InverterS300Verification pending — cross-check with the official manual
S300 Lost Option Comm — Lost Option Comm
Trip — immediate stop
CAUSE
Why does it occur?
A trip signal generated when there is a fault in the communication of the communication option board.
REMEDY · Step by step
How to fix it?
- Turn off the power, remove the communication option card, reinstall it, and turn the power on
- If the same trip recurs, inspection of the communication option card or the inverter contact area is required
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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