Operational Sequence - Siemens SINUMERIK 840D sl Programming Manual

5.7.3.4

Operational sequence

Position before measuring cycle call
Before the cycle is called, the probe must be positioned over the 1st measuring point (P1) in
the plane and at the appropriate depth in the applicate. The measuring axis is always the
applicate. Measuring point P1 must be selected in the plane such that _ID and _SETV[0]
result in positive values.
Procedure for variant "intermediate positioning at an angle" (MVAR=106):
After completion of the measurement in P1 the probe is positioned at P2 in the abscissa and
applicate (X and Z in G17) taking angle _INCA and maximum deviation in _TSA into account.
After the measurement has been performed in P2, repositioning to P1 is performed by the
same path. Then the probe is positioned from P1 to P3 in the ordinate and applicate (Y and
Z in G17) taking account of angle _STA1 and maximum deviation in _TSA and then
measured.
Procedure for variant "intermediate positioning parallel to axis" (MVAR=100106):
Positioning from P1 to P2 is performed in the abscissa, from P1 to P3 in the ordinate.
It must also be possible to reach P2 and P3 from starting position P1 in the applicate (in Z in
G17) without collision.
Position after end of measuring cycle
After completion of the measuring operation, the probe will always be amount _FA
(MVAR=106) above the 3rd measuring point in the applicate or, if _ MVAR= 100106, at the
initial height (positioning height).
Measuring cycles
Programming Manual, Release 04/2006, 6FC5398-4BP10-0BA0
Measuring Cycles for Milling and Machining Centers
5.7 CYCLE998 workpiece: Angle measurement and ZO determination
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