Ats Ultra Project – Original Equipment Manufacturer Manual For Automatic

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ATS ULTra Project – Original Equipment Manufacturer Manual for Automatic Vehicle Protection Draft 3 Proprietary to Advanced Transport systems Ltd

1.1. Tools required for Maintenance and

Repair

Description

Part no.(If required)

1

Screwdriver set

Standard set

2

Allen key set (metric)

Standard set

3

security hex/torx bits

Standard set

4

Crimp gun for connectors

Tyco crimps

5

Crimp gun for ferrules

Grip on 912.07

6

DVM

Standard

7

Ferrell crimps

8

2.

Fault Diagnosis

Under normal operation conditions and with no vehicle present all the ‘Proceed LEDs should be illuminated in the GEE cabinets. This is with the exception of some GEE boxes situated on the roundabout were the yellow inhibit LED is on permanently on the in fills, merges and diverges. The fault diagnoses should be carried out using the ATS trolley with the Redcliffe monitoring system. The proceed signals may be lost momentarily as the receivers approach loop boundaries, this is normal and should be expected. Only when the proceed /speed signals are lost for a sustained section of the loop will indicate a problem. The trolley should be pulled along the guideway and the six measurements visually monitored. Checks should be made for loss of proceed signal strength (F1 & F2). The signal strength should never fall below 1000 mV anywhere on the guideway The signal strength on the roundabout will be lower than that of the straight sections due to the wider loop widths on the merges and diverges. Measurements on the trolley differ to those of the vehicle, so these measurements are for indicating faults, not for accurate readings. The vehicle box and monitoring system can be remove from the trolley and fitted to an ATS vehicle in order to obtain more accurate measurements. Note. This procedure should be carried out whenever a repair or calibration is completed

2.1. Monitor System Faults The support required here is to process and relay on to Central Control the alarm messages provided by the AVP. The messages can be processed to locate faulty loops by: Commercial In Confidence

Page 1 of 16 6th August 2008

ATS ULTra Project – Original Equipment Manufacturer Manual for Automatic Vehicle Protection Draft 3 Proprietary to Advanced Transport systems Ltd



Vehicle undetected - noting gaps in the ‘Loop Occupied’ sequence as the vehicle passes and/or appearance of the ‘Detector Fail’ signal.



Loops not transmitting – no ‘Proceed On’ signal from one or more loops when not inhibited, and/or appearance of the ‘Proceed Signal/Inhibit Fail’ signal.



Failure to inhibit loops correctly – no or spurious ‘Loop Inhibited’ signals when expected, and/or appearance of the ‘Proceed Signal/Inhibit Fail’ signal. Listed below are the faults that could be detected by the control room.

2.1.1.

Loop Faults

Fault No. Description

Flow diagram Reference.

1

Fails to detect Vehicle

16.7

2

False vehicle detection

16.6

3

Fails to Inhibit

16.7,16.12

4

False Inhibits

16.4

5

False Proceed signal (Same as 3)

16.7,16.12

6

No proceed signal

16.4,16.8,16.12

7

Monitoring signal fault with no fault in functionality 16.11

8

Speed limit incorrect

16.10

9

False Alarm.( Alarm activates with no real fault)

16.11

2.1.2. GEE faults

Fault No

Description

Flow Diagram Reference

1

Fails to detect vehicle on one side

16.7

2

Fails to proceed on one side

16.9

3

Interface Failure(Any inter GEE inhibits, Power down inhibit or sync failure

16.8

4

Master sync Failure

16.3,16.8

Commercial In Confidence

Page 2 of 16 6th August 2008

ATS ULTra Project – Original Equipment Manufacturer Manual for Automatic Vehicle Protection Draft 3 Proprietary to Advanced Transport systems Ltd

