Beckhoff · TwinCAT 2 NC
The value for the axis ID is not allowed because it has already been assigned, is less than or equal to zero, is greater than 255, or does not exist in the current configuration. The allowed range is [1 ... 255]. An invalid axis ID prevents the system from uniquely identifying and controlling the axis, making it inoperable.
Click steps to track your progress.
1. Review the system's axis configuration table (e.g., in the PLC/NC program) and verify each axis has a unique identifier within the 1-255 range.
2. Check the axis ID parameter (e.g., P1-01, Axis Number) in the drive configuration for the affected axis and ensure it is between 1 and 255.
3. Compare the configured axis ID in the drive with the expected axis ID from the master controller's axis mapping or motion profile.
4. If a new axis is being added, ensure its ID is unique and provisioned correctly in the NC system's hardware configuration file.
5. Power cycle the drive and controller after making any axis ID configuration changes to ensure they are fully applied and recognized.