Siemens SINUMERIK 840D sl Programming Manual page 376

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Path traversing behavior

9.2 Coupled motion (TRAILON, TRAILOF)

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.

N100 TRAILON(V,Y)

N110 TRAILON(W,Z,–1)

N200 G1 Y22 V25 F200

TRAILOF(V,Y)

TRAILOF(W,Z)

Coupled 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 axis can be programmed with the full range of available motion commands

(G0, G1, G2, G3, ...). The coupled axis not only traverses the independently defined paths,

but also those derived from its leading axes on the basis of coupling factors.

;Activate 1st coupled axis grouping

;Activate 2nd combined axis pair, coupling factor negative:

;Trailing axis traverses in opposite direction to leading

;Infeed Z and W axes in opposite axial directions

;Infeed of Y and V axes in same axis directions

;Superimpose dependent and independent movement of trailing

;Deactivate 1st coupled axis grouping

;Deactivate 2nd coupled axis grouping

Programming Manual, 03/2006 Edition, 6FC5398-2BP10-1BA0

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