InverterFR-A800Verified · sol.ls-electric.com
FR-A800 E.OV3 — Overvoltage at deceleration
Trip — immediate stop
CAUSE
Why does it occur?
DC link overvoltage from regenerative energy
REMEDY · Step by step
How to fix it?
Increase Pr.8 and add a braking resistor/braking unit
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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