Specifications
27
If the display does not appear, remove the incoming power, wait three minutes for the bus
capacitors to discharge, and verify correct installation and wiring. If the wiring is correct, re-
apply incoming power and note the display for drive status. If the display still does not
appear call the factory for assistance.
If the drive powers up correctly, follow the procedure given below to check the motor
rotation:
1. Verify that there is a wire jumper between terminals TB-1 and TB-2 on the Main Control
Board. The drive should have this jumper from the factory. If it is not present, add one,
otherwise the drive will not start.
2. Use the DOWN ARROW key to decrease the speed setpoint to the minimum value
allowed (0.50 Hz if Parameter 10 - MIN FRQ has not been changed).
3. Press the START key. The drive should indicate RUN, but if the speed setpoint is 0.50
Hz, the motor may not rotate. Press the UP ARROW key to increase the speed setpoint
until the motor starts to rotate.
4. If the motor is rotating in the wrong direction, press the STOP key and remove power
from the drive. Wait three minutes for the bus capacitors to discharge, and swap any two
of the motor wires connected to T1, T2, and T3.
NOTE
The drive is phase insensitive with respect to incoming line voltage. Therefore, to change
the motor rotation, the phases must be swapped at the drive output terminals or at the motor.