Maintenance
LD-16 Door Operator - Modernization
82
© Vertical Express
Maintenance
Replace the Door Operator Control Board
Replacement Door Operator Control Boards are mounted in an aluminum box; the
reference sensor is included.
1. Remove the car from service, and then remove the door operator power.
2. Remove all door board plugs.
3. Remove 3 Allen bolts from the top of the door board box, and then slide the alumi-
num box down and out of the door operator.
4. Set the new door board DIP switches and jumpers to match the replaced unit.
5. Attach the new door board box onto the door operator hanger, and then install the 3
Allen bolts at the top to attach the unit to the door operator—do not omit any spac-
ers that may be present.
6. Verify that the REFRSW (reference switch) LED activates approximately
1
/
2
" before
the door is closed. See Figure 62.
Figure 62 - Activated REFRSW (reference switch) LED
7. Verify the following:
a. The doors are fully closed on their rubber buffer stop.
b. The control system is on Inspection Service.
8. Power up the door board, and verify POWER, WDOG, and REPSW LEDs illuminate.
9. Perform a new door scan. See Learn Door Travel on page 63.
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