OVERVIEW

Official designation: Omron CJ1W-DA021 (CJ1, Analog Output Module)

Role/Application: A special I/O unit for the CJ-series PLC, providing two high-resolution analog output channels for precision control of external devices using configurable voltage and current signals.

KEY SPECS SUMMARY

Power: 140 mA max at 24 V DC (external)

Interfaces / Ports: Removable screw terminals

Indicators: RUN, ERC, ERH, ADJ, MODE LEDs

Operating Temp: 0 to 55 degrees C

Platform / Compatibility: Omron CJ-series, NJ, CP1H, NSJ PLCs

Limit: 1/4,000 resolution, 12-bit

Lifecycle: Active, cULus and CE approved

FREQUENTLY ASKED QUESTIONS

Technical Specifications:

Q: What are the configurable analog output ranges supported by the CJ1W-DA021 unit?

A: Supported ranges are -10 to 10 V, 0 to 10 V, 0 to 5 V, 1 to 5 V, and 4 to 20 mA.

Wiring & Installation:

Q: What is the recommended tightening torque for the removable screw terminals on the unit?

A: The terminals require a tightening torque of 7 Lb In, which is 0.8 N m.

Troubleshooting & Compatibility:

Q: What is the primary method for confirming the operational status of the analog output unit?

A: Check the status of the RUN, ERC (Error), and ERH (Error Hold) indicator LEDs on the front panel.

Replacement & Upgrades:

Q: What are the main differences between the CJ1W-DA021 and the CJ1W-DA041 analog output units?

A: The CJ1W-DA041 offers four output channels while the CJ1W-DA021 provides two output channels.