Siemens Faults Flashcards
(117 cards)
1
Q
What 3 things will happen when a Siemens is stabled?
A
- all marker and saloon lights extinguish (including emergency)
- PA system inoperative
- saloon doors remain locked
2
Q
What 3 conditions must be met when stabling on a mainline?
A
- at a station platform
- protected by home signals
- not activating level crossing equipment
3
Q
For how long must you stable when doing fault rectification?
A
2 mins
4
Q
What does a general fault indicator light indicate?
A
- fault developed in the sub-system on the train
- maintenance requirements
5
Q
What happens to the general fault light when pressing the fault acknowledge button?
A
- goes steady and remains illuminated
6
Q
How do you identify where the fault is on the train?
A
1st and 2nd unit fault indicator lights
7
Q
If the 1st and 2nd unit fault indicator lights aren’t illuminated/are conflicting, what could this indicate?
A
Fault within the coupler
8
Q
What 3 instances would you get a critical fault indicator light?
A
- critical fault in pneumatic friction brake system
- complete loss of auxiliary power supply in a unit (both SIVs defective on one unit)
- defective wheel slip unit affecting operation of the sanders
9
Q
If the critical fault light illuminates, what shouls you do?
A
- operate train at low speed
- detrain passengers at first available station
- shunt to nearest siding
10
Q
If you can’t move the train with the critical fault light, what 2 mcbs would you check?
A
- friction brake and monitoring
- static inverter monitoring
11
Q
If the mcbs can’t be reset, what must be done?
A
Train declared disabled
12
Q
Is the safe operation of the train affected when there is a maintenance fault light?
A
No
13
Q
If there is low power identified in the overhead system, what will the TC instruct the driver to do?
A
Tripe at least 1 TCU to reduce load on overhead system
14
Q
What does the reduced performance indicator light tell you?
A
1 or more motor cars are failing to deliver traction power
15
Q
What other fault light will come on in the affected car?
A
Traction system fault light
16
Q
Can the Siemens automatically isolate a traction fault?
A
Yes
17
Q
Can a driver reset a traction fault?
A
No, but can move master controller to ‘0’ briefly in an attempt to clear the fault
18
Q
What will happen if 1 or more TCUs aren’t functioning?
A
- reduced performance fault light
- traction system fault light
- acceleration of train will be reduced
19
Q
What light may illuminate during wheel slip/slide events?
A
Reduced performance light
20
Q
How could you rectify this?
A
- master controller to ‘0’ for at least 2 seconds
- progressively resume powering
21
Q
What will happen if someone attempts to activate another cab?
A
- another active cab indicator illuminates in both cabs
- buzzer sounds in cab where attempt to activate is being made
22
Q
What must a driver do if there is another cab active?
A
- inspect cleaner’s key switch
- cab to cab to locate another driver on the train
- inspect each cab for being active and cleaner’s key switches
- activate cab then deactivate the cab
- active cab can be identified by DDU being active
23
Q
If the affected cab can’t be deactivated, what must you do?
A
- trip cab/train manned mcb in affected motor
- train won’t be able to be driven from this cab
24
Q
What mcbs must be checked when:
- CCTV screen fails
- PID fails
A
- CCTV:
• central control mcb
• DC-DC inverter PA, PI display mcb - PID:
• DC-DC Inverter PA, PI display mcb
• passenger information display mcb
25
What is the reset procedure when there is a DTRS fault?
- deactivate cab
- trip and reset DTRS mcb
- activate cab
- re-enter TDN into head unit of DTRS
- conduct radio test
- TMM to TC
26
What is the isolation procedure if the DTRS can't be reset?
- deactivate cab
- trip DTRS mcb
- reactivate cab
- place portable radio into cradle -> now unpowered
27
How many PA systems are on the Siemens?
2 -> stand-alone and back up through DTRS
28
What must happen if both PAs fail?
Train taken out of service
29
How do you rectify a PA fault on a dock?
- check PA fault indicator is illuminated
- check PA system mcb and DC-DC Inverter PA, PI display mcb
- if tripped -> attempt to reset
- if set -> check if PA on DTRS is operational
- if neither PAs are working -> stable for 2 mins and retest the PA system
30
How do you rectify a PA fault whilst in running?
- check if PA on DTRS is operational
- if both inoperative -> check all mcbs in leading cab
- if all mcbs set:
-> trip DC-DC Inverter PA, PI display mcb for 2 mins
-> reset mcb and check if PA is
operational
- if still inoperative -> remove train from service if both still inoperative
- if time permits -> TC may ask driver to trip and reset mcb in all cabs
31
What are the 4 types of pantograph faults?
