69
Fault
code
Display
code
Fault description
Possible reasons
Actions
F.Ed
Emergency stop
or external
equipment fails
Press STOP key when
operating at non-keypad mode
Check the present
operating mode
Press STOP when the inverter
is in stall status
Set the operating
parameters correctly
The inverter will report F.Ed
fault if it is in stall status for 1
minute
Set the operating
parameters correctly
Terminal used for stopping the
inverter in an emergency is
closed
Disconnect the terminal
if the external fault is
cleared
F.EEP
EEPROM R/W
fault
R/W fault of control
parameters
Press STOP/RESET to
reset
F.485
RS485
communication
failure
Wrong baud rate setting
Set the baud rate
correctly
Serial port communication
error
Press STOP/RESET to
reset
，
Seek service
Improper setting of alarm
conditions
Modify FP.02
、
FP.03
and FFL.12
Host FC does not work
Check whether the host
FC is working or not;
Check the wiring
F.Con
Reserved Reserved
Reserved
F.Ct
Current detection
circuit is faulty
Wires or connectors of control
board are loose
Check and re-wire
Auxiliary power supply is
damaged
Seek service
Current detection circuit fault Seek service
F.CPU
System
disturbance
Severe disturbance from
outside
Press STOP/RESET to
reset or install power
filter at the input side of
the inverter.
DSP control board read and
write error
Press STOP/RESET to
reset
Seek service
