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Appendices
NX-series Digital I/O Unit User’s Manual (W521)
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1 Dat
a Shee
t
A
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1-4 D
igit
al Mixed I/O Unit
s
Unit name
DC Input/Transistor Output Unit
Model
NX-MD6256-5
Number of points
16 inputs/16 outputs
External connection
terminals
2 MIL connectors (20 terminals)
I/O refreshing method
Switching Synchronous I/O refreshing and Free-Run refreshing
Out-
put
sec-
tion
(CN1)
Internal I/O
common
PNP
Input
sec-
tion
(CN2)
Internal I/O
common
For both NPN/PNP
Rated voltage
24 VDC
Rated input
voltage
24 VDC (15 to 28.8 VDC)
Operating
load voltage
range
20.4 to 28.8 VDC
Input current
7 mA typical (at 24 VDC)
Maximum
value of load
current
0.5 A/point, 2 A/NX Unit
ON volt-
age/ON cur-
rent
15 VDC min./3 mA min. (between COM
and each signal)
Maximum
inrush current
4.0 A/point, 10 ms max.
OFF volt-
age/OFF cur-
rent
5 VDC max./1 mA max. (between COM
and each signal)
Leakage cur-
rent
0.1 mA max.
ON/OFF
response time
20
μ
s max./400
μ
s max.
Residual volt-
age
1.5 V max.
Input filter
time
No filter, 0.25 ms, 0.5 ms, 1 ms (default),
2 ms, 4 ms, 8 ms, 16 ms, 32 ms, 64 ms,
128 ms, 256 ms
ON/OFF
response time
0.5 ms max./1.0 ms max.
Indicators
TS indicator, I/O indicators
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
Supply from external source
Current capacity of I/O
power supply terminal
Without I/O power supply terminals
NX Unit power con-
sumption
0.75 W max.
Current consumption
from I/O power supply
40 mA max.
Weight
110 g max.
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...