Siemens Faults Flashcards
Stabling during fault rectification, what three things will you lose?
(3 answers)
• Marker lights and saloon lights are extinguished, including emergency lighting
• PA
• Saloon Doors lock
How long should the train remain stabled for?
2 Minutes
Which fault lights will allow the driver to know where the fault is located?
• Unit 1
• Unit 2
True or False
The general fault light will illuminate if there is a fault in the sub system if the train requires maintenance?
True
Three possible causes of a critical defect lights?
• Critical fault in the pneumatic friction brake system
• Complete loss of aux power in a unit where both SIVs are defective
• Defective wheel slip unit affecting sander operation
If a critical defect occurs, how should the driver operate the train? (3 answers)
• Operate at Low speed
• Detrain passengers at first available station
• Shunt to nearest siding
After a critical defect occurs and it is not possible to move the train, what would a driver need to inspect? (2 answers)
• Friction Brake and Monitoring MCB in all cars of affected unit
• Static inverter monitoring MCB in trailer car
What does the reduced performance fault light indicate?
One or more motor cars are failing to deliver traction power
If a reduced performance fault light illuminates in the lead cab, how can the driver identify it is in the lead car
The car with the defect within be identified with Traction system fault light illuminated
What is the minimum traction effort required?
50%
How can a driver attempt to rectify a wheel slide event when powering?
Move master controller handle to “0” for 2 seconds
Reduced performance will extinguish then resume powering
True or False
Illuminated maintenance fault light, will affect the safe operation of a train?
False
What will be the effect if an attempt is made to activate a second cab?
• Another active cab illuminates in both cabs
• Buzzer sounds in cab where attempt is being made to activate
If there is another cab active fault that cannot be rectified, what can the driver do?
Trip cab/train manned MCB in the affected motor
Report defect to TC
If the DTRS is inoperative in the active cab, how can the driver attempt to reset the DTRS?
• Deactivate cab
• Trip and reset the DTRS MCB
• Activate the cab
• Re-enter a TDN into the head unit of the DTRS.
• Conduct a Radio test
• Submit a TMM to the Train Controller at Metrol indicating Rectified in Running if satisfactory.
If both PA and DTRS PA are inoperative can the train remain in service?
No
If there is a failure of the CCTV PIDS or PA, which MCB can be tripped and reset?
DC-DC inverter PA, PI display MCB
During train start up, if none of the pantos raise what would be the problem?
Circuit or lack of battery power
What indication would the driver get in the cab if one panto fails to raise?
The Panto raise button will remain illuminated
During train start up, if none of the pantos raise, what MCB needs to be reset?
Panto control MCB
If the EP brake fails to release during powering or coasting, which light will illuminate on the fault panel?
Brake on
True or False
A driver can identify that a park brake has failed to release if the PB turret is illuminated regardless of position?
True
During a stable, if all pantos fail to lower, which MCB would the driver inspect?
(3 answers)
• Train Stable, HSCB & Light control MCB (local driving cab)
• Shutdown delay MCB (T car)
• TCU MCB
True or False
If all panto fail to lower during a stable, the TCU MCB would be tripped prior to attempting again?
True
If one panto fails to lower when the panto down button is pressed, what actions would the driver take?
Inspect Panto Motor MCB in the affected motor
• If it is tripped, reset
• If it is already set, trip, and reset,
• Push the Panto lower button
How is panto isolated?
• Master Key Switch is OFF position
• Press Train Stable button.
• Trip Panto Motor MCB on the affected motor
• If required, lower the defective pantograph by the use of the crank hand clockwise direction.
• Insert the Master Key into the Master Key Switch and turn ON.
• Press the Pantograph Up button.
Ensure the defective Pantograph has remained lowered.
• Complete a TMM and advise the Train Controller at Metrol.
If both SIV’s fail on 3 car unit, what equipment will be lost?
(4 answers)
• Battery Charger
• Air con
• Air compressor
• Half drivers cab light
(Emergency lights available)
The SIV’s will not be started if the battery charger has not risen above what voltage?
82 V
What steps need to be followed to manually start the SIV’s?
- Press the Train Stable button
- Trip the Panto Motor MCB
- Raise the local panto manually using the crank handle.
- Exit the driving cab and proceed to the A side of the trailer car.
- Insert the Triangle key into the central lock (small rectangular box) on the SIV.
- Turn the key and remove cover.
- Press the white button (excite button).
- Replace cover and lock box.
- Return to the driving cab and activate the cab.
- Reset Panto Motor MCBs
- Push the Pantograph Up button
True or false
The DCU isolates a door due to a defect, the door system isolate will illuminate?
True
How is the SPB manually released?
Locate affected boggie
Unlock BCU with tri key
Isolate bogie
Unlock PB
Pull manual release
After manually releasing a park brake, it will stay released until you do what?
Yes
or
manually applied by turning the PB switch
Or
Taking your key out
A driver should check the dampeners for dripping oil, loose parts etc?
Yes,
TMM to TC
When MR pressure falls below 850kpa, what light will illuminate?
The uncouple light
What is the effect of isolating the compressor pressure switch?
Compressor will run continuously
If the loss of MR is caused by a ruptured air bag pressure above 600kpa, what must a driver do?
