Control Circuit Fault

What does CPF18 mean?

A general fault has been detected within the drive's control circuitry. This indicates an internal malfunction of the control logic, affecting overall drive operation. (Similar to CPF14).

Click steps to track your progress.

1. 1

   Verify incoming supply voltage and phase balance at the drive's main input terminals (L1/L2/L3) against specified limits.

2. 2

   Inspect all external control wiring (digital I/O, analog I/O, communication) for proper termination, insulation integrity, and absence of shorts or damage.

3. 3

   Check the drive's parameter settings related to control logic, I/O functions, and communication protocols against the application's design to identify any misconfigurations.

4. 4

   Verify the integrity of the drive's ground connection and ensure proper earthing of the entire system to prevent electrical noise affecting control circuitry.

5. 5

   Inspect the drive's internal environment for signs of contamination (dust, moisture) or overheating, ensuring cooling fans are operational and vents are clear.