Instantaneous Power Failure

What does E.IPF mean?

This fault activates when an input power failure or shut-off lasts longer than 15ms, stopping the inverter output to prevent control circuit malfunction. During this event, the alarm warning output contacts open across terminals B-C and close across terminals A-C. If the power failure exceeds 100ms, the alarm warning output is not provided, and the inverter may auto-restart if the start signal is active upon power restoration.

Additional Steps

Steps 1–2 are listed in Priority Fix.

1. 3

   Configure the automatic restart function after instantaneous power failure, as described on page 89 of the manual.