230-0237

Access machine parameter menu

Press MOD key, select 'Machine Parameters', navigate to axis-specific parameters for the affected spindle axis.

Always backup current parameters before making changes using the parameter export function.

Check MP1010 axis type setting

Verify MP1010 for the spindle axis is set to 'MODULO' instead of 'LINEAR'. Change from 0 (linear) to 1 (modulo) if incorrect.

Changing axis type requires machine restart and may affect existing part programs.

Configure MP1020 modulo range

Set MP1020 to 360.000 degrees for standard spindle operation to enable continuous rotation capability.

For C-axis applications, ensure the modulo range matches your spindle encoder resolution requirements.

Restart control and verify

Perform control restart, check that alarm clears, and test spindle positioning functions in MDI mode.

Test all spindle functions including M3/M4 and positioning moves before returning to production.

Check spindle axis assignment

Navigate to MP7160 and verify which axis number is assigned as the spindle axis (typically axis 4 or 6 for C-axis).

Document current settings before changes - take photos of parameter screens for reference.

Verify assigned axis configuration

Check the axis parameters (MP1010, MP1020) for the axis number specified in MP7160 to ensure it has modulo configuration.

Mismatched axis assignments can cause unexpected machine movements during spindle operations.

Correct axis assignment or configuration

Either change MP7160 to point to a properly configured modulo axis, or configure the current assigned axis as modulo per previous cause block.

Consider the mechanical setup - ensure the assigned axis number matches the actual spindle motor connection.

Test spindle functionality

After restart, test both spindle rotation (M3/M4) and positioning functions to verify proper operation.

Always test at reduced speeds initially to verify correct rotation direction and positioning accuracy.

Review recent parameter changes

Check the parameter change log in the TNC diagnostics menu to identify when spindle or axis parameters were last modified.

The TNC maintains a parameter change history - use this to identify what changed and when.

Compare with known good configuration

If available, compare current parameters with a known good backup or machine documentation to identify discrepancies.

Never restore parameters without verifying compatibility with current software version and machine configuration.

Manually correct spindle parameters

Set MP1010=1 (modulo) and MP1020=360.000 for the spindle axis, ensuring consistency with MP7160 assignment.

Create a new parameter backup immediately after correcting the configuration for future reference.

Validate complete spindle setup

Test all spindle functions including speed control, direction changes, and C-axis positioning if applicable.

Incomplete parameter restoration may affect other machine functions - perform comprehensive testing.

Check software version and update history

Access 'About' in the TNC menu to verify current software version and check if recent updates occurred that might affect parameter structure.

Keep a log of software updates and parameter changes to track correlation with issues.

Review parameter migration log

Check the system log files for parameter migration warnings or errors that occurred during the software update process.

Parameter migration issues may affect multiple machine functions beyond just the spindle configuration.

Reconfigure spindle parameters manually

Set the spindle axis parameters (MP1010, MP1020) according to machine specifications and verify spindle assignment in MP7160.

Consult the machine builder's parameter documentation for the correct spindle configuration values.

Perform comprehensive function test

Test all machine functions, not just spindle operation, to ensure the software update and parameter corrections are fully compatible.

Software updates may introduce new parameter requirements - verify all critical machine functions before production use.