Siemens sinumerik 840d Programming Manual page 310

Path Traversing Behavior
9
9.2 Coupled motion TRAILON, TRAILOF
840D 840D
NCU 571 NCU 572
NCU 573
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.
...
N100 TRAILON(V,Y)
N110 TRAILON(W,Z,–1)
N120 G0 Z10
N130 G0 Y20
...
N200 G1 Y22 V25 F200
...
TRAILOF(V,Y)
TRAILOF(W,Z)
9-310
FM-NC 810D 840Di
Axis
Y
Axis
Z
Axis
X
Activate 1st combined axis pair
Activate 2nd combined axis pair, coupling
factor negative: trailing axis traverses in
opposite direction to leading axis
Infeed of Z and W axes in opposite axis
directions
Infeed of Y and V axes in same axis
directions
Superimpose dependent and independent
movement of trailing axis "V"
Deactivate 1st coupled axis
Deactivate 2nd coupled axis
SINUMERIK 840D/840Di/810D/FM-NC Programming Guide Advanced (PGA) – 04.00 Edition
08.97
9
Axis
V
Axis
W
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