Siemens Traction Flashcards
What is the MR pressure?
850-1000kpa
What is the MR pressure when the towing cock is turned?
700kpa
What is the holding brake pressure?
110kpa
What is the B1 pressure?
57kpa
What is the B3 pressure?
109kpa
What is B6 pressure
189kpa
What is emergency brake pressure?
280kpa
At what MR pressure will the compressors start running?
<850kpa
What is the safety valve pressure for:
- compressor to air dryer
- air dryer to main reservoir
- 1100kpa
- 1050kpa
At what MR pressure will the SPB automatically apply?
<350kpa
At what MR pressure will the safety loop open?
<600kpa
What are the 2 mcbs that are different between DMA + DMB cars?
- DMA -> PA mcb
- DMB -> CCTV reader mcb
How are the saloon doors numbered?
1 - 4 in a clockwise direction starting from no. 1 end A side
Where are the primary saloon doors?
1 + 4 lead motor
Where are the secondary saloon doors?
1 + 4 on the leading centre motor
What are the 2 modes of saloon lighting?
- normal
- emergency
What is the roof mounted equipment on a motor and trailer car?
- motor car -> pantograph, antenna, surge arrestor, 2 x HVACs
- trailer car -> 2 x HVACs
Where is the whistle isolating cock located?
Panel to the left of the drivers seat
When will the trip lower on a Siemens?
As soon as cab is activated -> still need to reset after it lowers
What are the 3 steps to resetting the trip?
- train at 0km/h
- master controller to coast
- turn switch to reset
What is the towing unit used for?
Reads and writes BP during non electrical rescue
What position must the MR to towing unit isolating cock be in during train rescue procedures?
Open
What is the purpose of the towing cock?
Lowers the MR pressure from the cab it is turned at to 700kpa for when coupling to a comeng
If the towing cock is turned, what will the MR gauge in the lead car show and what will happen to the uncouple button/light?
- MR gauge -> 700kpa
- uncouple button - flashes
What type of coupler is fitted to the Siemens?
Dellner
Can a siemens couple to other train types?
Yes but not electrically
What wheels are the SPB fitted to?
Wheels 3 + 7 all cars
What are the brake resistor grids used for?
Dissipate the heat generated by using the ED brakes
What is inside the traction container?
- traction inverter
- TCU
What does the traction inverter do?
Converts 1500vDC to variable 3 phase AC for the traction motors
What is inside the high voltage container?
- left side -> BCU
- right side -> HSCB and ground switch
What are the 2 isolating cocks inside the brake module?
- top -> air suspension
- bottom -> BC
What does the compressor pressure switch do?
Monitors level of compressed air and start/stops compressor when required
What happens to the compressors if the compressor pressure switch is isolated?
They’ll run continuously
What is inside the static inverter container?
- 2 x SIVs
- battery charger
What is the purpose of the self-excite button?
Manually start the SIV system if there is not enough battery supply
What is inside the auxiliary container?
- auxiliary equipment
- BCU
How many battery cells are in the container?
80
What do the batteries supply power to if the train is stabled?
- raising pantos
- step lights
- desk light
Can a driver fit the transition coupler?
No
What are the 6 items of safety equipment on all trains?
- red and green flags
- fire extinguisher
- first aid kit
- switch stick
- ATWs
- ETCJC
What cars are first aid kits located?
Every motor car
What are the 4 positions of the master selector switch?
- reverse
- forward
- neutral
- set speed
When performing a train start up, what must you wait for before pressing the panto raise button?
The tones to stop
What colour will the marker lights be if the master selector switch is in neutral?
Red
When in forward, at what speed will traction be cut off as part of the overspeed system?
119km/h
When in forward, at what speed will the emergency brakes apply as part of the overspeed system?
125km/h
When in set speed, at what speed will the emergency brake apply as part of the overspeed system?
8km/h
When in set speed, at what speed will traction power be cut off as part of the overspeed system?
6km/h
What are the 4 operating zones of the master controller handle?
- emergency (B7)
- brake (B1 - B6)
- 0 (coast)
- drive (D1 - D7)
What is the speed threshold?
0.2km/h
For how long will a tone sound if the hand or foot pilot valve is released?
3 seconds
What 3 things are linked to the speed threshold of 0.2km/h?
