Mitsubishi Electric FR-E700 Instruction Manual page 74

Connection of stand-alone option units
Example
As shown below, always use the start signal (ON or OFF across terminals STF or STR-PC) to make a
start or stop. (Refer to section 6.10.4.)
Fig. 3-30: Example for connection of an inverter
When the power supply is 400 V class, install a step-down transformer.
Handling of the inverter output side magnetic contactor
Switch the magnetic contactor between the inverter and motor only when both the inverter and mo-
tor are at a stop. When the magnetic contactor is turned on while the inverter is operating, overcur-
rent protection of the inverter and such will activate. When an MC is provided for switching to the
commercial power supply, for example, switch it on/off after the inverter and motor have stopped.
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Power
supply
Operation preparation
OFF ON
Start/Stop Operation
Start
Stop
Inverter
T
Wiring
To the
motor
I001922E