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Access NCK → Geometry → Rotary Axes menu or open the machine parameters editor and navigate to the tool carrier configuration (typically TCBA parameter or MD equivalent).

Ensure you have write access to machine data; some systems require operator level 3 or higher.

Verify that parameter _TCBA is set to enable automatic B-axis rotation (value should indicate B-axis is assigned to the swivel carrier). Cross-reference your machine documentation for the correct flag value.

If _TCBA is not set correctly, modify it to include B-axis as an automatic rotary axis, then reset the NC controller (warm or cold reset depending on system state).

Parameter changes may require a machine power cycle; verify no active programs are running before applying changes.

Reload the ShopTurn configuration and retry CYCLE800 execution to confirm B-axis kinematics are now recognized.

Open the ShopTurn/ShopMill kinematics editor via NCK → Kinematics → Swiveling Data, or access machine data MD20050 (Kinematic Type) and related carrier parameters.

The swivel data record number [n] must correspond to your machine's actual tool carrier configuration; consult your machine manual for the correct index.

Locate $TC_CARR37[n] and verify it is enabled (typically a binary flag; 1 = enabled). If disabled, set the parameter to activate B-axis kinematics.

Confirm that all dependent kinematic parameters (carrier offset, axis assignment, transformation tables) are correctly configured alongside $TC_CARR37[n].

Inconsistent kinematic configuration can cause additional alarms; review all CARR parameters related to swiveling.

Perform a full machine reset or warm restart to reinitialize kinematics, then test CYCLE800 again.

Check NCK → Geometry → Axes to verify that B-axis is defined with type 'Rotary' and assigned the correct axis number. Confirm axis name matches references in tool carrier data.

Review machine data MD20050 (Kinematic Type) and MD20060 (Kinematic Group) to ensure B-axis is included in the active kinematic chain for turning operations.

Some systems use multiple kinematic groups; verify the correct group is selected for ShopTurn mode.

Cross-reference the B-axis assignment in CYCLE800 documentation or your program comment with the actual axis geometry definition. Ensure consistency between NC program and machine configuration.

If discrepancies are found, correct the axis geometry and kinematic chain settings, then perform a complete machine initialization (reset all kinematics).