PS041

Review the program block displayed with PS041. Check parameters 5003-5007 (compensation mode settings) to verify compensation type (G41/G42 direction) matches intended tool path.

Verify tool offset value in OFFSET SETTING > WORK ZERO OFFSET screen. Compare H or D offset value against the minimum corner radius in the programmed geometry - tool radius must be smaller than internal corner radii.

Modify program geometry to add corner chamfers or radii larger than the tool radius, or reduce tool diameter/offset value. Alternatively, split sharp corners into multiple G01 blocks with intermediate points.

Changing geometry affects part dimensions - verify with part drawing requirements

Test program in single block mode (SINGLE BLOCK button) with feedrate override at 5-10% to verify compensation path calculation resolves without PS041 reoccurrence.

Check parameter 5006 (compensation mode type): 0=Type A, 1=Type B, 2=Type C. Type C provides most robust interference checking. Review alarm history in ALARM > HISTORY screen to identify exact block number.

Verify G40 cancellation occurs on a linear move (G01) away from the workpiece, not during an arc (G02/G03) or at a corner. G41/G42 activation must occur on an approach move before any corner geometry.

Insert a clearance move (minimum 2x tool radius linear distance) before G40 cancellation. Ensure G41/G42 activation block contains only startup geometry without direction changes.

Set parameter 5004 bit 0 (CCW) to 1 if circular interference check needs adjustment. Reset CNC (SYSTEM > PARAM > [RESET + SYSTEM]), reload program, and verify in PROGRAM CHECK mode.

Parameter changes require PWE parameter write enable - document original values before modification

Access OFFSET SETTING screen and verify the active H offset or D offset number matches the programmed offset call (H__ or D__). Check that offset value is appropriate for feature size being machined.

For internal features, ensure tool radius is less than 50% of the smallest feature dimension. Verify parameter 5001 (offset number range) and 5002 (offset memory type) are correctly configured for your offset storage method.

Reduce offset value to create adequate clearance, or reprogram feature with larger geometry. Use PROGRAM > CHECK > DRY RUN with MACHINE LOCK engaged to simulate path without motion.

Enable parameter 5008 bit 1 (interference check expansion) if using complex 3D compensation. Verify corrected path using graphics simulation in PROGRAM > GRAPHIC or external CAM verification.

Graphics simulation may not show all compensation interference conditions - physical dry run recommended