70013

Review the NC block (%2) and verify the commanded axis position (%3). Cross-reference with machine drawing to confirm mechanical platform range.

Access SINUMERIK 840D HMI → Diagnosis → Axis Data → Machine Data. Navigate to MD 62126 (platform angle minimum) and MD 62127 (platform angle maximum) for the affected channel (%1).

Modify MD parameters only after confirming mechanical limits with machine builder documentation.

Adjust the NC program to constrain platform movements within [MD 62126, MD 62127] range, or verify MD values match actual machine mechanical stops (+/- tolerance).

Test with incremental positioning to confirm limits are respected. Use DRY RUN mode before executing production blocks.

On SINUMERIK 840D, navigate to HMI → Service → Parameters (or Diagnosis → Machine Data). Locate axis-specific MD 62126 and MD 62127 for the channel (%1).

Verify parameter values against the original machine OEM manual and commissioning record. Confirm sign convention: MD 62126 < MD 62127 (negative to positive, or vice versa depending on machine orientation).

If discrepancy detected, correct MD values and perform POWER CYCLE (full NCK restart) to ensure new parameters are loaded into active memory.

Backup current machine data before modification. Invalid angle limits can cause mechanical collisions.

After parameter correction, jog the platform axis to both mechanical limit positions and document the actual angles reached. Update MD 62126/62127 with measured values plus safety margin (typically ±2–5°).

Check if the affected block uses G91 (incremental) or G90 (absolute) positioning. For rotary axes, review whether the move is compensating for a previous offset stored in SD (setting data) or G54–G59 work offset.

Access HMI → Diagnosis → Active Setting Data (SD) or Parameters. Check SD 42410 (axis offset for platform) and MD 30150 (reference point offset). Verify current platform zero position aligns with machine home.

If wrap-around is required (e.g., multi-turn platform), verify MD 32100 (enable wrap-around) is set to 1 for the platform axis, and confirm MD 62126/62127 define one complete revolution or required range.

Wrap-around changes axis behavior significantly; test thoroughly in DRY RUN before production use.

Re-reference the platform axis using machine home cycle (G28) or manual jog to a known mechanical position, then update work offset (G54) to re-establish correct origin. Retry NC program.