General Functionality - Siemens SINUMERIK 840D Function Manual

M3: Coupled axes
14.1 Coupled motion
However, for basic operation of generic coupling, the following restrictions apply:
● The maximum number of coupled motion groupings is limited to 4.
● Only 1 leading axes may be assigned to each coupled motion axis.
● Cascading is not possible.
Note
These restrictions do not apply when NC software is supplied with the relevant options of
generic coupling (refer to " Preconditions " in the "Brief description" of generic coupling).
14.1.2

General functionality

The "Coupled motion" function allows the definition of simple axis couplings. Coupling is
performed from one leading axis to one or more following axes, the so-called coupled motion
axes. A separate coupling factor can be specified for each coupled motion axis.
Coupled axis grouping
The leading axis and all the coupled motion axes assigned to it together form a coupled axis
grouping. If the leading axis is traversed, all coupled motion axes traverse in accordance with
their coupling factors.
A coupled axis grouping can consist of any combination of linear and rotary axes.
Leading axes
Any axis of the NC, including simulated axes, can be used as leading axis.
Coupled axes
Any axis of the NC can be used as coupled motion axis.
Coupling factor
The ratio in which the coupled motion axis moves in relation to the leading axis is specified via
the coupling factor.
Coupling factor K = motion of the coupled motion axis / motion of the leading axis
Negative coupling factors (motion of the coupled motion axis in the opposite direction) are also
permitted.
420
Axes and spindles
Function Manual, 06/2019, A5E47437747B AA