F48

Params Defaulted

Allen-Bradley · PowerFlex 4M Adjustable Frequency AC Drive

What does F48 mean?

This fault indicates that the drive has been commanded to restore its parameters to factory default values, typically through a user action or system command. While not a malfunction, it means previous custom configurations are lost, which could lead to incorrect operation if not re-programmed.

Complete Troubleshooting Guide

  1. 1

    Clear the F48 fault by pressing Stop (if P107 allows), cycling drive power, or using A450 [Fault Clear].

  2. 2

    Re-program all necessary drive parameters to their application-specific values, as they have been reverted to factory defaults.

Source: Allen-Bradley Manual