- holding brake
- open saloon doors
- deadmans device beeps if >0.2km/h
What are the 2 subsystems of the VICERS system?
- VICERS control system
- event recording system
For how long will the VICERS button flash then buzz if not acknowledged?
5 seconds, then 5 seconds
What are the 2 positions of the VICERS key switch?
- operate
- isolate
What does it mean if the uncouple button is flashing red?
Low MR pressure
What does it mean if the uncouple button is steady red?
Coupled up in that cab
How many cabs can be active at any one time?
1
What doors will stay open when the auto door inhibit feature is active?
1 + 4 of that car
What indications will a driver get in the cab if a DER is activated?
- light illuminates red
- PEI will activate
- audible tone in cab
- FDCL
After pressing the stable button, how long will the pantos take to lower?
30 seconds
What position must the master controller key switch be in for the stable button to be active?
Off
What does it mean if the park brake switch is illuminated red?
Park brakes applied
How often does the MAD button beep?
Every 30 seconds
What are the 6 train lined fault lights in the lead cab?
- safety loop
- critical defect
- maintenance fault
- reduced performance
- door system
- compressor fault
How long does the electric brake inhibit button isolate the ED brakes for?
5 minutes
What else could an illuminated electric brake inhibit button indicate?
Wheel slip event causing the ED brake to stop working
What are the 3 things that would would cause the critical defect fault light to illuminate?
- major failure of the friction braking system on the train
- complete loss of auxiliary power in a unit (both SIVs failed)
- wheel slip fault affecting the operation of the sanders
What are the 5 mcbs that could cause the train to fail (FACES)?
- friction brake and monitoring
- automatic coupler control
- cab/train manned
- emergency brake valves
- safety loop
Which of the FACES mcbs would result in the train being rescued if they can’t be reset?
- safety loop
- emergency brake valves
What does a reduced performance fault light indicate?
- traction fault
- 1 or more driving motors not powering
What does a compressor fault light indicate?
Low MR pressure
Which fault light can you tell where on the train a fault is occurring?
1st and 2nd unit fault lights
What is contained in the mcb panel on the rear wall of the cab?
- mcbs
- deamans device test switch
- door loop bypass key switch
- safety loop bypass key switch
- trip cock bypass key switch
- BP mode key switch
What are the 3 bypass switches in the mcb cabinet?
- door loop
- safety loop
- trip cock
What are the 2 mcbs in the cabinet to the right of the driver?
- GPO
- trip cock device
What 8 pieces of equipment does the safety loop bypass key switch isolate?
- deadmans devices
- low MR pressure relay
- holding brake relay
- door close relay
- over speed relay
- BCU major event relay
- automatic coupler relay
- emergency stop buttons in non active cabs
If the train is running on the secondary circuit, what button now becomes a vigilance button?
MAD button
How often will the MAD button flash if running on the secondary circuit?
Every 45 seconds
How long will you have to acknowledge the MAD button before the emergency brakes will apply when running on the secondary circuit?
10 seconds
How long will the deadmans device test switch be active for once it’s turned on?
60 seconds
What are the 5 positions of the brake pipe mode key switch?
0 - normal
1 - pushed by other train
2 - pulling other train
3 - pulled by other train
4 - pushing other train
Where is the saloon area mcb panel located?
Right of door 2 in trailer cars
Where is the fault panel located in trailer cars?
Right of door 2
How many fault lights are there on the trailer car fault panel and what are they?
10 fault lights:
- brakes bogie 1 + 2
- HVAC 1 + 2
- static inverter 1 + 2
- brakes cut out bogie 1 + 2
- park brake bogie 1 + 2
After how long will a PEI call time out if not answered?
150 seconds
What indications will a driver get if a PEI is activated?
- audible tone
- flashing red emergency intercom button
How do you enter a TDN on the new HMI screen?
- select TDN/timetable
- manually enter TDN
- select applicable day of the week
- select ‘enter’
- click on yellow ‘station information’ box to confirm
What is the purpose of the HSCB?
Disconnects traction equipment from overhead line if there’s an over current or short circuit
What are the 5 things that run off 400vAC (BATHG)?
- battery charger
- air compressor
- TCU
- HVACs
- GPO
What will happen if 1 SIV fails on a 3 car unit?
