HD-98 Door Operator with OST
Door Setup
Printed in USA November, 2011
17
Nudging Duty
Notes:
•
If there is a safety edge or photo-eye failure, the doors will run closed at nudging duty.
•
If an electronic safety edge is used, the doors can operate at nudging duty on Fire Service.
•
Front and rear doors must be adjusted separately; a force gauge is required for this procedure.
1. Use the OST and set adjustment D11=1 to enable the nudging option.
2. Set the nudging timer D19 to 10-15 seconds.
3. Set the door watchdog timer to 600 (60 seconds).
• D20 for front doors.
• D21 for rear doors (this prevents a door reopen from a watchdog failure).
4. Use the door open push button in the car to open the doors, and then place a car call away
from the present position of the car. Use the safety edge to prevent the doors from closing.
5. When nudging operation starts, use the force gauge to stall the doors in mid-travel, and note
the reading. See Figure 8 for safe operation of the force gauge.
Figure 8 - Safe Operation of the Door Gauge
6. Modify the nudging duty (E21), until the reading on the gauge matches, or is less than, the
maximum force allowed by National, State, or Local code.
7. Set D20 and D21 to their original values, and set D11 and D19 per the job contract option
requirements.
8. Use the OST to issue the WRT Command.
