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

What does F109-56 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.

• Encoder data plausibility check failed for encoder 1 (A3401) or encoder 2 (A3402).
• Position or velocity feedback is inconsistent.
• Encoder resolution mismatch or incorrect setup.
• Mechanical issue causing inconsistent encoder output.

Click steps to track your progress.

1. 1

   Check encoder type and configuration (SSI/incremental).

2. 2

   Check the encoder connection/wiring.

3. 3

   Check the polarity of the encoder data.

4. 4

   Check function of the encoder.