Rockwell Automation 8520 9/Series CNC Integration Maintenance Manual Documentation Set - Manual (Page 224)

Section 4C
Connecting the 4-axis Servo Module
4C-26
Wiring Power for your Feedback Device (Analog Systems Only)
The control supports feedback devices with 5V compatible output signals.
The voltage that these feedback devices require may vary. The servo
module is equipped to supply 5V DC or 15V DC power to feedback
devices. These voltages may be accessed directly from the encoder
termination panel. However, for the 1394 this power connection is only
necessary if you are using optional feedback devices. The 1394 drive
supplies feedback power to the 1326 motor resolvers.
Important: Be aware that if the 5V DC encoder power is to be used the
connector P3 on the servo module must be directly connected to the power
supply. Refer to page 4D-4 for details on this power supply connection.
If your feedback device requires an external power supply, you can
incorporate it through the EXT. POWER connector on the termination panel.
Power outputs through the ENC POWER connector terminal labeled
EX PWR OUT. The next figure shows the termination panel connection for
EXT. POWER.
Figure 4C.18
Wiring Optional Customer Supplied Power Supply for Feedback Devices
Te
rm
Pa
ne
l
EXT.
POWER
EXT PWR IN
EXT RET IN
Optional
Customer Supplied
Power Supply
External Power
Ground
Shield
11308-I