Siemens SINUMERIK 840D sl Programming Manual

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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: Activate master value coupling
LEADOF: Deactivate master value coupling
<following axis>: Following axis
<leasing axis>: Leading axis
Work preparation
3.16 Axis couplings
NC programming
912 Programming Manual, 12/2019, 6FC5398-2EP40-0BA0

Siemens SINUMERIK 840D sl Specifications

General

Control Type	CNC
Number of Axes	Up to 31
Max Number of Channels	10
Interfaces	Ethernet, PROFIBUS, PROFINET, USB
Interpolation	5-axis interpolation
Operating Temperature	0°C to 45°C
Relative Humidity	Up to 95% (non-condensing)
Display	TFT color display, various sizes
Programming Languages	DIN/ISO
Safety Features	Safety Integrated
PLC	Integrated PLC S7-300
Drive Interface	SINAMICS S120
Data Storage	CF card, USB
Operating System	Windows-based