Rockwell Automation 8520 9/Series CNC Integration Maintenance Manual Documentation Set - Manual (Page 204)

Section 4C
Connecting the 4-axis Servo Module
4C-6
Most analog servo drive amplifiers require some form of velocity feedback
from the servo motor. This feedback is usually generated by a tachometer
or resolver attached to the motor shaft. Refer to your servo drive amplifier
literature for details.
Figure 4C.4 and Figure 4C.5 show typical analog servo drive configurations
for a mill and a lathe. For specific details on configuring axes, axis
positioning loops, and axis port selection, refer to your AMP reference
manual.
Figure 4C.4
Typical Analog Servo Drive Configuration for a Mill
Analog Servo Module
(configured for
three axes and
one open loop
spindle)
Velocity feedback
Feedback
device
Feedback
device
Servo
Amplifier
(Axis 2)
Servo
Amplifier
(Axis 1)
Drive Signal
(Axis 3)
Drive Signal
(Axis 2)
Drive Signal
(Axis 1)
Velocity
Feedback
Servomotor
(Axis 1)
Servomotor
(Axis 2)
Spindle
drive
(Axis 3)
Term Panel
(Axis 2)
Term Panel
(Axis 1)
Term Panel
Spindle
motor
Servo
Amplifier
(Axis 3)
Encoder Power
Servomotor
(Axis 3)
Velocity
Feedback
Position feedback
Velocity
Feedback
9/260 or 9/290
Cabinet or enclosure
11297-I