Siemens SINUMERIK 840D sl Programming Manual page 323

Calibration principle
The switching position of the workpiece probe in an axis is calculated into the measuring
probe length. The trigger values calculated in this way (relative to ball center) is then entered
in the corresponding array _WP[ ] of array GUD6.DEF for the associated probe _PRNUM
(_WP[_PRNUM-1,...]).
For a complete description of the array _WP[ ] of a workpiece probe, refer to Chapter "Data
description", "Central values".
Programming
CYCLE973
Measuring variants
Measuring cycle CYCLE973 permits the following calibration variants which are specified via
parameter _MVAR.
Digit
5
-
0
1
Note
When _MVAR=x1x13 calibration is only performed in one direction. It is not possible to
determine position deviation or calculate probe ball.
Tolerance parameters _TSA and _TZL must be entered taking into account machine data
• MD 20360 TOOL_PARAMETER_DEF_MASK bit0 and bit1
in conjunction with the offset target
• geometry and wear.
.
Measuring cycles
Programming Manual, 03/2009 Edition, 6FC5398-4BP10-2BA0
Significance
4 3 2 1
- - - 0 Calibration on surface (workpiece-related)
1 3 Calibrate in groove (machine-related)
1 3 Without determining position deviation of probe
1 3 With determining position deviation of probe
1 1 3 1 axis direction (specify meas. axis _MA and axis direction _MD )
2 1 3 2 axis directions (specify measuring axis _MA)
0 1 3 Without determining diameter of probe ball
1 1 3 Determining diameter of probe ball
Measuring Cycles for Turning Machines
6.4 CYCLE973 Calibrating workpiece probes
323