SIVs, Doors, Traction, Tacho

Question 1

What happens when one SIV fails on a 3 car unit?

Answer 1

Other SIV will automatically take up load for both

Only one AC operates

Only 1 Air compressor operates

Battery fault light may illuminate for 2 minutes while it changes over to the other SIV

Traction cooling fans and saloon lighting unaffected

Question 2

What equipment is affected if two SIVs fail on one unit?

Answer 2

400vAC will be lost:

Battery charger
Air compressors
Traction cooling fans
HVACS

Question 3

What do you do to rectify SIV faults?

Answer 3

Attempt to reset CB in TC

Train Stable

Question 4

If both SIVs have failed and unable to rectify what do you do?

Answer 4

1 hour to move train in degraded mode to nearest siding

Question 5

How is each door controlled?

Answer 5

Electric motor in panel to the left side of each door.

No. 1 door motor in panel in drivers cab

Question 6

What positions does the Door Motor Isolation Switch have?

Answer 6

Motor Release (all the way up)

Motor Isolate (45 deg. above horizontal)

Normal (horizontal)

Motor Lock close (45 deg. below horizontal)

Question 7

What do you do with a FDCL between stations?

Answer 7

Assume somebody is on train

Check if DER is illuminated

If DER illuminated acknowledge PEI call

PA to stand clear of doors

TEC call

Reduce speed

Observe train

Stop at next platform to investigate

Question 8

What happens if you get FDCL mid section and you have to stop?

Answer 8

You have to rectify FDCL. Once stopped train won’t move

or

Turn Door Loop Bypass

Question 9

What do you do with FDCL at a platform?

Answer 9

Release doors

PA announcement - stand clear remove obstacles

Close doors and check if still there

PA announcement asking passengers for help

Cab unattended, close doors, portable radio, TMM, stickers, locate fault

TEC call while in transit to affected door

Question 10

What indication do you get of a faulty door?

Answer 10

Tone sounds for 60 seconds

Question 11

What indication do you get in leading cab when a DER is operated?

Answer 11

FDCL

DER Emergency Handle Activated fault light

Flashing Red ANSW button

DDU beeps

Question 12

How do you isolate a defective door?

Answer 12

Locate door

Open overhead cabinet to left of door

Motor Isolation Switch to Motor Release (fully raised)

Manually close door

Motor Isolation Switch to Motor Lock Close (fully lowered)

Apply door not in use stickers

Report as per FMP

Question 13

What happens when you get a Traction Fault?

Answer 13

TCU analyses and attempts to rectify

Automatically isolates equipment

Question 14

What indication do you get of a Traction Fault?

Answer 14

Traction Fault light (this car)

1 or more traction Equip. Fault (train lined)

No green LEDs on power indicator when powering

Possible shuddering while train is in motion

Question 15

How do you rectify a Traction Fault?

Answer 15

Isolate Traction isolation switch

Train stable

If you have time …

Activate each cab one by one and locate cab that has both ‘Tration Fault’ light and ‘1 Or More Traction Equip.’ fault light

Question 16

What happens if all Tacho Speed Sensors fail on both units? (6)

Answer 16

Train does not know if it is stationary or not:

D oors won’t release

U ncouple button won’t work

S peedo won’t work

T rip cannot be reset

VICERS cannot be reset

BP pressure will not be restored after emergency application during train rescue