280-0850

Access tool table

Press TOOL TABLE softkey, then select the dresser tool number causing the alarm.

Check the tool table immediately after the alarm occurs - the active tool number is usually displayed in the error message.

Verify dresser type parameter

Check column 'TYPE' in tool table - ensure dresser type is properly defined (e.g., DRESS_ROLL, DRESS_BLOCK, DRESS_DIAMOND).

Never leave the TYPE field empty for dresser tools as this will trigger the alarm.

Validate dresser geometry

Verify dresser geometry parameters (LENGTH, RADIUS) are properly entered and match the physical dresser specifications.

Use the TNC's built-in dresser type templates by pressing the HELP key while in the TYPE field.

Test dresser definition

Execute a simple dressing cycle in single block mode to verify the dresser type is now recognized by the system.

Review active grinding cycle

Check the current grinding cycle (CYCLE 276, 277, etc.) and verify dresser compatibility requirements in the cycle documentation.

Some grinding cycles only accept specific dresser types - check the cycle help for supported dresser configurations.

Verify machine configuration

Access machine parameters (MP) and check dresser-related settings to ensure the dresser type is enabled for your machine configuration.

Check cycle parameters

Review grinding cycle parameters, particularly Q parameters related to dressing operations, and ensure they match the selected dresser capabilities.

Select compatible dresser

Choose an appropriate dresser type that matches both the grinding operation requirements and machine capabilities.

Backup current settings

Create backup of tool table and part program using TNC's file management system before attempting repairs.

Reset dresser parameters

Clear and re-enter all dresser-related parameters in the tool table, ensuring proper syntax and valid dresser type codes.

Reload grinding cycles

If available, reload the grinding cycle definitions from the TNC's system files or reinstall the grinding software package.

Contact Heidenhain support before modifying system cycle files as this may void warranty.

Perform system validation

Run TNC diagnostic functions to verify system integrity and proper loading of grinding cycle definitions.

Check TNC software version

Access MOD function and check current TNC software version against dresser type compatibility requirements.

Verify grinding package version

Check installed grinding software package version and ensure it supports the dresser types being used in your application.

Review dresser type documentation

Consult Heidenhain documentation to verify which dresser types are supported in your specific TNC software version.

Newer dresser types may not be available in older TNC software versions - consider using legacy dresser type definitions.

Update or modify dresser selection

Either update the TNC software to support newer dresser types or modify the program to use compatible dresser types for your current software version.