4464
Encoder hardware error
Beckhoff · TwinCAT 2 NC
What does 4464 mean?
The drive or encoder system has reported a hardware error within the encoder itself. This indicates a physical malfunction of the encoder, which is critical for providing accurate position feedback. A faulty encoder will lead to uncontrolled axis motion, loss of positioning accuracy, or complete operational failure.
Additional Steps
Steps 1–2 are listed in Priority Fix.
- 3
Consult the drive's diagnostic messages for a more specific optimal error code related to the encoder hardware.
- 4
If wiring and visual inspection are inconclusive, replace the encoder or the drive/terminal module associated with it.
Source: Beckhoff TwinCAT 2 NC
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