Allen-Bradley 1771-OFE2 B Analog Output Module
The Allen-Bradley 1771-OFE2 B is a high-performance analog output module designed to deliver precise current signals for industrial automation applications. As part of the 1771 I/O series, this module integrates seamlessly into Allen-Bradley PLC-5 systems, providing reliable and accurate control over various processes.
Key Features
- Four Individually Isolated Channels: Each of the four output channels operates independently, ensuring signal integrity and minimizing interference.
- 4-20 mA Output Range: The module delivers a standard 4-20 mA current output, suitable for controlling a wide array of industrial devices.
- 12-Bit Resolution: High-resolution digital-to-analog conversion allows for precise control over output signals.
- Single-Slot Design: Occupies a single slot in the 1771 I/O chassis, optimizing space within the control system.
- Compatibility: Fully compatible with Allen-Bradley PLC-5 processors and 1771 series I/O chassis.
Technical Specifications
- Output Channels: 4 individually isolated channels
- Output Signal Range: 4-20 mA
- Digital Resolution: 12-bit binary
- Backplane Current Draw: 1.5 A at 5V DC
- Power Dissipation: 7.9 Watts
- Thermal Dissipation: 26.9 BTU/hr
- Isolation Voltage: 850 VDC for 1 second per channel
- Operating Temperature Range: 0°C to 60°C (32°F to 140°F)
- Certifications: UL, CE, CSA approved for industrial use
Applications
The 1771-OFE2 B module is ideal for various industrial applications, including:
- Process control systems requiring precise current loop outputs
- Motor speed regulation and actuator positioning
- Integration with Variable Frequency Drives (VFDs), dampers, louvers, and valves
- Data transmission to measuring and recording instruments such as panel meters and data loggers
Installation and Wiring
For optimal performance and safety, adhere to the following installation guidelines:
- Install the module in any slot of the 1771 I/O chassis, ensuring proper keying at positions 10 and 12 / 26 and 28.
- Use 12-gauge stranded or solid wire with an insulation thickness of 3/64 inch (1.2 mm) for wiring output devices.
- Recommended cable type is Belden 8761.
- Secure wire terminations with a torque of 7-9 lbs/in.
The Allen-Bradley 1771-OFE2 B Analog Output Module offers robust and precise control capabilities, making it a valuable component in complex industrial automation systems.
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