Rockwell Automation 8520 9/Series CNC Integration Maintenance Manual Documentation Set - Manual (Page 260)

Section 5A
9/440 Resolver--based CNC/Drive System
5A-14
The encoder ports are intended for systems that use either spindles with
position feedback, to provide positioning feedback if you are using
optional feedback for one of the 1326 servo motors, or to provide feedback
for an analog servo you are controlling from one of the analog output
ports. Up to three encoder ports are available.
Important: If you use encoder 3 (connector J11 accessed through the front
of the system module), resolver 3 (connector J3) is disabled. You can not
use both J3 and J11 at the same time.
A
H
I
B
C
J
AB 845H
Encoder
1
7
8
3
9
5
11
12
D
F 6
2
Encoder 1
J9**
Encoder 2
J10**
Bottom View
Open Cover
Press Cover
Release to Open
Encoder 3*
J11
Feedback Board
Front View
9/440
Resolver--based
System Module
* Encoder 3 (J11) is only available
if the third resolver port (J3) is not
used. J11 is not available on the
single axis 9/440.
** These encoder ports are not
available on the single axis and
three axis 9/440.
See page 7A-60 for
details on making
this cable.
16 AWG for encoder power
pins 6 and 12 (use four 22 gauge)
Important: If you are using the 1--axis 9/440 resolver--based (cat. no.
8520-1Sx) system, no encoder ports are available. If you are using the
3--axis 9/440 resolver--based (cat. no. 8520-3Sx) system, only one encoder
port (J11) is available. Note, if you use J11, you can not use your third
resolver port.
5A.3.2
Encoder Feedback
(Optional Feedback)