LEESON SM-Plus Series Sub-Micro Inverters - Manual (Page 27)

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Follow the procedure below to check the motor rotation. This procedure assumes that the drive has been
powered up for the first time, and that none of the parameters have been changed.
1. Use the ▼ button to decrease the speed setpoint to 00.0 Hz. The left decimal point will illuminate
as the speed setpoint is decreased. If the ▼ button is held down, the speed setpoint will decrease by
tenths of Hz until the next whole Hz is reached, and then it will decrease by one Hz increments.
Otherwise, each push of the
▼ button will decrease the speed setpoint by a tenth of a Hz.
Once 00.0 Hz is reached, the display will toggle between “00.0” and “- - -”, which indicates that
the drive is in a STOP condition with a speed setpoint of 00.0 Hz.
2. Give the drive a START command. This can be done using one of several wiring methods described
in Section 11.0 - SM-Plus
™ CONTROL WIRING DIAGRAMS. Once the START command is
issued, the display will read “00.0”, indicating that the drive is in a RUN condition with a speed
setpoint of 00.0 Hz.
3. Use the ▲ button to increase the speed setpoint until the motor starts to rotate. The left decimal
point will light as the speed setpoint is increased. If the ▲ button is held down, the speed setpoint
will increase by tenths of Hz until the next whole Hz is reached, and then it will increase by one
Hz increments. Otherwise, each push of the button will increase the speed setpoint by a tenth of a
Hz.
4. If the motor is rotating in the wrong direction, give the drive a STOP command 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. This means that the drive
will operate with any phase sequence of the incoming three phase voltage. Therefore, to change the motor
rotation, the phases must be swapped at the drive output terminals or at the motor.