Inovance MD500 Drive

Inovance MD500 Drive Fault Codes:

Fault CodesCause & Solution
Err02
Overcurrent
during
acceleration		Cause & Solution:

1. Ground fault or short circuit exists in the output circuit.
– Check whether short-circuit occurs on the motor, the motor cable or contactor.
2. Acceleration time is too short.
– Increase acceleration time.
3. Customized torque boost or V/F curve is not appropriate.
– Adjust the customized torque boost or V/F curve.
4. The voltage is too low.
– Adjust the voltage to normal range.
5. The spinning motor is started.
– Enable the catching a spinning motor function or start the motor after it stops.
6. A load is applied suddenly during acceleration.
– Cancel the suddenly added load.
7. The rated AC drive power is low.
– Replace the drive by one with higher rated power.
8. The braking resistor resistance is small.
– The braking resistor is short circuited.
– Replace a new braking resistor.
Err03
Overcurrent
during
deceleration		Cause & Solution:

1. Ground fault or short circuit exists in the output circuit.
– Check whether short-circuit occurs on motor, motor cable or contactor.

2. Acceleration time is too short.
– Increase acceleration time.

3. The voltage is too low.
– Adjust the voltage to normal range.

4. A load is added suddenly during deceleration.
– Cancel the suddenly added load.

5. Braking unit and braking resistor are not installed.
– Install the braking unit and braking resistor.

6. The braking resistor resistance is small or the braking resistor is short circuited.
– Replace a new braking resistor.
Err04
Overcurrent
at constant
speed		Cause & Solution:

1. Ground fault or short circuit exists in the output circuit.
– Check whether short-circuit occurs on the motor, motor cable or contactor

2. The voltage is too low.
– Adjust the voltage to normal range.

3. A load is added suddenly during running.
– Cancel the suddenly added load.

4. The rated AC drive power is low.
– Replace the drive by one with higher rated power.

5. The braking resistor resistance is small or the braking resistor is short circuited.
– Replace a new braking resistor.
Err05
Overvoltage
during
acceleration		Cause & Solution:

1. Input voltage is too high.
– Adjust input voltage to normal range.

2. An external force drives motor during acceleration.
– Cancel the external force.

3. Braking unit and braking resistor are not installed.
– Install the braking unit and braking resistor.

4. Acceleration time is too short.
– Increase acceleration time.
Err06
Overvoltage
during
deceleration		Cause & Solution:

1. Input voltage is too high.
– Adjust input voltage to normal range.

2. An external force drives motor during deceleration.
– Cancel the external force or install the braking resistor.

3. Deceleration time is too short.
– Increase deceleration time.

4. Braking unit and braking resistor are not installed.
– Install the braking unit and braking resistor.
Err07
Overvoltage
at constant
speed		Cause & Solution:

1. Input voltage is too high.
– Adjust input voltage to normal range.

2. An external force drives motor during running.
– Cancel the external force or install a braking resistor.
Err08
Pre-charge
resistor
fault		Cause: Bus voltage fluctuates around undervoltage threshold continuously

Solution: There is an hardware or software issue in drive. Need to repair or replace drive.
Err09
Undervoltage		Cause & Solution:

1. An instantaneous power failure occurs.
– Reset the fault

2. The AC drive’s input voltage is not within the permissible range.
– Adjust the voltage to normal range.

3. The bus voltage is abnormal.
– Replace the AC drive.

4. The rectifier bridge, the pre-charge resistor, the drive board or the control board are abnormal.
– Replace the AC drive.
Err10
Drive
overload		Cause & Solution:

1. The load is too heavy or locked-rotor occurs on the motor.
– Reduce the load or check motor and mechanical conditions.

2. The rated AC drive power is low.
– Replace the drive by one with higher rated power.
Err11
Motor
overload		Cause & Solution:

1. F9-01 (Motor overload protection gain) is set improperly.
– Set F9-01 correctly.

2. The load is too heavy or locked-rotor occurs on the motor.
– Reduce the load or check motor and mechanical conditions.

3. The rated AC drive power is low.
– Replace the drive by one with higher rated power.
Err12
Input phase
loss		Cause & Solution:

1. Three phase input is abnormal.
– Eliminate faults in external circuitry

2. Drive board is abnormal.
– Eliminate faults in external circuitry

3. Lightning protection board is abnormal.
– There is an hardware or software issue in drive. Need to repair or replace drive.


4. Control board is abnormal.
– There is an hardware or software issue in drive. Need to repair or replace drive.
Err13
Output phase
loss		Cause & Solution:

1. Motor winding is damaged. Check resistance between motor cables.
– Replace motor is winding is damaged.

2. The cable connecting the AC drive and the motor is abnormal.
– Check for wiring errors and ensure the output cable is connected properly

3. The AC drive’s three-phase outputs are unbalanced when the motor is running.
– Check whether the motor three-phase winding is normal.

4. The drive board or the IGBT is abnormal.
– Replace the AC drive.
Err14
IGBT
overheat		Cause & Solution:

1. The ambient temperature is too high.
– Lower the ambient temperature.

2. The ventilation is clogged.
– Clean the ventilation.

3. The fan is damaged.
– Replace the cooling fan.

4. The thermally sensitive resistor of IGBT is damaged.
– Replace the AC drive.

5. The AC drive IGBT is damaged.
– Replace the AC drive.
Err15
External
equipment
fault		Cause & Solution:

1. External fault signal is input via DI.
– Confirm that the mechanical condition allows restart (F8-18) and reset the operation.

