Electrical Faults

Question 1

What happens when a Siemens is stabled?

Answer 1

Marker lights and saloon lights including emy lights go out
PA doesn’t work
Saloon doors lock

Question 2

Faults that can be fixed by a train stable

Answer 2

CCTV
HVAC
Traction
Service brake
Compressor
Park brake
SIV
Safety loop
Reduced performance fault light

Question 3

Where can a train stable be performed?

Answer 3

At a station platform
Under home signal protection
Where level crossings won’t remain active

Question 4

After you have been given permission to stable the train what do you do?

Answer 4

PA
Close doors
Remove key
Stable train button
Confirm pantos down
Wait 2 mins
Activate cab
Raise pantos

Question 5

Where are the fault lights and CBs on the trailer car?

Answer 5

Right of door 2

Question 6

What does the general fault light tell you? How does it tell you and how do you clear it?

Answer 6

There’s a fault on the train and you need to check the other fault lights. It flashes and you press fault acknowledge

Question 7

What does the 1st and 2nd unit indicator tell you?

Answer 7

1st - first 3 cars
2nd - second 3 cars

Question 8

If any of the local fault lights are illuminated what does that mean?

Answer 8

This car

Question 9

If the critical defect light is illuminated what could be some causes? (3)

Answer 9

Critical fault on the friction brake system
A complete loss of aux power (both SIVs on one unit)
Defective wheel slip affecting the operation of the sanders

Question 10

If you can’t move the train with a critical defect what do you check?

Answer 10

Friction brake and monitoring CB in all cars of affected unit
Static inverter monitoring CB in the trailer car
Reset if you can otherwise disabled

Question 11

What does the maintenance fault indicate?

Answer 11

Service is required. Safe operation of the train shouldn’t be affected

Question 12

What does the reduced performance indicate?

Answer 12

One or more motor cars are failing to deliver traction power

Question 13

What does the train do in relation to traction system faults?

Answer 13

The TCU will try and reset the system by doing a component test. If the test fails, the affected traction system will be automatically isolated

Question 14

What can a driver do in relation to traction system faults?

Answer 14

Go to coast for a bit and see if the fault clears

Question 15

During slip/slide event what fault light may illuminate and what can you do?

Answer 15

Reduced performance into coast for 2 sec

Question 16

If you can’t deactivate a cab what CB can you trip?

Answer 16

Cab/train manned

Question 17

CCTV faults, What c/bs do you check? And if they are set which one do you trip and reset?

Answer 17

CCTV central control
* DC-DC inverter PA PI display

Question 18

PID failure what c/bs do you check? If set which one do you trip and reset?

Answer 18

*DC-DC inverter PA PI display for 30sec
Passenger info display

Question 19

How do you reset the DTRS?

Answer 19

Deactivate cab
Trip and reset DTRS c/b
Activate cab
Enter TDN and do radio test

Question 20

How do you isolate the DTRS?

Answer 20

Deactivate cab
Trip DTRS C/B
Activate cab
Use portable

Question 21

PA fails on a dock. What C/b do you check and what else could you do to rectify?

Answer 21

PA system c/b
DC-DC inverter PA PI display
Train stable

Question 22

PA fails in running what do you do?

Answer 22

Is the DTRS pa working?
If both not working check all C/Bs
Trip DC-DC inverter PA PI display for 2 mins
Works? Yay
Doesn’t work and both PAs are out? Remove from service

Question 23

One Panto fails to raise.

Answer 23

Check Panto control and motor
Might to raise from another cab or manually

Question 24

All Panto fail to raise

Answer 24

Check Panto control
Can you raise them from another motor?
Stable train for 1 min
Trip Panto motor
Manually raise leading
Activate cab
Panto up
Reset cb

Question 25

Train stable pantos won’t lower

Answer 25

Check
- Train stable m car
- shutdown delay t car
- TCU m car
None of that work leave it and book it

Question 26

Panto down and pantos don’t lower

Answer 26

Check
- Panto motor
If that doesn’t work, leave and book

Question 27

Isolating pantos

Answer 27

Key off
Stable the train
Trip Panto motor manually lower if needed
Activate cab
Panto up
Make sure Panto stays down

Question 28

What happens when you loose both SIVs?

Answer 28

You loose all of BATH only emy lighting and half cab fluro

Question 29

SIVs won’t start with less then how many volts?

Answer 29

82

Question 30

How do you manually start the SIVs

Answer 30

Train stable
Trip Panto motor manually raise leading Panto
Go to SIV container and press self excite until it clicks
Activate cab
Panto up
Reset Panto motor

Question 31

What does the door systems fault light tell you? And what do you need to do?

Answer 31

The DCU has detected a door fault and has isolated it
If you have steady blue light, wait till you change ends to isolate otherwise go to the defective door and isolate

Question 32

FDCL what do you do?

Answer 32

Release doors
PA
close doors
Still flashing
Trip reset door control train lines
Realse and Close doors
Still flashing
TEC PA
release and close doors again you have 30 sec to find door
Press button button and iso with tri
Didn’t work?
Trip applicable door control power supply cb
Manually close doors
Iso with tri
Reset cb
Book it

Question 33

Extinguished door close light

Answer 33

DER activation?
If not then can to cab it may be a cab door open otherwise go for a walk and find the cab door
Can rectify?
Door loop bypass and shunt