- one panto fails to raise
- all pantos fail to raise after pressing panto up button
- all pantos fail to lower after pressing train stable button
- all pantos fail to lower after pressing panto down button
32
What are a driver's actions when one panto fails to raise?
- inspect panto control mcb in local cab
- inspect panto motor mcb in affected driving cab
- if mcbs tripped -> reset and press panto raise button again
- if mcbs are set -> raise from another cab or raise manually
- TMM to TC
- if pantos manually raised -> ensure can still be lowered from leading cab
33
What are a driver's actions when pantos fail to lower after pressing stable button?
- line voltage indicator lamp on and panto raise button not illuminated
- inspect and reset if tripped/trip and reset if set:
• train stable, HSCB and light control mcb in local cab
• shut down delay mcb in trailer car
- trip TCU mcb -> train may not know it's stationary:
• if tripped, reset and try to stable again
• if set and pantos still fail to lower -> leave pantos raised
- TMM to TC
34
What are a driver's actions if all pantos fail to raise?
- inspect panto control mcb in affected motor:
• if tripped, reset
• if set, trip and reset
• push panto up button
- if still not raising:
• check if pantos will raise from another motor
• still not raising, stable train
• wait 1 minute then trip panto motor mcb
• raise lead panto manually -> turn crank handle clockwise until pressurr felt
• observe panto raised
• press panto up button
• reset panto motor mcb
• TMM to TC, may have to start SIVs manually
35
What are a driver's actions if pantos fail to lower after pressing panto down button?
- line voltage and panto up button may both be illuminated
- inspect panto motor mcb in affected car:
• if tripped, reset
• if set and pantos still fail to lowr -> leave pantos raised
• TMM to TC
- if half pantos fail to lower:
• inspect panto motor mcb in affected car
• if tripped, reset
• if set, trip and reset
• push panto down button -> can't enter service if this happens in a prep
36
What is the procedure for isolating pantographs?
- master key switch off -> train stable
- trip panto motor mcb on affected motor
- if required -> manually lower panto with crank handle anti-clockwise
- master key switch in and on
- press panto up button
- ensure defective panto remains lowered
- TMM to TC
37
What equipment will be lost when both SIVs fail?
- no air con
- emergency lighting only
- no battery charger
- 1/2 drivers cab fluoro lighting
- air compressor won't operate
38
What is the minimum voltage required for the SIV to be started up by the batteries?
82V
39
What is the manual start procedure for the SIVs?
- press train stable button
- trip panto motor mcb
- raise local panto manually with crank handle
- remove cover on self-excite button and press the white button
- replace cover and return to cab
- press panto up button
- reset panto motor mcb
40
Can the DCU isolate the door if a defect is detected?
Yes
41
Would the driver still have to manually isolate the door if it doesn't reset?
They may have to
42
How would you locate which door is defective/isolated?
- 1st or 2nd unti fault lights
- corresponding door out of order light illuminated
43
What indication would a driver get when:
- cab door is opened in a non-active cab
- saloon dor fails to close
- cab door -> extinguished door close light
- saloon door -> FDCL
44
How many times can a door related mcb be reset?
2 times
45
If the fault isn't rectified after resetting the mcbs, what would be the next steps?
- attempt to close saloon doors from another active cab
- door loop bypass
46
What door related mcbs are in the DM car?
- door control train lines
- closed and locked loop
- door control power supply 1-4
47
What door related mcbs are in the T car?
- door control T car
- door control power supply 1-4
48
How do you isolate a defective saloon door?
- close door -> electrically (button button) or manually
• to manually close, trip applicable door control power supply mcb
- insert tri key into mechanical door isolation port
- turn key 90° clockwise to isolate then remove key
- press saloon door open button to confirm it doesn't open
- apply door not in use stickers
- door out of order light has illuminated
49
What indication will a driver get when a DER has been activated?
- DER status light activated
- PEI light illuminates/activates
- light illuminates red
- audible tone in cab
50
If a FDCL can't be rectified, what must a driver do?
- isolate door loop bypass
- detrain passengers
- extreme caution through platform if door can't be closed
51
What will happen if there is a safety loop defect?
- safety loop indicator light illuminates
- emergency brakes apply
52
Which bypass switch is used when the safety loop is defective?
Safety loop bypass key switch
53
Which light will illuminate once the bypass switch has been operated?
