Encoder Fault

What does 43 mean?

This fault indicates a problem with the encoder signals, with subcodes specifying whether channel A (1), channel B (2), or both channels (3) of Encoder 1 are missing. Other causes include reversed encoder direction (4) or a missing encoder board (5). This directly impacts speed and position feedback for the drive.

Additional Steps

Steps 1–2 are listed in Priority Fix.

1. 3

   Check the encoder frequency output in open-loop mode to confirm signal presence and integrity, comparing it against expected values for motor speed.