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Traction > HCMT Door Systems > Flashcards

HCMT Door Systems Flashcards

1
Q

Where is the door control unit located?

A

Above LHS of every door

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2
Q

What happens if there is any failure detected by the door control system?

A

It is reported by the module to eTIS. Then the driver gets an alert on the TMS

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3
Q

What is the Traction Interlock Bypass Switch for?

A

Its located on the rear cab wall with the CB’s

It bypasses the door status loop circuit if the door status loop fails

(Cab doors are also linked to door loop circuit must ensure they are closed to gain traction)

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4
Q

What does a greyed out door on the TMS train pictogram mean?

A

Door closed and inhibited

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5
Q

What does a green door on the TMS train pictogram mean?

A

Doors closed but not inhibited

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6
Q

What does a WHITE door on the train pictogram indicate?

A

Door open

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7
Q

What does a RED door on the TMS train pictogram mean?

A

Door failed (defective)

Inside train = closed position
Outside position = door open

Flashing red box =
- DER - EED pulled to stage 2;
- EAD activated;
- cab EAD being held down (white door when released)

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8
Q

What does a yellow door on the TMS train pictogram mean?

A

Door isolated

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9
Q

What does a empty box door on the TMS train pictogram mean?

A

Status is unknown

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10
Q

what does ASDC mean and what is its purpose?

A

Automatic SelectiveDoor Control

Prevents wrong side door release

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11
Q

How is ASDC tested?

A

Self tests on start up

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12
Q

What are Balise Beacons for?

A

Train has beacon readers on Tc cars which enables ASDC to determine

  • which station train is at
  • what side the platform is on
  • the length of the platform
  • distance to the stopping mark

(It also automatically turns on the stopping Aid camera)

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13
Q

What happens if the stopping aid camera doesn’t come on automatically when at a platform?

A

Driver can manually activate it on the SDU when safe to do so

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14
Q

When will the doors be enabled for opening by the TMS ?

A

When safe- 0 speed, doors on platform

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15
Q

Must a driver visually confirm the correct side for door opening prior to releasing the doors?

A

Yes

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16
Q

What will happen if doors are not opening due to being off the platform?

A

eTIS will instruct passengers to move to the next available car via the PIDS

  • driver may also make a PA
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17
Q

What happens if the incorrect side door release button is PRESSED?

A

Alarm will appear on the TMS (yellow banner) to alert the driver

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18
Q

What happens when there is an overshoot over 10 metres?

A

Doors unavailable for release and remain grey
Driver can manually release the doors that are on the platform

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19
Q

What is the purpose of the auto door close inhibit button?

A

Prevents auto closing of doors after 60 secs

20
Q

When is auto door close inhibit cancelled?

A

When driver presses blue door close button

21
Q

For how many seconds does the door open push button remain inoperative when pressed by passengers before doors are released?

A

0.5 seconds

22
Q

What indication is given when a door or doors have not proved closed ?

A

It remains illuminated red on the outside of the train in the pictogram

23
Q

How many times will doors attempt to close when a door is obstructed?

A

4 times

Then

  • an alert on the TMS (yellow banner)
  • door remains fully open until driver presses Door close button again.
24
Q

What happens with the train when there is a substandard beacon read or a beacon read (one of the beacon readers on the Tc cars fails)?

A

The train will assume the platform is shorter

Either first or last saloon door will remain inhibited on the platform as a safety measure

eTIS will advise passengers on the PIDS to Use doors on the next car

25
Q

What is the drivers responsibility in the event of a sub standard beacon read?

A

Make a PA to let passengers know to move to the next available door

Operate saloon doors as normal

Report as per FMP

  • If a wheelchair ramp is required at the inhibited, first door, the driver must use the ASDC override button to release the affected door only if safe to do so
26
Q

What must a driver do if there is a ASDC beacon read failure?

A

Driver must follow the ASDC override procedure

A- announcement to passengers
S- Operate SDU ensure all doors on platform
D- Check doors on platform side (cab DOOR)
C - select 1st car to last car (TMS) ON CORRECT platform (doors must turn green) before using ASDC override button

27
Q

When performing ASDC override procedure, will there be a warning if you select the wrong side of the platform to open the doors on?

A

No

Full adherence to procedure is critical

28
Q

When is the internal and external DER enabled or disabled?

A

DER is disabled when the train is stabled or when the HCMT is remotely started

DER is enabled once the cab is activated by a driver and remains until the train is stabled

29
Q

What are the two stages of DER operation?

A

Stage 1 - DER is pulled -20 seconds

stage 2 - door opens if the DER is not inhibited by the driver Within the first 20 seconds

30
Q

When is emergency access using the external DER prevented?

A

When the doors have been isolated or when the train stabled

31
Q

Can a external DER be operated, allowing for emergency access in the event that the train has no power?

A

Yes

32
Q

How is an internal DER being pulled indicated to the driver?

A
  • Intercom and CCTV is activated
  • The EED alert will illuminate on the affected car door on the SDU
  • Level 3 alert appears on the HMI
  • If train is in motion, the door will remain locked
  • If Train is Stationary :

The driver has 20 seconds to allow or inhibit the door release (otherwise it can be opened manually)

the driver will receive a level 2 alert after 10 sec of DER being pulled

33
Q

How long is the door inhibited for when the DER inhibit button is pressed?

A

120 secs

34
Q

How can the driver make the DER available after pressing the DER INHIBIT button?

A

By pressing the cancel DER inhibit button

35
Q

If the DER becomes available because it’s not inhibited by the driver, how can the passenger unlock the door?

A

They must continue to pull the DER handle fully down to unlock the door

36
Q

How will the Driver know During a DER activation when stage 2 has been reached?

A

The DER activated status of a saloon door (in the train pictogram) will be red and flashing

  • If the box within the picture is solid gray, the door is not open
  • If the box is on the outside of the train pictogram, the door has been opened
37
Q

Can a DER reach stage 2 if the handle has not been released Even after 20 seconds?

A

No

The handle could go beyond 20sec wait time to reach stage two or indefinitely stay in stage 1

38
Q

What Alert will a driver get when the external DER has been operated And how must
the driver respond?

A
  • A level one alert and an audible tone
  • Driver must acknowledge the alert on the HMI
  • Driver can check CCTV cameras for location of the DER
39
Q

Can an external DER operate when the door is defective, and has been isolated

A

No

40
Q

How can a driver reset an activated DER?

A
  1. reset the handle
  2. Manually open the door to manually Reshut
  3. Go press the door close button in cab
  4. Confirm door is closed on HMI and internal external DER reset
41
Q

When is the cab external EAD powered and able to be operated?

A

When the train “start up” which has been selected, and the local cab is activated

42
Q

How long must an a EAD be held down to activate the door latch?

A

10 seconds

43
Q

What alert will the driver get there an a EAD has been activated?

A
  • Audible alarm,
  • TMS alert to the driver
    -.EAD override button will illuminate
44
Q

How long is the cab EAD prevented from releasing for when the EAD override button has been pressed?

A

5 minutes

(and it can be restarted by pressing it again)

45
Q

Can passengers open the internal fire doors manually when they have been automatically closed due to fire?

A

Yes, only until the car reaches 120°

(You’ll be cooked by then anyway)

46
Q

When are the internal fire doors in the closed position?

A

Only when Smoke is detected
OR
when the train is stabled

47
Q

What are the different types of door faults that can occur on the HCMT?

A

Obstacles.
Faulty door coding.
Loss of power to a door
Cab door Faults

Traction (32 decks)

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