CHOKE OTEMP
ABB · ACS800
What does FF82 mean?
The temperature of the drive output filter (choke) in the ABB ACS800 (step-up drives) is excessive. This supervision indicates potential overheating of the filter components, which can lead to reduced lifespan, degraded performance, or failure of the output filter.
Common Causes
- High ambient temperature around the drive or within the drive enclosure.
- Restricted airflow to or from the output filter due to blockages or debris accumulation.
- Malfunction of the filter cooling fan (if present and monitored) preventing adequate heat dissipation.
- Excessive harmonic content in the output current causing increased losses and heat in the choke.
Repair Steps & Checklist
Click steps to track your progress.
- 1
Stop the ABB ACS800 drive and allow the output filter to cool down to ambient temperature.
- 2
Check the ambient temperature around the drive enclosure and ensure it is within the specified operating limits.
- 3
Verify that the filter fan (if present) rotates in the correct direction and that air flows freely through the filter assembly. Clean any dust or debris from heatsinks and vents.
- 4
Ensure that the drive's cooling system (fans, heatsinks, air ducts) for the output filter section is clean and unobstructed.
- 5
Evaluate the motor and cable for conditions that could lead to excessive current or harmonics, such as long unshielded motor cables or misaligned motor parameters.