InverterS300Verification pending — cross-check with the official manual
S300 Mechanical Brake — Mechanical Brake
Trip — immediate stop
CAUSE
Why does it occur?
Occurs when the mechanical brake release/engage sequence is not completed within the parameter-set time (MBR-related codes).
REMEDY · Step by step
How to fix it?
Check and adjust the mechanical brake sequence parameters (MBR-related codes).
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
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