230-00FC

Check active work coordinate system

Press POS key, verify which coordinate system is active (G54, G55, etc.) and check the offset values in Setup menu > Work Coordinate Systems.

Use PRESET table to verify datum positions match your actual workpiece setup

Verify TRANS/ATRANS commands

Review NC program for coordinate transformations. Check if TRANS MIRROR or ATRANS commands are shifting coordinates beyond machine limits.

ATRANS commands are additive - multiple ATRANS calls accumulate offsets

Reset coordinate system

Execute TRANS X0 Y0 Z0 or use Setup > Work Coordinate Systems to reset offsets, then re-establish proper work coordinates.

Access machine parameters

Enter MOD function, select Machine Parameters, navigate to MP1010-MP1013 for positive axis limits and MP1020-MP1023 for negative limits.

Machine parameter changes require proper authorization level and machine restart

Compare with physical limits

Verify parameter values match actual machine travel ranges. Check against machine documentation and physical limit switch positions.

Use manual mode to jog axes to physical limits and note position values

Adjust parameters if necessary

Modify travel limit parameters to match machine specifications, save parameters, and restart control to activate changes.

Check active tool data

Press TOOL CALL key, review tool table entries for LENGTH and LENGTH2 values. Verify tool length compensation is appropriate for current tool.

Tool length should be measured from spindle face to tool tip, not total tool length

Verify tool call in program

Review NC program for TOOL CALL commands and ensure correct tool numbers are specified with proper DL compensation.

Missing TOOL CALL 0 at program end can leave compensation active

Test with tool compensation off

Temporarily call TOOL CALL 0 to cancel compensation and test if alarm clears, indicating tool length issue.

Check spindle position parameters

Review machine parameters MP3410-MP3419 for spindle positioning limits and verify current spindle position in POS display.

Spindle position values should typically stay within 0-360 degrees or equivalent encoder counts

Reset spindle position reference

Execute spindle reference run using Setup > Spindle > Reference or manual reference procedure to re-establish spindle zero position.

Ensure spindle is stopped before executing reference run

Clear accumulated positioning errors

Use M19 with specific angle (M19 0) to reset spindle to known position, or cycle power to clear position accumulation.