Siemens SINUMERIK 840D sl Programming Manual page 109

Calibration is performed in this sequence:
• applicate, +abscissa, –abscissa,
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.
This sequence applies to
_TP[_PRNUM-1, 7]=133 or _TPW[_PRNUM-1, 7]=133:
probe in Z axis can only be calibrated in minus direction, X, Y, in both directions.
Value _TP[k, 7] or _TPW[k, 7] =133 is the default value.
If some axes or axis directions on the probe cannot be approached the value must be
changed.
Significance:
Decimal point
Value
Example _TP[k, 7]=123:
X in both directions,
Y only in plus direction,
Z can only be calibrated in minus direction.
It must always be possible to approach the tool axis (applicate, for example, Z axis for G17)
in the minus direction. Otherwise, automatic calibration is not possible.
The sequence described above changes according to the value of _TP[k, 7] or _TPW[k, 7].
Measuring cycles
Programming Manual, 03/2009 Edition, 6FC5398-4BP10-2BA0
+ordinate, –ordinate;
ones 1. geometry axis (X)
tens: 2. geometry axis (Y)
hundreds: 3. geometry axis (Z)
Measuring Cycles for Milling and Machining Centers
5.2 CYCLE971 tool: Measuring milling tools, drills
0: axis not possible
1: only minus direction possible
2: only plus direction possible
3: both directions possible
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