Communication & Pantographs

Question 1

If CCTV fault light is illuminated and screen is inoperative what do you do?

Answer 1

CCTV Central Control CB
DC-DC Inverter PA, PI Display CB

If set - trip and reset
If tripped - reset

If unable to reset book TMM

Question 2

If PID isn’t working what do you do?

Answer 2

DC-DC Inverter PA, PI Display CB

Passenger Information Display CB

If set - trip and reset
If tripped - reset

If unable to reset book TMM and make manual announcements

Question 3

If DTRS is not working how do you reset it?

Answer 3

Deactivate cab

Trip and reset DTRS CB

Activate cab

Re-enter TDN

Radio test

TMM

Question 4

If you were unable to reset DTRS how do you isolate it?

Answer 4

Deactivate cab

Trip DTRS CB

Reactivate cab

Place portable radio into DTRS cradle - unpowered

Question 5

What happens if stand alone PA and DTRS PA are both inoperative?

Answer 5

Train removed from service

Question 6

If PA system not working what do you do?

Answer 6

PA fault light illuminated

Check PA System CB

Check DC-DC Inverter PA, PI Display CB

If tripped, reset

If not tripped use DTRS PA

Question 7

If PA system fails in running what do you do?

Answer 7

Check DTRS PA operational

If so, TMM and continue running

Question 8

If PA system fails in running and DTRS PA also failed what do you do?

Answer 8

Check all CBs in leading cab

If all set - trip DC-DC Inverter PA, PI Display CB for 2 minutes

Reset it and check PA

If operational book as rectified in running

If inoperative train must be removed from service

Question 9

What does the Panto Control CB do?

Answer 9

Train lined

Raises all pantographs

Question 10

What does Panto Motor CB do?

Answer 10

Local

Isolated the pantograph in that cab.

Question 11

What do you do if one or more pantographs fail to raise?

Answer 11

Check Panto Control CB in driving cab

Check Panto Motor CB in affected driving cab

If either tripped, reset and push Panto Up button

If CB set and pantos fail to raise, try another cab, or operate manually (RHS door 2, 2nd panel)

Question 12

What do you do if all Pantographs fail to raise?

Answer 12

Check Panto Control CB in affected cab

If tripped - reset
If set - trip and reset

Push Panto Up button

Observe pantos raise

Question 13

What do you do if you have tripped and reset Panto Control CB and all pantos still don’t raise?

Answer 13

Check if they will raise from another motor

If they don’t - Train Stable from leading motor

Wait 1 minute

• Trip Panto Motor CB
• Raise lead panto manually (RHS door 2, 2nd panel)
• Press Panto Up button
• Reset Panto Motor MCB

Question 14

What do you do if Pantos fail to lower when Train Stable button is pressed?

Answer 14

Check Train Stable HSCB & Light Control MCB in local driving cab

If tripped - reset
If set - trip and reset

Check Shutdown Delay CB in T Car

If tripped - reset
If set - trip and reset

Question 15

If you have checked Train Stable, HSCB & Light Control MCB and Shutdown Delay CB and Pantos still won’t lower what do you do?

Answer 15

Trip TCU CB as it is possible the TCU doesn’t realise the train is stationary

If tripped - set and press Stable button

if set, press Stable button

If pantos still don’t lower leave them in raised position and book TMM

Question 16

What do you do if Pantos fail to lower when Panto Down button is pressed?

Answer 16

Check Panto Motor CB in affected motor

if tripped - set and Panto down button

if set - try Panto down button again. If they don’t lower leave up for fitters to inspect

Question 17

How do you isolate a pantograph?

Answer 17

Master key switch OFF

Train Stable button

Trip Panto Motor on affected cab

Lower with crank handle if required

Master key IN and ON

Press Panto Up button

Ensure defective panto remains lowered

TMM