6 Troubleshooting
- 74 -
Fault Name
Operating
Panel
Display
Cause
Possible Solution
Overcurrent
during
deceleration
E 03.00
Ground fault or
short circuit exists in
the output circuit.
Check whether short-circuit occurs on the
motor, motor cable, or contactor.
The control mode
is SVC or FVC but
motor auto-tuning is
not performed.
Set the motor parameters according to the
motor nameplate and perform motor auto-
tuning.
Deceleration time is
too short.
Increase deceleration time.
The overcurrent
stall prevention
parameters are set
improperly.
Ensure that current limit is enabled (F3-19 = 1).
The setting of F3-18 (Current limit level) is too
large. Adjust it between 120% and 150%.
The setting of F3-20 (Current limit gain) is too
small. Adjust it between 20 and 40.
The braking unit and
braking resistor are
not installed.
Install the braking unit and braking resistor.
The drive
suffers external
interference.
View historical fault records. If the current
value is far from the overcurrent level, find the
interference source. If an external interference
does not exist, the drive board or hall device is
faulty.
