A/D Conversion Fault

What does CPF22 mean?

A fault occurred within the analog-to-digital conversion circuitry of the drive. This affects the accuracy of input signal readings from sensors and other analog sources.

Click steps to track your progress.

1. 1

   Inspect all analog input wiring (signal and return) for proper shielding, secure connections, and absence of damage or corrosion at both the sensor and drive terminals.

2. 2

   Measure the actual analog input signal (e.g., voltage or current) directly at the drive's input terminals using a multimeter or oscilloscope, and compare to expected values and stability.

3. 3

   Verify drive parameters related to analog input configuration, scaling, offset, and filtering (e.g., A1-xx for P1000) match the connected sensor type and desired application.

4. 4

   Inspect the drive's control power supply grounding and the integrity of the overall panel grounding connections to minimize potential noise or interference.