Siemens Faults - Electrics

Question 1

What happens to the train when it is stabled?

Answer 1

All marker and saloon lights are extinguished
PA is inoperative
Saloon doors lock

Question 2

What three kinds of faults can be rectified via train stable?

Answer 2

Totally disabled
Critical faults
Serious or maintenance faults

Question 3

What three locations are train stable procedures deemed appropriate?

Answer 3

Platforms
Under protection of home signals
Where level crossing protection devices won’t remain active

Question 4

Before stabling a train for fault rectification, what must a driver do?

Answer 4

PA advising of the lights going out and doors locked for a short period of time 
Close doors
Remove key
Stable
Confirm pantos have lowered 
Wait 2 minutes
Reactivate
Raise pantos

Question 5

What must be done when a general fault light starts flashing and why?

Answer 5

Fault acknowledge to ensure the flashing stops and a driver can see if another fault arises

Question 6

What 3 faults can a critical fault light indicate?

Answer 6

2 SIVS failed
Defective sanding equipment
Fault in pneumatic friction brake

Question 7

If a train can be moved with a critical fault, what is the procedure?

Answer 7

Operate at low speed
De train at station
Shunt to nearest siding

Question 8

If a critical fault occurs and driver cannot move the train, what circuit breakers need to be inspected?

Answer 8

Friction braking and monitoring in affected cars

Static inverter monitoring in trailer car

Question 9

Can a train be safely operated with a maintenance fault?

Answer 9

Yes

Question 10

What does the reduced performance fault light mean?

Answer 10

One or more motor cars are failing to power

Wheel slip is occurring

Question 11

What other fault light will appear with a reduced performance fault light to indicate that car has failed traction equipment?

Answer 11

Traction system fault light

Question 12

Can a driver reset a traction lock once the TCU attempts to reset the system?

Answer 12

No the reset is done by itself but a driver can move the handle to coast to clear the fault

Question 13

What percentage of tractive effort is needed to remain in service?

Answer 13

50%

Question 14

How does a driver reset slip and slide device?

Answer 14

Coast for 2 seconds

Question 15

If the driver suspects another key is being inserted to another cab, what is their duties?

Answer 15

Check for cleaners key
Try a cab to cab call
Inspect each cab for cleaners keys or another key

Question 16

If the active cab is located but no key or cleaners key is found, what could be the remedy?

Answer 16

Cab/train manned CB

Question 17

What circuit breakers are reset to rectify a cctv fault?

Answer 17

Cctv central control

DC-DC inverter pa, Pi display

Question 18

How do you reset a DTRS?

Answer 18

Deactivate cab
Trip and reset DTRS cb
Activate
Re enter is tdn in unit of DTRS
Conduct radio test

Question 19

True or false, if no PA system is operational, the train must be taken out of service?

Answer 19

True

Question 20

How long must a train be stabled for fault rectification for a PA system?

Answer 20

2 minutes

Question 21

If pantos fail to raise, what cb need to be checked and in what cars?

Answer 21

Check pantograph control cb in local driving cab

Check pantograph motor in affected driving cab

Question 22

If pantos fail to raise and cb is set, what must a driver do?

Answer 22

Trip and Reset panto control cb and press pantos up
If this fails either raise from another cab or trip panto motor and manually raise the lead
Press pantos up and ensure they drop with the pantos down command before entering service

Question 23

If all pantos fail to raise due to low battery or faulty circuit, what must be done?

Answer 23

Check if they raise from elsewhere
If not stable the train from lead  for one minute 
Trip panto motor cb
Raise the lead panto manually
Press panto up button
Reset panto motor cb

Question 24

What CB needs to be checked when pantos fail to lower when train stabled is pressed?

Answer 24

Train stable, HSCB and light control
Shutdown delay in T car
TCU

Question 25

How do you isolate individual pantos?

Answer 25

``` Key off Train stabled Trip panto motor and panto control cb in affected motor Lower defective panto vis crank handle if required Set panto control cb Key to on Press panto up Ensure it stays down ```

Question 26

If both SIVS fail, what equipment is affected?

Answer 26

``` Air con Only emergency lighting Battery charger won’t charge batteries Half drivers cab fluro lighting Air compressor fails ```

Question 27

At what battery voltage will the SIVS fail to start?

Answer 27

82v

Question 28

How do we start the SIVS manually?

Answer 28

``` Key off Train stabled Trip panto motor cb Raise panto manually Go to SIVS on A side of train Unlock and press excite button Return to cab and activate cab Push pantograph raise Reset panto motor cb ```

Question 29

If a door remains open, what is the procedure?

Answer 29

``` Open panel to left of door and press the button labelled button If that fails trip cb Close doors manually Manually isolate via triangle keyswitch Reset cb ```

Question 30

If a trip has failed, what may need to be isolated?

Answer 30

Trip cock bypass

Question 31

When running on secondary safety circuit, what button is pressed at regular intervals?

Answer 31

MAD button

Question 32

If a fire happens in the train, what must be turned off?

Answer 32

HVAC

Question 33

Name the circuit breakers that de energise the safety loop?

Answer 33

``` Safety Loop Auto coupler Friction brake and monitoring Emergency brake valves Cab manned Door controller train lined ```

Question 34

How often will the MAD button make an audible tone on the secondary safety circuit?

Answer 34

45 seconds | Brakes apply 10 seconds later

Question 35

What are the steps when stationary to rectify safety loop faults?

Answer 35

``` Master Controller Key switch Main res below 600 (if above 600 go to step 6) Emergency stop indicator illuminated VICERS fault light or activation Over speed indicator illuminated Trip Bypass Safety Loop Bypass Fault cannot be resolved (stable, reset, disabled if it doesn’t work) ```

Question 36

What are the steps for a faulty safety loop in running?

Answer 36

``` Master Controller Key switch Main res below 600 (if above 600 go to step 6) Dead mans devices Trip activation VICERS fault light or activation Over speed indicator illuminated Trip Bypass Safety Loop Bypass Fault cannot be resolved (stable, reset, disabled if it doesn’t work) ```

Question 37

How long does the PID circuit breaker need to be reset for?

Answer 37

30 seconds

Question 38

If the overspeed light is illuminated, how would a driver remedy this?

Answer 38

Master controller in coast for 3 seconds

Question 39

What is the drivers responsibility if a DER is pulled?

Answer 39

``` Check the CCTV via PEI call Log a TEC call advising of delay Perform FCU Locate affected door Return DER to closed Door may need to be manually closed Submit TMM ```

Question 40

If low power is detected in the overhead, what circuit breaker will be needed to be tripped?

Answer 40

TCU

Question 41

Name the 6 fault lights?

Answer 41

Safety loop, critical defect, maintenance, door, compressor, reduced performance

Question 42

What does the compressor fault light indicate to a driver?

Answer 42

Main res is below 850kpa

Question 43

If a door isolated itself, what indication will a driver get?

Answer 43

Door systems fault light

Question 44

Name the 3 pantograph faults?

Answer 44

All Pantos fail to raise One panto fails to raise Pantos fail to lower with pantos down command Pantos fail to lower with train stable command Worn carbon strip

Question 45

Does a compressor fault monitor the mechanical operation of a compressor?

Answer 45

No

Question 46

What 3 methods rectify faults on a Siemens?

Answer 46

Isolating cocks Circuit breakers Train stable

Question 47

What two cb is checked for failed headlights?

Answer 47

Front lights | External lights

Question 48

If brake handle in emergency fails, what are the 4 steps to stop the train?

Answer 48

Emergency application Emergency stop button Park brake Key out