Siemens SINUMERIK 840D sl Programming Manual page 205

Starting position before the measurement
For "axis by axis" calibration, from the starting position, the cycle calculates the approach
distance to the probe and generates the appropriate traversing blocks. It must be ensured
that a collision-free approach is possible.
Figure 2-32
①
②
Note
Calibrating in the 3rd axis of the measuring plane
If the tool diameter is smaller than the upper diameter of the probe, then the calibration tool
is always positioned at the center of the probe.
If the tool diameter is larger, the calibration tool is positioned, offset by the tool radius, to the
center of the probe. The value of the offset is subtracted.
For "complete" calibration, the position before the cycle call should be selected so that a
collision-free, centered approach is possible above the probe center by measuring path DFA.
The axis sequence for the approach is first the tool axis (3rd axis) followed by the axes of the
plane.
Position after the end of the measuring cycle
For "axis by axis" calibration, the calibration tool is positioned above the measuring surface
by measuring path DFA.
For "complete" calibration, the calibration tool is positioned about the center of the probe by
measuring path DFA.
Measuring cycles
Programming Manual, 02/2011, 6FC5398-4BP40-0BA0
1
Starting positions for calibration in the plane, example: G17
General SD 54626 $SNS_MEA_TP_TRIG_PLUS_DIR_AX1
General SD 54625 $SNS_MEA_TP_TRIG_MINUS_DIR_AX1
2
Measuring variants
2.5 Measure tool (milling)
205