9
Path Traversing Behavior 08.97
9.2 Cou
led motion TRAILON
TRAILOF
9
840D
NCU 571
840D
NCU 572
NCU 573
FM-NC
810D
840Di
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Siemens AG 2000. All rights reserved
9-310
SINUMERIK 840D/840Di/810D/FM-NC Programming Guide Advanced (PGA) – 04.00 Edition
Programming example
The workpiece is to be machined on two sides with
the axis configuration shown in the diagram. To do
this, you create 2 combinations of coupled axes.
Axis
Axis
Axis
Axis
Axis
X
Y
Z
V
W
…
N100 TRAILON(V,Y)
Activate 1st combined axis pair
N110 TRAILON(W,Z,–1)
Activate 2nd combined axis pair, coupling
factor negative: trailing axis traverses in
opposite direction to leading axis
N120 G0 Z10
Infeed of Z and W axes in opposite axis
directions
N130 G0 Y20
Infeed of Y and V axes in same axis
directions
…
N200 G1 Y22 V25 F200
Superimpose dependent and independent
movement of trailing axis "V"
…
TRAILOF(V,Y)
Deactivate 1st coupled axis
TRAILOF(W,Z)
Deactivate 2nd coupled axis
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