Input line supervision

What does 10 mean?

The input line phase supervision has detected that one or more input line phases are missing. Subcodes in T.14 can specify if the issue relates to diode supply (S1) or active front end (S2) phase supervision. This prevents proper charging of the DC bus and operation of the drive.

• Input voltage consistently too low or too high.
• Failure in voltage monitoring circuitry (P1-01).
• Unbalanced three-phase input supply.
• Issues with input filters or rectifiers.
• Incorrect mains voltage setting (P1-03).

Click steps to track your progress.

1. 1

   Check the incoming AC supply voltage at the frequency converter's input terminals for all three phases.

2. 2

   Inspect all input fuses for continuity and ensure they are correctly rated and securely installed.

3. 3

   Verify the integrity and connections of the supply cables leading to the frequency converter's input terminals.