Allen Bradley 1771-OG Output Module

General Description

The Allen Bradley 1771-OG Output Module is part of the 1771 I/O series and is precisely engineered to support TTL (Transistor-Transistor Logic) output operations. This module can control up to 16 outputs, making it a versatile choice for many automation tasks. It operates within a voltage range of 5V DC, ensuring compatibility with numerous devices and systems in industrial settings.

Technical Specifications of 1771-OG Output Module

l Manufacturer: Allen-Bradley

l Product Number: 1771-OG

l Product Type: DC Digital Output Module

l Origin: USA

l Weight: Approximately 700 grams (0.7 kg)

l Electrical Specifications

l Outputs per Module: 8 points

l Module Location: 1771 I/O chassis

l Output Voltage Range:

l HIGH = TRUE: ON: 2.0 to 5.25V dc, OFF: -0.2 to 0.8V dc

l LOW = TRUE: ON: -2.0 to -5.25V dc, OFF: -0.2 to 0.8V dc

l Maximum Output Current:

n Source: 1mA

n Sink: 20mA

l Customer Supply Current per Module: 250mA max

l Output Signal Delay: Less than 1ms

l Power Dissipation: 2.2 Watts (max), 0.8 Watts (min)

l Thermal Dissipation: 7.5 BTU/hr (max), 2.7 BTU/hr (min)

l Backplane Current: 160mA max

l Environmental Conditions

n Operational Temperature: 0° to 60°C (32° to 140°F)

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

Relative Humidity: 5% to 95% without condens

Detailed Features

1. Status Indicators: The module includes multiple indicators to provide real-time feedback on output conditions, helping operators quickly identify issues.

2. Isolation Protection: Each output is isolated to prevent faults from affecting other outputs, enhancing overall system reliability.

3. Configurable Logic Operation: Onboard switches allow Users to select between "High = True" or "Low = True" logic operations.

4. Compact Form Factor: Designed to fit within standard I/O chassis, maximizing space efficiency in control panels.

Applications of 1771-OG Output Module

The 1771-OGD Output Module is suitable for a variety of applications, including:

l Industrial Automation Systems: Controls actuators, relays, and other devices in manufacturing environments.

l Process Control Systems: Integrates with sensors and controllers to automate processes effectively.

l Robotics Control: Provides precise control signals for robotic arms and machinery.

l Data Acquisition Systems: Used with input modules to gather and process data from various sources.

Installation of 1771-OG Output Module

l Mounting the Module:

Ensure the I/O chassis is powered down before installation.

Slide the 1771-OG module into an available slot in the compatible I/O chassis until it clicks into place.

l Wiring Connections:

Connect field devices to the terminal block according to the wiring diagram provided in the installation manual.

Ensure that all connections are secure and that power is off during wiring.

l Power Requirements:

The module requires a separate +5V DC power supply to operate. Ensure this supply meets the required specifications.

l Configuration:

Set the logic operation using the onboard switches based on your application needs (High = True or Low = True).

Verify that all connections are correct before powering up the system.

l Testing:

After installation, power on the system and check the status indicators on the module to ensure proper functionality.

Perform functional tests on connected devices to confirm that outputs are responding as expected.

Related Part Numbers

The following part numbers are related within the same series:

l 1771-OG: A similar TTL output module with fewer outputs (8).

l 1771-OAC: Analog output module for controlling analogue devices.

l 1771-OE8: Digital output module with eight outputs.

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