Operational Sequence - Siemens SINUMERIK 840D sl Programming Manual

5.2.4.3

Operational sequence

Position before measuring cycle call
The position before measuring cycle call can be anywhere, but:
The cycle must be able to position the 1st calibration point at distance _FA above the center
of the probe without collision.
The cycle approaches this point in the axis sequence: applicate (tool axis) followed by axis of
the plane.
All subsequent traversing movements are also performed by the measuring cycle with
"automatic calibration" using the values entered in array _TP[ ] or TPW[ ] of the probe and
the dimensions of the active calibration tool.
Calibration is performed in this sequence:
• –applicate, +abscissa, –abscissa, +ordinate, –ordinate;
then finally again in
• –applicate, but now in the located center.
For G17, for example, these are the axes: –Z, +X, –X, +Y, –Y, –Z.
Calibration in the plus direction of the abscissa is performed after ascertaining the center of
the probe in the ordinate. Additional movements are performed in the plane.
Measuring cycles
Programming Manual, Release 04/2006, 6FC5398-4BP10-0BA0
Measuring Cycles for Milling and Machining Centers
5.2 CYCLE971 tool: Measuring milling tools, drills
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