A/D Conversion Error

What does CPF02 mean?

An Analog-to-Digital (A/D) conversion error or a control circuit error has occurred, indicating a potential issue or damage within the drive's control circuit. This means the drive cannot accurately convert analog input signals (e.g., current, voltage, feedback) into digital values for processing, risking unstable operation, incorrect control, or damage to connected equipment.

Complete Troubleshooting Guide

1. 1

   Cycle power to the drive (turn off, wait, then turn on) to attempt a reset of the control circuit.

2. 2

   If the problem persists, contact Yaskawa technical support for guidance on replacing either the control board or the entire drive unit, as the control circuit may be damaged.