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5 Troubleshooting
68VFD700 AC Drive Getting Started Guide
Trip Code
Trip Description
Possible Reasons
Corrective Actions
F004
Input phase loss
Stop the drive
according to the stop
mode, turn off the
IGBTs, the drive can
be reset 1s after
trouble removal
Power supply phase loss
Check the power supply and
cabling
F005
Output phase loss
Stop the drive
according to the stop
mode, turn off the
IGBTs, the drive can
be reset 1s after
trouble removal
Output phase loss
Check the output voltage
and motor cabling
Internal fault
Contact service center
F006
Brake unit short circuit
Turn off the IGBTs,
the drive can be reset
10s after trouble
removal
Brake resistor trouble
Check the brake resistance
and the cabling
Internal fault
Contact service center
F007
Heatsink1 over heat,
turn off the IGBTs, the
drive can be reset 1s
after trouble removal
Environmental
temperature is high
Reduce the environmental
temperature
Air flow channel
blocked
Clean the air flow channel
Fan failed
Replace the fan
Internal fault
Contact service center
F008
Heatsink2 over
heat(45KW and over),
turn off the IGBTs, the
drive can be reset 1s
after trouble removal
Environment
temperature is high
Reduce the environmental
temperature
Air flow channel
blocked
Clean the air flow channel
Fan failed
Replace the fan
Internal fault
Contact service center