Siemens SINUMERIK 840D sl Programming Manual page 299

Examples of measuring variants
Measuring variant
Example 1:
Axial position,
R ≠ 0,
Measuring without
reversal,
spindle stationary,
4 measurements
necessary
_MVAR=2
Note on example 1, process:
P1 is approached with the starting angle position _STA1 of the milling spindle and measured. As the
spindle is stationary (M5) and reversal measurement is not selected, the spindle is rotated by 180
degrees and the same cutting edge is measured again after it has been positioned in the center of
the measuring cube. The mean value of both measurements is L2.
Then P3 is approached and measured, after that the spindle is again rotated by 180 degrees and P4
is measured. L1 and R are calculated from these two measurements. The probe is then retracted to
the starting point in axis sequence abscissa/ordinate.
Example 2:
Radial position,
R ≠ 0
measuring with reversal,
8 measurements
necessary (P1 to P4
each with reversal)
_MVAR=10102
Measuring cycles
Programming Manual, 03/2009 Edition, 6FC5398-4BP10-2BA0
6.3 CYCLE982 tool: Measure turning and milling tools
Specified Offset applied
geometry in
L1=... L1
L2=... L2
R=... R
L1=
(P3x + P4x)/2
L2=
(P1z + P2z)/2
R=ABS(P3x-
P4x)/2
L1=... L1
L2=... L2
R=... R
L1=
(P3x + P4x)/2
L2=
(P1z + P2z)/2
R=ABS(P1z-
P2z)/2
Measuring Cycles for Turning Machines
Milling tools
299