InverterS300Verification pending — cross-check with the official manual
S300 OVt — Over Voltage
Trip — immediate stop
CAUSE
Why does it occur?
DC voltage of main circuit increases higher than 400V (200V class) or 820V (400V class) during deceleration.
REMEDY · Step by step
How to fix it?
- Check input voltage
- Increase deceleration time
- Use 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
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