Axis Couplings; Coupled Motion (Trailon, Trailof) - Siemens SINUMERIK 840D sl Programming Manual

3.16

Axis couplings

3.16.1

Coupled motion (TRAILON, TRAILOF)

When a defined leading axis is moved, the coupled motion axes (= following axes) assigned to
it traverse through the distances described by the leading axis, allowing for a coupling factor.
Together, the leading axis and following axis represent coupled axes.
Applications
● Traversal of an axis by means of a simulated axis. The leading axis is a simulated axis and
the coupled axis a real axis. In this way, the real axis can be traversed as a function of the
coupling factor.
● Two-sided machining with two coupled motion groups:
1. leading axis Y, coupled motion axis V
2. leading axis Z, coupled motion axis W
Syntax
TRAILON(<following axis>,<leading axis>,<coupling factor>)
TRAILOF(<following axis>,<leading axis>,<leading axis 2>)
TRAILOF(<following axis>)
Meaning
TRAILON:
<following axis>:
<leasing axis>:
NC programming
Programming Manual, 12/2019, 6FC5398-2EP40-0BA0
Axis
Y
Axis
Z
Axis
X
Command for activating and defining a coupled axis grouping
Effective:
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
Axis
V
Axis
W
Modal
Work preparation
3.16 Axis couplings
891