Axis Couplings - Siemens SINUMERIK 840D sl Programming Manual

Axis couplings

9.1 Coupled motion (TRAILON, TRAILOF)
Significance
TRAILON
<following axis>
<leading axis>
<coupling factor>
TRAILOF
572
Command for activating and defining a coupled axis grouping
Active: modal
Parameter 1: Axis name of trailing axis
Note:
A coupled-motion axis can also act as the leading axis for other
coupled-motion axes. In this way, it is possible to create a range of
different coupled axis groupings.
Parameter 2: Axis name of trailing axis
Parameter 3: Coupling factor
The coupling factor specifies the desired relationship between the
paths of the coupled-motion axis and the leading axis:
<coupling factor> = path of coupled-motion axis/path of leading axis
Type: REAL
Default: 1
The input of a negative value causes the master and coupled axes
to traverse in opposition.
If a coupling factor is not programmed, then coupling factor 1
automatically applies.
Command for deactivating a coupled axis grouping
Effective: modal
TRAILOF with 2 parameters deactivates only the coupling to the
specified leading axis:
TRAILOF(<following axis>,<leading axis>)
If a coupled-motion axis has 2 leading axes, TRAILOF can be called
with 3 parameters to deactivate both couplings.
TRAILOF(<following axis>,<leading axis>,<leading axis 2>)
Programming TRAILOF without specifying a leading axis produces
the same result:
TRAILOF(<following axis>)
Programming Manual, 06/2009, 6FC5398-2BP20-0BA0
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