19. Connect all Class (2) (24) VDC inputs per the
Wiring Legend of
Terminal Strip Hookup
and the
Wiring diagram
.
20. All PLC and motor control settings have been preset by brookfield industries, inc.; however, we
recommend these values be double-checked with the Parameter for NB-4120 sheet supplied.
21. Assure trimpots are set to the 10-20% range before activating the operator.
22. Assure all Safety Instructions and Warnings have been followed.
23. Activate Open and Close and Stop Commands
24. Check timing belt tracking and adjust as required with the take-up end adjusting rods. .
25. Adjust Open and Close trimpots clockwise toward the maximum setting in an incremental fashion
after each cycle.
26. Adjust back check and latch check trimpots as required
27. Adjust PLC door position factory presets as required until full travel is obtained. Refer to the Door
Position Setup and DAU Instructions and the NB-4120 parameters sheet if necessary.
28. Be prepared to hit stop button case any obstacles are encountered.
29. Connect ampere meter in series with one of the phases between the Motor Control and the Motor.
Measure and record maximum amperage reading as door accelerates to maximum speed in both
directions. Measure and record maximum amperage while the door is moving at maximum speed
in both directions.
30. Check and adjust, if necessary, the trimpot settings (refer to the Parameter sheet) on the Motor
Control.
31. Check operation of all other safety devices.
Operate the door several times assuring all inputs, such as open, close and stop features function
properly. Make the necessary adjustments to the factory preset door positions as required
