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Appendix B
Position Command Connections
DSUB Connector
NI 951x User Manual
Figure B-1 shows a simplified connection diagram.
Step/CW/Pulse±
Direction/CCW/Sign±
Servo On/Drive Enable
Alarm Clear
(Digital Input)
Drive Ready/
Servo Ready
In-Position
Drive Fault/
Servo Alarm
NI Connection
Accessory/
Custom Cable
Step/CW/Pulse±
Direction/CCW/Sign±
Servo On/Drive Enable
Alarm Clear
Drive Ready/Servo Ready
In-Position
Drive Fault/Servo Alarm
Servo Motor
Figure B-1. NI 9512 to Position Command Drive Connection Diagram
MDR Connector
Encoder Phase A, B, Index
(optional)
+5 V OUT
Forward, Reverse Limit, Home
V sup
Encoder Out
Encoder In
Encoder
B-2
NI 9512
Limit and Home Sensors
Power Supply
Position Command Drive
Motor
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