| Manufacturer | Allen Bradley |
|---|---|
| Product Type | Output Module |
| Product Line | Flex I/O 1794 |
| Part Number | 1794-OE12 |
| UPC | 612598320196 |
| Weight | 0.25 lbs (0.11 kg) |
| Nominal Power Supply Voltage | 24V DC |
| Nominal Power Supply Voltage Range | 10-31.2V DC |
| FLEXbus Current | 80 mA |
| Continuous Isolation Voltage | 50V with basic insulation |
| Max. Power Dissipation | 7.68 Watts at 24V DC |
| Thermal Dissipation | 26.2 BTU per hour at 24V DC |
| Wire Type | Shielded Type |
| Wiring Category | Category 2 on the signal and power ports |
| Enclosure Type | Open Type |
| Keyswitch Position | Position 4 |
| Number of Outputs | 12 Outputs |
| Non-Isolated Outputs | Yes |
| Data Format | 16-Bit Format |
Overview
The Allen-Bradley 1794-OE12 is a critical component for distributed control systems, belonging to the robust FLEX I/O family by Rockwell Automation. This module acts as the bridge between your digital controller (PLC) and analog field devices. With 12 independent output channels, it offers high channel density, saving valuable panel space while delivering precise control signals. Whether you need to regulate flow, temperature, or pressure, the 1794-OE12 provides the reliability and accuracy required for modern industrial automation.
Key Features & Benefits
- High-Density Output: Features 12 independent analog output channels in a single module footprint, significantly reducing the number of modules required for complex process applications.
- Flexible Signal Configuration: Each channel can be individually configured via side-mounted DIP switches for Current (0-20mA, 4-20mA) or Voltage (0-10V, ±10V) outputs, offering unmatched versatility for mixed-signal applications.
- 12-Bit Resolution: Provides high-precision 12-bit digital-to-analog conversion, ensuring smooth and accurate control of sensitive equipment like proportional valves and servo drives.
- Channel Isolation: The module features channel-to-channel isolation, preventing electrical noise or faults in one channel from affecting adjacent channels, thereby increasing system stability.
- Diagnostic LEDs: Integrated status LEDs for each channel (Output Enable) and module status allow for rapid troubleshooting and verification of output states without external test equipment.
- Rugged Design: Built to withstand harsh industrial environments with a wide operating temperature range and high immunity to electrical noise.
Applications
The Allen-Bradley 1794-OE12 is extensively used in:
- Process Control: Regulating control valves and actuators via 4-20mA signals.
- Motor Control: Sending speed reference signals (0-10V) to Variable Frequency Drives (VFDs).
- Data Recording: Providing analog inputs to chart recorders and data loggers.
- HVAC Systems: Controlling damper positions and heating elements.
- Water Treatment: Monitoring and controlling chemical dosing pumps.
Important Installation Note:
The 1794-OE12 module requires a compatible Terminal Base Unit (such as the 1794-TB3 or 1794-TB3S) for wiring and power connection. The module plugs directly onto the terminal base. Ensure the terminal base is correctly wired for the specific voltage or current mode selected on the module’s DIP switches.
Why Choose This Module?
Our 1794-OE12 units are sourced from authorized distributors, guaranteeing genuine Allen-Bradley / Rockwell Automation quality. As a mature product, it is widely used in existing plants for replacements and upgrades. We provide fast shipping, technical support, and competitive pricing to keep your production lines running smoothly.
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