Siemens SINUMERIK 840Di Function Manual page 738

Detailed Description
2.1 Axes
Example
In the example below, it is assumed that there are 6 channel axes with channel axis names
XX, YY, ZZ, U, V, W and three geometry axes with names X, Y, Z. The basic setting is
defined in machine data such that the geometry axes are imaged on the first three channel
axes, i.e., on XX, YY and ZZ.
GEOAX()
G0 X0 Y0 Z0 U0 V0 W0
GEOAX (1, U, 2, V, 3, W)
GEOAX(1, XX, 3, ZZ)
G17 G2 X20 I10 F1000
GEOAX(2,W)
G17 G2 X20 I10 F1000
GEOAX()
GEOAX (1, U, 2, V, 3, W)
G1 X10 Y10 Z10 XX=25
GEOAX(0,V)
GEOAX (1, U, 2, V, 3, W)
GEOAX(3,V)
2-8
; The geometry axis assignment defined via the machine
data
MD AXCONF_GEOAX_ASSIGN_TAB
is effective,
i.e., XX, YY and ZZ become geometry axes.
; All the axes in rapid traverse to position 0.
; Channel axis U becomes the first, V the second and W
the third geometry axis.
; Channel axis XX becomes the first, ZZ the third
geometry axis. The second geometry axis remains
unchanged.
; Semicircle in the X, Y plane. Channel axes XX and V
traverse.
; Channel axis W becomes the second geometry axis. The
first and third geometry axes remain unchanged.
; Full circle in the X, Y plane. Channel axes XX and W
traverse.
; The geometry axis assignment defined via the machine
data
MD AXCONF_GEOAX_ASSIGN_TAB
is effective,
i.e., XX, YY and ZZ become geometry axes.
; U, V and W become the first, second and third
geometry axes.
; Channel axes U, V, W each traverse to position 10,
XX traverses to position 25.
; V is again removed from the geometry axis grouping.
U and W remain geometry axes. The second geometry
axis is no longer assigned.
; U, V and W become the first, second and third
geometry axes, i.e., U and W remain unchanged.
; V becomes the third geometry axis. This means that
W, which was previously the third geometry axis, is
removed from the geometry axis grouping. The second
geometry axis is no longer assigned.
Function Manual, 08/2005 Edition, 6FC5397-0BP10-0BA0
Axis Types, Coordinate Systems, Frames (K2)