2

EE Checksum Error

Vacon · X4 AC Drive

What does 2 mean?

This fault indicates a memory problem, such as an issue during reflashing, a conflict within the drive's memory, or an inability to write parameters. It can also occur if Modbus write requests are too frequent, overwhelming the drive's processing capability. This typically suggests corrupted memory or communication overload.

Complete Troubleshooting Guide

  1. 1

    Reset the drive to factory settings to clear any conflicting parameters.

  2. 2

    If using Modbus for parameter writes, slow down the frequency of these requests.

  3. 3

    If the problem persists after resetting and checking Modbus frequency, consult the factory for further assistance as it may indicate a deeper memory or hardware issue.