Mitsubishi Electric FR-A700 Instruction Manual page 683

Parameter
When the motor is operated at 50Hz (or 60Hz), more efficient operation can be performed by the
commercial power supply than by the inverter. When the motor cannot be stopped for a long
time for the maintenance/inspection of the inverter, it is recommended to provide the commer-
cial power supply circuit.
To switch between inverter operation and bypass operation, an interlock must be provided to
stop the motor once and then start it by the inverter in order to prevent the inverter from resulting
in an overcurrent alarm. Using the electronic bypass sequence function that outputs the timing
signal for operation of the magnetic contactor, a complicated commercial power supply switch-
over interlock can be provided by the inverter.
NOTE
Commercial operation can not be performed with the Mitsubishi vector motor (SF-V5RU).
FR-A700 EC
Special operation
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