600-0051

Check tool table entry

Press TOOL TABLE key, verify tool radius R parameter matches actual tool geometry. Check if wrong tool number was called in program.

Use TOOL CALL with DL=0 to verify tool data without length compensation

Analyze contour geometry

In cycle definition (SL CONTOUR or similar), review the contour for minimum radius features. Check Q parameter for finishing allowance.

Ensure contour data in subprogram matches actual part geometry

Select smaller diameter tool

Choose tool with radius smaller than minimum feature radius. Update TOOL CALL statement with correct tool number.

Rule of thumb: tool radius should be 80% or less of minimum corner radius

Review cycle parameters

Check Q parameter in finishing cycle definition. Verify it matches intended finishing stock allowance.

Q parameter should account for previous roughing operations

Calculate effective tool path

Add tool radius + Q parameter value. Ensure this sum is less than available material thickness or corner radii.

Negative Q values move tool path outward from programmed contour

Adjust finishing allowance

Reduce Q parameter value or modify roughing cycle to leave appropriate stock for finishing operation.

Use CYCL DEF simulation to verify tool path before execution

Open contour subprogram

Navigate to PGM MGT, select contour subprogram. Review all RND (radius) and CHF (chamfer) values in contour definition.

Use contour editor graphics to visualize geometry

Verify coordinate accuracy

Check X,Y coordinates for typing errors. Ensure contour closes properly and direction is correct (G02/G03).

Incorrect arc directions can create invalid geometry

Modify contour geometry

Increase minimum radius values or adjust coordinates to accommodate tool radius. Save and test subprogram.

Use CONTOUR TRAIN function to automatically check contour validity

Check compensation status

Review program for RL/RR/R0 commands. Verify compensation direction matches intended tool path relative to contour.

Use RADIUS COMP soft key to check active compensation status

Verify approach/departure moves

Ensure adequate approach length before RL/RR activation. Check that departure moves properly cancel compensation with R0.

Insufficient approach distance can cause compensation errors

Correct compensation sequence

Modify RL/RR commands or add proper approach geometry. Test with single block execution.

Use APPR/DEP functions for automatic approach/departure moves

Check machine parameters

Access MOD function, review MP parameters related to tool limits. Look for maximum tool diameter restrictions.

Only qualified personnel should modify machine parameters

Review cycle-specific limits

Some finishing cycles have built-in tool size limitations. Check cycle documentation for maximum tool diameter.

Consult machine tool builder documentation for cycle-specific limits

Contact service engineer

If parameter changes are needed, document current settings and contact qualified service personnel.

Incorrect MP settings can damage machine or workpiece