ABB · ACS800 Standard Firmware
The drive output filter (choke) has an excessive temperature. This supervision function is typically used in step-up drives and indicates potential overheating due to restricted airflow, a faulty filter fan, or high ambient temperatures, risking damage to the filter components.
Click steps to track your progress.
Stop the drive and allow the unit to cool down completely.
Measure the ambient temperature around the drive enclosure to ensure it is within specified limits.
Verify that the filter fan rotates in the correct direction and that air flows freely through the filter and drive vents.