InverterFR-F800Verification pending — cross-check with the official manual
FR-F800 E.OP1 — Option1 Fault
Trip — immediate stop
CAUSE
Why does it occur?
The inverter trips if a communication line error occurs in the communication option. Check for an incorrect option function setting and operation. Check that the plug-in option is plugged into the connector properly. Check for a break in the communication cable. Check that the terminating resistor is fitted properly.
REMEDY · Step by step
How to fix it?
Check the option function setting, etc. Connect the plug-in option securely. Check the connection of communication cable.
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.
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