5 Measuring Cycles for Milling Machines and Machining Centres 07.90
5.4.1 L978 ZO determination on surface (1-point measuring cycle)
Example: ZO determination on workpiece with cycle L978 in the X and Y axes
(Data as in Fig. 5.26)
ZO is to be checked on a workpiece as shown in Fig. 5.26. Any deviation from the selected
ZO caused by clamping tolerances is to be compensated for automatically by additive ZO to
enable machining of the workpiece to be started.
Probe length (Z axis) in TO memory D99 (value 50)
%MPF 9781
N5 G54 T200 T number probe; select ZO
N10 G00 G90 X-20 Y25 Position probe to face the
measuring surface in X/Y
N15 Z10 D99 Position probe in Z
Select TO
N20 R10=1 R11=10 R22=1 R23=0 Define parameters for measuring cycle
R25=0 R27=1 R28=2 R30=1
R32=0 R36=3
N25 L978 Cycle call for ZO determination
in X axis
N30 G00 X-20 Retract in X axis
N35 Y-20 Position in Y axis
N40 X50 Position in X axis
N45 R11=11 R30=2 Define parameters for measuring cycle
N50 L978 ZO determination in Y axis
N55 G00 Y-20 Retract in Y axis
N60 Z100 Retract in Z axis
N65 X-40 Y80 Retract in X/Y axis
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:
Machining centre program
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:
N900 M30
5–68 © Siemens AG 1990 All Rights Reserved 6FC5197- AB70
SINUMERIK 840/850/880 (BN)
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