The User Manual of JAC200 Series General Frequency Converter
- 157 -
Fault Name
Display
Failure causes analysis
Failure handling measures
Overcurrent
during
deceleration
Err03
1 Grounding or short circuit exit in
the output circuit of frequency
converter
2. The control mode is vector and
parameter identification is not
conducted
3. Too short deceleration time
4. Relatively low voltage
5. Sudden load in the deceleration
process
6. No installing of brake unit or
brake resistance
1. Troubleshoot the external failure
2. Conduct the motor parameter
identification
3. Increase deceleration time
4. Adjust the voltage to the normal
range
5. Cancel sudden load
6. Install brake unit and resistance
Overcurrent
at constant
speed
Err04
1. Grounding or short circuit exit in
the output circuit of frequency
converter
2. The control mode is vector and
parameter identification is not
conducted
3. Relatively low voltage
4. Sudden load exist in the running
5. Relatively small model selection
for
1. Troubleshoot external failure
2. Conduct the motor parameter
identification
3. Adjust the voltage to the normal
range
4. Cancel sudden load
5. Choose frequency converter with
higher power level
Overvoltage
during
acceleration
Err05
1. Relatively high input voltage
2. External force dragging motor
running exist in the acceleration
process
3. Too short acceleration time
4. No installing of brake unit and
brake resistance
1. Adjust the voltage to the normal
range
2. Cancel the external force or install
brake resistance
3. Increase acceleration time
4. Install brake unit and resistance
Overvoltage
during
deceleration
Err06
1. Relatively high input pressure
2. The external force dragging
motor
running
exists
in
the
deceleration process
3. Too short deceleration time
4. No installing brake unit and brake
resistance
1. Adjust the voltage to the normal
range
2. Cancel the external force or install
brake resistance
3. Increase deceleration time
4. Install brake unit and resistance
Overvoltage
at constant
speed
Err07
1. Relatively high input pressure
2. The external force dragging
motor running exists in running
1. Adjust the voltage to the normal
range
2. Cancel the external force or install
brake resistance
