including wait indicators of pedestrian phases), i.e. one sensor per phase.
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T400 Controller Facilities Manual 25.2.7 Effect of Incorrect Switch Settings on the Ancillary Processor PCB (i) S1 - 2/4 Wire Select Switch 4 wire system but with 2 wire selected in error or 2 wire system but with 4 wire selected in error; the OTU may not receive the control signal and will not reply, therefore the carrier detect and transmit confirm LED’s will be OFF.
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T400 Controller Facilities Manual 25.2.8 Fault Finding at the Outstation Symptom System Fault LED lit on T400 Main Processor Watchdog LED On OTU not replying to control message The lamp monitor will not learn the junction or will not detect lamp failures Possible Reason - Use handset to access fault log for information on the type of fault that has occurred, this may be an Integral Ancillary Processor fault. - Software not running correctly.
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T400 Controller Facilities Manual 25.3 RLM GENERAL DESCRIPTION 25.3.1 Background Information The RLM facility is required at part-time signals and at junctions which are fitted with pedestrian audible or tactile devices. The vehicle red lamps are monitored and when lamp failures are detected, the operation of the controller is modified to ensure that unsafe signal conditions do not occur. The RLM function is provided by the T400 firmware operating in conjunction with a RLM unit.
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T400 Controller Facilities Manual 25.4 ENHANCED RLM DETAILED DESCRIPTION In descriptions below, references (C1), (C2) etc. refer to individual configuration items described in section 25.4.5. 25.4.1 Operation On First Red Lamp Fail 25.4.1(a) Phase Appearance Delays When the first red lamp fails (RLF1 indication) on a RLM group, the controller delays the appearance of selected phases by configurable time periods.
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T400 Controller Facilities Manual For demand dependent phases gaining right-of-way when the RLF1 indication is already active, the RLM delay is applied from the point at which the phase could first appear, if it were demanded. If the RLF1 indication is not active at this point, but appears later then the RLM delay is timed from the activation of the RLF1 signal. Once the RLM delay has expired, the phase will appear as soon as its demand conditions are satisfied.
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T400 Controller Facilities Manual 25.4.2 Operation On Second Red Lamp Fail The operation of the controller when a second red lamp fails (RLF2 indication) can be configured for each RLM group to one of the following - see config items (C3) and (C5):a) For Pedestrian RLM Inhibit selected phases - normally pedestrians - from appearing and insert permanent demands for these phases (so that wait indicators are illuminated on inhibited pedestrian phases).
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T400 Controller Facilities Manual 25.4.2(a) Configuration Options The effect of a second red lamp fail on the RLM delays can be configured (C4) for each RLM group to either:a) or b) No effect, i.e. the RLM delays remain in force while RLF1 is active. Inhibit any RLM delays due to RLF1 on this group. In this case, the RLM delays are applied only while the RLF1 indication is active and there is no second red lamp fail (RLF2 indication) on the same RLM group.
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T400 Controller Facilities Manual Only the ‘non-latching’ mode of operation is available on the controller when using a free-standing RLM unit (latching is achieved in the free-standing RLM unit its-self). 25.4.4 Support for Original RLM Facility The controller can be configured to select either the enhanced RLM facility or the original RLM facility (by setting or clearing the appropriate bit in the facilities table see item C10).
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T400 Controller Facilities Manual 25.4.5 Configuration Data (C1) RLM Delayed Phases (PROM item - RLMDFZ) This is an 8 word array, indexed by RLM group. Each word defines the phases whose appearance is to be delayed when RLF1 is activated for that group, with one bit per phase. Bit 15 Phase P Bit 14 Phase O ... ...
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T400 Controller Facilities Manual (C4) RLF2 Cancel Option (PROM item - RLF2_CANCEL_RLF1) This byte contains one bit for each RLM group:Bit 7 Group 7 Bit 6 Group 6 ... ... Bit 1 Group 1 Bit 0 Group 0 0 = RLF2 has no effect on RLF1. 1 = When RLF2 is activated, any phase appearance delays due to RLF1 on this RLM group are cancelled. (C5) Switch off/inhibit Option (PROM item - RLF2_SWITCH_OFF) This byte contains one bit for each RLM group:Bit 7 Group 7 Bit 6 Group 6 ... ...
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T400 Controller Facilities Manual (C7) RLM Phase Delay Times (PROM item - RLMBUV & RAM item - RLMTME) This 16 byte array contains the RLM delay time, in seconds, for each phase. The delay is alterable via the handset, and is in addition to any delay specified in the RLM delay offset, item C2. The handset range is configurable via item C8. The delay time is only applied if RLM delays are enabled on this stage-stage move (see LMUMOV item C12).
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T400 Controller Facilities Manual (C12) LMU Moves Array (PROM item - LMUMOV) This is an existing config PROM item which is used by both the original RLM facility and enhanced RLM operation. It comprises a 16 word array and defines for each stage to stage move whether the RLM delays are to be applied or not. 25.4.6 Configuration Considerations 25.4.
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T400 Controller Facilities Manual APPENDIX A) SUPPLYING DC POWER FOR VEHICLE DETECTORS Table APPENDIX A) -1 gives the total number of 24 volt above-ground detectors or detector cards (2-channel and 4-channel) which can be driven from the internal 24v power supply. This is qualified by the number of Expansion I/O cards and SDE/SA cards which are also being supplied from the same Power Supply.
