Allen-Bradley 1771-OGD/B 5–125V DC PLC Output Module

Overview

The Allen-Bradley 1771-OGD/B is a high-performance DC output module engineered for the PLC-5 I/O platform. It provides reliable control of digital outputs across a voltage range of 5 to 125V DC. This module incorporates electrical-optical isolation and integrated filter circuits to ensure accurate signal transmission and protection against noise interference in industrial environments.

Technical Specifications

• Manufacturer: Allen-Bradley

• Model Number: 1771-OGD/B

• Product Type: DC Output Module

• Compatible System: PLC-5 I/O chassis

• Output Voltage Range: 5 to 125V DC

• Output Configuration: Digital transistor outputs

• Isolation Method: Optical and electrical isolation between field and logic circuits

• Status Indicators: LED indicators for module and individual channel status

• Filter Circuits: Integrated to suppress transient noise and signal distortion

• Mounting Type: PLC-5 chassis slot

• Cooling Method: Natural convection

• Operating Temperature: 0°C to 60°C (32°F to 140°F)

• Storage Temperature: -40°C to 85°C (-40°F to 185°F)

• Approximate Weight: 0.45 kg (1.0 lb)

Key Features

• Electrical-Optical Isolation: Ensures safe separation between control logic and output circuitry.

• Wide Operating Voltage: Compatible with systems operating from 5 to 125V DC.

• Status Monitoring: Integrated LEDs enable quick identification of active or faulted outputs.

• Noise Suppression: Built-in filters prevent false triggering due to transient noise.

• Industrial Durability: Designed for robust operation in control panels and distributed automation systems.

Application Scenarios

The 1771-OGD/B DC output module is commonly deployed in:

• PLC-based machine control systems

• Factory automation and material handling equipment

• Power generation and process control environments

• Industrial networks using PLC-5 distributed I/O configurations

FAQ

Q1: Is the 1771-OGD/B compatible with other PLC-5 I/O racks?
A1: Yes, it is compatible with all standard Allen-Bradley PLC-5 chassis and backplanes.

Q2: What protection features are included in this module?
A2: It includes optical isolation and noise-filtering circuits for enhanced system reliability.

Q3: What voltage range does this module support?
A3: It supports DC output operation from 5V to 125V, suitable for varied load applications.