2.1.3. Vehicle Faults

Fault No. Description

Flow Diagram Reference

1

Fails to transmit presence signal( Vehicle undetected) 16.7

2

Faulty Speed signal provided

16.1

3

False proceed or speed signal

16.11

4

No proceed or speed signal

16.9,16.12

5

Incorrect speed signal

16.10

Commercial In Confidence

Page 3 of 16 6th August 2008

ATS ULTra Project – Original Equipment Manufacturer Manual for Automatic Vehicle Protection Draft 3 Proprietary to Advanced Transport systems Ltd

2.2. Flow Diagram of Proceed Signal Inhibit

Fault on one Loop control PCB

Proceed signal/ Inhibit fail LED 1 illuminated on one Loop control PCB

Remove suspect Loop controller PCB using red eject lever and replace with spare Loop control PCB

Yes Loop Control PCB faulty

Has fault gone?

No

15.2(a)

Turn the rack 90º to gain access to backplane Ref 12.1.1

Unplug the preamp plug associated with the suspect loop control PCB. Unplug the next preamp plug along and swap the two over

Has the fault moved from the original loop control PCB to the next one along?

No

Connection problem between Loop control PCB and backplane

Yes

Preamp cable, preamp or loop connection problem. Remove the GRP lid to gain access to the suspect Preamp box.

CONTINUED Commercial In Confidence

Page 4 of 16 6th August 2008

ATS ULTra Project – Original Equipment Manufacturer Manual for Automatic Vehicle Protection Draft 3 Proprietary to Advanced Transport systems Ltd

Are connections on TB1 & J1 on preamp secured?

Secure connectors and check for fault condition

No

Has gone?

Connection problem

Yes

Yes Preamp PCB fault

Open preamp box

Yes

No

(Ref 13.1.5) Replace preamp. Has fault gone from loop control PCB?

No

Check continuity of preamp cable and crimped connectors

Commercial In Confidence

Page 5 of 16 6th August 2008

ATS ULTra Project – Original Equipment Manufacturer Manual for Automatic Vehicle Protection Draft 3 Proprietary to Advanced Transport systems Ltd

2.3. Flow Diagram of Proceed Signal Inhibit

Fault on all Loop control PCB

PSIF: Proceed signal/Inhibit Fail Proceed signal/ Inhibit fail LED (1) illuminated on all Loop control PCBs in GEE cabinet on side ’A’ or side ’B’ or both

Yes Are PSIF LEDs illuminated on sides A & B?

Check next GEE box Upstream. Are all PSIF LED s illuminated on sides A or B?

No Replace Slave Sync PCB. Has fault gone? Replace Master Sync PCB Refer to FAT test

No

Yes Slave Sync PCB fault. .Refer to FAT test

Replace Oscillator coder PCB.

Yes

Has fault gone?

Commercial In Confidence

Oscillator Coder PCB fault. Refer to FAT test

Page 6 of 16 6th August 2008

ATS ULTra Project – Original Equipment Manufacturer Manual for Automatic Vehicle Protection Draft 3 Proprietary to Advanced Transport systems Ltd

2.4. Flow Diagram of False Inhibit Fault on

Loop Control PCB One inhibit LED illuminated with no vehicle in close proximity

Remove the next 2 Loop control PCBs to the right of the inhibited one

No

Is the Loop PCB still inhibited?

Fault with one of the adjacent Loop control PCB. Refer to Loop Control FAT test

Yes Replace suspect Loop PCB with spare

No

Fault with Loop Control PCB. Refer to FAT test

Is the Loop PCB still inhibited?

Yes Is suspect loop PCB associated with an impact switch?

Yes Reset impact switch

No Possible Backplane connection problem. Refer to 13.1.3 to replace backplane.

Note: If backplane is of the configurable type check for broken connections on the back. Ref 10703-LK- GEExxx

2.5. Flow Diagram of Detector Fail LED fault on

Loop Controller PCB Commercial In Confidence

Page 7 of 16 6th August 2008

ATS ULTra Project – Original Equipment Manufacturer Manual for Automatic Vehicle Protection Draft 3 Proprietary to Advanced Transport systems Ltd

Is the Detector fail LED permanently illuminated on the Loop control PCB?

