Allen-Bradley 1771-OFE2 Analog Output Module

The Allen-Bradley 1771-OFE2 is a high-performance analog output module designed for precise current signal control in industrial automation systems. As part of the 1771 I/O series, it seamlessly integrates with 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: 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 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

Installation and Compatibility

The 1771-OFE2 is designed for seamless integration into any 1771 I/O chassis, occupying a single slot. It utilizes the 1771-WC field wiring arm, facilitating straightforward installation and maintenance. Proper keying is achieved by setting between pins 10 and 12, and 26 and 28, ensuring correct module placement.

Compatible Allen-Bradley Components

• Allen-Bradley PLC-5 Processors (1785 Series)
• Allen-Bradley 1771 Series I/O Chassis
• Allen-Bradley 1771 Series Power Supplies
• Allen-Bradley PanelView HMIs for system control and monitoring

The Allen-Bradley 1771-OFE2 Analog Output Module stands as a reliable and efficient solution for precise analog control in industrial automation systems.