LG C Series - Manual (Page 120)

Chapter 13. Troubleshooting & Maintenance
Protective
functions
Cause Remedy
External fault A
contact input
External fault B
contact input
z The terminal which is set to “18 (External
fault-A)” or “19 (External fault-B)” in I20-I24
in I/O group is ON.
)
Eliminate the cause of fault at circuit
connected to external fault terminal or cause of
external fault input.
Operating
method when
the frequency
command is
lost
z No frequency command is applied to V1
and I.
)
Check the wiring of V1 and I and frequency
reference level.
Parameter save error Hardware fault Communication Error
)
Contact your local CERUS sales
representative.
120