2. External fault signal is input via virtual I/O.
– Confirm that the virtual I/O parameters in group A1 are set correctly and reset the operation.
Err16
Communication
fault		Cause & Solution:

1. The host controller is in abnormal state.
– Check the cable of the host controller.

2. Communication cable is abnormal.
– Check the communication cables.

3. Communication parameters in group Fd are set improperly.
– Set communication parameters in group Fd properly.

4. After all the preceding checkings are done but the fault still exists, restore the default settings.
Err17
Contactor
fault		Cause & Solution:

1. Drive board and power supply are abnormal.
– Replace drive board or power supply board.

2. Contactor is abnormal.
– Replace contactor.

3. The lightning protection board is abnormal.
– Replace the lightning protection board.
Err18
Current
detection
fault		Cause: The drive board is abnormal.

Solution: There is an hardware or software issue in drive. Need to repair or replace drive.
Err19
Motor
auto-tuning
fault		Cause & Solution:

1. Motor parameters are not set according to nameplate.
– Set motor parameters correctly according to nameplate.

2. Motor auto-tuning times out.
– Check the cable connecting AC drive and motor.

3. The encoder is abnormal.
– Check whether F1-27 (encoder pulses per revolution) is set correctly.
– Check whether signal lines of encoder are connected correctly and securely.
Err20
Encoder
fault		Cause & Solution:

1. Encoder is not matched.
– Set the type of encoder correctly.

2. Encoder wiring is incorrect.
Check the PG card power supply and phase sequence.

3. Encoder is damaged.
– Replace encoder.

4. PG card is abnormal.
– Replace PG card.
Err21
EEPROM read-
write fault 		Cause: EEPROM chip is damaged.

Solution: Replace the AC drive.
Err23
Short
circuit to
ground		Cause & Solution:

1. The motor is short circuited to the ground.
– Replace cable or motor.

2. The upper IGBT is damaged.
– There is an hardware or software issue in drive. Need to repair or replace drive.
Err26
Accumulative
running time
reached		Cause: Accumulative running time reaches the setting value.

Solution: Clear the record through parameter initialization.
Err27
User-defined
fault 1 		Cause: User-defined fault 1 is input via DI.

Solution: Reset the operation.
Err28
User-defined
fault 2 		Cause: User-defined fault 2 is input via DI.

Solution: Reset the operation.
Err29
Accumulative
power-on
time reached		Cause: Accumulative power-on time reaches the setting value.

Solution: Clear the record through parameter initialization.
Err30
Off load
fault		Cause: The output current of AC drive is smaller than F9-64 (load loss detection level).

Solution: Check whether the load is disconnected or the setting of F9-64 and F9-65 (load lost detection time) satisfies actual running conditions.
Err31
PID
feedback
lost
during
running		Cause: PID feedback is smaller than the setting value of FA-26 (detection level of PID feedback loss).

Solution: Check PID feedback or set FA-26 properly.
Err40
Pulse-by-
pulse
current limit
fault		Cause & Solution:

1. The load is too heavy or locked-rotor occurs on the motor.
– Reduce the load or check motor and mechanical conditions.

2. The rated AC drive power is low.
– Replace the drive by one with higher rated power.
Err41
Motor
switchover
fault during
running		Cause: Motor switchover via terminal during drive running of the AC drive.

Solution: Perform motor switchover after the AC drive stops.
Err42
Speed error		Cause & Solution:

1. Encoder parameters are set improperly.
– Set encoder parameters properly.

2. Motor auto-tuning is not performed.
– Perform motor auto-tuning.

3. F9-69 (detection level of speed error) and F9-70 (detection time of speed error) are set oncorrectly.
– Set F9-69 and F9-70 correctly based on actual condition.
Err43
Motor
overspeed		Cause & Solution:

1. Encoder parameters are set improperly.
– Set encoder parameters properly.

2. Motor auto-tuning is not performed.
– Perform motor auto-tuning.

3. F9-67 (Overspeed detection level) and F9-68 (Overspeed detection time) are set incorrectly.
– Set F9-67 and F9-68 correctly based on the actual situation.
Err45
Motor
overtemperature		Cause & Solution:

1. Cable connection of temperature sensor becomes loose
– Check cable connection of temperature sensor.

2. The motor temperature is too high.
– Decrease carrier frequency or take other measures to cool the motor.
Err61
Braking
unit
overload		Cause: Resistance of braking resistor is too small.

Solution: Replace a braking resistor of larger resistance.
Err62
Short-circuit
of braking
circuit		Cause: Braking IGBT is abnormal.

Solution: There is an hardware or software issue in drive. Need to repair or replace drive.
HC FaultCause & Solution:

1. The cable between the drive board and control board is in poor contact.
– Re-connect the 4-pin cable and 28-pin cable.

2. The control board is damaged.
– Replace the AC drive.

3. The motor or motor cable is short circuited to ground.
– Check whether short-circuit occurs on motor, motor cable or contactor.

4. The mains voltage is too low.
– Check the power supply.