LG SV-iS5 Instruction Manual page 190

Chapter 8 - Troubleshooting & Maintenance
Protective
Function
3) ADC Offset (current feedback circuit fault)
Communication 1) Faulty connection between inverter and keypad
Fault 2) Inverter CPU malfunction
Operating LOP (Loss of reference from the Option),
Method when the LOR (Remote)
Speed LOV (V1),
Reference is LOI (I),
Lost LOX (Sub-V2, ENC)
Inverter 1) Load is larger than inverter rating.
Overload 2) Incorrect inverter capacity selected.
M/C does not work properly.
M/C Fail
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Cause
184
Remedy
1) Check connector.
2) Exchange inverter.
Eliminate cause of fault .
1) Increase motor and/or inverter capacity .
2) Select correct inverter capacity .
Check the operating contact is closed after giving
signal.