Rockwell Automation PowerFlex 400 FRN 4.xx Error F42: Phase UW Short

PowerFlex 400 FRN 4.xx · taken from the manufacturer’s manual, pages cited

Fault codeF42

Phase UW Short means there is a shorted condition, requiring replacement if cleared. The manual lists no action for this code.

Model
Rockwell Automation PowerFlex 400 FRN 4.xx
Display shows
Phase UW Short (F42)
Type
Fault code
Source
Manual p. 25

What F42 means

Phase UW Short p. 25

Common causes

  • Replace drive if fault cannot be cleared. p. 25

If F42 is still not resolved

The manual gives no further instruction for this code. Open the code table in the PDF or contact Rockwell Automation service.

Open the manual at page 25 All PowerFlex 400 FRN 4.xx error codes Manual details & download

This page summarises what the manufacturer’s manual says about F42; each statement links to the page it comes from, and quoted lines are copied word for word. It is not a substitute for the manual or for a qualified installer. ManualLib is not affiliated with Rockwell Automation. Found a mistake? Report an error.