3210 DC Link Overvoltage Fault in ABB ACS880 Drive

3210 DC Link Overvoltage Fault in ABB ACS880 Drive indicates that the intermediate DC bus voltage has exceeded the maximum allowable limit. This typically occurs when energy generated by the motor during deceleration or overhauling load conditions is fed back into the drive, causing the DC link voltage to rise excessively.

3210 DC Link Overvoltage Fault in ABB ACS880 Drive


To protect the drive's power components, the ACS880 trips with 3210 DC Link Overvoltage Fault.

Possible Causes

  1. Deceleration time too short.
  2. Regenerative energy from the motor during stopping.
  3. Overhauling load (e.g., crane, hoist, centrifuge, large fan).
  4. Brake chopper failure.
  5. Brake resistor disconnected or damaged.
  6. Overvoltage control disabled.
  7. Supply voltage higher than the drive rating.
  8. Transient overvoltage on the power line.
  9. Incorrect supply voltage setting.
  10. Regenerated energy exceeds braking capacity.
  11. Improperly sized brake resistor.
  12. Faulty brake chopper circuit.

Solutions

  1. Check that:

    30.30 – Overvoltage Control

    is enabled.

  2. Verify that the incoming supply voltage matches the drive's nominal voltage rating.
  3. Check the power supply for static or transient overvoltage conditions.
  4. Inspect the brake chopper operation (if installed).
  5. Check the brake resistor for:
    • Correct resistance value
    • Proper connection
    • Physical damage
  6. Increase the motor deceleration time.
  7. Use Coast-to-Stop mode if the application permits.
  8. Verify brake resistor sizing according to the application requirements.
  9. Install a brake chopper and brake resistor if regenerative energy is significant.
  10. Check for overhauling load conditions.
  11. Inspect the braking circuit wiring.
  12. Measure actual DC link voltage during operation.

Relevant Parameter

ParameterDescription
30.30Overvoltage Control

Additional Information

The ACS880 converts incoming AC power into DC voltage stored in the DC link capacitor bank.

During deceleration:

  • The motor acts as a generator.
  • Energy flows back into the DC link.
  • DC bus voltage rises.

If the excess energy cannot be dissipated:

  • Through a brake resistor
  • Through an active front end
  • By extending the deceleration time

the DC link voltage exceeds its safe limit and the drive trips with 3210 DC Link Overvoltage Fault.

Common Symptoms

  • Fault occurs during stopping.
  • Fault appears during rapid deceleration.
  • Fault occurs with vertical loads.
  • DC voltage rises sharply during braking.
  • Repeated trips during emergency stop.
  • Brake resistor overheating.

Recommended Troubleshooting Sequence

  1. Check 30.30 Overvoltage Control.
  2. Monitor DC bus voltage.
  3. Increase deceleration time.
  4. Verify brake resistor connection and condition.
  5. Check brake chopper operation.
  6. Measure incoming supply voltage.
  7. Inspect for regenerative load conditions.
  8. Use coast-to-stop if acceptable.
  9. Install or upgrade braking components if required.

Typical Applications Prone to This Fault

  • Cranes
  • Hoists
  • Elevators
  • Centrifuges
  • High-inertia conveyors
  • Large fans
  • Winders and unwinders

Related Faults and Warnings

CodeDescription
3210DC Link Overvoltage Fault
3220DC Link Undervoltage Fault
A3A1DC Link Overvoltage Warning
7191Brake Chopper Short Circuit Fault
A791Brake Resistor Warning
A794Brake Resistor Data Warning

Preventive Maintenance Tips

  • Use adequate deceleration times.
  • Periodically inspect brake resistors.
  • Verify brake chopper operation.
  • Monitor supply voltage quality.
  • Ensure braking components are correctly sized.
  • Keep braking circuit terminals tight and secure.

Proper configuration of 30.30 Overvoltage Control, correct braking hardware, and suitable deceleration settings will help prevent recurring 3210 DC Link Overvoltage Faults in ABB ACS880 drives.

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