Cab Equipment Flashcards
What safety equipment does a Siemens train have? (6)
First aid kit
ATWs
Emergency Track Circuit Jumper Cable
Red & Green Flags
Fire extinguisher
Switch stick
What is in the cabinet on RHS of rear cab wall?
Jumper cables
First aid kit
ATWs
Where is the fire extinguisher?
RHS under drivers desk
Trip CB in panel as well
Which cabs are first aid kits located in?
ALL
What is in the Circuit Breaker Panel? (7)
Circuit Breakers
Deadman Test Switch
BP Mode Key Switch & Selector switch
VICERS Isolation Key Switch
Door Loop Bypass
Safety Loop Bypass
Trip Cock Bypass
What does the Deadmans Test Switch do?
Used to activate Deadman’s Device test mode. Tricks train into thinking it’s moving.
Enables Driver to test Hand and Foot Pilot Valve during train prep
Is active for 60 seconds before automatically switching off
What happens when the Deadman’s Test Switch is activated?
Switch illuminates
Audible tone
Test takes 60 seconds and automatically turns off
What is the BP Mode Key Switch & Selector Switch for?
For rescue and recovery
How many positions does the BP Mode Selector Switch have?
What are they?
0 - Normal
1 - Pushed by other train - Rescued
2 - Pulling other train - Rescuing
3 - Pulled by other train - Rescued
4 - Pushing other train - Rescuing
What happens when BP Mode is activated?
Corresponding light will flash on the fault panel
Repeater light will flash towards opposing cab
What is the VICERS Isolation Key Switch for?
When VICERS fault light illuminates use blue VICERS key to turn switch to isolate
Once turned only maintenance staff can turn back with pink key
What happens when any of the Bypass Key Switches are turned to the ‘I’ position?
Safety System Isolation fault light will illuminate on fault panel
Can only be turned back to normal position by maintenance staff
What does the Door Loop Bypass Switch do?
Bypass door system in event of defect
When FDCL cannot be rectified
Allows train to obtain traction power irrespective of door positions
What does the Safety Loop Switch do?
Bypasses DEAD HOL
Deadman’s devices
Emergency Stop button (non-active
cabs)
Automatic coupler relay
Door close relay
Holding brake relay
Over speed relay
Low Main Res. pressure relay
Does the Safety Loop Switch Bypass everything when it is turned?
No
Lead ESB still works
EXAM QUESTION
What does the Trip Cock bypass switch do?
Enables driver to isolate Trip in event of defect
Trip has to be in RAISED Position when CB is tripped
What happens if Trip Cock or Safety Loop Bypass keys are isolated?
Secondary Safety Circuit Introduced:
MAD button illuminates above 0.2kph
MAD button is pressed to reset timing of the Secondary Safety Circuit
When Secondary Safety Circuit is introduced how often does MAD button flash and emit a tone?
45 Seconds - for safety circuit
30 if just using as a reminder
????? Cray cray
How long does the driver have to push the MAD button once it starts flashing?
10 Seconds
What happens when the Master Key Switch is turned on?
What is the one thing that won’t work?
Cab is activated
All Cab functions can be used - except Train Stable!
Trip lowers - but does not reset
What positions does the Master Selector switch have?
Reverse
Neutral
Forward
Set Speed
When do you use Neutral?
When stopped at signal
Cab unattended
To deactivate cab
What happens to marker lights when Neutral is selected?
They change to RED.
You have to put them manually to WHITE if required
What happens when you select FORWARD?
Marker lights automatically go to WHITE
Automatic Headlights are on
How fast will the FORWARD position allow you to go?
Up to 115kmh
What happens if the train goes too fast?
Over speed system will apply the emergency brake over 125kmh
What does the Set Speed position do?
Limits speed to 6kmh
Overspeed emergency brakes will activate at 8kmh
Automatic headlights are on
What positions does the MCH have?
EMERGENCY BRAKE - B7
BRAKE - B1-B6
0 (COAST)
DRIVE - D1-D7
What status must the train be in to operate the MCH?
Key in and on
Reverser NOT in NEUTRAL
What status does the train have to be in for the Master Key Switch to be turned on?
Selector Switch (Reverser) in NEUTRAL
MCH in FULL SERVICE (B6)
What braking does Emergency Brake use?
Friction brakes
ED brake and traction power are isolated
When does holding brake apply?
0.2kmh
What is Holding Brake Pressure?
110kPa
What is Emergency Brake Pressure?
280kPa
What is FULL SERVICE Brake Pressure?
189kPa
If you release the Hand or Foot pilot valve what happens?
If the train is above 0.2kmh a tone will sound and emergency brakes will apply after 3 seconds
What is VICERS comprised of?
Vigilance Control System:
- Task linking
- Acknowledgement button
- Audible buzzer
- Fault Indicator
- VAV
Event Recording:
- VM40 Event Recorder
- GPS Antenna
How long will the VICERS acknowledgement button flash for?
