Siemens Sinumerik 840D sl Programming Manual page 509

Example
The workpiece is to be machined on two sides with the axis configuration shown in the
diagram. To do this, you create two combinations of coupled axes.
Program code
...
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)
Further Information
Axis types
A coupled axis grouping can consist of any desired combinations of linear and rotary axes. A
simulated axis can also be defined as a leading axis.
Coupled-motion axes
Up to two leading axes can be assigned simultaneously to a trailing axis. The assignment is
made in different combinations of coupled axes.
A coupled-motion axis can be programmed with the full range of available motion commands
(G0, G1, G2, G3, etc.). The coupled axis not only traverses the independently defined paths,
but also those derived from its leading axes on the basis of coupling factors.
Job planning
Programming Manual, 02/2011, 6FC5398-2BP40-1BA0
9.1 Coupled motion (TRAILON, TRAILOF)
Comments
; Activation of 1st coupled axis grouping
; Activation of 2nd coupled axis grouping, Negative
coupling factor: Coupled-motion axis traverses in the
opposite direction from leading axis.
; Infeed of Z and W axes in opposite axial directions.
; Infeed of Y and V axes in same axis ?direction.
; Overlaying of a dependent and independent movement of
coupled motion axis V.
; Deactivation of 1st coupled axis grouping.
; Deactivation of 2nd coupled axis grouping.
Axis couplings
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