Product Summary
The 1794-OE12 module delivers twelve high-density analog output channels. It provides precise control for actuators and drives in your system. This module supports voltage and current signals for flexible configuration. Engineers use it to bridge digital controllers with analog field devices reliably.
Expert Technical Evaluation & Performance Review
Unmatched Precision and Stability
The 1794-OE12 module achieves an absolute accuracy of 0.1% full scale. This specification applies to both voltage and current outputs at 25°C. You can rely on this module for demanding process control applications. Its accuracy drift remains low at 0.004% full scale per degree Celsius. This ensures stable performance across varying thermal conditions in your cabinet.
Robust Environmental and Electrical Design
This module operates reliably in temperatures from -20 to 60 degrees Celsius. It also withstands storage temperatures between -40 and 85 degrees Celsius. The component handles non-condensing relative humidity levels from 5 to 95 percent. It survives operating shocks of 30 g and vibrations of 5 g. These ratings make the module suitable for harsh industrial environments.
Detailed Signal Output Capabilities
The 1794-OE12 offers user-configurable output signals for ultimate flexibility. You can select current ranges of 4-20 mA or 0-20 mA. It also provides a voltage output range of +/-10 VDC. The module uses a 16-bit digital-to-analog converter for high resolution. This converter delivers a voltage resolution of 320 microvolts per count. Its current resolution is an impressive 0.641 microamps per count.
Power Supply and Isolation Specifications
The module requires a nominal external DC power supply of 24V DC. Its acceptable input voltage range spans from 10.0 to 31.2V DC. This range includes a 5% AC ripple allowance for power quality variations. The module draws 80 mA from the FlexBus for internal logic. It provides a continuous isolation voltage of 50V between user power and the system. This isolation voltage undergoes testing at 850V DC for 60 seconds.
Thermal Management and Load Handling
Maximum power dissipation reaches 4.3W at the nominal 24V DC supply level. The module's maximum thermal dissipation is 4.7 BTU per hour at 24V DC. These values help you plan your enclosure's cooling requirements effectively. For current outputs, the module drives a resistive load of 0 to 750 ohms. The voltage output terminals can source a maximum current load of 3 mA.
Installation and Configuration Guide
Mount this module on a standard DIN rail for secure installation. You must use a compatible terminal base like the 1794-TB3G or 1794-TB3GS. The module outputs 0 mA until you complete its full configuration. This prevents unexpected actuator movement during system startup or commissioning. A single green or red LED provides power and status indication for quick diagnostics.
Logistics & Standard Packaging Details
- One (1) Allen-Bradley 1794-OE12 Flex IO Analog Output Module
- Product is shipped in anti-static protective packaging
- Module is an open-type enclosure for cabinet installation
- Express delivery shipping is available via FedEx, UPS, and DHL
