CPF02

A/D Conversion Error

Yaskawa · P1000 AC Drive

What does CPF02 mean?

An error occurred during the analog-to-digital conversion process within the drive. This can affect the accuracy of sensor readings and internal measurements.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Verify external wiring for all analog input and output signals connected to the drive, checking for integrity and shielding.

  2. 2

    Measure the actual analog input signal voltage/current directly at the drive's input terminals to confirm it is within specification and free from excessive noise.

  3. 3

    Check drive parameters related to analog input configuration, scaling, offset, and filtering (e.g., A1-xx parameters) for correct settings.

  4. 4

    Inspect the control terminal block and associated connections for any signs of loose terminals, corrosion, or contamination.

  5. 5

    Verify the grounding integrity of the drive, control circuits, and connected analog sensors.

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Verified technical data. Last updated: March 2026

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