330-0038

Access CfgAxisSafety Configuration

Navigate to MOD function → Machine Parameters → CfgAxisSafety to check safe position settings.

Always backup current parameters before making changes

Verify positionMatch Parameter

Check the positionMatch value matches the actual safe test position for the affected axis.

Incorrect safe positions can cause collisions during testing

Validate positionDiffRef Setting

Ensure positionDiffRef tolerance is appropriate for your machine's positioning accuracy and not too restrictive.

Test Position Validation

Move axis manually to the intended test position and verify the position matches the configured safe parameters.

Check MP_signCorrActualVal

Navigate to MOD → Machine Parameters and verify MP_signCorrActualVal matches your encoder feedback direction.

Use +1 for normal direction, -1 for inverted feedback

Verify MP_signCorrNominalVal

Confirm MP_signCorrNominalVal parameter matches your motor drive direction configuration.

Validate Motor Table DIR Column

Check the DIR column entry in the motor table corresponds to actual axis movement direction.

Wrong direction settings can cause runaway conditions

Perform Direction Test

Execute small incremental moves in both directions to verify position feedback matches commanded movement.

Visual Inspection

Check for physical obstructions, debris, or mechanical binding preventing axis movement to test position.

Ensure machine power is off before physical inspection

Manual Axis Movement

Use manual mode to slowly move axis to test position and observe for binding or irregular movement.

Check Servo Drive Status

Monitor servo drive LEDs and check for fault codes that might prevent accurate positioning.

Verify Position Accuracy

Use external measurement tools to confirm actual axis position matches TNC display values.

Check Reference Status

Verify axis reference status in the position display - unreferenced axes show blinking position values.

Execute Reference Procedure

Perform complete reference point approach using the REF function for the affected axis.

Ensure reference switches are clean and properly adjusted

Validate Reference Parameters

Check reference point machine parameters MP_refPointCoord and MP_refMoveDir are correctly configured.

Test Position Repeatability

Move axis away from and back to test position multiple times to verify consistent positioning.