InverterFR-F800Verification pending — cross-check with the official manual
FR-F800 E.SOT — Motor Step Out
Trip — immediate stop
CAUSE
Why does it occur?
The inverter trips when the motor operation is not synchronized. (This function is only available under PM motor control.) Check that the PM motor is not driven overloaded. Check if a start command is given to the inverter while the PM motor is coasting. Check if a motor is connected under PM motor control. Check if a PM motor other than the MM-EFS/MM-THE4 series is driven.
REMEDY · Step by step
How to fix it?
- Set the acceleration time longer. Reduce the load. If the inverter restarts during coasting, set Pr
- 57 "Restart coasting time" ≠ "9999", and select the automatic restart after instantaneous power failure. Check the connection of the IPM motor. For a test run without connecting a motor, select the PM motor control test operation. (Refer to page 5-39.) Drive an IPM motor (MM-EFS/MM-THE4
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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