Omron NX-ID User Manual page 266

Appendices
Unit name DC Input Unit
Number of points 4 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
0.55 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
Disconnec- Not supported.
tion/Short-circuit
detection
A - 16
IOV0 to 3
IN0 to IN3
Terminal block
IOG0 to 3
I/O power supply +
I/O power supply −
Additional I/O
Power Supply Unit
A1 B1 A1
IOV IOV
IOG IOG
IOV IOV
IOG IOG
A8 B8 A8
Model NX-ID3443
External connection Screwless clamping terminal block (12 ter-
terminals minals)
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- 5 VDC max./1 mA max. (between IOG and
rent each signal)
ON/OFF response time 100 ns max./100 ns max.
Input filter time No filter, 1 μs, 2 μs, 4 μs, 8 μs (default), 16
μs, 32 μs, 64 μs, 128 μs, 256 μs
Isolation method Digital isolator isolation
Dielectric strength 510 VAC between isolated circuits for 1
minute at a leakage current of 5 mA max.
Current capacity of I/O
IOV
power supply terminal
nal max.
Current consumption 30 mA max.
from I/O power supply
Power
supply
Current control
circuit
DC Input Unit
NX-ID3443
Two-wire
sensor
B1
IN0 IN1
IOV0 IOV1
Three-wire
IOG0 IOG1
IN2 IN3
IOV2 IOV3
IOG2 IOG3
B8
Protective function Not supported.
NX-series Digital I/O Unit User's Manual (W521)
: :
0.1 A/terminal max., IOG 0.1 A/termi-
I/O power supply +
NX bus
connector
I/O power supply −
(right)
sensor