Rockwell Automation 8520 9/Series CNC Integration Maintenance Manual Documentation Set - Manual (Page 107)

Section 3A
Primary 9/230 Components
3A-24
There are two different digital 9/230 systems. One is used to support the
8520-xx series of digital amplifiers (its catalog number is 8520-DSP). The
other supports 1394-xx series of digital servo amplifiers (its catalog
number is 8520-CSP). Both 9/230 digital systems support a maximum of
three axes, each having a servo motor and feedback device, and an open
loop spindle motor.
The servo amplifier amplifies the signal from the 9/230 processor in order
to deliver the power necessary to drive the servo motors.
Position and velocity data are read from a feedback device that is mounted
on the servo motor. If the spindle motor incorporates an encoder it must
supply spindle position feedback to the processor module.
Axes are connected to the D-shell connectors that are at the bottom edge of
the processor board. Axes must be connected consecutively with no empty
connections between axes. If a spindle with feedback is configured the
spindle must be connected to the first available D-Shell connector after the
last connector used by a linear or rotary axis.
Figure 3A.16 and Figure 3A.17 show typical digital servo drive
configurations for a 8520 system and a 1394 system respectively. For
specific details on configuring axes, axis positioning loops, and axis port
selection, refer to the 9/Series CNC AMP Reference Manual, publication
8520-6.4.
3A.7
Servo Axis Connectors on
the 9/230 Digital CNC
3A.7.1
Connecting Axes to Digital
Servo Interface