Siemens SINUMERIK 840D sl Programming Manual page 892

Work preparation
3.16 Axis couplings
<coupling factor>:
TRAILOF:
Note
Coupled axis motion is always executed in the base coordinate system (BCS).
The number of coupled axis groupings which may be simultaneously activated is limited only
by the maximum possible number of combinations of axes on the machine.
892
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 tra‐
verse 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 two leading axes, TRAILOF can be called with
three 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, 12/2019, 6FC5398-2EP40-0BA0
NC programming