61417

Verify the current position of all axes in the measuring cycle using the PLC diagnostics menu (Menu > Diagnostics > Axis Position). Document the X, Y, Z coordinates displayed on the HMI or via SCOUT/SINUMERIK Operate.

Check the probe offset and geometry in the tool management (MD10050 - tool table structure). Confirm the probe diameter and stylus length are correctly entered. Measure physical probe dimensions and compare against stored values.

Incorrect probe geometry in the tool table is the primary source of false collision warnings.

Move all cycle axes to a safe, known position away from the workpiece and carrier using a manual JOG command (NCK > Manual > Jog) or a setup block in the part program (G00 X__ Y__ Z__) before calling CYCLE973.

Re-execute CYCLE973 and monitor the HMI feedback. If alarm 61417 no longer triggers, the issue was initial position dependent.

Access the Siemens SINUMERIK Operate interface and navigate to Machine > Probe Data. Verify that the correct probe (tool number) is assigned and active in the part program via the TOOL DEF statement or M06 tool change command.

Compare MD20051 (probe tool number assignment) and the corresponding tool offset entry (from MD10050 table) with the physical probe serial number or calibration certificate. Confirm diameter and length values match within ±0.1mm.

Use a calibrated probe length/diameter gauge to physically verify probe dimensions.

If discrepancies are found, re-enter the correct probe geometry into the tool offset table via the HMI (Machine > Tool Management) or via DNC upload using SINUMERIK Operate. Save changes to non-volatile memory (Ctrl+S or File > Save).

Power cycle the 840D control (warm restart via Menu > Maintenance > System > Restart) to ensure NCK machine data is reloaded, then retry CYCLE973.

In SINUMERIK Operate, navigate to Machine > Probe Setup or Measuring Data. Check if a carrier/fixture boundary is defined. Common parameters include MD20061 (safety clearance distance) and MD20062 (carrier offset).

Verify the machine zero point (M0 position) is correctly set using the DRO (Digital Readout) on the HMI. Physical measure the carrier or fixture position relative to the spindle/probe and compare against the configured offsets. Recalibrate machine zero if necessary using the Siemens setup procedure (Menu > Diagnostics > Reference Point).

If using custom fixture offsets, confirm they are loaded in the active program via FIXTURE statement or G54–G59 fixture offsets. Cross-check against the part drawing or CAM post-processor output.

Update or add the carrier boundary geometry to machine data (typically via MD20060 range or fixture table) using the control's configuration tools, then power cycle and retest.