Safety system isolation status light
54
What 10 things will you check if the safety loop is opened?
- is the cab activated
- is the overspeed indicator illuminated
- is the deadmans device operated correctly
- is the trip activated
- has VICERS activated/have a fault
- is MR pressure <600kpa
- is the emergency stop indicator illuminated
- was the train just divided
- is there a fault in the trip loop
- if the fault can't be rectified -> isolate VICERS
55
What will you do if the safety loop light still remains illuminated?
Stable the train
56
What will you do if the safety loop indicator:
- extinguishes
- remains illuminated
- extinguishes:
• book as per FMP and operate train as required
• operate safety loop bypass key switch
• book as per FMP and drive on secondary circuit
- illuminated -> declare train disabled
57
How do you reset the trip?
- master controller to '0'
- trip reset turret switch to reset then release
58
When would you operate the trip cock bypass switch?
- trip fails to reset after activation
- fails due to mechanical defect
59
Which other bypass switch may need to be operated when using the trip cock bypass?
Safety loop bypass
60
What are your actions if trip fails to reset?
- master key into trip cock bypass key switch
- turn to 1 position and remove key
- book as per FMP
- run on secondary circuit
61
What are your actions if trip fails due to mechanical defect?
- master key into trip cock bypass key switch
- turn to 1 position and remove key
- isolate trip mcb
- book as per FMP
- run on secondary circuit
62
What are your actions if trip cable is defective in lead/trailing cab?
- lead -> book as per FMP
- trailing:
• attempt to raise manually and secure trip with cable ties
• book as per FMP
63
What bypass switches will introduce the secondary circuit?
- safety loop
- trip
64
What button will become active once the secondary circuit is introduced?
MAD
65
Do you still need to isolate VICERS when turning these bypass switches?
No, automatically does it when turning the bypass switches
66
What 4 steps must you do if the master controller handles fails?
- master controller handle to emergency
- if this fails -> press ESB
- if this fails -> park brake switch to on
- if this fails -> turn master key to off position
67
What mcbs do you check when there are headlight defects?
- external lights control mcb
- DC-DC inverter, front light, wiper mcb
- external light supply mcb
68
What are the 4 steps when there is a fire on board the train?
1 - turn off HVACs -> switch to off, will illuminate red
2 - evacuate passengers by releasing saloon doors while at a station
3 - use DER if doors don't operate normally
4 - use fire extinguisher if safe to do so
69
What indications will you get when you have skidding wheels?
- wheel slip indication light permanently illuminated
- retardation of the train
- smoke issuing from the wheels
- squealing noise from wheel/axle
70
How do you confirm skidding wheels/locked axles?
- mark suspected wheel by drawing a vertical line on the face with chalk
- ensure SPB has released
- move train forward and check for wheel rotation -> C.E. present to inspect movement
71
What is the speed restriction when clearing the section with a locked axle?
5km/h
72
What will happen if there is a loss of ED brake performance?
EP brake will automatically intervene
73
What fault lights will illuminate when there is a loss of ED braking?
- yellow brake inhibit button/light
- brakes on train status light
74
What indication will a driver get when the EP brake has failed to release on a bogie?
Brakes on indicator illuminates and doesn't extinguish when powering or coasting
75
How do you locate and isolate the affected bogie?
- observe fault panels in each car of the affected unit -> 1st or 2nd unit
- turn bogie isolating cock to isolate (bottom cock in the brake module)
- operate train in accordance with isolated bogies
76
What 3 indications would you get if a SPB has failed to release?
- park brake light on the switch remauns illuminated
- retardation of trains momentum
- smoke coming from affected wheels
77
What 3 things would you do if you get the above indications?
- attempt to release park brakes via rotary switch several times
- observe cab/train manned mcb is set
- attempt to power train against park brakes
78
How do you manually release a SPB?
- isolate bogie cock om affected bogie
- unlock and remove locking pin from SPB manual release device
- pull manual release device outwards away from bogie -> will get a release of tension once released
- replace manual release device and locking pin and lock device
- reinstate bogie isolating cock
- TMM to TC
79
What indications will you get if you have low MR pressure?
Uncouple light flashes red
80
What are a drivers actions if MR pressure is >600kpa?
- monitor MR pressure
- TMM to TC and operate train as normal
81
What are a drivers actions if MR pressure is <600kpa?
- isolate both air suspension on the affected car (if that is causing the leak)
- max 80km/h
- try and locate cause of MR leak, check if compressors are running
82
How do you isolate defective air suspension?
