Motor Connections
Connect the three phase power leads of the AC motor to terminals M1, M2, and M3 of the inverter power terminal strip. The motor ground lead or case ground should be connected to the inverter chassis ground screw. The motor should be connected to the inverter at all times during inverter operation.
If additional motor overload protection is required, the use of suitably sized motor overload relays are recommended. Motor overload relays should be connected between the motor and inverter with the relay trip indicator circuit connected into the external inverter control circuitry to power down or trip the inverter in the event of motor overloading.
Caution: Overload relays with an automatic reset feature are not recommended in applications where an automatic restart of the motor could cause personal injury or harm. If manual reset relays are not available, then the automatic reset feature should be defeated.
If the motor is equipped with a normally closed thermostat, the thermostat should be connected at terminals MOL and CM of the control terminal strip. The inverter will also need to be programmed to trip if this thermostat circuit opens indicating a motor overload condition. The inverter will need to be programmed by adjusting parameter
If during initial motor start up the motor rotation is opposite to that desired, disconnect the input power from the inverter and wait at least 5 minutes for the bus voltage to bleed off.
Interchange any two of the three motor leads at the inverter power terminal strip M1, M2, and M3 to change the shaft rotation of the motor.
