173

Identify the exact line number in the program where the alarm occurred by checking the CNC display and program position.

Review parameters 1320-1327 (stored stroke limit 2 settings) to verify the defined boundaries for each axis.

Compare the commanded position in the program against the stored stroke limit 2 boundaries to confirm the violation.

Modify the program to keep all axis movements within the allowed stroke limits, or verify with management if the stored stroke limit needs adjustment for this specific job.

Only modify stored stroke parameters with proper authorization, as they are safety-critical settings.

Press OFFSET button and verify all active work coordinate system offsets (G54, G55, G56, etc.) are correctly entered.

Check the current work offset by reviewing the CURRENT screen position display in both work coordinates and machine coordinates.

Calculate the actual machine coordinate position by adding the work offset to the programmed position and verify against parameter stroke limits.

Correct the work offset values or reposition the part setup to ensure the combined work offset and programmed moves stay within stored stroke limit 2.

Always verify work offset changes with a dry run or single block execution before running at full speed.

Navigate to the OFFSET screen and verify the tool length offset (geometry and wear) for the active tool number matches the actual tool being used.

Check if stored stroke limit 2 is configured for Z-axis protection by reviewing parameters 1322-1323 (Z-axis stored stroke 2 limits).

Calculate the actual Z-axis machine position including tool length offset and verify it does not exceed the stored stroke limit 2 boundary.

Correct the tool length offset value or modify the Z-axis program moves to accommodate the tool length while staying within limits.

Never bypass stroke limits - they exist to prevent spindle crashes and machine damage.