A582 Auxiliary Fan Missing Warning in ABB ACS880 Drive

A582 Auxiliary Fan Missing Warning in ABB ACS880 Drive indicates that an auxiliary cooling fan connected to the control unit fan connector is either disconnected, stuck, or not operating correctly. The drive monitors the status of auxiliary cooling fans and generates this warning when fan operation cannot be detected.

Proper operation of auxiliary fans is essential for maintaining adequate cooling of the drive and preventing overheating of internal components.

Possible Causes:

  1. Auxiliary fan disconnected.
  2. Auxiliary fan mechanically stuck.
  3. Faulty auxiliary fan motor.
  4. Loose fan wiring or connector.
  5. Damaged fan cable.
  6. Fan connector not properly seated on the control unit.
  7. Front cover removed or not tightened correctly.
  8. Fan power supply issue.
  9. Defective fan monitoring circuit.
  10. Failed auxiliary cooling fan.

Solutions:

  1. Check the auxiliary fan and verify that it is rotating freely.
  2. Inspect the fan connection to the control unit.
  3. Check fan wiring and connectors for damage or loose connections.
  4. Verify that the auxiliary fan receives the correct supply voltage.
  5. Replace the auxiliary fan if it is defective.
  6. Ensure the fan cable is properly connected.
  7. Make sure the front cover of the drive module is installed correctly and tightened securely.
  8. If commissioning is being performed with the front cover removed, be aware that this warning may occur even if the corresponding fault is disabled.
  9. Inspect the fan monitoring circuitry if the warning persists.
  10. Restart the drive after corrective actions and verify that the warning clears.

Auxiliary Code Interpretation

The auxiliary code identifies which fan has generated the warning:

Auxiliary CodeFan Identification
1Auxiliary Fan 1
2Auxiliary Fan 2

Examples

  • Auxiliary Code = 1 → Auxiliary Fan 1 is disconnected, stuck, or faulty.
  • Auxiliary Code = 2 → Auxiliary Fan 2 is disconnected, stuck, or faulty.

Additional Information

The auxiliary cooling fans help maintain proper airflow through the drive module and control electronics. If a fan stops operating:

  • Internal temperatures may rise.
  • Cooling efficiency is reduced.
  • Power component temperatures increase.
  • Drive reliability may be affected.

If the problem continues, the warning may eventually lead to:

5081 – Auxiliary Fan Broken Fault

Recommended Troubleshooting Sequence

  1. Read the auxiliary code to identify the affected fan.
  2. Inspect the fan for physical obstruction.
  3. Check fan operation.
  4. Verify wiring and connector integrity.
  5. Confirm the drive front cover is correctly installed.
  6. Replace the faulty fan if necessary.
  7. Restart the drive and monitor fan status.

Related Fault

Fault CodeDescription
5081Auxiliary Fan Broken

Preventive Maintenance Tips

  • Inspect auxiliary fans regularly.
  • Clean dust from fan blades and air passages.
  • Replace aging or noisy fans during preventive maintenance.
  • Ensure all fan connectors remain secure.
  • Keep drive covers properly installed.

Regular inspection and maintenance of auxiliary cooling fans will help prevent recurring A582 Auxiliary Fan Missing Warnings and ensure reliable cooling performance in ABB ACS880 drives.

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