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5 Troubleshooting
VFD700 AC Drive Getting Started Guide 69
Trip Code
Trip Description
Possible Reasons
Corrective Actions
F009
IGBT junction over
heat
turn off the IGBTs, the
drive can be reset 1s
after the trip
Switching frequency is
high
Reduce the switching
frequency
Frequently accelerating
and decelerating under a
heavy load condition
Replace by a larger drive;
increase the accel and decel
times; enable the auto
adjusting function on
switching frequency
Internal fault
Contact service center
F010
Motor overload
Stop the drive
according to the stop
mode, turn off the
IGBTs, and the drive
can be reset 1s after
trouble removal
V/F is not right
Setup V/F and voltage boost
correctly
Supply voltage is low
Check the power supply and
cabling
Motor load is jammed or
the load change is
excessive
Check the motor load
The factor for motor
overload protecting
(P12.12) is set
incorrectly
Correct the factor (P12.12)
F011
Motor overheat
Stop the drive
according to the stop
mode, turn off the
IGBTs, and the drive
can be reset 1s after
trouble removal
Load is excessive
Check the load and current
Motor heat dissipation
channel is blocked
Check the motor
Motor fan is not working
Change the motor fan
Motor thermistor is
faulty
Check the thermistor
resistance and replace it
F012
AI1over current
Stop the drive
according to the stop
mode, turn off the
IGBTs, and the drive
can reset be 1s after
trouble removal
AI1 input current is over
26mA
Check AI1 input