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Appendices
A - 14
NX-series Digital I/O Unit User’s Manual (W521)
Unit name
DC Input Unit
Model
NX-ID4442
Number of points
8 points
External connection
terminals
Screwless clamping terminal block (16 ter-
minals)
I/O refreshing method
Switching Synchronous I/O refreshing and Free-Run refreshing
Indicators
TS indicator, input indicators
Internal I/O common
PNP
Rated input voltage
24 VDC (15 to 28.8 VDC)
Input current
3.5 mA typical (at 24 VDC), rated current
ON voltage/ON current
15 VDC min./3 mA min. (between IOG and
each signal)
OFF voltage/OFF cur-
rent
5 VDC max./1 mA max. (between IOG and
each signal)
ON/OFF response time
20
μ
s max./400
μ
s 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
Dimensions
12 (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 the NX bus
Current capacity of I/O
power supply terminal
IOV
:
0.1 A/terminal max.
NX Unit power con-
sumption
0.50 W max.
Current consumption
from I/O power supply
No consumption
Weight
65 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
Not supported.
IN0 to IN7
IOV0 to 7
Terminal block
Internal circuits
Current control
circuit
NX bus
connector
(left)
I/O power
I/O power supply
−
I/O power
I/O power supply
−
NX bus
connector
(right)
Two-wire
sensor
Three-wire
sensor
24 VDC
DC Input Unit
NX-ID4442
Additional I/O
Power Supply Unit
I/O Power Supply
Connection Unit
IOG
IOG
IOG
IOG
IOG
IOG
IOG
IOG
IOG
IOG
IOG
IOG
IOG
IOG
IOG
IOG
IN0
IN2
IN4
IOV0
A1
B1
A8
B8
IOV2
IOV4
IN1
IN3
IN5
IOV1
IOV3
IOV6
IN6
IOV7
IN7
IOV5
IOV
IOG
IOV
IOG
IOV
IOG
IOV
IOG
A1
B1
A8
B8
A1
B1
A8
B8
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...