Omron NX-ID3343 User Manual page 259

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- 0.55 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
Disconnec- Not supported.
tion/Short-circuit
detection
NX-series Digital I/O Unit User's Manual (W521)
I/O power supply +
I/O power supply −
Additional I/O Transistor Output
Power Supply Unit
A1 B1 A1
IOV IOV OUT0
IOV0
IOG IOG IOG0
OUT2
IOV IOV IOV2
IOG2
IOG IOG
A8 B8 A8
Model NX-OD3121
External connection Screwless clamping terminal block (12 ter-
terminals minals)
Internal I/O common NPN
Rated voltage 12 to 24 VDC
Operating load voltage 10.2 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 0.1 ms max./0.8 ms max.
Isolation method Photocoupler 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: 0.5 A/terminal max., IOG: 0.5 A/termi-
power supply terminal nal max.
Current consumption 10 mA max.
from I/O power supply
Unit
NX-OD3121
Two-wire type
B1
OUT1
IOV1
IOG1 Three-wire type
OUT3
IOV3
IOG3
B8
Protective function Not supported.
Appendices
IOV0 to 3
OUT0 to OUT3
Terminal block
IOG0 to 3
I/O power supply +
NX bus
connector
I/O power supply −
(right)
A - 29
A