293-000D

Access Machine Parameter Menu

Navigate to MOD > Machine Parameters > CfgAxisFilter to view current filter configurations.

Use the search function in machine parameters to quickly locate filter settings for the affected axis.

Identify Conflicting Position Filters

Check parameters MP7500-MP7599 range for duplicate position filter entries on the same axis number shown in alarm.

Document current settings before making changes for rollback purposes.

Remove Duplicate Filter Entry

Delete one of the conflicting position filter parameter entries, keeping only the filter with appropriate frequency and damping values for your application.

Consult machine documentation to determine which filter settings are correct for your specific axis configuration.

Restart Control and Verify

Perform a control restart (Ctrl+Alt+Del) and verify the alarm clears during initialization sequence.

Review Recent Parameter Changes

Check the parameter change log in MOD > Machine Parameters > Parameter History to identify when duplicate filters were introduced.

Look for batch parameter imports or restorations that may have overwritten existing filter configurations.

Compare with Backup Configuration

Load a known good parameter backup and compare CfgAxisFilter section with current settings to identify discrepancies.

Ensure backup compatibility with current TNC software version before restoration.

Correct Filter Type Assignments

Modify filter type parameters to ensure only one position filter exists per axis, converting additional filters to velocity or acceleration types if needed.

Use filter type parameter values: 0=position, 1=velocity, 2=acceleration to properly differentiate filter functions.

Validate All Axis Configurations

Systematically check all configured axes to prevent similar conflicts on other axes before restarting the control.

Check Software Version History

Verify recent TNC software updates in MOD > System Info > Software Version and correlate with alarm occurrence timing.

Document exact software versions before and after update for Heidenhain technical support reference.

Review Migration Log Files

Examine parameter migration logs in the TNC system directory for filter conversion errors or warnings during software update.

Migration logs may contain critical information needed for proper parameter reconstruction.

Rebuild Filter Configuration

Manually reconfigure axis filters based on machine specifications, removing all existing filter parameters and recreating them systematically.

Start with conservative filter settings and optimize performance after basic operation is restored.

Test Axis Movement

Perform controlled axis movements in manual mode to verify proper filter operation before returning to automatic operation.

Review Configuration Template

Check the machine configuration template file used during setup for duplicate filter definitions in the axis configuration section.

Configuration templates are typically stored in the TNC ConfigurationData directory for reference.

Verify Axis Definition Consistency

Ensure axis numbering and filter assignments match the physical machine configuration without overlapping definitions.

Incorrect axis definitions can cause mechanical damage during operation.

Regenerate Clean Configuration

Use the TNC configuration wizard to rebuild axis filter parameters with proper single position filter per axis assignment.

Save current working parameters before using configuration wizard to preserve custom settings.