Description
Designed for high-speed, high-accuracy analog control, the NX-DA2203 current output module integrates seamlessly into the Omron NX Series I/O system. This module provides precise control of actuators, variable speed drives, control valves, and other current-driven field devices. Utilizing synchronous I/O refreshing when paired with an EtherCAT Coupler Unit, the NX-DA2203 ensures deterministic response times critical for motion control and precise process automation architectures.
Features
- Fast conversion rate of 250 microseconds per point for responsive control loops.
- Two isolated current output channels supporting standard 4 to 20 mA analog signals.
- High resolution of up to 1/30000 for highly precise output adjustments.
- Power supplied directly from the NX bus, eliminating the need for dedicated external I/O power wiring.
- Screwless push-in terminal block design reduces installation time and improves vibration resistance.
- Ultra-slim 12 mm wide housing maximizes control panel spatial efficiency.
Applications
- Process loop control in chemical processing and water treatment facilities.
- Proportional valve control in hydraulic and pneumatic systems.
- Speed reference control for variable frequency drives (VFDs) in conveyor and material handling systems.
- HVAC fan and damper positioning systems.
Technical Specifications
Manufacturer
| Omron |
Part Number
| NX-DA2203 |
Series
| NX Series |
Module Type
| Analog Output (Current Output Type) |
Number of Outputs
| 2 points |
Output Range
| 4 to 20 mA |
Resolution
| 1/30000 |
Conversion Time
| 250 microseconds per point |
Allowable Load Resistance
| 600 ohms max. |
I/O Power Supply Method
| Supply from the NX bus |
Isolation Method
| Photocoupler isolation between NX bus and output channels |
Insulation Resistance
| 20 Mohms min. at 100 VDC between isolated circuits |
Connection Type
| Screwless push-in terminal block |
Operating Temperature Range
| 0 to 55 degC (ambient operating) |
Installation Guidelines
- Mount the unit securely onto a standard 35 mm DIN rail. Ensure the lock slider clicks into place to prevent movement.
- Confirm that the system power supply is completely switched off before mounting or removing the module.
- For wiring, use recommended solid wire or ferruled stranded wire. Insert directly into the push-in terminal holes without using tools.
- Maintain adequate clearance around the module for natural convection cooling to prevent heat buildup within the enclosure.
- Ensure proper functional grounding of the DIN rail to mitigate electromagnetic interference (EMI) on the analog signals.