Mitsubishi Electric FR-F720-55K Instruction Manual page 26

WIRING
CAUTION
Do not connect the parameter unit (FR-PU07, etc.) to the FR-A7NF communication connector.
Doing so will damage the option.
When performing wiring using the space between the inverter front cover and control circuit
terminal block, take care not to subject the cable to stress.
After wiring, wire offcuts must not be left in the inverter. They may cause an error, failure or
malfunction.
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