Siemens SINUMERIK 840D sl Programming Manual page 207
Measuring cycles hmi sl
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N710 CYCLE978
N720 G57
N730 X-20 Y-20
N740 Y25
N750 _MA=1
N760 CYCLE978
N770 G57
N780 Z20
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.
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N1000 M2
Comment about CYCLE800
The swivel cycle CYCLE800 is used to measure and operate on any surface by converting
the active workpiece zero and the active tool offset to the oblique surface in the cycle by
calling the relevant NC functions, taking account of the kinematic chain of the machine, and
positioning the rotary axes.
Cycle CYCLE800 is not part of the "measuring cycle package" but of the "standard cycles".
Explanation of example
● CYCLE998 (2 angle measurement) measures the oblique workpiece surface and an
● After CYCLE800 has been called, axes X, Y, and Z and the rotary axes involved are
● Subsequent measurement with ZO in the –Z' direction with CYCLE978 zeroes the
● Determining the angular position of the front workpiece edge with respect to the X'
● Then the workpiece zero is precisely defined in the plane by measuring with the ZO in the
● After that, remachining can begin on the setup surface.
Measuring cycles
Programming Manual, 03/2009 Edition, 6FC5398-4BP10-2BA0
5.7 CYCLE998 workpiece: Angle measurement and ZO determination
offset is entered in the rotation part of the ZO memory G57.
positioned such that the probe is perpendicular above the oblique workpiece surface.
workpiece surface in the Z' direction.
direction and offset in the ZO memory G57 with CYCLE998 aligns the front edge
paraxially with the X' direction.
+X' direction and +Y' direction with CYCLE978.
Measuring Cycles for Milling and Machining Centers
;ZO determination on surface with meas.
;in +Y' direction and ZO in G57 for
;setting the zero in Y'
;Activate the changed ZO G57
;Place in front of the left edge
;Measure in +X'
;ZO determination on surface, measurement
;in ;+X' direction, and ZO correction in G57
;memory
. Measurement path 10 mm in front of
;up to 10 mm behind expected edge to
;set zero in X'
;Activate the changed ZO G57
;Raise in Z
;The oblique surface is now completely set
up
;End of program
207
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