Traction - Siemens Underframe Flashcards
How to reset the trip (3)
Train = 0kmh
Master Controller = 0 (coast)
Turn reset switch against spring and release
What does the towing unit do?
Reads and writes from BP when coupling unnalectrically.
Talks to BCU
When using the towing unit and in brake pipe mode what turns first, the key switch or selector?
Selector to desired number/rescue type, then key switch to turn on.
When in brake pipe mode, if the rescuing train has BP mode 3 selected, what should the rescue train have?
2.
Both trains must equal 5.
When in brake pipe READ mode what is brake step 0 pressure?
> 480kpa
When in brake pipe READ mode what is emergency pressure?
300
What does the towing cock do?
Chokes MR pressure when coupling with a comenge. Prevents overcharging as both MR pressures are different
When towing cock is in use, what does it lower MR pressure to? Does it change the whole train pressure as well?
Lowers to 700kpa only in cab it is turned in. Rest of train will continue at operating pressure 850-1000kpa
When the towing cock is being used, what light can sometimes flash as a result of the mismatched MR pressures on the train?
Uncouple light
When the towing cock is being used, what light can sometimes flash as a result of the mismatched MR pressures on the train?
Uncouple light
What does the manual valve (master cock) do?
Allows complete isolation of whole pneumatic system of the coupler
What does the manual valve EXTEND do?
Prevents coupler doors opening during coupling
What does manual valve RETRACT do?
Prevents doors from retracting during Uncoupling
Do driver use the electrical coupler handle?
No
Is the brake module used in EP braking?
Yes. Does not get used in ED.
Brake module locations
Wheels 3 and 7 per car
Brake module functions (7 answers)
SEBWAP-C
Service braking
Emergency braking
Brake blending
Wheel slide control
Cleaning air supply to brakes
Park brake operation
Air suspension system
What does sander iso cock do?
Isolates compressed air to sander box
Where are sanders om motor cars?
3 and 6
Where are sanders on trailer cars?
2, 3, 6, 7
What do the SIVs convert 1500v DC into (3 answers)
400v AC (3 phase)
230v DC (single phase)
110v DC
What 3 main things does 110v supply power to?
Charges batteries
Powers safety loop
Other safety critical functions
What 3 things use battery to power
Pantos
Desk light
Step light
How can pantos be raised
Electrically and mechanically