Continue to operate the train as per normal and monitor MR
If the loss of MR is caused by a ruptured air bag pressure below 600kpa, what must a driver do?
Iso air suspension
Both airbags must be iso on the affected car
What is the max speed of a Siemens with deflated air bags?
80km
At what MR pressure will the safety loop open?
600kpa
If the MR gauge is showing 700 kpa, the driver should check what cock
Towing cock
If MR rupture occurs on a center motor, what steps should be taken
Get RTA
Full cab
ID leak
Close MR cocks at both ends
Manually release PB
Turn safety loop bypass key switch
Drive in accordance with equipment iso
Detrain pax
If there is a MR rupture on any other car, the train must be declared disabled? (1,2,5,6)
Yes
If MR pressure has fallen below 600 and the compressor has stopped, what are the drivers’ actions?
Contact TC
Stable train
If did not work:
Get RTA
Iso compressor pressure switch
If did not work
Train disabled
In what situations will a driver need to isolate sanding equipment?
Major damage has occurred
Or
Major air leak resulting in low MR
If the whistle is sounding continuously, what can the driver do to rectify the fault?
Depress and release several times
Trip and reset DC/DC inverter front light / wiper MCB
If the whistle is not sounding, what are the driver’s actions?
Depress and release several times
Inspect whistle iso cocks
When would the trip cock lifting device be used and where is it located
When the trip needs to be secured in the raised position. The right hand side of the drivers cabin behind the fire extinguisher
When activating brake pipe mode during non-electrical rescue, in which cabs is the brake pipe mode switch be operated?
Only be activated in the coupled cab end
When brake pipe mode has been activated, what light will flash?
Red indicator light labelled Brake Pipe Mode
Front and side of the fault panel
For the TU1 to operate during rescue, what position must it be in?
Open ( normal position)
What is the purpose of the towing cock?
Train rescue for comeng it’s required. It lowers the MR to the coupler to 700kpq
When a Siemens is being rescued, what CB needs to be tripped in each Motor car?
Traction control unit MCB
What position of the master selector switch should the disabled train be in during rescue?
Set speed
What brakes must be used on a Comeng train during non-electrical rescue?
Air brakes
How is a saloon door stuck in the open position close and isolated?
• Trip the circuit breaker for that door
• Pull in closed
• Isolate it with the Tri-Key
• Put circuit breaker back in
• Door not in use sticker making sure the door not in use light illuminates and book
If the leading or trailing motor does not have a operating brake can the train be driven
No, declared disabled
If FDCL cannot be rectified, how can driver gain traction power?
Door loop bypass
Name the 5 position on the brake pipe mode selector switch
0 - off
1- pushed by other train
2 - pulling other train
3- pulled by other train
4- pushing other train
What does a driver need to do to reset the trip after it has activated?
• Set master controller handle to 0
• Hold Trip Reset turret switch in 2 o’clock position and release
What is the normal operation range for a Siemens
850kpa to 1000kpa
If the MR leak is in the trailing trailer or trailing motor can the train move
No
Declare the train disabled
The safety loop has de-energised , what conditions or equipment needs to be inspected? (11 answers)
• Cab activated?
• Overspeed indicator illuminated?
• Deadman’s Device operated correctly ?
• Trip Activated?
• VICERS activated/fault?
• Main res below 600kpa?
• ESB
• Was train just divided?
• Fault in trip loop?
• Isolate VICERS
• Stable train
Can the train have an un-braked car on the open end of any consist
No
True or False
If the safety loop fault cannot be rectified, the driver can switch the safety loop bypass and introduce the secondary circuit in order to move the train?
True
If this does not work train disabled
What do you do when you have a compressor fault light
Monitor MR
TMM to TC
Which of the bypass keys will introduce the secondary circuit? (2 answers)
• Trip cock bypass
• Safety loop bypass
What makes a tone when you are operating on the secondary circuit?
The MAD Button
Tone will sound after 45s
Push within 10s
If the bypass key switch has been operated to bypass which light will illuminate on fault panel?
Safety system isolation
Where should you stable the train and for what reason
At stations
Under Home signal protection
Level crossing devices are not activated
Due to losing all marker lights and creating a potentially dangerous situation
How would you turn the HVACs off in the event of a fire?
Turn the rotary switch to off, it will illuminate RED
If the master control fails to brake, how can the driver attempt to stop the train?
- Set the Master Controller handle to EMERGENCY.
- If this fails, press the Emergency Stop Button.
- If this fails, place the Park Brake Switch to the ON position.
- If this fails, turn the master key to the OFF position.
True or false
A loss of ED brake performance is made up by the EP brake?
True
Where is the fault panel in the trailer car and name the 5 fault light on the panel
TC car door 2 RHS
Brakes Bogie 1 & 2
HVAC 1&2
Static Inverter 1&2
Brakes cut out Bogie 1&2
Park brake bogie 1&2
When will the general fault light start to flash again after being acknowledged?
When a new fault has occurred
What 9 things will cause a maintenance fault?
Single SIV on one or both units
Door defective and been iso
Brake not released on a unit
HVAC defective
PA system defective
CCTV defective
Compressor fault
Traction system is defective or requires maintenance
Pneumatic or electrical fault with sanders
