InverterS300Verification pending — cross-check with the official manual
S300 Lost USB — Lost USB
Trip — immediate stop
CAUSE
Why does it occur?
- A trip signal generated when communication via the USB connector is not established
- It operates when the PRT-19 (Lost USB Mode) code is set to a value other than 0
REMEDY · Step by step
How to fix it?
- Check whether the PRT-19 (Lost USB Mode) code is set to a value other than 0, then turn off the power, remove the USB, reinstall it, and turn the power on
- If the same trip recurs, check the USB connection and cable
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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