Allen-Bradley 1771-OFE2 B Analog Output Module The Allen-Bradley 1771-OFE2 B is a high-performance analog output module designed to provide 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, offering 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.