F64

Drive Overload

Allen-Bradley · PowerFlex 4 Adjustable Frequency AC Drive

What does F64 mean?

This fault indicates that the drive itself has experienced an overload condition, where its internal thermal model or output current has exceeded safe limits over a period of time. This protects the drive's power components from overheating.

Additional Steps

Steps 1–2 are listed in Priority Fix.

  1. 3

    Verify that the motor's actual running current under load does not consistently exceed the drive's rated output current.

Source: Allen-Bradley PowerFlex 4 Adjustable Frequency AC Drive
Open Manual (Page 15)