Omron CJ1W-DA021 CJ Series Analog Output Unit 2 Channels

Omron CJ1W‑DA021 is an analog output unit for SYSMAC CJ‑series PLC systems. Provides 2 analog output channels, each independently configurable for voltage or current signals. 1/4000 resolution. 18‑point removable screw terminal block. 31 mm width, DIN rail mounting.

Applications:

• Speed reference for servo drives and variable frequency drives

• Positioning of proportional valves in hydraulic and pneumatic systems

• Analog control for SCR power controllers and electric actuators

• Process control requiring 4 … 20 mA current loop output

Core Specifications:

• Outputs: 2 analog outputs

• Output ranges (selectable per channel): 1‑5 V, 0‑5 V, 0‑10 V, –10 to 10 V, 4‑20 mA

• Resolution: 1/4000 (approx. 12‑bit)

• Conversion time per point: ≤ 1 ms

• Accuracy at 25 °C: voltage output ±0.3 % of full scale, current output ±0.5 % of full scale

• Output impedance: ≤ 0.5 Ω (voltage output)

• Max. output current: 2.4 mA per point (voltage output), load resistance ≤ 600 Ω (current output)

• Isolation: Photocoupler isolation between outputs and controller signals (no isolation between outputs)

• External power supply required: 24 V DC (inrush current 20 A max., pulse width 1 ms min.)

• External power supply current: ≤ 140 mA

• Current consumption from backplane: ≤ 120 mA at 5 V DC

• Connection: 18‑point removable screw terminal block (M3 screws)

• Protection rating: IP20

• Dimensions (W × H × D): 31 mm × 90 mm × 65 mm

• Weight: approx. 150 g

• Operating temperature: 0 °C … 55 °C

Advanced Specifications:

• Unit type: CJ‑series Special I/O Unit

• Unit number: 0‑95 (rotary switch setting)

• Word allocation: 2 words (output data)

• Functions: Output hold, scaling to user‑specified engineering units, offset/gain adjustment

• Applicable controllers: CJ1, CJ2, CS1, NJ series CPU units and CP1H systems

• Certifications: UC1, N, L, CE

Standards & Compliance:
Refer to manufacturer official documentation for detailed certification and compliance information.

Related Products:

• CJ1W‑PA205R – Power supply unit for CJ‑series CPU rack

• CJ1W‑ID211 – 16‑point DC input unit, screw terminal

• CJ1W‑OD212 – 16‑point PNP transistor output unit

• CJ1W‑DA041 – 4‑channel analog output unit (higher channel count)