Close air suspension isolating cocks -> top cock in brake module
83
If you isolate the air suspension for one bogie, do you have to isolate the other one as well?
Yes
84
What is the speed restriction when an air bag is deflated/isolated?
80km/h
85
What will happen if a spring is found to be defective?
Train must be removed from revenue service
86
How do you identify if there is a defective damper?
- during train prep -> look for dripping oil and loose connections between damper and bogie/body
87
What indications will you get if you have a MR leak?
- low MR in gauge
- uncouple button flashing
88
What what MR pressure will the safety loop open?
600kpa
89
What could be the cause if the MR pressure is at 700kpa?
Towing cock in rescued position
90
If there is an MR leak, on which cars would the train be able to remain in service?
Lead and trailing centre motors -> cars 3 + 4
91
What equipment needs to be isolated when there is an MR leak on the centre motors?
- MR end cocks on both ends of car
- SPB manually released
- safety loop bypass switch activated
92
What must you do if there is an MR leak on cars 1, 2, 5 or 6?
- attempt to blank the leaking pipe/equipment
- unable to blank:
• isolate MR end cocks at both ends of car
• declare train disabled, DRA
- isolate both bogies and manually release SPB on the car once attached to assisting train
93
What do you do if the compressor fault light illuminates?
- monitor MR pressure on duplex gauge
- TMM to TC
94
What must you do if MR pressure falls below 600kpa with the compressor fault light illuminated?
- inform TC and request permission to stable for fault rectification
- restart train and observe the fault panel
95
If the fault light remains illuminated, what do you do next?
- proceed to trailer car and locate air compressor
- turn pressure switch handle to isolate
96
If the compressor still fails to start, what must be done?
Declare train disabled -> DRA
97
What will happen when the compressor pressure switch is isolated?
Compressors will run continuously
98
What 2 instances would the sanding isolating cocks need to be isolated?
- major damage has occurred to the sanding equipment from striking debirs on the rail
- major air leak resulting in MR pressure and affecting the safe operation of the train
99
What do you do if the whistle is sounding continuously?
- depress and release whistle lever several times
- trip and reset DC/DC inverter front light/wiper mcb on affected car
- if not rectified -> leave isolated via whistle isolating cock
100
What do you do if the whistle isn't sounding?
- depress and release whistle lever several times
- inspect whistle isolating cock -> if isolated, open and test whistle again
- inspect windscreen wiper/horn mcb -> trip and reset
- inspect DC/DC inverter front lights/wiper mcb -> trip and reset
- TMM to TC
101
What 6 pieces of equipment are fitted for use during train rescue?
- Dellner coupler
- trip cock lifting device mcb
- brake pipe mode key switch
- brake pipe mode selector switch
- towing unit (TU1)
- towing cock
102
Where is the trip cock lifting device mcb located?
Panel to the right of the drivers console behind the fire extinguisher
103
How do you isolate the trip in the raised position?
- master key switch in off
- trip the trip cock mcb
- activate cab
104
From which cabs do you activate the brake pipe mode key switch?
Coupled cab end for rescue and rescuing purpose
105
What are the 5 positions of 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
106
In which cabs will the brake pipe mode indicator lights flash when active?
Will flash in each cab once active (when one key switch is activated)
107
What is the purpose of the TU1?
- reads and writes from the BP during a non-electrical rescue
- reads electrical signal and converts it to a reduction in pneumatic pressure
108
What position must the TU1 be in during train rescue?
Open
109
When using the BP mode rescue, can the trains be coupled electrically?
No
110
What is the purpose of the towing cock?
Resuce MR pressure to the coupler to 700kpa when rescuing a comeng
111
Will the uncouple light flash when the towing cock is in use?
Yes
112
How do you activate brake pipe mode during a train rescue?
- turn the BP mode selector switch to required position
- activate using the BP mode key switch
113
How do you charge the BP during train rescue?
Master controller to coast
114
Where is the whistle isolating cock located?
In a panel in the driver's console to left of drivers seat
115
What are the 6 train lined fault lights in the lead cab?
- safety loop
- critical defect
- maintenance fault
- reduced performance
- door system
- compressor fault
116
What are the 5 mcbs that would cause the train to fail (FACES)?
- friction brake and monitoring
- automatic coupler control
- cab/train manned
- emergency brake valves
- safety loop
117
Which of the FACES mcbs would result in the train being rescued if they can't be reset?
- emergency brakes valves
- safety loop
