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Trouble shooting and Solutions
5
Trouble shooting and Solutions
5.1 Fault Codes and Solutions
Troubleshoot the faults occurred during operating the AC drive as follows.
Display
Fault Name
Possible Causes
Solutions
Err02
Overcurrent
during
acceleration
1. The output circuit is short circuited.
2. The acceleration time is too short.
3. Manual torque boost or V/F curve is
not appropriate.
4. The power supply is too low.
5. The startup operation is performed
on the rotating motor.
6. A sudden load is added during
acceleration.
7. The AC drive model is of too small
power class.
1. Eliminate short circuit.
2. Increase the acceleration time
F0-17.
3.Adjust the manual torque boost
or V/F curve.
4. Check that the power supply is
normal.
5. Select speed tracking restart or
start the motor after it stops.
6. Remove the added load.
7. Select a drive of higher power
class.
Err03
Overcurrent
during
deceleration
1. The output circuit is short circuited.
2. The deceleration time is too short.
3. The power supply is too low.
4. A sudden load is added during
deceleration.
5. The braking resistor is not installed.
1. Eliminate short circuit.
2. Increase the deceleration
timeF0-18.
3. Check the power supply, and
ensure it is normal.
4. Remove the added load.
5. Install the braking resistor.
Err04 Overcurrent at
constant speed
1. The output circuit is short circuited.
2. The power supply is too low.
3. A sudden load is added during
operation.
4. The AC drive model is of too small
power class.
1. Eliminate short circuit.
2. Adjust power supply to normal
range.
3. Remove the added load.
4. Select a drive of higher power
class.
Err05
Overvoltage
during
acceleration
1. The DC bus voltage is too high
☆
.
2. An external force drives the motor
during acceleration.
3. The acceleration time is too short.
4. The braking resistor is not installed.
1. Replace with a proper braking
resistor.
2. Cancel the external force or
install braking resistor.
3. Increase the acceleration time.
4. Install a braking resistor.
Err06
Overvoltage
during
deceleration
1. The DC bus voltage is too high
☆
.
2. An external force drives the motor
during deceleration.
3. The deceleration time is too short.
4. The braking resistor is not installed.
1. Replace with a proper braking
resistor.
2. Cancel the external force or
install braking resistor.
3. Increase the deceleration time.
4. Install the braking resistor.
