InverterFR-E800Verification pending — cross-check with the official manual
FR-E800 E.OC2 — E.OC2
Trip — immediate stop
CAUSE
Why does it occur?
- When the inverter output current reaches or exceeds approximately 230%*2 of the rated current during constant- speed operation, the protection circuit is activated and the inverter output is shut off. • Check for sudden load change. • Check for output short-circuit. • Check if the stall prevention operation level is set too high
- Check if the fast-response current limit operation is disabled. • Ch
REMEDY · Step by step
How to fix it?
- • Keep the load stable. • Check the wiring to make sure that output short circuit does not occur. • Lower the stall prevention operation level
- Activate the fast-response current limit operation. • Prevent the motor from switching the rotation direction from forward to reverse (or from reverse to forward) during torque control under Real sensorless vector control. • Choose inverter and motor capac
Do not reset repeatedly before identifying the cause. Repeated resets while ignoring a trip/alarm can cause secondary damage (IGBT failure, motor winding damage, etc.).
SOURCE
Related manual page
Summary based on the official Mitsubishi Electric manual. For accurate and complete information, always consult the official manual.