CTRL B TEMP
ABB · ACS800
What does 4110 mean?
The ABB ACS800 control board temperature has exceeded 88°C, indicating an overheating condition of the drive's sensitive control electronics. Sustained high temperatures (3.06 FW 2 bit 7) can lead to unreliable operation, premature component aging, or permanent damage to the control board.
Common Causes
- High ambient temperature around the drive or within the electrical cabinet.
- Insufficient or blocked airflow to the control board or its cooling components.
- Malfunction of the main or any additional cooling fans within the drive chassis.
- Accumulation of dust or debris on the control board or its heatsinks, impeding heat dissipation.
Repair Steps & Checklist
Click steps to track your progress.
- 1
Check the ambient conditions and ensure the temperature inside the drive enclosure is within the ABB ACS800 drive's specified operating range.
- 2
Inspect all cooling fans (main and additional) for proper operation, ensuring they rotate freely and in the correct direction; clean if dusty.
- 3
Verify that air inlets and outlets on the drive and the electrical cabinet are clear of obstructions and dust accumulation.
- 4
Clean any dust or debris from the control board and its associated heatsinks using dry, compressed air, ensuring no residue is left.
- 5
Ensure proper ventilation of the electrical cabinet where the drive is installed, potentially by checking cabinet fans or filters.