InverterFR-A800Verified · sol.ls-electric.com
FR-A800 E.MB1 — Brake sequence error
Trip — immediate stop
CAUSE
Why does it occur?
Brake open/release sequence timing violated
REMEDY · Step by step
How to fix it?
Readjust brake sequence parameters Pr.278 to Pr.285
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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