61440

Access Siemens 840D HMI: Navigate to Offset Management > Tool Offset Table (or SEMA/SIMODRIVE interface depending on panel type).

Locate the active tool record in the TO table and verify the cutting edge position field (typically column 'KP' or 'KPOS'). Valid entries must be 1-8 (corresponding to 8 possible nose positions on a turning insert).

Do not use values 0 or >8; these trigger 61440

If field is empty or invalid, enter the correct cutting edge position (1-8) based on your tool geometry and tool carrier setup documentation.

Save the tool offset table and retry CYCLE982 execution. Verify alarm clears in alarm log (Diagnostics > Alarms menu).

Access machine data via Siemens Service menu: Diagnosis > Machine Data or Control Panel > Settings > Machine Parameters. Navigate to MD20100 (Tool Carrier Type for active spindle).

Verify MD20100 matches your physical tool turret configuration (e.g., VDI30, ISO, or custom carousel). Cross-reference against machine manual and physical tool carrier identification.

Incorrect carrier type prevents NCK from mapping cutting edge positions to tool offsets

Check machine data MD20110-MD20115 (tool carrier basic position and geometry offsets). Ensure these values correspond to your tool carrier's mechanical zero position relative to spindle centerline.

If discrepancy found, correct machine data or re-assign tool cutting edge position (1-8) to match your actual carrier geometry. Re-run CYCLE982 after machine data changes (may require control restart).

Review the NC program block preceding alarm occurrence (reference block %2 in alarm message). Confirm that the tool selected is a turning tool intended for lathe operations.

In tool offset table, verify the tool type classification field (typically 'ART' or 'TYPE'). Turning tools must be coded as 'TURN' or equivalent; milling/drilling tools will conflict with CYCLE982.

Do not run CYCLE982 with milling or drilling tool assignments

If wrong tool type assigned, create a new tool record with correct type (TURN) and cutting edge position (1-8), or modify existing record's type classification and re-assign cutting edge position.

Call CYCLE982 again with the corrected tool record. Monitor alarm log for clearance. If alarm persists, contact Siemens service and provide dump of TO table and relevant machine data (MD20100-MD20115).