The Omron NX-DA3203, also cataloged as the NX-DA32 Analog Output Unit, operates as a dedicated hardware component for multi-channel current signal generation within Sysmac NX-series I/O bus architectures.

Model Identification & Circuit Configuration

• NX: Specifies integration within the Omron NX I/O system backplane architecture.
• DA: Identifies the analog output functional classification.
• 3203: Indicates a 4-channel analog output configuration operating across a 4 to 20 mA current loop range with 1/8000 resolution.

Operational Performance Specifications

Bus Communication & High-Density Scalability

The analog output module executes real-time conversion cycles across all four channels, updating digital values into proportional 4 to 20 mA current outputs. Operating on high-speed backplane bus communication velocity protocols, the hardware supports high I/O density scaling alongside Sysmac CPU units or EtherCAT Couplers. Internal firmware flash compatibility ensures synchronized register processing and output stability across multi-axis or multi-loop industrial control layouts.

Shipping Package Contents

• 1 x Omron NX-DA3203 Analog Output Module
• 1 x 16-Pin Push-In Terminal Block
• 1 x Installation Sheet

Cabinet Installation & Field Wiring Rules

Rail Mounting Procedure

• Align the module side grooves with adjacent NX-series units on a standard 35 mm DIN rail.
• Press the unit backward until the bus connector latch snaps securely onto the backplane rail assembly.

Current Loop Wiring Standards

• Strip solid or ferruled conductor wires to 10 mm and insert them directly into the push-in screwless terminal block.
• Keep 4 to 20 mA analog output wiring routed away from AC power lines and high-voltage motor conductors.

Cable Shielding & Grounding

• Use shielded twisted-pair cables for all current output signals.
• Connect cable shielding to the functional earth terminal of the NX-series rack to block high-frequency noise.

Frequently Asked Questions

• What current output range is provided across the output channels?

  The module provides four independent current output channels operating over a standard 4 to 20 mA current loop range.

• What digital resolution corresponds to the 4 to 20 mA output span?

  The module converts digital register values from 0 to 8000 (0 to 100%) with a digital resolution rating of 1/8000.

• What is the analog signal conversion speed per channel?

  Internal digital-to-analog conversion completes at a rated conversion speed of 250 us per output point.

• What overall signal conversion accuracy is maintained at ambient room temperature?

  The overall output accuracy is +/-0.3% of full scale at an operating ambient temperature of 25 deg C.

• Which I/O refreshing method is utilized by the NX-DA3203 module?

  The unit operates using Free-Run refreshing logic independently of the controller task cycle time.

• What terminal connection style is integrated into the front interface?

  Field wiring connects through a removable 16-terminal push-in screwless clamping terminal block.

• What physical mass does the standalone module possess?

  The standalone physical mass of the NX-DA3203 analog output module is 70 g max.

• How are field current loops shielded against electromagnetic interference?

  Signal lines require shielded twisted-pair cables grounded directly to the NX rack functional earth connection.