No

Flashes on occasionally This may not be a problem please refer to Redcliffe

Is other side operation correctly?

No

Determine fault with other side

Yes Yes

Is fault still present?

Swap suspect Loop control PCB with spare

Has Detector fail LED gone out?

No

Please refer to Redcliffe

Yes Loop control PCB fault

Commercial In Confidence

Page 8 of 16 6th August 2008

ATS ULTra Project – Original Equipment Manufacturer Manual for Automatic Vehicle Protection Draft 3 Proprietary to Advanced Transport systems Ltd

Flow diagram of False Occupied fault on Loop Control PCB. 2.6.

Occupied LED (5) illuminated on loop control PCB with no vehicle present

Replace suspect loop PCB with spare

Has fault gone? Yes

Fault with Loop control PCB Please refer to Loop Control PCB FAT test

No Use Preamp test box to check preamp wiring and preamp

Yes Is preamp functioning correctly?

Please refer to Redcliffe

No Problem with Preamp/wiring Refer to 15.2 (a)

Commercial In Confidence

Page 9 of 16 6th August 2008

ATS ULTra Project – Original Equipment Manufacturer Manual for Automatic Vehicle Protection Draft 3 Proprietary to Advanced Transport systems Ltd

Loop control PCB Fails to Detect Vehicle on one side 2.7.

Loop control PCB fails to detect vehicle entering loop (on one side)

With no vehicle present No Only Proceed LED (4) should be illuminated

Proceed signal/ inhibit fail LED (!) illuminated see 15 Detect Fail LED (2) Illuminated see 15. Inhibit LED (3) Illuminated see 15.

Yes

Position ‘Test trolley’ (Ref 15.1) over suspect loop. Only the proceed LED (4) and the Occupied LED (5) should be illuminated

Problem with Vehicle board. Please refer to Vehicle PCB FAT test

No

Replace Loop Control PCB.

Faulty Loop controller PCB

Yes

Is test trolley detected?

No

Problem with pre-amp or wiring. Please refer to flow diagram 15.2 (a)

Commercial In Confidence

Page 10 of 16 6th August 2008

ATS ULTra Project – Original Equipment Manufacturer Manual for Automatic Vehicle Protection Draft 3 Proprietary to Advanced Transport systems Ltd

2.8. Pre-amp faults Gain of Preamp too high If the gain of the preamp has become too high it is possible for the preamp in that loop to detect a vehicle too early and inhibit itself. This faults would cause a dropout of proceed signal on that side. This fault could also affect loops in close proximity such as at merges and diverges. Gain of Preamp too Low The vehicle may lose the proceed signal in the loop controlled by the faulty preamp.

Faults between GEE Cabinets The system is design that if a fault should occur between cabinets the system would fail safe and permanently inhibit the affected loops.

Commercial In Confidence

Page 11 of 16 6th August 2008

ATS ULTra Project – Original Equipment Manufacturer Manual for Automatic Vehicle Protection Draft 3 Proprietary to Advanced Transport systems Ltd

2.9. Flow diagram of loss of proceed signal

on vehicle

Loss of Proceed signal to vehicle

Is there a vehicle

Provided the vehicle is within minimum headway, the system is inhibiting correctly.

Yes

A head

No

Check the status of the loop control PCB associated with the loop at which proceed signal is lost

Yes Is occupied LED (5) illuminated on associated Loop PCB?

Refer to flow diagram 16.4

No Is ‘lost transmitter alarm’ activated on vehicle PCB? (Ref. Vehicle PCB FAT) test

No

Put ‘Txbox’ in loop (ref 15.4)

Yes

Is Occupied LED ILLUMINATED? The problem is with preamp or associated wiring.

