InverterS300Verification pending — cross-check with the official manual
S300 IPO — In Phase Open
Trip — immediate stop
CAUSE
Why does it occur?
- One of three phases input is open
- Operates when PRT-05 bit 2 is set to 1
REMEDY · Step by step
How to fix it?
- Check magnetic contactor on input side
- Check input wiring
- Replace DC condenser
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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