siemans

Question 1

what happens when you stable a siemans?

Answer 1

no saloon lights at all no marker lights, doors will lock. so when stabling on the mainline it is important to be i contact with TC and preferable under protection of home signals, at a platform and not activating a level crossing

Question 2

what does the general fault light flashing indicate?

Answer 2

there is a fault in the sub-system on the train. it will also illuminate for maintenance requirements

Question 3

if general fault light is flashing and you acknowledge can it flash again

Answer 3

yes if there’s another fault, keep pressing the button

Question 4

what does the 1st unit or 2nd unit fault lights tell us

Answer 4

which unit the fault is on, you could have traction systems if it was on the motor you are in

Question 5

what are the three possible causes for critical defect?

Answer 5

critical fail in the pneumatic friction brake system
complete loss of auxiliary power 2 sivs
defective wheel slip unit affecting the operation of the sanders

Question 6

what can you inspect if you have a critical defect indicator?

Answer 6

friction brake and monitoring (all cars of affected unit)
static inverter monitoring (trailer)

Question 7

what does a maintenance fault light tell you?

Answer 7

that unit is due for a service
safe operation of the train should not be affected

Question 8

maintenance fault light examples

Answer 8

single siv out
isolated/defective door
brake is not released
one HVAC defective
PA system is defective
CCTV defective
a compressor fault
traction system is defective or requires maintenance
fault with sanders that’s not due to to wheel slip unit

Question 9

what can you do to simulate a motors all out situation or dive the train while asking for less power

Answer 9

trip one of the TCU CBs

Question 10

what does the reduced performance light indicate

Answer 10

one or more motor cars are failing to deliver traction power (a TCU is not functioning),
the TCU will automatically ok so late the traction motors, no action required by driver. traction system light will illuminate if it is you lead motor

Question 11

what should you do to try and reset a reduced performance light in a slip/slide event

Answer 11

MC to 0 for 2 seconds, progressively resume powering (ask for less)

Question 12

another cab active light

Answer 12

buzzer will sound if you are attempting to be a second active cab. If you can’t deactivate a cab trip cab train manned in that cab

Question 13

CCTV screen failure

Answer 13

normal in centre motors
inspect CCTV central Control
DCDC inverter PA PI display

Question 14

failure of PID

Answer 14

check DCDC inverter PA PI display
check Passenger Information Display

Question 15

DRRS faults / reset

Answer 15

deactivate cab
trip and reset DTRS CB
activate cab
enter TDN/ radio test
TMM

Question 16

DTRS isolate

Answer 16

deactivate the cab
trip the CB out
reactivate cab
place portable in cradle

Question 17

PA failure during prep

Answer 17

check the PA system CB (dma)
check DCDC inverter PA PI display
stable, must be longer than 2 minutes

if during running use DTRS and book

Question 18

one panto fails to raise

Answer 18

both high voltage and panto up will illuminate
inspect pantograph control in local driving cab
inspect panto motor in affected driving cab
try and raise from another cab
raise manually

Question 19

all pantos fail to raise

Answer 19

it could be a problem with the circuit or lack of battery 82 volts check panto control CB
check if will raise from another motor
try a stable wait 1 minute trip panto motor
raise lead manually with crank handle clockwise until you feel pressure
observe it has raised
panto up button
reset the CB
TMM

Question 20

panto fail to lower when train stabled

Answer 20

inspect Train Stable HSCB & Light Control CB in local cab
inspect Shutdown Delay in TRAILER car
trip TCU cb incase the train thinks it’s in motion
TMM

Question 21

panto fail to lower when panto down button pressed

Answer 21

inspect panto motor
leave it in a siding as is- better for fitters

trip reset and panto down again

Question 22

isolating a panto

Answer 22

key off
stable
trip panto motor
lower manually if required
key on
panto up
visually inspect it has remained lowered
TMM

Question 23

lose both SIVS

Answer 23

no air con
emergency light only
battery charger stops charging
half drivers cab fluros
no air compressor
(BATHG -the T is TCU)

Question 24

how can you manually start a SIV

Answer 24

stable
trip panto motor
raise local panto with crank handle
go to SIV A side underframe use tri-key to open small rectangle box and press self excite, hold until you hear a click
trip it back in
activate cab
push panto up
TMM

Question 25

panto fails to lower when train stable is pressed

Answer 25

inspect Train Stable HSCB& light control- reset or trip and reset
inspect shutdown delay- same
TRIP the TCU it may not recognise the train has 0 speed which prevents a stable

Question 26

to isolate a panto

Answer 26

stable
trip that panto motor
reactive and panto up while that remains a tripped out

Question 27

when a panto is isolate which fault lights will you see

Answer 27

both line voltage and panto up
if panto up is illuminated- there is a panto down

Question 28

door circuit breakers in a dm car

Answer 28

door control
closed and locked loop
1-4

Question 29

door circuit breakers in a t car

Answer 29

door control t car
doors 1-4

Question 30

respond to flashing door close light at a platform

Answer 30

normal procedure from cab
trip and reset door control train lines
try close