Part of the Omron NX-Series Safety & I/O series — see the full model table, lifecycle status and replacement parts.
Omron NX-DA2603 — NX 2-Ch Voltage Output, -10 to +10 V
SKU: NX-DA2603USD 145.00
Omron NX-DA2603 NX-series 2-channel analog output, -10 to +10 V, 1/8000 resolution, 250 us/point, 12 mm wide. In stock, China shipping.
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Product Overview
The Omron NX-DA2603 is a 2-channel analog voltage output unit for the NX-series I/O platform, manufactured by Omron Corporation. Hengyixin Automation stocks this controller option board in Xiamen and ships within 3-5 business days to most Asian, European, and North American ports. Specifications on this page were checked against Omron's NX-series I/O System brochure (R183).
The unit outputs -10 to +10 V on two channels at 1/8000 (13-bit) resolution and 250 us per point conversion. Overall accuracy is plus or minus 0.3 percent FS at 25 C and plus or minus 0.5 percent over 0 to 55 C. Output impedance is 0.5 ohm max; allowable load resistance is 5 k ohm min. I/O refresh is Free-Run only.
The 12 mm housing mounts on the NX backplane and snaps onto a screwless push-in 8-terminal block. Power consumption is 1.10 W max from the NX bus. The housing is IP20, 70 g, 100 x 71 x 12 mm, 0 to +55 C operating. The NX-DA3603 sibling is the 4-channel voltage output at 1/8000; the NX-DA2205 is the 2-channel current output at 4-20 mA.
Key Features
- NX-series 2-channel analog voltage output unit, -10 to +10 V per channel, 1/8000 (13-bit) resolution, 250 us per point conversion
- Overall accuracy plus or minus 0.3 percent full scale at 25 C, plus or minus 0.5 percent over 0 to +55 C, 0.5 ohm max output impedance
- Free-Run I/O refresh only (no synchronous I/O refresh), screwless push-in 12-terminal connector on 12 mm wide NX housing
- 1.10 W max power consumption from the NX bus, IP20, 70 g, 12 x 100 x 71 mm, 0 to +55 C operating, removable terminal block
- SKU: NX-DA2603
- Series: Omron NX-series I/O platform (NX-DA analog output family)
Best-Fit Applications
- Speed-reference output on a conveyor where the -10 to +10 V signal drives an analogue-input variable-frequency drive via the EtherCAT coupler
- Proportional-valve position command on a hydraulic press where the NX-DA2603 outputs a -10 to +10 V reference at 1/8000 over Free-Run refresh
- Bias and span output on a multi-zone oven where two channels drive a damper-position actuator and a trim-heater SSR reference simultaneously
Buying Checklist
- Pick the NX-DA2603 for a 2-channel NX-series voltage output unit at -10 to +10 V with 1/8000 resolution on a 12 mm wide housing.
- Pick the NX-DA2605 instead when the application needs the same 2-channel -10 to +10 V output but with 1/30000 resolution and synchronous I/O refresh.
- Pick the NX-DA2203 instead when the load expects a 4-20 mA current loop rather than a voltage signal on the same 12 mm NX body.
Technical Specifications
| Manufacturer | Omron Corporation (Japan) |
|---|---|
| Series | Omron NX-series I/O platform (NX-DA analog output family) |
| Model / SKU | NX-DA2603 |
| Number of Channels | 2 voltage outputs |
| Output Range | -10 to +10 V (output conversion range -5 to +105 percent of full scale) |
| Resolution / Conversion | 1/8000 (13-bit), 250 us per point conversion time, Free-Run refresh only |
| Accuracy | Plus or minus 0.3 percent full scale at 25 C; plus or minus 0.5 percent full scale at 0 to +55 C |
| Load / Output Impedance | Allowable load resistance 5 k ohm min, output impedance 0.5 ohm max |
| Isolation | Between output and NX bus: power = transformer, signal = digital isolator (no isolation between output channels) |
| I/O Connection | Screwless push-in terminal block, 12 terminals, removable for maintenance (NX-TBA122) |
| I/O Power | Supplied from the NX bus; no I/O power supply terminals on this output unit |
| Power / Dimensions | 1.10 W max from NX bus, 12 (W) x 100 (H) x 71 (D) mm, 70 g, IP20, 0 to +55 C operating, cULus / CE / KC listed |
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 is the Omron NX-DA2603 used for?
It is the NX-series 2-channel analog voltage output unit that converts digital values from the NX CPU into -10 to +10 V signals at 1/8000 (13-bit) resolution. It mounts on the NX backplane and drives analogue-input variable-frequency drives, proportional valves, damper actuators, and similar analogue loads.
NX-DA2603 vs NX-DA2605 - what is the difference?
Both are 2-channel -10 to +10 V voltage output units on the same 12 mm wide NX housing. The DA2603 has 1/8000 (13-bit) resolution at 250 us per point in Free-Run refresh only. The DA2605 has 1/30000 resolution at 10 us per point with selectable Free-Run or synchronous I/O refresh. Pick the DA2603 for general-purpose drive speed reference; pick the DA2605 for high-precision closed-loop servo control.
Does the NX-DA2603 support synchronous I/O refresh?
No. The NX-DA2603 only supports Free-Run refreshing - the analogue output updates asynchronously from the EtherCAT cycle. For synchronous I/O refreshing with the EtherCAT cycle, pick the NX-DA2605 or NX-DA3605.
How many NX-DA2603 units can fit on one NX backplane?
Up to 16 NX-DA2603 units (32 analog output channels) on a single NX-EIC202 EtherNet/IP coupler, or up to 63 units (126 channels) on an NX-ECC203 EtherCAT coupler, subject to the coupler's power budget. Each unit draws 1.10 W max from the NX bus and counts against the coupler's 10 W or 15 W budget.
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