How long will the audible buzzer sound for?
5 seconds
Another 5 seconds
then emergency brake applies
What happens if you hold the acknowledgement button down too long?
After 5 seconds the emergency brakes will apply
What positions does the VICERS Isolation Key Switch have?
Operate and Isolate
Test function is controlled by button on driver console
Self-test occurs on train start-up
What happens if there is a VICERS fault?
VICERS Fault light illuminates
Must turn turn VICERS Isolation key to ISOLATE
Data is still recorded
Acknowledgement button will stop activating
What Circuit Breakers are in the panel behind the fire extinguisher on A side of the cab?
GPO
Trip Cock Device
How does the Trip raise and lower on a Siemens?
Automatically:
Key On - Lowered (but not reset)
Key Off - Raised
How do you prevent trip from lowering?
Deactivate cab - CAB OFF - key OUT
Pull Trip cock device CB - then it will stay raised when cab is activated
What are 2 positions of master key switch
On and off
What is FULL SERVICE Brake Pressure?
189kPa
What does the Duplex gauge display?
What colours?
Red - Main Res.
Black - BC
What does the Overspeed Lamp Indicator show?
Illuminates when train has exceeded 119kmh
Emergency brakes come on at 125kmh
What does the DDA (dis. Descrimination Act) button do?
Flashes white 5 times then remains steady
When you press button CCTV turns on
When does the Cab Speaker automatically turn on?
When PEI is activated
What does the General Fault Indicator do?
Flashes red when there is a train fault.
What is the Auto Door Close Inhibit button for?
Assisting special needs passengers at door 1 and
Press button before you remove keys
Keeps doors open
What does the uncouple button do?
Indicates cab is in coupled position.
Centre cabs are illuminated
Also flashes when low main res pressure is present - below 750 (850kPa during rescue)
What does Train Stable button do? (2)
Shuts down computer systems
Lowers pantographs - 30 seconds
Key must be in OFF position
How do park brakes apply? (3)
When key is in and on turn Park Brake Switch
When key is off park brakes will automatically apply
Main Res. pressure drops below 350
What positions does the Saloon Light Switch have?
On and Emergency
What does the MAD button do?
Tone every 30 seconds
Flashes yellow
How does the Trip raise and lower?
Lowers - automatically when cab activated
Raises - automatically when cab deactivated
When do you use Trip Reset switch?
Only when Trip is activated:
Trip test
SPAD
R1S3
What does the Electric Brake Inhibit button do?
Temporarily disables ED braking and enables EP braking
Wheel Slip unit automatically switches from ED to EP and operates sanders - button lights up when this happens
What does Critical Fault Light mean?
Unit must be taken out of service
What are the three main reasons Critical Defect Light illuminates?
Friction brake failure
Both SIVs fail
Wheel slip fault affecting sanders
What CBS can you check if Critical Fault light illuminates?
Friction Brake Monitoring
- motors and trailers
Static Inverter Monitoring
- MCB Trailer
What could cause the maintenance fault Light to illuminate?
Traction - defective or isolated
SIV - only one operating
Saloon door isolated by door control unit
Brake not released (not SPB)
HVAC - defective
PA - System defective
CCTV - system defective
What does Reduced Performance indicator light mean?
One or more motors not powering
What does Compressor Fault indicator light mean?
MR pressure dropped below - 850-1000
Local fault lights…
What does the Traction System indicator light mean?
Local traction motor has serious defect
Or
Train stable, HSCB, Light Control MCB has tripped
What does the Safety System Isolation fault light mean?
A Bypass key Switch has been operated
What does the Fault Acknowledge button do?
Press to acknowledge a fault
Will turn from flashing to steady
In the MCB Panel on Rear cab wall what are the CBs that can trip and open safety loop?
SAFE CD
Safety loop
Auto coupler in centre cab
Friction Brake monitoring
Emergency Brake valves
Cab manned
Door Control train line
? Train stable, HSCB, Light Control
Which are the only two that can be bypassed?
Friction Brake monitoring
Auto Coupler in Centre Cab
What happens if TCU MCB trips?
Local motor is not available
(Reduced performance fault indicator in any cab
Traction system fault light on affected motor)
What happens if Panto Control MCB trips?
Train lined
Can’t raise/lower any pantos from local cab
What happens if Panto Motor MCB trips?
Local
Panto in local cab cannot be raised
What are the Train Lined Fault Indicator Lights?
Safety Loop
Critical Defect
Maintenance Fault
Reduced Performance
Door System
Compressor Fault
What are the Local Fault Indicator Lights
Brakes Bogie 1&2
Park Brake Bogie 1&2
Vigilance Failt
PA
HVAC 1&2
Traction System
CCTV
