XTRAP Faults Flashcards
What things can you do to conserve battery power?
(6 answers)
• Put REVERSER in a NEUTRAL
• Master controller key to off
• Headlights off
• turn cab lighting switch to off
• If daylight reduce saloon lights to emergency
• Ensure step light off by closing cab door
What light do you want to see when taking over a train?
High voltage presence
If Major, Major 2nd level or minor fault are illuminated what does it indicate?
Circuit breaker has tripped somewhere on train
If minor fault has illuminated where is the fault?
E box
What is the illuminated AUX fault indicate?
SIV Failure
What does the Battery charger fault indicate?
Battery charger had failed ( can be linked to SIV)
Will have approx 60 min of battery power on affected unit
What does the 24V converter fault light illuminated indicate?
One or more 110vDC to 24vDC converters has failed
If lose all 3 on a unit you will lose function of 24vDC equipment on that unit
If you get a low pressure in BP what do you check
Check emergency trainset mode switch is in 3,4 & 5 (2 normal)
What does Low pressure in MRP light illuminated indicate?
MR pressure has fallen below 650kpa
The train will fail when MR falls to 580kpa, Safety loop will open, Emy brake apply
If you get a low pressure in MRP light what do you check and at what KPa will both compressors come on
Check MRP gauge
580kpa - 650kpa
What does the Low Pressure in BP illuminated indicate?
BP has fallen below 430kpa during rescues
The train will fail when BP falls to 300kpa, safety loop opens and Emy brake apply
What does it mean when traction fault light illuminates?
Traction equipment has failed in this car
If you get a locked axel indication what light will you get or combination of
Service brake fault (any car always)
Traction fault (this car)
1 or more traction EQ fault ( train line)
Wheel slip ( when moving)
What does 1 or more Traction eq. Fault illuminated indicate?
Traction fault has occurred somewhere on the train
What indication besides lights would you get with a locked axel
Wheel slide
Sluggish train ( smoke, smell, retardation)
What does the speed input fault light illuminated indicate?
One or more speed sensors( tacho cables) has failed
You need at least one sport sensor or tachometer on a 6 car train for the threshold equipment to operate
Where are the circuit breakers located on the train?
( 3 answers)
• Cab MCB panel in drivers cab
• Trailer saloon left of door 2
• Electrical box ( Drivers don’t touch)
What circuit breakers are the most important? ( 4 answers)
• Safety loop negative power supply 23Q2
• Panto command
• Multiple unit relay 22Q6
• Safety loop positive power supply 23Q1
What are the circuit breakers called located in the trailer saloon?
• Tachy Unit
• BCU
• Panto 2
• Panto 1
• Aux inverter 2
• Aux inverter 1
What does a parking bake applied light indicate
Park brakes are applied
Can you reset any circuit breakers in the E box?
No
When park bakes are stuck on what reservoir do you need to drain before you manually release them
Auxiliary reservoir
What circuit breaker can you trip/reset to fix Panto lower/ raise faults?
Panto 1 or 2 in trailer 22Q10
What circuit breaker can you trip/reset to fix train shutting down incorrectly (stable)?
Panto command 22Q11 in motor