Siemens SINUMERIK 840D sl Programming Manual page 317

Measuring variant
Example 3:
Axial position,
R ≠ 0,
Measuring without
reversal,
4 measurements
necessary
_MVAR=3002
The probe travels around
the measuring cube
opposite the starting
position side.
Note on example 3:
Length measurements for L2 (P1, P2) are performed here at the same measuring point 1, without
rotating the spindle by 180 degrees. The same cutting edge is always measured (starting angle
_STA1).
Example 4:
Radial position,
R ≠ 0
Measuring without
reversal,
4 measurements
necessary
_MVAR=13002
The probe travels around
the measuring cube
opposite the starting
position side.
Note on example 4:
Length measurements for L1 (P3, P4) are performed here at the same measuring point 1, without
rotating the spindle by 180 degrees. The same cutting edge is always measured (starting angle
_STA1).
For measuring variants _MVAR=0x3xx2 and _MVAR=0x4xx2 (measure upper cutting edge
automatically), the cutting mill must have suitable geometric dimension (end mill/cutter
radius) for approaching the center of the probe with the cutting edge without collision.
No check is made for suitability of the milling cutter for this measuring variant. It is up to the
user to ensure this.
Measuring cycles
Programming Manual, Release 04/2006, 6FC5398-4BP10-0BA0
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
6-41