Rockwell Automation 8520 9/Series CNC Integration Maintenance Manual Documentation Set - Manual (Page 156)

Section 4B
Connecting the 3-axis Servo Module
4B-10
Table 4B.B lists the pin assignments of this connector when it used with
incremental encoders.
Table 4B.B
CN5, CN6, and CN7 Incremental Encoder Pin Assignments
Pin No. Signal Description True Level Signal Destination
1 GND Encoder Power Return Feedback Device
2 GND Encoder Power Return Feedback Device
3 ENC_5V Switched +5V Encoder Power Supply Feedback Device
4 ENC_5V +5V Encoder Power Feedback Device
5 ENC_15V Spindle Encoder +15V Power Supply Feedback Device
6 ENC_15V +15V Encoder Power Feedback Device
7 N.C.
8 PU Pole Sensor output Phase_U, 0 ° High Servo Module
9 /PU Diff. Signal Low Servo Module
10 PV Pole Sensor output Phase_V, 120 ° High Servo Module
11 /PV Diff. Signal Low Servo Module
12 PW Pole Sensor output Phase_W, 240 ° High Servo Module
13 /PW Diff. Signal Low Servo Module
14 PZ Phase_Z, 1 pulse per rev. High Servo Module
15 /PZ Diff. Signal Low Servo Module
16 PA Phase_A, 2-phase pulse High Servo Module
17 /PA Diff. Signal Low Servo Module
18 PB Phase_B, 2-phase pulse High Servo Module
19 /PB Diff. Signal Low Servo Module
20 Shield Chassis Ground Feedback Device
The encoder marker signal is sent to the control on the Phase_Z pins
(#14 and #15).
Important: If a spindle incorporates an encoder to supply position
feedback to the digital servo module, the spindle encoder must be
interfaced with the last open connector of these 3 connectors. Refer to the
AMP reference manual for additional information on digital servo board
configuration.
Pins 8 through 13 of connectors CN5, CN6, and CN7 are used for motor
phasing only. When using connectors CN5, CN6, or CN7 for spindle
feedback, pins 7 through 13 are not connected (N.C.).