Both air con will run at 50% each
What power do the battery chargers produce?
110vDC
What are the 2 ways that pantos can be lowered remotely?
- stable button
- panto button
Where is the manual panto crank handle located?
Right of door 2
What type of doors are the saloon doors?
Plug type bi-parting
After how long will the doors attempt to close again if they couldn’t close the first time?
3 seconds
How many times will the doors attempt to close if they are obstructed?
3 times
After how long will the saloon doors automatically close?
60 seconds
To which doors are the internal DERs fitted?
Left of every door
What voltage does the safety loop operate on?
110vDC
What 8 things would cause the emergency brake to apply?
- dellner or semi permanent couple fails resulting in train dividing
- electrical coupler fails between two 3 car units
- overspeed is exceeded
- critical fault occurs in a BCU
- MR <600kpa
- trip activated
- VICERS activated
- short circuit develops in safety loop
What are the 4 ways the emergency brake can be manually applied by the driver?
- operation of ESB in any cab
- master controller in emergency
- operation of controls causing deadman to become active
- master key switch placed to off
How do you reset the emergency brake?
Master controller to 0 once stationary
What are the 2 things that are task linked to the VICERS system?
- master controller
- whistle
How do you reset VICERS after it has activated?
- train at a stand - speed at 0km/h
- master controller to 0/coast
- wait 10 seconds
- press VICERS acknowledge button
What are the 3 times when VICERS can be isolated?
- fault indicator remains illuminated
- VICERS fault that can’t be reset and causes train to not be able to be moved
- if FMP instructs driver to isolate it
What 6 pieces of equipment is compressed air supplied to?
- main reservoirs
- auxiliary reservoirs
- air suspension reservoirs
- whistle
- service (friction) brake
- park brake
What 2 things make up the air supply unit?
- air compressor
- air dryer
What power supply do the air compressors operate on?
400vAC
What will happen to the compressors if the compressor pressure switch is isolated?
Run continuously
What is the purpose of the air dryers?
Remove moisture, debris and oil from the compressed air
What 3 things is the air suspension system made up of?
- levelling valves
- air bags
- surge reservoirs
Where are the levelling valves located on motor and trailer cars?
- motor -> 1 at both ends
- trailer -> 2 at no. 1 end and 1 at no. 2 end
What is the purpose of the surge reservoirs?
Supply air directly to the air bags to compensate for;
- train tilting around a curve
- uneven passenger loads
- sudden imbalances in the air suspension system
What 4 things is the brake control system comprised of?
- service brake
- holding brake
- emergency brake
- park brake
At what speed does the ED brake start to fade out and the EP brake takes over?
10 km/h
What is the only type of braking used on trailer cars?
EP/friction braking
Is the wheel slip system active during an emergency brake application?
Yes
What will happen if the park brakes are applied when train speed is >5km/h?
Safety loop de-energises and emergency brakes apply
What will happen if the braking effort falls below 90% of the request when running on the ED brake?
Will default to EP braking mode
What is the minimum speed the train must be doing for the sanders to be active?
5km/h
Are the cab doors part of the door loop system?
Yes
What must a driver do if a FDCL is observed while motion?
- slow down
- check mirrors to see if anyone is hanging out
- PA announcement
- stop at next platform regardless of timetable
How long will the door chimes sound for if a door fails to close?
30 seconds
What is the purpose of the door loop bypass switch?
Allow the driver to gain traction power if a FDCL can’t be rectified
What are the 5 functionality tests completed during a train prep?
- brakes
- traction cut out
- vigilance device (deadmans)
- VICERS
- trip
Which functionality test isn’t done on a pre-movement/revenue prep?
VICERS
When doing a pre-movement/revenue prep, what are the only 3 things that need to be checked prior to starting the functionality tests?
- check fault panel
- lamps test
- whistle test
When stabling a siemens, does the master key need to be inserted?
No
What is the variance allowed in all pressures?
+/- 30kpa
What is the B2 pressure?
83kpa
What is the B4 pressure?
136kpa
What is the B5 pressure?
162kpa
What 5 things on the safety loop are NOT bypassed when turning the safety loop bypass?
- safety loop mcb
- emergency brake valve mcb
- ESB in active cab
- master controller in emergency
- master key switch
