25

Microprocessor watchdog fault

Vacon · NXS NXP AC Drive

What does 25 mean?

The microprocessor watchdog has tripped, indicating a software or hardware malfunction within the control unit. This can be caused by faulty operation or a component failure, where the microprocessor becomes unresponsive. This is a critical fault that prevents the drive from executing its control logic safely.

Complete Troubleshooting Guide

  1. 1

    Reset the fault and attempt to restart the drive.

  2. 2

    If the fault re-occurs, contact the distributor immediately as it indicates an internal failure of the control unit.