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Identify the exact block number from the alarm display or program cursor position on the control screen.

Review the flagged NC block line-by-line and look for any axis letter (X, Y, Z, A, B, C, etc.) that appears more than once.

Remove the duplicate axis command or split the block into multiple sequential blocks, keeping only one command per axis per block.

Reset the alarm, return to program start or the corrected block, and test run in single block mode to verify the correction.

Check the machine parameter settings (parameter 1020 for number of controlled axes) to determine the maximum number of axes your system supports.

Do not modify parameters without proper backup and authorization.

Count the total number of different axis addresses commanded in the alarmed block, including linear (X, Y, Z) and rotary axes (A, B, C, U, V, W).

If the axis count exceeds the control's capability, split the move into multiple blocks grouping compatible axes together (e.g., separate linear positioning from rotary positioning).

Clear the alarm, verify the modified program logic maintains the correct tool path, and execute in dry run mode before cutting.

If the alarm occurs during macro execution, use the trace function or background edit to view the expanded NC code that the control is actually executing.

Examine the macro variable assignments and verify that variable substitution is not inserting duplicate axis letters or creating more axis commands than intended.

Correct the macro logic or variable assignments to ensure proper code generation, and test with known safe values before production use.

Always verify macro output with single block execution before running at full speed.

Reset the alarm, reload or re-call the corrected macro, and validate the generated blocks no longer contain excessive or duplicate axis commands.