2310 Overcurrent Fault in ABB ACS560 Drive

2310 Overcurrent in the ABB ACS560 Drive indicates that the output current has exceeded the drive's internal protection limit. The ACS560 continuously monitors the inverter output current to protect the IGBT power module and other internal components. When the output current rises above the allowable limit, the drive generates Fault 2310 and immediately stops the motor to prevent damage.

In addition to an actual overcurrent condition, Fault 2310 may also be caused by an earth fault or supply phase loss.

Possible Causes

Motor overload.
Excessive acceleration or deceleration.
Incorrect acceleration time settings.
Incorrect speed, frequency, or torque scaling.
Incorrect motor parameter settings.
Motor cable short circuit.
Motor winding fault.
Earth fault in the motor or motor cable.
Supply phase loss.
Incorrect motor phasing.
Incorrect star/delta motor connection.
Contactors opening or closing in the motor cable while the drive is running.
Power factor correction capacitors connected to the motor cable.
Surge absorbers connected to the motor cable.
Damaged motor cable insulation.
Internal inverter hardware fault (less common).

Solutions

Check the motor load for overload conditions.
Check the acceleration times in:
- Parameter Group 23 – Speed reference ramp (Speed Control)
- Parameter Group 26 – Torque reference chain (Torque Control)
- Parameter Group 28 – Frequency reference chain (Frequency Control)
Verify the scaling parameters:
- 46.01 – Speed scaling
- 46.02 – Frequency scaling
- 46.03 – Torque scaling
Check the motor and motor cable, including correct phasing and star/delta connection.
Ensure there are no contactors opening or closing in the motor cable while the drive is running.
Verify that the motor data in Parameter Group 99 matches the motor nameplate.
Ensure there are no power factor correction capacitors or surge absorbers connected to the motor cable.
Check for an earth fault by measuring the insulation resistance of the motor and motor cable.
Repair or replace faulty wiring or the motor if insulation is defective.
Reset the fault and restart the drive after correcting the problem.

Additional Information

The ABB ACS560 continuously monitors the inverter output current to protect the drive against excessive current conditions.

Fault 2310 Overcurrent is generated when the measured output current exceeds the drive's internal fault limit.

According to ABB, this fault may be caused not only by an actual overcurrent but also by:

Earth fault.
Supply phase loss.

The recommended corrective actions are to:

Check the motor load.
Verify acceleration ramp settings.
Check scaling parameters.
Inspect the motor and motor cable.
Verify motor data.
Measure insulation resistance.

Unlike a Motor Overload Fault, 2310 Overcurrent is generally an instantaneous protection trip intended to protect the inverter power stage from excessive current.

Common Symptoms

Drive displays 2310 Overcurrent.
Motor trips during startup or acceleration.
Motor stops unexpectedly while running.
High output current before the trip.
Fault occurs under heavy load.
Immediate trip after a RUN command.
Drive may also indicate an earth fault condition.
Motor fails to reach operating speed.
Repeated trips after reset.
Drive remains inhibited until the fault is cleared.

Recommended Troubleshooting Sequence

Verify that the fault is 2310 Overcurrent.
Disconnect power and follow lockout/tagout procedures.
Check the motor load for mechanical overload.
Verify acceleration settings in Parameter Groups 23, 26, or 28.
Check scaling parameters 46.01, 46.02, and 46.03.
Inspect the motor cable and motor wiring.
Verify correct motor phasing and star/delta connection.
Ensure no contactors operate in the motor cable during drive operation.
Check Parameter Group 99 – Motor Data against the motor nameplate.
Ensure no power factor correction capacitors or surge absorbers are connected to the drive output.
Measure insulation resistance to check for earth faults.
Restore power and reset the fault.
Test the drive under normal operating conditions.
Monitor output current during operation.
Contact ABB technical support if the fault persists.

2310 Overcurrent Check Table

Check Point	Action
Motor load	Check for overload
Parameter Groups 23, 26, 28	Verify acceleration and reference ramp settings
Parameters 46.01–46.03	Check speed, frequency, and torque scaling
Motor data (Group 99)	Verify against the motor nameplate
Motor wiring	Check phasing and star/delta connection
Motor cable	Inspect for damage or short circuits
Contactors	Ensure none operate in the motor cable during drive operation
Power factor correction capacitors	Ensure none are connected to the motor cable
Surge absorbers	Ensure none are connected to the motor cable
Earth fault	Measure insulation resistance of the motor and cable

Preventive Maintenance Tips

Inspect motor cables regularly for insulation damage.
Measure motor insulation resistance during scheduled maintenance.
Verify motor parameters after commissioning or motor replacement.
Use appropriate acceleration times for the application.
Avoid operating contactors between the drive and motor while the drive is running.
Do not install power factor correction capacitors or surge absorbers on the drive output.
Maintain proper motor loading within the drive's rated capacity.
Periodically inspect terminal connections for tightness.
Record recurring 2310 Overcurrent faults to identify developing electrical or mechanical problems.
Follow ABB preventive maintenance recommendations for the ACS560.

Proper inspection of the motor load, acceleration settings, scaling parameters, motor data, motor cable, phasing, earth insulation, and ensuring that no contactors, power factor correction capacitors, or surge absorbers are connected to the drive output will help prevent recurring 2310 Overcurrent faults in ABB ACS560 drives, ensuring reliable inverter protection, safe motor operation, and long-term system performance.

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