Omron NX-AD series User Manual

A - 27
Appendices
NX-series Analog I/O Units User’s Manual for Analog Input Units and Analog Output Units (W522)
A-1 Data Sheet
A
A-1-3 Analog Output Units
Unit name Analog Output Unit (current output type) Model NX-DA2205
Number of points 2 points External connection
terminals
Screwless clamping terminal block (8 ter-
minals)
I/O refreshing method Switching synchronous I/O refreshing and Free-Run refreshing
Indicators TS indicator Output range 4 to 20 mA
Output conversion
range
-5 to 105% (full scale)
Allowable load resis-
tance
600 Ω max.
Resolution 1/30000 (full scale)
Overall
accuracy
25 ° C ±0.1% (full scale)
0 to 55 ° C
±0.3% (full scale)
Conversion time 10 μs/point
Dimensions 12 (W) x 100 (H) x 71 (D) Isolation method Between the input and the NX bus: Power
= Transformer, Signal = Digital isolator (no
isolation between inputs)
Insulation resistance 20 MΩ 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., IOG: 0.1 A/termi-
nal max.
NX Unit power con-
sumption
• Connected to a CPU Unit
2.10 W max.
• Connected to a Communications Cou-
pler Unit
1.75 W max.
Current consumption
from I/O power supply
No consumption
Weight 70 g max.
Circuit layout
Installation orienta-
tion and restrictions
Installation orientation:
• Connected to a CPU Unit
Possible in upright installation.
• Connected to a Communications Coupler Unit
Possible in 6 orientations.
Restrictions:
For upright installation: No restrictions
For any installation other than upright: Restricted as shown in the graph below.
IOV
AG
IOG
AMP
Output I1+ to I2+
Terminal block
AG: Analog circuit
internal GND
NX bus
connector
(left)
I/O power supply +
I/O power supply −
I/O power supply +
I/O power supply −
NX bus
connector
(right)
Ambient operating temperature
Use it within this range.
Load resistance (per point)
40 55
0
350
600
(
°C
)
(Ω)

Omron NX-AD series Specifications

General

Brand	Omron
Model	NX-AD series
Category	I/O Systems
Language	English