InverterS300Verification pending — cross-check with the official manual
S300 LKP — Lost Keypad
Trip — immediate stop· AUTO-RESET
CAUSE
Why does it occur?
Keypad communication lost.
REMEDY · Step by step
How to fix it?
Check keypad connection.
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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