National Instruments 7340 PCI Benutzerhandbuch

B-1

Cable Connector Descriptions

This appendix describes the connector pinout for the cables that connect
to the PXI/PCI-7340.

Figures B-1 and B-2 show the pin assignments for the stepper and servo
50-pin motion connectors. These connectors are available when you use
the SH68-C68-S shielded cable assembly and the 68M-50F step/servo
bulkhead cable adapter.

Figure B-1. 50-Pin Stepper Connector Pin Assignment

Digital Ground

Axis 4 Inhibit

Trigger/Breakpoint 4

Axis 4 Home Switch

Digital Ground

Axis 4 Dir (CCW)

Axis 3 Inhibit

Trigger/Breakpoint 3

Axis 3 Home Switch

Digital Ground

Axis 3 Dir (CCW)

Axis 2 Inhibit

Trigger/Breakpoint 2

Axis 2 Home Switch

Digital Ground

Axis 2 Dir (CCW)

Axis 1 Inhibit

Trigger/Breakpoint 1

Axis 1 Home Switch

Digital Ground

Axis 1 Dir (CCW)

Host +5 V

Axis 4 Forward Limit Switch

Axis 4 Encoder Index

Axis 4 Encoder Phase A

Axis 4 Step (CW)

Axis 3 Reverse Limit Switch

Axis 3 Forward Limit Switch

Axis 4 Reverse Limit Switch

Axis 4 Encoder Phase B

Axis 3 Encoder Index

Axis 3 Encoder Phase B

Axis 3 Encoder Phase A

Axis 3 Step (CW)

Axis 2 Reverse Limit Switch

Axis 2 Forward Limit Switch

Axis 2 Encoder Index

Axis 2 Encoder Phase B

Axis 2 Encoder Phase A

Axis 2 Step (CW)

Axis 1 Reverse Limit Switch

Axis 1 Forward Limit Switch

Axis 1 Encoder Index

Axis 1 Encoder Phase B

Axis 1 Encoder Phase A

Axis 1 Step (CW)

49 50

47 48

45 46

43 44

41 42

39 40

37 38

35 36

33 34

31 32

29 30

27 28

25 26

23 24

21 22

19 20

17 18

15 16

13 14

11 12