Rockwell Automation 8520 9/Series CNC Integration Maintenance Manual Documentation Set - Manual (Page 154)

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11277-I
Section 4B
Connecting the 3-axis Servo Module
4B-8
CN2, CN3, and CN4 Servo Drive Signal Connectors
The digital servo module sends servo drive signals and receives current
feedback from the servo amplifier through connectors CN2, CN3, and
CN4. Figure 4C.7 shows an end view of connectors CN2, CN3, and CN4
and lists the pin assignments of the these connectors.
Figure 4B.6
End View of Connectors and Pin Assignments of CN2, CN3, CN4, 20 pin
male, Honda MR-20RMD2
Pin
No.
Signal Description True
Level
Signal Destina-
tion
1 ENABLE Motor Amplifier Enable HIGH Servo Amplifier
2 /ENABLE “ON”State ---- Enable (Active) LOW Servo Amplifier
3 Shield Chassis ground for shielded cable
4 Shield Chassis ground for shielded cable
5 Shield Chassis ground for shielded cable
6 STATUS Amplifier status flag HIGH Servo Module
7 /STATUS “ON”state - normal operation LOW Servo Module
8 PWM_A Current command for Phase_A HIGH Servo Amplifier
9 /PWM_A Diff. signal LOW Servo Amplifier
10 PWM_B Current command for Phase_B HIGH Servo Amplifier
11 /PWM_B Diff. signal LOW Servo Amplifier
12 PWM_C Current command for Phase_C HIGH Servo Amplifier
13 /PWM_C Diff. signal LOW Servo Amplifier
14 Ia Current sensing value for Phase_A HIGH Servo Module
15 /Ia Diff. Signal LOW Servo Module
16 Shield Chassis ground for shielded cable
17 Shield Chassis ground for shielded cable
18 Shield Chassis ground for shielded cable
19 Ib Current sensing value for Phase_B HIGH Servo Module
20 /Ib Diff. Signal LOW Servo Module