7
08.97 Transformations
7.8 Switchable
eometr
axes
GEOAX
7
840D
NCU 572
NCU 573
810D
840Di
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Siemens AG 2000. All rights reserved
SINUMERIK 840D/840Di/810D/FM-NC Programming Guide Advanced (PGA)
−
04.00 Edition
7-261
Programming example
A machine has six channel axes called XX, YY, ZZ,
U, V, W. The basic setting of the geometry axis
configuration in the machine data is:
Channel axis XX = 1st geometry axis (X axis)
Channel axis YY= 2nd geometry axis (Y axis)
Channel axis ZZ = 3rd geometry axis (Z axis)
N10 GEOAX()
Basic configuration of the geometry axes is active.
N20 G0 X0 Y0 Z0 U0 V0 W0
All axes to position 0 in rapid traverse.
N30 GEOAX(1,U,2,V,3,W)
Channel axis U is the first (X), V is the second (Y), W is
the third geometry axis (Z).
N40
GEOAX(1,XX,3,ZZ)
Channel axis XX is the first (X), ZZ is the third geometry
axis (Z). Channel axis V remains the second geometry
axis (Y).
N50 G17 G2 X20 I10 F1000
Full circle in the X, Y plane. Channel axes XX and Y
traverse.
N60 GEOAX(2,W)
Channel axis W becomes the second geometry axis (Y).
N80 G17 G2 X20 I10 F1000
Full circle in the X, Y plane. Channel axes XX and W
traverse
N90 GEOAX()
Reset to initial setting
N100 GEOAX(1,U,2,V,3,W)
Channel axis U is the first (X), V is the second (Y), W is
the third geometry axis (Z).
N110 G1 X10 Y10 Z10 XX=25
Channel axes U, V, W each travel to position 10, XX as
the auxiliary axis travels to position 25.
N120 GEOAX(0,V)
V is removed from the geometry axes group. U and W
are still the first (X) and third geometry axis (Z). The
second geometry axis (Y) remains unassigned.
N130 GEOAX(1,U,2,V,3,W)
Channel axis U remains the first (X), V becomes the
second (Y) and W becomes the third geometry axis (Z).
N140 GEOAX(3,V)
V becomes the third geometry axis (Z), W is overwritten
and therefore removed from the geometry axes group.
The second geometry axis (Y) is still unassigned.
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