Cooling

What does F60 mean?

For liquid-cooled units, this protection detects a failure in the cooling liquid circulation, typically via an external sensor connected to the Cooling Monitor digital input. It generates a warning when the drive is stopped and a fault (with a coast stop) when running. Continued operation without proper cooling will lead to severe overheating.

• Insufficient flow rate of cooling liquid through the heat exchanger, detected by a flow switch connected to the Cooling Monitor input (e.g., DI6).
• Failure of the cooling liquid pump (e.g., motor fault, impeller blockage) leading to a loss of circulation.
• Blockage in the cooling liquid circuit (e.g., clogged filter, restricted piping) reducing flow.
• Faulty external cooling monitor sensor (e.g., flow switch, pressure switch) providing an incorrect signal to the drive.
• Air trapped in the cooling liquid loop, causing erratic flow and sensor activation.

Click steps to track your progress.

1. 1

   Inspect the cooling liquid circulation pump for operational status and proper rotation.

2. 2

   Verify the state of the external cooling monitor sensor (e.g., flow switch) by manually actuating it or checking its electrical output (e.g., continuity).

3. 3

   Check the cooling liquid level in the reservoir and confirm it is above the minimum required level.

4. 4

   Measure the actual flow rate of the cooling liquid using an inline flow meter, comparing it to the system's specified minimum.

5. 5

   Clean any accessible filters or strainers within the cooling liquid circuit to remove potential blockages.

6. 6

   Bleed air from the cooling loop by following the equipment manufacturer's specific procedure.