Part of the Omron NX-Series Safety & I/O series — see the full model table, lifecycle status and replacement parts.
Omron NX-DA3603 4-Channel Analog Voltage Output
SKU: NX-DA3603USD 182.00
Omron NX-DA3603 NX I/O unit with four −10 to +10 V analog outputs, 1/8000 resolution, Free-Run processing and a removable 8-terminal push-in connector.
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Product Overview
The Omron NX-DA3603 is a four-channel analog voltage output unit for the NX I/O bus. It provides four −10 to +10 V outputs at 1/8000 resolution, with Free-Run signal processing and 0.5 ms conversion time per unit.
The 12 mm-wide housing uses a removable screwless push-in connector with eight wiring terminals. This is an NX I/O unit rather than a controller option board; output channels are not isolated from one another.
Choose it when four bipolar voltage commands are needed in one unit. NX-DA2603 provides two channels in the same voltage and resolution class. For current-loop loads, compare the dedicated NX current-output models instead of assuming voltage and current outputs are interchangeable.
Key Features
- Four 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-DA3603
- Series: NX I/O — NX-DA analog output units
Best-Fit Applications
- Four bipolar speed or position references from one NX analog output unit.
- Analog command signals for proportional valves, actuators or drives with suitable voltage inputs.
- NX I/O stations where four general-purpose outputs reduce the number of installed units.
Buying Checklist
- Choose NX-DA3603 for four −10 to +10 V outputs at 1/8000 resolution.
- Choose NX-DA2603 when only two voltage outputs are required.
- Verify input impedance, channel commons, terminal wiring and Free-Run response for every connected load.
Technical Specifications
| Manufacturer | Omron Corporation |
|---|---|
| Series | NX I/O — NX-DA analog output units |
| Model / SKU | NX-DA3603 |
| Analog outputs | 4 channels |
| Output range | −10 to +10 V |
| Resolution | 1/8000 (13-bit) |
| Conversion time | 0.5 ms per unit |
| 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-DA3603
What does the Omron NX-DA3603 output?
Four analog voltage signals in the −10 to +10 V range at 1/8000 resolution. It is an NX I/O unit, not a four-channel current-output unit.
Does NX-DA3603 support synchronous I/O refresh?
No. This model uses Free-Run signal processing. Review the NX analog I/O lineup if synchronous updating is a design requirement.
What is the difference between NX-DA3603 and NX-DA2603?
NX-DA3603 has four −10 to +10 V channels; NX-DA2603 has two. Both are in the 1/8000 resolution class and use removable screwless push-in wiring.
Can NX-DA3603 directly provide a 4–20 mA loop?
No. This model provides voltage output. Use a suitable NX current-output unit for a 4–20 mA application and confirm the required loop supply and wiring separately.
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