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T400 Controller Facilities Manual Appendix APPENDIX A) .1) Using 24v 2A Internal Supply for Detectors There is spare capacity on the 24v power supply. The exact amount depends upon the number of Expansion I/O Boards and their equivalents (1 SDE/SA Board @ 250mA is equivalent to two Expansion I/O Boards @ 2 x 125mA). e.g. 5 equivalents represent 3 Exp I/O + 1 SDE/SA. The use of the internal 24v power supply is also dependent upon the distance rules see the following section.
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T400 Controller Facilities Manual Appendix APPENDIX A) .2) Using 24v 2A Internal Supply - Cable limitations Table APPENDIX A) -2 to Table APPENDIX A) -5 indicate the permissible cable lengths and whether 2 parallel cores are required for various detectors. S = Single conductor out and return P = Parallel conductors out and return Assumes 1mm2 cable.
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T400 Controller Facilities Manual Table APPENDIX A) -4) Number of Detector Boards (Sarasota MTS38Z/36Z/35Z) in External Housing(s) Using a Common Cable (160mA per card) Beehives: Detectors: 1 2 1 2 100m S P 125m S P 150m P 175m P 200m P 225m P 3 3 4 5 4 6 7 5 8 9 6 10 11 12 250m Table APPENDIX A) -5) Number of 24v +/-20% 8VA (333mA) Above Ground Detectors Using a Common Cable Max cable run from controller 25m 50m 75m 100m 125m 150m 175m 200m 667/EB/20200/000 Page A-4 Number
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T400 Controller Facilities Manual Appendix APPENDIX A) .3) Using 27.5v Additional Detector PSU Where there is insufficient spare capacity on the 24v power supply the 27.5v supply must be called up. (Table APPENDIX A) -6 to Table APPENDIX A) -8) The distance rules are different for this supply as the allowable voltage drop is greater due to the higher supply voltage;- see Table APPENDIX A) -9 to Table APPENDIX A) -12.
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T400 Controller Facilities Manual Appendix APPENDIX A) .4) Using 27.5v Detector Supply - Cable Limitations Table APPENDIX A) -9 to Table APPENDIX A) -12 indicate the permissible cable lengths and whether 2 parallel cores are required for various detectors. S = Single conductor out and return P = Parallel conductors out and return Assumes 1mm2 cable. NB: The following tables for distances assume the use of 1mm2 cable with the detector current specified.
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T400 Controller Facilities Manual Table APPENDIX A) -11) Number of Detector Boards (Sarasota) in External Housing(s) Using a Common Cable (160mA per card) Beehives: Detectors: 1 1 2 3 2 4 5 3 6 7 4 8 5 100m S S S S P P P P 125m S S S P P P P 150m S S S P P P 175m S S P P P 200m S S P P 225m S S P 250m S P P 9 6 10 11 12 Table APPENDIX A) -12) Number of 24v +/-20% 8VA (333mA) Above Ground Detectors Using A Common Cable Max cable run from controller 25m
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T400 Controller Facilities Manual Appendix APPENDIX A) .5) Cable Distances for SDE NOTE: SDE/SA cabling assumes the use of 2 Channel Detectors, some 4 Channel Detectors can be used for SDE/SA. See Manufacturer’s information. Stop Line T400 ‘n’ m 91m 68m NB: The following tables for distances assume the use of 1mm2 cable with the detector current specified. Use of larger cable will increase the length of run possible as will use of detectors with a lower operating current.
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T400 Controller Facilities Manual Table APPENDIX A) -14) Cable Distances for SDE using Sarasota Detectors (2 CHANNEL) Cable length from stop line to controller Cable 1mm2 Supply Voltage for Detectors Detector PSU Output Voltage ‘n’ metres 0.0362 Ohm/metre loop 21V - 40V 27.5V+4.5% (Max 28.74V, Min 26.26V) Max permissible volt drop (27.5V PSU) = 5.26V Logic PSU = 24v+6% (Max 25.44V, Min 22.56V) Max permissible volt drop (24V supply) = 1.
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T400 Controller Facilities Manual Table APPENDIX A) -15) Maximum Distances for feeder cable when using ‘D’ Detectors Load Calculation Maximum O/P current Current per Regulator board Current per detector board Minimum input voltage to regulator Minimum power supply output voltage = = = = = 500 milliamps 16 milliamps (1 regulator per beehive) 48 milliamps 32v 35.4v Maximum number of cards driven Assuming two beehives the maximum number of cards that can be driven from the Power Supply is nine.
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T400 Controller Facilities Manual APPENDIX B) 50-0-50 Volt Controller B.1 50-0-50 volt Controller Note: This version of the T400 does not meet DTp specification MCE0141 in respect of dimming voltages and voltage sensing. This is inherent in the 50-0-50 volt output but it meets the equivalent figures which are multiplied by (50+50)/240. The 50-0-50 volt controller is a version of the standard so that the voltages on the cables leaving the controller are 50 volts A.C.
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T400 Controller Facilities Manual B.2 Dual Solar Cell (Only Available on 50-0-50 Volt Controller) The solar cell facility can be modified to enable two solar cell outputs to be monitored. The solar cell outputs are connected via two relays to two controller inputs. One of the solar cells will then cause the controller to change between dim and bright in the normal manner. The part number for the dual solar cell kit is 667/1/21020/000.