HCMT Faults Flashcards
Which level of alert required immediate attention?
Level 1
Which BPS causes the safety system fault light to illuminate? (4)
• Traction Interlock
• Zero Speed
• Trip
• Driver Safety Device
What brake must be used on a Comeng on non-electrical rescue with another train?
Air brake
When safety system acknowledge button is active, in what intervals must it be pressed to avoid emy brake application?
30s
When performing a ‘Hard stable’ how long does a driver hold the start up button for?
7 seconds
What is the purpose of the traction interlock BPS?
To obtain traction power if there is a fault on the door status loop circuit
What BPS does a driver use with a fault with the hand and foot pilot valve?
Driver safety device
MR pressure switch is used when coupled to which EMU?
Comeng
True or False
The trip bypass must be operated if the trip has been isolated?
True
True or false
When the recovery switch is operated the HCMT automatically matches the MR pressure of the attached train?
True
In the event of a pulse switch module, which BPS needs to be operated?
Get home mode
What’s position 3 of the recovery switch?
Pulled
What’s position 3 of the recovery switch?
Pulled
What’s position 2 of the recovery switch?
Pulling other train
Which BPS if operated requires you to detrain passengers if operated?
(5 answers)
• MR Pressure Switch
• Traction Interlock
• zero speed
• trip
• drivers safety device
3 main electrical faults?
• Circuit breakers
• Traction
• Auxiliary Power
Which system monitors the status of the position of the CBs?
eTIS
When conducting a recovery procedure the HCS must be isolated?
Yes
Max amount of times a driver can re-set a CB?
Twice
At what BP pressure will the EMy brakes apply when in recovery mode
300kpa
Which of the follow are considered single point failure CBs?
(4 answers)
• Cab activation
• brake control supply
• emy brake loop supply
• traction control
True or False
If the single point CBs cannot be re-set the train needs to be declared disabled?
True
If the driver is presented with a traction and or aux fault, which button should a driver press to rectify the fault?
TCU/ACU reset
What is the most likely cause of the traction and aux power failing simultaneously?
HSCB tripping
What the functions of the towing unit?
It’s for the HCMT brake control to interface with other rolling stock via a traditional brake pipe connection
It reads and writes BP signals
The HCMT is fitted with a continuous brake pipe?
No
True or False
Most electrical system will self isolate?
True