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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 contact the factory for assistance.
NOTE 1: If the drive's display is blank after power up, and it is a model equipped
with heatsink fans, check to make sure the fans are operating (they should be
spinning anytime power is applied to the drive). If they are not spinning, the
drive's display will be blank and the drive cannot be operated. If the fans are
clogged or jammed, disconnect power from the drive and remove any obstructions
from the fans. Re-apply power to the drive and check the fans. If they are spinning,
the drive's display should appear and the drive should operate properly. If there
are no obstructions, the fan itself may be defective. Please contact the factory for
assistance.
If the drive powers up correctly, follow the procedure given below to check the
motor rotation:
1. Use the DOWN ARROW key to decrease the speed setpoint to the minimum
value allowed (.50 Hz if Parameter 10 - MIN FRQ has not been changed).
2. Press the START key. The drive should indicate RUN, but if the speed setpoint
is .50 Hz, the motor may not rotate. Press the UP ARROW key to increase
the speed setpoint until the motor starts to rotate.
3. 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 2: 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.
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