270
ADDENDUM III – TRACTION BRAKE PICK OPERATION
NOTE: In order for the brakes to work when the main line disconnect is turned off the auxiliary
switch mounted on the disconnect box must be wired to ML1 / ML2.
1. Switch the main line disconnect to the off position.
2. Turn on Dip switch #6 on Dip A and set the Machine Room inspection switch to inspection.
This keeps the controller from trying to run the car and prevents faults from popping up.
3. Turn the Battery Rescue Switch to the ON position.
4. This should power up the SRU board and provide power for the brake coil(s) to pick.
a. The following faults can be ignored during this procedure:
i. Stopped no DZ
ii. Drive Fault
5. On the SRU LCD screen, record the location (feet/inches) of the car in the hoistway. Check
to see if there is a “DZ” in the upper right hand corner of the LCD screen. If “DZ” is present
the car is already in a door zone. If the car is in a door zone skip to Step 9.
6. Navigate to Main Menu | Status |Magnets and scroll to the nearest floor above and below
the car to see which floors the car is between. This will tell you where you need to move the
car to for a door zone.
7. Press the button on the box labeled Brake Pick while simultaneously pressing in the
Contactors B1 (and B2 if installed). This should lift the brake(s) and allow the car to drift.
8. Allow the car to drift until a Door Zone is reached.
a. The SRU board has an indicator in the top right of the controller labeled DZ.
b. This indicator activates if the car is +/-3 inches away from floor level at any landing.
c. At this point a B+__ (car moving up) or T-__ (car moving down) number will appear on
the line below DZ.
d. Depending on the magnet placement, if the B+ or T- number reads 14 the car should be
close to floor center.
e. Release the B1 & B2 contactors.
9. At this point from the SRU board.
a. Using the Right Arrow key navigate to Main Menu| Setup| Door Setup| Manually Open
and Close.
b. Use the Right and Left Arrow buttons to put the asterisk under Open.
c. Press and hold the Enter button to open the doors. Once the Indicator indicates the
doors are fully open. Release the Enter button.
d. Once Passengers have disembarked. Move the Asterisk under Nudge. Press and hold the
Enter button until the doors show fully closed.
10. Turn off the switch in the remote box labeled Brake Pick.
11. When safe to do so power on the Main Line Disconnect.
To Next Page
Loading...
Need help?
General
