Chapter 4
Signal Connections
4-2
ni.com
•
General-purpose outputs
–
Inhibit-out (drive enable) outputs
–
Alarm clear outputs
You can configure the general-purpose inputs and outputs in software for
optional functionality such as drive ready inputs and alarm clear outputs.
Figure 4-1 shows the pin assignments for the 100-pin motion I/O connector
on the PCI-7390.
Figure 4-1.
100-Pin I/O Connector Pin Assignments
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
100
99
98
97
96
95
94
93
92
91
90
89
88
87
86
85
84
83
82
81
80
79
78
77
76
75
74
73
72
71
70
69
68
67
66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
51
Is5V OUT
Isolated Ground
Axis 2 General-Purpose Output 0
Axis 3 General-Purpose Output 0
Axis 4 General-Purpose Output 0
Axis 3 General-Purpose Output 1/Axis 3 Inhibit-Out*
Axis 3 Encoder Phase A +
Axis 3 Encoder Phase A –
Axis 3 Encoder Phase B +
Axis 3 Encoder Phase B –
Axis 3 Index (Encoder Phase Z) +
Axis 3 Index (Encoder Phase Z) –
Isolated Ground
Axis 3 Step (CW) +
Axis 3 Step (CW) –
Axis 3 Dir (CCW) +
Axis 3 Dir (CCW) –
Axis 3 Breakpoint (Position Compare)
Axis 3 VI_COM
Axis 3 Trigger (Position Capture)
Axis 3 Forward Limit Switch
Axis 3 Reverse Limit Switch
Axis 3 Home Switch
Axis 3 Inhibit-In (Alarm)
Axis 3 In-Position
Axis 3 General-Purpose Input 0
Axis 3 General-Purpose Input 1*/Axis 4 Drive (Servo) Ready
Isolated Ground
Axis 4 General-Purpose Output 1/Axis 4 Inhibit-Out*
Axis 4 Encoder Phase A +
Axis 4 Encoder Phase A –
Axis 4 Encoder Phase B +
Axis 4 Encoder Phase B –
Axis 4 Index (Encoder Phase Z) +
Axis 4 Index (Encoder Phase Z) –
Isolated Ground
Axis 4 Step (CW) +
Axis 4 Step (CW) –
Axis 4 Dir (CCW) +
Axis 4 Dir (CCW) –
Axis 4 Breakpoint (Position Compare)
Axis 4 VI_COM
Axis 4 Trigger (Position Capture)
Axis 4 Forward Limit Switch
Axis 4 Reverse Limit Switch
Axis 4 Home Switch
Axis 4 Inhibit-In (Alarm)
Axis 4 In-Position
Axis 4 General-Purpose Input 0
Axis 4 General-Purpose Input 1*/Axis 4 Drive (Servo) Ready
Is5V OUT
Isolated Ground
+24V IN
General-Purpose Output Supply
Axis 1 General-Purpose Output 0
Axis 1 General-Purpose Output 1/Axis 1 Inhibit-Out*
Axis 1 Encoder Phase A +
Axis 1 Encoder Phase A –
Axis 1 Encoder Phase B +
Axis 1 Encoder Phase B –
Axis 1 Index (Encoder Phase Z) +
Axis 1 Index (Encoder Phase Z) –
Isolated Ground
Axis 1 Step (CW) +
Axis 1 Step (CW) –
Axis 1 Dir (CCW) +
Axis 1 Dir (CCW) –
Axis 1 Breakpoint (Position Compare)
Axis 1 VI_COM
Axis 1 Trigger (Position Capture)
Axis 1 Forward Limit Switch
Axis 1 Reverse Limit Switch
Axis 1 Home Switch
Axis 1 Inhibit-In (Alarm)
Axis 1 In-Position
Axis 1 General-Purpose Input 0
Axis 1 General-Purpose Input 1*/Axis 4 Drive (Servo) Ready
Isolated Ground
Axis 2 General-Purpose Output 1/Axis 2 Inhibit-Out*
Axis 2 Encoder Phase A +
Axis 2 Encoder Phase A –
Axis 2 Encoder Phase B +
Axis 2 Encoder Phase B –
Axis 2 Index (Encoder Phase Z) +
Axis 2 Index (Encoder Phase Z) –
Isolated Ground
Axis 2 Step (CW) +
Axis 2 Step (CW) –
Axis 2 Dir (CCW) +
Axis 2 Dir (CCW) –
Axis 2 Breakpoint (Position Compare)
Axis 2 VI_COM
Axis 2 Trigger (Position Capture)
Axis 2 Forward Limit Switch
Axis 2 Reverse Limit Switch
Axis 2 Home Switch
Axis 2 Inhibit-In (Alarm)
Axis 2 In-Position
Axis 2 General-Purpose Input 0
Axis 2 General-Purpose Input1*/Axis 4 Drive (Servo) Ready