Omron NX-ID User Manual page 270

Appendices
Unit name DC Input Unit
Number of points 8 points
I/O refreshing method Switching Synchronous I/O refreshing and Free-Run refreshing
Indicators TS indicator, input indicators
Dimensions 12 (W) x 100 (H) x 71 (D)
Insulation resistance 20 MΩ min. between isolated circuits (at
100 VDC)
I/O power supply Supply from the NX bus
method
NX Unit power con- • Connected to a CPU Unit
sumption
0.90 W max.
• Connected to a Communications Cou-
pler Unit
0.50 W max.
Weight 65 g max.
Circuit layout
NX bus
connector
(left)
Installation orienta- Installation orientation:
tion and restrictions
• Connected to a CPU Unit
Possible in upright installation.
• Connected to a Communications Coupler Unit
Possible in 6 orientations.
Restrictions: No restrictions
Terminal connection
diagram
24 VDC
A - 20
IOV0 to 7
Terminal block
IN0 to IN7
I/O power supply +
I/O power supply −
Additional I/O I/O Power Supply
Power Supply Unit Connection Unit
A1 B1 A1
IOG
IOV IOV
IOG
IOG
IOG IOG
IOG
IOV IOV IOG
IOG
IOG IOG IOG
IOG
A8 B8
A8
Model
External connection
terminals
Internal I/O common
Rated input voltage
Input current
ON voltage/ON current
OFF voltage/OFF cur-
rent
ON/OFF response time
Input filter time
Isolation method
Dielectric strength
Current capacity of I/O
power supply terminal
Current consumption
from I/O power supply
Current control
circuit
DC Input Unit
NX-ID4442
B1 A1 B1
IOG
IN0 IN1
IOG
IOV0 IOV1
IOG
IN2 IN3
IOG
IOV2 IOV3
IN4 IN5
IOG
IOG IOV4 IOV5
IOG IN6 IN7
IOG IOV6 IOV7
A8 B8
B8
NX-series Digital I/O Unit User's Manual (W521)
NX-ID4442
Screwless clamping terminal block (16 ter-
minals)
PNP
24 VDC (15 to 28.8 VDC)
3.5 mA typical (at 24 VDC), rated current
15 VDC min./3 mA min. (between IOG and
each signal)
5 VDC max./1 mA max. (between IOG and
each signal)
20 μs max./400 μs max.
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
Photocoupler isolation
510 VAC between isolated circuits for 1
minute at a leakage current of 5 mA max.
:
IOV 0.1 A/terminal max.
No consumption
I/O power supply +
NX bus
connector
I/O power supply −
(right)
Two-wire
sensor
Three-wire
sensor