SIVs, Doors, Safety Loop Flashcards
What happens if one SIV fails?
HVAC - reduced to 50%
Other SIV takes care of:
Battery
Air Compressor
Traction Control Unit
Lighting unaffected
What is affected if both SIVs fail?
Battery charger no longer charges batteries
Air compressor stops
HVAC stops
Emergency lighting only
Half cab lighting only (flouro)
How many volts does the battery need to have to start up the SIVs?
82 volts
How can you attempt to fix a SIV fault?
Train stable
If the batteries have failed what is the emergency procedure to start the SIVs?
Press Train Stable
Trip Panto Motor CB
Raise local panto manually
Proceed to A side of TC, insert triangle key into SIV, remove cover and press excite button for 5 seconds or so until it clicks
Return to cab and activate
Push Panto Up button
Reset Panto Motor CB
What Door CBs are in a MC?
Door Control Train Lines CB
Closed and locked Loop CB
(Saloon doors will not prove closed)
Door Control Power Supply 1,2,3 and 4 CB
(corresponding door will be inoperative)
What Door CBs are on a TC?
Where are they?
Door Control T Car CB
(doors will not prove closed)
Door Control Power Supply 1,2,3 and 4 CB
(corresponding door will be inoperative)
Ceiling Cabinet, RHS Door 2
If you get a FDCL at a platform what CB can you try to rectify?
Trip and reset Door Control Train Lines CB
If you can’t rectify a FDCL at a platform what do you do?
PA, Cab unattended, TEC call
Locate door and close by pushing ‘button’ button.
- if door remains open trip corresponding door CB, then manually close
Insert tri-key into isolation port and rotate 90 degrees clockwise
- reset CB if required
Observe DOOR OUT OF ORDER light illuminated
Push door open button to confirm door does not open
Apply sticker
If you have an extinguished blue door closed light what could be the cause?
DER pulled
Trailing cab door open
How do you reset the Safety Loop in a Siemens?
MCH to 0
What can cause the Safety Loop to open?
Cab activated- is key in and on?
Overspeed - is Overspeed indicator illuminated (coast for 3 seconds)
PV set
Trip activated?
VICERS activated?
MR pressure below 600kPA
Emergency Stop button
Was train divided
Trip Loop - Trip Cock Bypass
If you have checked everything and Safety Loop light still illuminated what do yo do?
Operate safety loop bypass and run on secondary circuit
If safety loop light still illuminated Train disabled
What do you need to do if you get a door systems fault light?
Train has isolated a faulty door in the closed position
Find door with illuminated out of use light
isolate with tri-key
Apply sticker
TMM
Press fault acknowledge
