Siemens Faults

Question 1

What happens when a Siemens train is stabled?

Answer 1

All market lights and saloon lights (including emy) extinguish
Pa is inoperative
Saloon doors remain locked

Question 2

What’s the best way to fix an electrical fault?

Answer 2

Stable

Question 3

How long do we stable a train for?

Answer 3

2 mins

Question 4

If we have to stable on a main line who do we have to call?

Answer 4

Train control

Question 5

If asked to stable where will they ask us likely to do it?

Answer 5

At a platform
Protected by home signals
Where level crossings won’t activate

Question 6

If a general fault light is flashing what does that mean?

Answer 6

A fault in a subsystem on the train has developed
Also if it needs maintenance

Question 7

If we get a fault on the train, what fault lights will you look at first to see where it is?

Answer 7

1st and 2nd unit

Question 8

What does a critical defect fault light mean?

Answer 8

A critical fault in pneumatic friction brake system
Complete loss of aux power supply
A wheel slip unit affecting the sanders

Question 9

If we can operate the train after a critical fault light how must we operate the train?

Answer 9

At low speed
Retrain at first available station
Shunt to nearest siding

Question 10

If we can’t move the train with a critical fault light what must a driver check?

Answer 10

Friction brake and monitoring mcb
Static inverters monitoring mcb

Question 11

Do we declare ourselves disabled if we cannot reset the friction brake and siv mounting mcbs?

Answer 11

Yes

Question 12

Does a maintenance fault light affect the safe operation of the train?

Answer 12

No

Question 13

What are the two fault lights for traction systems defects? Which is train lined and which is local?

Answer 13

Reduced performance (train lined)
Traction systems (local)

Question 14

If we get reduced performance and traction systems how would we attempt to clear the fault?

Answer 14

Move the MC to coast (0) for a limited time

Question 15

Can we isolate traction motors on this train?

Answer 15

No

Question 16

What’s the minimum amount of traction motors we need for safe operations of the train?

Answer 16

50%

Question 17

While powering if we get a slip/slide event and get a reduced performance light how can we attempt to clear the fault?

Answer 17

Move MC to coast (0) for at least 2 seconds

Question 18

What indication would you get in the active cab (lead) if someone else puts their key in and on?

Answer 18

Another cab active light will illuminate

Question 19

What is the indication if there is an attempt made to activate another cab if another cab is already activated?

Answer 19

Another active can indicator illuminates in both cabs and a buzzer sounds in the cab where the other attempt is being made

Question 20

If we are doing a prep and there is another cab active when there shouldn’t be, what do we do to rectify?

Answer 20

Inspect cleaners key switch in lead
Make cab to cab
Nobody responds inspect each cab for being active including cleaners keys

Question 21

How must a driver first attempt to deactivate the cab if there is no key in?

Answer 21

Inserting the Siemens key and activating and deactivating

Question 22

If a driver is unable to deactivate a cab, what must the driver do?

Answer 22

Trip cab/train manned mcb
Submit tmm

Question 23

If there is no cctv what circuit breakers do you check?

Answer 23

Cctv central control mcb
Dc-dc inverter pa, pi display mcb
If they are set trip and reset
If they are tripped reinstate

Question 24

If there is failure of pids what mcbs do you check?

Answer 24

Dc-dc inverter pa, pi display
Passenger information display mcb

Question 25

How do you reset a dtrs? (6 steps)

Answer 25

1. Deactivate cab
2. Trip and reset dtrs mcb
3. Activate cab
4. Re-enter tdn
   5.conduct radio test
5. Submit tmm rectified in running

Question 26

How do you isolate a dtrs and run the train without it? (4 steps)

Answer 26

1.deactivate cab
2. Trip dtrs mcb
3. Re-activate cab
4.portable dtrs in cradle
Re enter tdn manually in portable
Only use when safe to do so

Question 27

How many PA systems are on the train and what are they?

Answer 27

Stand alone (phone mic)
Backup on dtrs (pa button)

Question 28

Is the train still operational if neither pa is working?

Answer 28

No must be taken out of service

Question 29

What must a driver do if there is a failure of the pa on a dock?

Answer 29

Check pa fault light is illuminated
Check PA systems mcb
Check dc-dc inverter pa,pi display mcb
If they don’t work after tripping and resetting:
Stable the train

Question 30

If there is a pa failure in running what must we do?

Answer 30

Check PA system on dtrs
If that doesn’t work check all mcbs in lead
If they are set trip dc dc inverter pa,pi display mcb for 2 mins
Reset and recheck if pa works

Question 31

What are the 4 different pants fault scenarios?

Answer 31

One fails to raise
All fail to raise after pants up is pressed
Pantos fail to lower when train stable
Pantos fail to lower when panto down is pressed

Question 32

What other causes may we need to isolate a defective panto?

Answer 32

Train defects affecting the 1500vdc systems on the train
Over head faults
Damaged pantos