Er - 02

Auto-Tuning Alarm

Yaskawa · F7 Drive

What does Er - 02 mean?

An alarm has been detected during the Auto-Tuning process, signaling a potential issue with the tuning setup or the motor/load configuration. While not a critical fault that stops the Drive, it warns of an incomplete or inaccurate auto-tuning result, which could lead to suboptimal motor performance or control issues.

Complete Troubleshooting Guide

  1. 1

    Re-check all Auto-Tuning input data parameters (T1 group) for any incorrect or missing entries.

  2. 2

    Inspect the output wiring from the Drive to the motor for any loose connections, damage, or improper phasing.

  3. 3

    Evaluate the motor's mechanical load to ensure it is suitable for Auto-Tuning, considering temporarily disconnecting the load if possible.