Omron NX-ID3343 User Manual page 262

Appendices
Unit name Transistor Output Unit
Number of points 4 points
I/O refreshing method Switching Synchronous I/O refreshing and Free-Run refreshing
Indicators TS indicator, output indicator
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- 0.50 W max.
sumption
Weight 70 g max.
Circuit layout
NX bus
connector
(left)
Installation orienta- Installation orientation: Possible in 6 orientations.
tion and restrictions
Restrictions: No restrictions
Terminal connection
diagram
24 VDC
A - 32
I/O power supply +
I/O power supply −
This unit uses a push-pull output circuit.
Additional I/O Transistor Output
Power Supply Unit
A1 B1 A1
IOV IOV OUT0
IOG IOG IOG0
OUT2
IOV IOV
IOG2
IOG IOG
A8 B8 A8
Model NX-OD3257
External connection Screwless clamping terminal block (12 ter-
terminals minals)
Internal I/O common PNP
Rated voltage 24 VDC
Operating load voltage 15 to 28.8 VDC
range
Maximum value of load 0.5 A/point, 2 A/NX Unit
current
Maximum inrush cur- 4.0 A/point, 10 ms max.
rent
Leakage current 0.1 mA max.
Residual voltage 1.5 V max.
ON/OFF response time 300 ns max./300 ns max.
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 40 mA max.
from I/O power supply
Unit
NX-OD3257
Two-wire type
B1
OUT1
IOV0 IOV1
Three-wire type
IOG1
OUT3
IOV2 IOV3
IOG3
B8
NX-series Digital I/O Unit User's Manual (W521)
: :
0.5 A/terminal max., IOG 0.5 A/termi-
IOV0 to 3
Terminal block
OUT0 to OUT3
IOG0 to 3
I/O power supply +
NX bus
connector
I/O power supply −
(right)