Acronyms

Question 1

Before 
The 
Idea
Came
To
Me?

Answer 1

Battery positive
Train control MCB
Interlock relay
Control governor
Traction interlocking
Master controller

Question 2

VIBE

Answer 2

Vigilance
Intercom
Bell
EP Brakes

Question 3

DOIL

Answer 3

Door Open Indicator Light

Tripping the DOIL trips the door circuit for the Motor/Trailer pair.

Question 4

LVIL

Answer 4

Line Voltage Indicator Light (car concerned)

For the pantograph

Question 5

AFIL

Answer 5

Auxiliary Fault Indicator Light (car concerned)

Indicates a fault with the AOD or battery charger.

Only lit when powering.

Battery charger fault: AFIL on car.
AOD fault: AFIL on pair of cars.

Question 6

PFIL

Answer 6

Power Fault Indicator Light (car concerned)

Indicates a fault with the Traction Motors

Question 7

FIL

Answer 7

Fault Indicator Light (train line)

When there is a fault anywhere on the train line.

Can be reset with the SIS (Supply Selector Switch) to allow other faults to come through.

Will illuminate in the Drivers Cab and in the affected Motor/Trailer pair.

Shut off Master Controller to press RESET button to reset FILs.

Question 8

WSIL

Answer 8

Wheel Slip Indicator Light

When wheels slip or the parking brake is on.

Question 9

OCR / OVR

Answer 9

Over current relay
Over voltage relay

Protection for the AOD

Question 10

WSAR

Answer 10

Wheel Slip Auxiliary Relay

Question 11

EMPB

Answer 11

Emergency Push Button.

Bypasses the Control Governor.

Operated by OMET-qualified worker

They must check the signals
Check driver is ok
Ensure 425kPa BP air

Question 12

NVAR

Answer 12

No Volt Auxiliary Relay

Question 13

MCB

Answer 13

Miniature Circuit Breaker

Question 14

SIS

Answer 14

Supply Indicator Switch

Extinguishes fault light when battery charger fault cannot be rectified.

Question 15

BCOS

Answer 15

Battery Change Over Switch

Draws a battery feed from the lighting batteries for the control circuit if control batteries are flat.

Question 16

SSS

Answer 16

Supply Selector Switch

Turns on and off motor alternator or get emergency feed from next working alternator. EMG 1 not used. Only ever used ON, OFF or EMG 2.

Gives half air-con when sharing feed, full lights and battery charging.

Turn it on the fault alternator.

Question 17

MCOS

Answer 17

Motor Cut Out Switch

Isolates traction motors.

All In
All Out
1 - 2 Out
3 - 4 Out

Question 18

RSS

Answer 18

Remote Supply Switch

Motor car. Gets battery power from other car.