Datasheet

NX series I/O 17
Terminal wiring
Circuit layout
NX-OD6121-5
I/O power supply +
I/O power supply −
I/O power supply +
I/O power supply −
Internal circuits
COM1
COM1
+V0
+V0
OUT0 to
OUT15
Connector
COM0
COM0
+V1
+V1
OUT16 to
OUT31
NX-OD6121-5
1
5
9
3
7
11
15
17
19
13
2
6
10
4
8
12
16
18
20
14
21
25
29
23
27
31
35
37
39
33
22
26
30
24
28
32
36
38
40
34
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
COM1
COM1
+V1
+V1
OUT15
OUT14
OUT13
OUT12
OUT11
OUT10
OUT09
OUT08
OUT07
OUT06
OUT05
OUT04
OUT03
OUT02
OUT01
OUT00
COM0
COM0
+V0
+V0
OUT31
OUT30
OUT29
OUT28
OUT27
OUT26
OUT25
OUT24
OUT23
OUT22
OUT21
OUT20
OUT19
OUT18
OUT17
OUT16
NX-OD6256-5
I/O power supply +
I/O power supply −
I/O power supply +
I/O power supply −
Internal circuits
0V1
0V1
COM0 (+V)
COM0 (+V)
OUT0 to
OUT15
OUT16 to
OUT31
Connector
0V0
0V0
COM1 (+V)
COM1 (+V)
NX-OD6256-5
1
5
9
3
7
11
15
17
19
13
2
6
10
4
8
12
16
18
20
14
21
25
29
23
27
31
35
37
39
33
22
26
30
24
28
32
36
38
40
34
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
COM1 (+V)
COM1 (+V)
0V1
0V1
COM0 (+V)
COM0 (+V)
0V0
0V0
OUT31
OUT30
OUT29
OUT28
OUT27
OUT26
OUT25
OUT24
OUT23
OUT22
OUT21
OUT20
OUT19
OUT18
OUT17
OUT16
OUT15
OUT14
OUT13
OUT12
OUT11
OUT10
OUT09
OUT08
OUT07
OUT06
OUT05
OUT04
OUT03
OUT02
OUT01
OUT00
NX bus
connector
(left)
NX bus
connector
(right)
NX bus
connector
(left)
NX bus
connector
(right)
Signal
name
Connector
pin
Signal
name
Signal
name
Connector
pin
Signal
name
• Be sure to wire both pins 21 and 22 (+V0).
• Be sure to wire both pins 23 and 24 (COM0).
• Be sure to wire both pins 1 and 2 (+V1).
• Be sure to wire both pins 3 and 4 (COM1).
• Be
sure to wire both pins 21 and 22 (COM0 (+V)).
• Be sure to wire both pins 1 and 2 (COM1 (+V)).
• Be sure to wire both pins 23 and 24 (0V0).
• Be sure to wire both pins 3 and 4 (0V1).
Short-circuit
protection
Short-circuit
protection