F109-44

Plausibility fault in encoder interface (A3401 = encoder 1 and A3402 = encoder 2)

SEW Eurodrive · MOVIDRIVE MDX60B/61B Variable Speed Drive

What does F109-44 mean?

The encoder interface (A3401 or A3402) does not match the configured data. This suggests a mismatch between the physical encoder type/connection and the drive's settings.

Additional Steps

Steps 1–2 are listed in Priority Fix.

  1. 3

    Check the polarity of the encoder data.

  2. 4

    Check function of the encoder.

Source: SEW Eurodrive MOVIDRIVE MDX60B/61B Variable Speed Drive
Open Manual (Page 214)