230-0083

Check protection zone parameters

Access MOD function, select machine parameters, navigate to MP7310.0 through MP7310.3 to review active protection zones for the affected axis.

Use MP7310.x = -999999999 to disable unused protection zones

Verify modulo axis settings

Check MP1010.x (modulo position) and MP1011.x (modulo range) for the rotary axis to ensure compatibility with protection zones.

Modifying modulo parameters requires machine re-referencing

Adjust protection zone limits

Modify MP7310.x values to accommodate the full modulo range or disable protection zones temporarily for testing.

Document original values before making changes

Perform manual reference run

Select Manual mode, press REF key, and manually reference the problematic axis while monitoring its final position.

Ensure axis moves freely and encoder signals are stable

Check reference point parameters

Verify MP1020.x (reference point coordinate) and MP1030.x (reference point offset) for correct positioning within allowed zones.

Use axis position display in Manual mode to verify actual vs. expected reference position

Validate encoder reference marks

Check encoder reference mark detection using diagnostic screen MOD > Diagnosis > Encoder to ensure clean reference signal acquisition.

Multiple reference marks detected may indicate encoder contamination or electrical noise

Review software limit parameters

Check MP1080.x (negative software limit) and MP1090.x (positive software limit) for the modulo axis in machine parameter menu.

Software limits should typically be disabled on true modulo axes

Disable conflicting software limits

Set MP1080.x and MP1090.x to extreme values (±999999999) to effectively disable software limits on modulo axes.

Ensure hardware limit switches are properly configured before disabling software limits

Test modulo movement

Execute test movements in MDI mode using G00 commands with positions exceeding 360° to verify modulo operation.

Use incremental movements (G91) to test continuous rotation capability

Check active transformations

Review current kinematic settings in Manual mode status display and verify if RTCP or 5-axis transformation is active.

Use TRANS DATUM RESET to clear active transformations for testing

Verify kinematic parameters

Access machine parameters MP2010 through MP2050 to review kinematic transformation settings and their interaction with modulo axes.

Kinematic parameter changes require careful validation with known good part programs

Test without transformations

Temporarily disable kinematic transformations and attempt the problematic movement to isolate the root cause.

Document current transformation state before disabling for easy restoration