Rockwell Automation 8520-MUM 9/Series CNC Mill Operation and Programming Manual Documentation Set - Manual (Page 801)

Chapter 30
Using a 9/Series Dual--processing System
30-33
Other restrictions are as follows:
If the dual axis is currently: Then:
performing a manual motion (including
continuous, incremental, or handwheel jog,
homing, jog on the fly, or angled jogs) the request to decouple that axis is ignored until the manual
motion is completed
‚
being positioned by the PAL axis mover the request to decouple that axis is ignored until the PAL axis
mover has completed moving the dual axis
‚
in the active plane and cutter compensation is
active the request to decouple that axis is ignored until the plane is
changed or cutter compensation is de-activated
‚
used to perform CSS calculations (the dual axis
has been assigned as the CSS axis and the
control is currently in CSS mode) the request to decouple that axis is ignored until CSS mode is
canceled
‚
in a process that is performing a jog retract or
block retrace the dual axes can not be decoupled. This is independent of
whether the dual axis is involved in the jog retract or block
retrace operation
‚
in a process that is performing a program interrupt a dual axis can not be switched into or out of the process
‚
involved in a modal fixed cycle (such as drilling,
pockets, or 7300 cycles) the request to change processes is ignored until the cycle is
canceled
‚
‚ The request for an axis to change processes is ignored until the prohibiting feature is completed or canceled.
Then the change in process only takes place provided the request for the axis change is still true.
When coupled all axes of a dual group are programmed by the name of the
AMPed master axis. Axes in a dual axis group can be programmed as
independent axes once they have been decoupled. Once decoupled each
axis gets its own independent axis name and integrand letter (defined in
AMP) as opposed to the dual axis group name and integrand used to
program the axis when coupled. For example a dual group consisting of
two axes is programmed with a X axis name. Once the dual group is
decoupled both axes in the dual group are programmed with their own axis
name X and W.
Important: Once an axis has been decoupled from the dual group it still
retains many traits from the original dual group. Features such as acc/dec,
maximum feedrates, jog feedrates and jog increments are all adopted from
the original group.
Shared axes that have been decoupled from a dual group can change
processes. Once a shared axis is controlled by another process it can not
be recoupled with the dual group until it returns to its original default
process.
Slave axes can be defined in active primary or parallel planes (G17, G18,
or G19) however the plane containing a slave axis can not be activated
unless the dual group is decoupled and the slave axis is in the process
requesting the plane.
30.7.2
Independently Programming
Dual Axis Members