What to do if operation mode is not changed properly on Mitsubishi Electric FR-S520SE-0.4K Inverter?
- EElizabeth FlowersSep 2, 2025
If the operation mode is not changing correctly on your Mitsubishi Electric Inverter, ensure that the STF or STR signal is off. Check the Pr. 79 setting and make sure that the connector is fitted securely across terminals P-P1.