Fault with vehicle PCB or Vehicle Transmitter. Check calibration of 1 kHz on vehicle PCB. Refer to Vehicle FAT test

No

Ref 16.6. If this fault has occurred on a roundabout the problem could be connection problem on configurable backplane

No

Replace loop control PCB with spare.

Yes

Is occupied LED on?

Commercial In Confidence

Fault with loop control PCB. Refer to FAT test

Page 12 of 16 6th August 2008

ATS ULTra Project – Original Equipment Manufacturer Manual for Automatic Vehicle Protection Draft 3 Proprietary to Advanced Transport systems Ltd

Flow diagram for loss of speed signal on vehicle

2.10.

Speed jumpers on back Yes plane incorrect. See 12.1.3

Is Speed signal stable but incorrect

No

Loss of speed or unstable speed readings

Are all or most of the loops in one GEE cabinet affected?

No

No

Fault with loop control PCB. Refer to FAT test

No

Yes

Fault with Vehicle box or TX/RX units. Refer to FAT test

Swap associated loop Yes control PCB with spare. Has fault gone?

Change preamp (ref 13.1.5 preamp removal) Has fault gone?

Use ATS ‘test trolley’ to check speed readings. Are faults still present?

Preamp fault. Refer to FAT test

Yes No Swap Oscillator PCB with Spare.

Refer to Redcliffe

No Speed signal ok?

Yes Suspect Oscillator PCB requires calibration. Refer to FAT test

Commercial In Confidence

Page 13 of 16 6th August 2008

ATS ULTra Project – Original Equipment Manufacturer Manual for Automatic Vehicle Protection Draft 3 Proprietary to Advanced Transport systems Ltd

Monitoring signal fault with no fault in functionality

2.11.

Monitoring system detects fault but system functioning correctly. Alarm indicated in control room.

Replace the suspect loop Control PCB. ** Has fault been removed?

Yes

Loop Control PCB Fault. Refer to FAT test

No

Possible problem with ribbon cable connection on rear of backplane to monitoring box (ref 6.2 for backplane details).

Note. A damaged Opto-coupler on the output of the loop control PCB may only show in the control room and not on the PCB itself.

Check monitoring box

Commercial In Confidence

Page 14 of 16 6th August 2008

ATS ULTra Project – Original Equipment Manufacturer Manual for Automatic Vehicle Protection Draft 3 Proprietary to Advanced Transport systems Ltd

2.12.

Loss of proceed signal on one or both

side

Loss of proceed signal one or both sides of GEE

Are all LED indicators off in GEE?

Check power to GEE cabinet

Yes

Is the Proceed fail/inhibit LED (1) illuminated on both sides

Yes Check Master sync PCB. Note. Sync LED will only be illuminated if a fault is present. Refer to Master Sync FAT test.

No

Is the Proceed fail/inhibit LED (1) illuminated on one side Yes Replace the oscillator PCB, if this doesn’t solve the problem replace the slave sync PCB.

Possible connection fault between GEE cabinets. No (Refer to Fig 6 System Oscillator) .This shows the interconnections of the ‘sync’ signal between GEEs.

Yes

Retest and repair faulty PCB

Has Fault been rectified?

Commercial In Confidence

Page 15 of 16 6th August 2008

ATS ULTra Project – Original Equipment Manufacturer Manual for Automatic Vehicle Protection Draft 3 Proprietary to Advanced Transport systems Ltd

3.

Spares and storage requirements

All spare PCBs should be kept in sealed antistatic bags and stored in a dry environment away from sunlight. The specified storage temperature should be between -40ºC to +55ºC Assembly ID Assembly Preamp assembly

Quantity 48

(to include seal and l housing Control Loop PCB

48

Master Sync PCB

3

Slave Sync PCB

5

Oscillator ‘A’

5

Oscillator ‘B’

5

Backplane(none config)

2

Backplane(config)

4

Rack Assembly

2

Vehicle Assembly

3

(Includes TX & RX)

Commercial In Confidence

Page 16 of 16 6th August 2008

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