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Appendices
A - 40
NX-series Digital I/O Unit User’s Manual (W521)
Unit name
Transistor Output Unit
Model
NX-OD5256-5
Number of points
16 points
External connection
terminals
MIL connector (20 terminals)
I/O refreshing method
Switching Synchronous I/O refreshing and Free-Run refreshing
Indicators
TS indicator, output indicator
Internal I/O common
PNP
Rated voltage
24 VDC
Operating load voltage
range
20.4 to 28.8 VDC
Maximum value of load
current
0.5 A/point, 2 A/NX Unit
Maximum inrush cur-
rent
4.0 A/point, 10 ms max.
Leakage current
0.1 mA max.
Residual voltage
1.5 V max.
ON/OFF response time
0.5 ms max./1.0 ms max.
Dimensions
30 (W) x 100 (H) x 71 (D)
Isolation method
Photocoupler isolation
Insulation resistance
20 M
Ω
min. between isolated circuits (at
100 VDC)
Dielectric strength
510 VAC between isolated circuits for 1
minute at a leakage current of 5 mA max.
I/O power supply
method
Supplied from external source.
Current capacity of I/O
power supply terminal
Without I/O power supply terminals
NX Unit power con-
sumption
0.70 W max.
Current consumption
from I/O power supply
40 mA max.
Weight
85 g max.
Circuit layout
Installation orienta-
tion and restrictions
Installation orientation: Possible in 6 orientations.
Restrictions: No restrictions
Terminal connection
diagram
Disconnec-
tion/Short-circuit
detection
Not supported.
Protective function
With load short-circuit protection.
OUT0 to OUT15
0V
COM (+V)
COM (+V)
0V
I/O power
NX bus
connector
(left)
I/O power
supply
−
NX bus
connector
(right)
I/O power
I/O power
supply
−
Connector
Internal circuits
Short-circuit protection
1
5
9
3
7
11
15
17
19
13
COM (+V)
OUT15
OUT13
0V
OUT14
OUT12
OUT10
OUT09
OUT08
OUT11
2
6
10
4
8
12
16
18
20
14
24 VDC
COM (+V)
OUT07
OUT05
0V
OUT06
OUT04
OUT02
OUT01
OUT00
OUT03
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
Connector
pin
Signal
name
Signal
name
• Be sure to wire both pins 1 and 2 (COM (+V)).
• Be sure to wire both pins 3 and 4 (0V).
Содержание NX-IA3117
Страница 34: ...Sections in this Manual 32 NX series Digital I O Unit User s Manual W521...
Страница 52: ...1 Features and System Configuration 1 18 NX series Digital I O Unit User s Manual W521...
Страница 56: ...2 Specifications 2 4 NX series Digital I O Unit User s Manual W521...
Страница 152: ...5 I O Refreshing 5 36 NX series Digital I O Unit User s Manual W521...
Страница 204: ...8 Digital Mixed I O Units 8 8 NX series Digital I O Unit User s Manual W521...
Страница 224: ...9 Troubleshooting 9 20 NX series Digital I O Unit User s Manual W521...
Страница 230: ...10 Inspection and Maintenance 10 6 NX series Digital I O Unit User s Manual W521...
Страница 290: ...Appendices A 60 NX series Digital I O Unit User s Manual W521 Installation Height 100 71 Unit mm...
Страница 337: ...I 1 I NX series Digital I O Unit User s Manual W521 Index...
Страница 340: ...I 4 NX series Digital I O Unit User s Manual W521 Index...