InFE

CPU Detected Fault

Schneider Electric · Altivar Machine ATV320 Variable Speed Drive

What does InFE mean?

A CPU detected fault, indicating an internal error related to RAM, Flash memory, or task execution within the drive's central processing unit. This is a critical internal fault that will prevent the drive from functioning at all and requires immediate attention.

Complete Troubleshooting Guide

  1. 1

    Power cycle the drive.

  2. 2

    If the fault persists, it indicates a severe internal hardware fault on the control board, requiring replacement of the control board or the entire drive.

  3. 3

    Ensure the drive's operating environment is free from excessive electrical noise or extreme temperatures.

Source: Schneider Electric Manual