Rockwell Automation 8520 9/Series CNC Lathe - Manual (Page 778)

Chapter 30
Using a 9/Series Dual--Processing System
30-38
Figure 30.15
Dual- Axis Configuration
Axis 1
Lead screw
Servo
motor
Axis 2
Lead screw
Servo
motor
Encoder
Dual Axes - two completely separate
axes responding to the same
programming commands.
Encoder
The 9/Series control supports two groups of dual axes. This is the total
number of groups allowed on the system for both processes (i.e. two
groups in one process or one group in each process).
Dual--axis operation on dual processing systems is virtually identical to
dual--axis operation on single processing systems (see chapter 20 for
details). The difference occurs on dual processing system when one or
more of the axes in the dual group is configured as a shared axis between
processes.
A dual--axis group is assigned in AMP to a specific process. All axes in
the dual group must be configured to be part of the dual--axis group and
must be AMPed to be in the same process (called the default process for
the group). Dual axes can only exist as a dual group in their respective
default process. You can not share a dual group as an axis with another
process. You can only share the independent members of the dual group
with another process once the group is decoupled.
Coupling/Decoupling allows all axes in a dual--axis group to be either:
- coupled as a dual--axis group
- decoupled so each axis in the dual group can be programmed as an
independent axis.
30.7.1
Decoupling a
Dual- Axis Group