4470
SSI transformation fault or not finished
Beckhoff · TwinCAT 2 NC
What does 4470 mean?
The Synchronous Serial Interface (SSI) transformation performed by the FOX 50 module was either faulty for several NC cycles or failed to complete. This indicates a problem in reading or converting data from SSI encoders, leading to inaccurate or missing position feedback and ultimately affecting axis control.
Additional Steps
Steps 1–2 are listed in Priority Fix.
- 3
Inspect the FOX 50 module itself for any diagnostic LEDs or fault indicators.
- 4
If connectivity and configuration are correct, consider replacing the FOX 50 module.
Source: Beckhoff TwinCAT 2 NC
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