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Chapter 5 Troubleshooting and Maintenance
5.1 Error display and remedy
5.1.1 Errors which can not be recovered manually
Display Error Cause Remedy
Program
problem
External noise interference
Connect a parallel RC burst
absorber across the magnetizing
coil of the magnetic contactor
that causes interference
EEPROM
problem
Faulty EEPROM Replace EEPROM
Voltage too
high during
stop
Detection circuit malfunction
Send the inverter back for
repairing
Voltage too low
during stop
1. Power voltage too low
2. Restraining resistor or fuse
burnt out.
3. Detection circuit
malfunctions
1. Check if the power voltage was
correct or not
2. Replace the restraining resistor
or the fuse
3. Send the inverter back for
repairing
The inverter
is overheated
during stop
1. Detection circuit
malfunctions
2. Ambient temperature too
high or bad ventilation
1. Send the inverter back for
repairing
2. Improve ventilation conditions
Current
Sensor
detecting
error
Current sensor error or
circuit malfunctions
Send the inverter back for
repairing
Note： “@” the Failure contact does not function.
CPF
-LV-
@
@
@
CTER
EPR
-OV-
-OH-
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