Err

EEPROM Write Error

Yaskawa · V1000 AC Drive

What does Err mean?

This fault signals a hardware problem with the drive's EEPROM or data corruption during a write operation, often due to electrical interference. The drive may not be able to reliably store or retrieve critical parameters, leading to unpredictable behavior or loss of configuration. Continuous operation risks data integrity and proper control.

Complete Troubleshooting Guide

  1. 1

    Re-energize the drive to clear any transient issues.

  2. 2

    Press the ENTER key on the keypad to acknowledge and attempt to clear the error.

  3. 3

    Re-set any parameters that may have been lost or corrupted if they are known.

  4. 4

    If the fault persists, replace the control board or the entire drive unit.

Source: Yaskawa Manual