Siemens SINUMERIK 840D sl Programming Manual page 912

Work preparation
3.16 Axis couplings
The leading axis is the axis which supplies the input values for the curve table. The following
axis is the axis, which takes the positions calculated by means of the curve table.
Actual value and setpoint coupling
The following can be used as the master value, i.e. as the output values for position calculation
of the following axis:
● Actual values of the leading axis position: Actual value coupling
● Setpoints of the leading axis position: Setpoint value coupling
The master value coupling always applies in the basic coordinate system.
For information on the creation of curve tables, see Section "Curve tables".
Syntax
LEADON(<following axis>,<leading axis>,<n>)
LEADOF(<following axis>,<leading axis>)
or deactivation without specifying the leading axis:
LEADOF(<following axis>)
The master value coupling can be activated/deactivated both from the part program and also
during motion from synchronized actions.
Meaning
LEADON:
LEADOF:
<following axis>:
<leasing axis>:
912
Y
X
Activate master value coupling
Deactivate master value coupling
Following axis
Leading axis
Programming Manual, 12/2019, 6FC5398-2EP40-0BA0
NC programming