Lead Link Axes; General Information - Siemens SINUMERIK 840D sl Function Manual

Gantry axis
A gantry axis cannot be a container axis.
Travel to fixed limit
If a container axis is at the limit stop, no axis container rotation can be performed.
Drive alarms
If a drive alarm is pending for a container axis, the axis container rotation is not performed.
3.2.5

Lead link axes

3.2.5.1

General information

If, for an axis coupling, the the machine axes of the leading and following axes are not
connected to the same NCU, the coupling must be established using a link axis of the NCU of
the following axis. In this case, the link axis is designated as lead-link axis.
The setpoints of the master axis are transferred synchronously in the interpolator cycle via the
NCU link to the lead-link axis. Similarly, in the opposite direction, the actual values and the
status data of the lead-link and the following axis are transferred to the leading axis.
The lead-link axis is parameterized as local leading axis of the following axis.
Figure 3-20
Extended Functions
Function Manual, 10/2015, 6FC5397-1BP40-5BA3
Lead-link axis
B3: Distributed systems - 840D sl only
3.2 NCU link
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