Part of the Omron NX-Series Safety & I/O series — see the full model table, lifecycle status and replacement parts.
Omron NX-DA2603 2-Channel Analog Voltage Output
SKU: NX-DA2603USD 145.00
Omron NX-DA2603 NX I/O unit with two −10 to +10 V analog outputs, 1/8000 resolution, 0.5 ms conversion per unit and an 8-terminal push-in connector.
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Product Overview
The Omron NX-DA2603 is a two-channel analog voltage output unit for the NX I/O bus. It converts controller values into two −10 to +10 V signals at 1/8000 resolution, with Free-Run signal processing and 0.5 ms conversion time per unit.
The 12 mm-wide unit uses a removable screwless push-in connector with eight wiring terminals. It is an NX I/O unit, not a controller option board, and it does not provide isolation between its two output channels.
Use it where two general-purpose bipolar voltage references are required. For four voltage outputs in the same resolution class, see NX-DA3603. For current-loop applications, select an NX current-output model instead of adding external conversion without reviewing the loop design.
Key Features
- Two analog voltage outputs, each −10 to +10 V
- 1/8000 (13-bit) resolution and 0.5 ms conversion time per unit
- Free-Run signal processing; no synchronous I/O refresh
- Removable 8-terminal screwless push-in connector, 12 mm width and IP20
- SKU: NX-DA2603
- Series: NX I/O — NX-DA analog output units
Best-Fit Applications
- Bipolar speed or position references for drives and actuators with a −10 to +10 V input.
- Two-channel analog command output on an NX I/O station.
- General-purpose machine control where Free-Run output updating meets the required response.
Buying Checklist
- Choose NX-DA2603 for two −10 to +10 V outputs at 1/8000 resolution.
- Choose NX-DA3603 when the same voltage and resolution are required on four channels.
- Confirm the receiving device's input impedance, common-mode wiring and refresh requirements before installation.
Technical Specifications
| Manufacturer | Omron Corporation |
|---|---|
| Series | NX I/O — NX-DA analog output units |
| Model / SKU | NX-DA2603 |
| Analog outputs | 2 channels |
| Output range | −10 to +10 V |
| Resolution | 1/8000 (13-bit) |
| Conversion time | 0.5 ms per unit (250 µs per channel) |
| Signal processing | Free-Run |
| Accuracy | ±0.3% full scale at 25 °C; ±0.5% full scale over 0 to +55 °C |
| Load / output impedance | 5 kΩ minimum load / 0.5 Ω maximum output impedance |
| Isolation | Output-to-NX-bus isolation; no isolation between output channels |
| I/O connection | Removable screwless push-in connector, 8 wiring terminals; NX-TBA082 spare |
| Dimensions / weight | 12 × 104.5 × 80.1 mm / 70 g |
| Protection | IP20 |
Manufacturer documentation
Omron's own product page, where the manufacturer's current specification and lifecycle information are published. We are an independent distributor and cannot mirror those documents; the link goes to Omron's site.
FAQ for NX-DA2603
What does the Omron NX-DA2603 output?
Two analog voltage signals in the −10 to +10 V range at 1/8000 resolution. It is an NX I/O unit, not a controller option board or a current-output module.
Does NX-DA2603 support synchronous I/O refresh?
No. Omron lists Free-Run signal processing for this model. Select a different NX analog output unit if the application requires synchronous refresh.
Which terminal block does NX-DA2603 use?
A removable screwless push-in connector with eight wiring terminals. Omron lists NX-TBA082 as the replacement connector.
What is the difference between NX-DA2603 and NX-DA3603?
Both provide −10 to +10 V outputs at 1/8000 resolution. NX-DA2603 has two channels; NX-DA3603 has four. Confirm conversion, wiring and refresh requirements for the complete NX configuration.
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