Chapter 13. Troubleshooting & Maintenance

Protective

Cause

Remedy

functions

 

 

 

z The terminal which is set to “18 (External

) Eliminate the cause of fault at circuit

 

fault-A)” or “19 (External fault-B)” in I20-I24

connected to external fault terminal or cause of

External fault A

in I/O group is ON.

external fault input.

 

 

 

contact input

 

 

External fault B

 

 

contact input

z No frequency command is applied to V1

) Check the wiring of V1 and I and frequency

 

 

and I.

reference level.

Operating

 

 

method when

 

 

the frequency

 

 

command is

 

 

lost

 

) Contact your local CERUS sales

 

 

 

 

representative.

Parameter save error Hardware fault Communication Error

 

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LG Electronics C Series manual Protective Cause Remedy Functions