Input Phase Loss Fault

Was bedeutet EPH1 ?

This fault occurs when one or more input phases to the Altivar 212 drive are lost, indicating an issue with the incoming AC supply or its connection to the drive.

• Loss of one or more input phases.
• Incorrect setting of parameter F608 ([Input phase loss]).

Klicken Sie auf Schritte, um Ihren Fortschritt zu verfolgen.

1. 1

   Measure the incoming AC line voltage at the drive input terminals (R/L1, S/L2, T/L3) to confirm phase presence.

2. 2

   Check upstream circuit breakers or contactors for proper operation and continuity.

3. 3

   Verify the setting of parameter F608 ([Input phase loss]) to ensure it is appropriate for the application.