Rockwell Automation 8520-ARM2 9/Series CNC AMP Reference Manual Documentation Set - Manual (Page 630)

Deskew Parameters
Chapter 36
36-4
ATTENTION: Whenever two servos are configured to drive
one axis, you must use the deskew feature to control servo
misalignment. Failure to consider possible servo misalignment
may result in damage to drive components.
Each split axis can be driven by a maximum of two servo motors. The
control supports two split axis pairs in a 9/Series system. Dual process
systems can also have two split axis pairs total, however, only one pair per
process is allowed.
Aside from the parameters in this deskew group, you must configure the
servos that drive the split axis as normal independent servos, including:
separate feedback devices
feedback directions
loop type
axis name
Each servo axis has its own port configured for command, position, and
velocity. When configuring a split axis, keep the following in mind:
If then the slave and the master servo
One or more
spindles are
configured in AMP
must be AMP’d as the highest axis numbers in
each process before spindles. Spindles must be
the highest axis numbers used on a system.
can be configured as any axis before the
slave axis.
No spindles are
configured
must be AMP’d as the highest axis number used in
the process
can be configured as any axis before the
slave axis
Each servo in the split axis can be configured with independent:
Reversal Error values
Axis Calibration points
Home Calibration values
Many parameters, such as Acc/Dec, feedrates, etc., are shared between the
master servo and slave servo. These shared parameters are listed in this
chapter. (Deskew Master Servo Name).