42F3
Invalid coupling parameter for auxiliary axes
Beckhoff · TwinCAT 2 NC
What does 42F3 mean?
The coupling parameters configured for the auxiliary axes are inconsistent. These parameters define how auxiliary axes are linked or synchronized with other axes (e.g., master-slave, gearing), and an invalid setup will lead to improper synchronized motion, position errors, or loss of coordinated control.
Additional Steps
Steps 1–2 are listed in Priority Fix.
- 3
Correct any inconsistent values or configurations.
- 4
Save configuration changes and restart the NC system.
Source: Beckhoff TwinCAT 2 NC
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