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Review the program around the alarm location for excessive G01 blocks with very small incremental moves (typically less than 0.001-0.01mm/inch).

Check CAM system tolerance settings - reduce the number of output segments by increasing chord tolerance or using G02/G03 arc commands instead of linearized segments.

Insert M00 or M01 stops periodically in long contouring sections to clear the retrace buffer, or break the program into smaller subprograms.

Verify parameter 8136 (retrace buffer size) is set appropriately - consult Fanuc documentation for your specific control model before modification.

Changing buffer parameters incorrectly can cause system instability or other alarms.

Identify if G41 or G42 is active when alarm occurs - check program for cutter compensation commands before the alarm block.

Simplify the programmed path geometry by removing unnecessary small segments or blending tight corners where part tolerance allows.

Temporarily cancel cutter comp (G40) at strategic points in the program, then re-engage - this clears the retrace buffer while maintaining path accuracy.

Ensure G40 cancel and re-engagement points do not create gouges or incorrect tool paths.

Review parameter 8136 and 8137 settings for retrace and compensation buffer allocation - increase if hardware memory permits.

Document original parameter values before changes and test thoroughly.

Search program for excessive G09 commands or verify if G61 mode is active - check modal state before alarm occurrence.

Switch to G64 (cutting mode) for contouring sections where exact stop at every block is not required for part quality.

Use G61 or G09 only at critical dimensional points (corners, finish passes) rather than continuously throughout the program.

Adjust parameter 1783 (corner deceleration) settings to optimize path smoothing and reduce retrace data generation during continuous path moves.

Changes to corner deceleration parameters affect surface finish and cycle time - verify with test cuts.