10602

Access machine data parameters

Navigate to HMI → Commissioning → Machine → Machine axes → Traversing ranges and check MD36100 $MA_AXCONF_MACHAX_MIN_POS[X] value.

Compare current MD36100 value with machine manufacturer specifications

Verify actual machine limits

Manually jog X-axis to physical negative limit using handwheel in JOG mode and note the position display value.

Use extreme caution when approaching physical limits - move slowly

Adjust software limit

Set MD36100 value to be 2-5mm more restrictive than physical limit, then execute MD reset and NCK restart.

Always leave safety margin between software and hardware limits

Check active work offset

In HMI → Machine → Actual values, verify current work offset values and check which coordinate system (G54-G59) is active.

Use SUPA (Setup) softkey to view all active offsets simultaneously

Analyze NC program

Review NC program for G92, G54-G59 commands and verify X-coordinate values don't create negative overtravel when combined with offsets.

Pay special attention to incremental moves (G91) that may accumulate

Simulate program path

Use Program → Simulation mode to verify complete tool path stays within machine limits before executing in AUTO mode.

Enable workpiece boundary display in simulation for visual verification

Check reference point status

Navigate to HMI → Diagnostics → NCK → Axes and verify REF indicator shows green for X-axis. Check for any encoder alarms in alarm buffer.

Never attempt to move axis without valid reference point

Perform reference point approach

Execute reference point return using HMI → Machine → Reference point → Select X-axis → Start. Monitor position values during homing sequence.

If homing fails repeatedly, check MD34060 $MA_REFP_SET_POS parameter

Verify encoder signals

Check encoder feedback in HMI → Diagnostics → Drive → Encoder and verify clean sine/cosine signals without dropouts or noise.

Look for consistent encoder signal amplitude and proper 90-degree phase relationship

Verify drive scaling parameters

Check MD31050 $MA_DRIVE_AX_RATIO_DENOM and MD31060 $MA_DRIVE_AX_RATIO_NUM in HMI → Commissioning → Drive → Mechanical system.

Calculate expected ratio based on motor resolution, gearing, and leadscrew pitch

Test position accuracy

Move X-axis a known distance (e.g., 100mm) and verify actual movement matches commanded distance using dial indicator.

Incorrect scaling can cause collision - use small test movements initially

Recalculate and update scaling

If scaling is incorrect, calculate proper ratio values, update MD parameters, and perform drive optimization with MD reset and NCK restart.

Document original values before making changes for easy rollback if needed