Rockwell Automation PowerFlex 400 FRN 4.xx Error F81: Comm Loss

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

Fault codeF81

Comm Loss fault occurs when a communication link is interrupted, possibly due to wiring, port, or adapter issues. The manual lists no action for this code.

Model
Rockwell Automation PowerFlex 400 FRN 4.xx
Display shows
Comm Loss (F81)
Type
Fault code
Source
Manual p. 25

What F81 means

Comm Loss p. 25

Common causes

  • If adapter was not intentionally disconnected, check wiring to the port. Replace wiring, port expander, adapters or complete drive as required. Check connection. An adapter was intentionally disconnected. Turn off using C105 [Comm Loss Action]. p. 25

If F81 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 F81; 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.