Allen-Bradley 1756-OB32 ControlLogix 32-Point 12/24V DC Digital Output Module

Brief Product Description

The Allen-Bradley 1756-OB32 is a 32-point digital output module for the ControlLogix platform. It provides reliable 12 to 24 Volt DC sourcing control for various industrial automation loads.

Product Overview

The 1756-OB32 module functions as a high-density digital output interface within the Rockwell Automation ControlLogix architecture. This module interfaces directly with the system backplane to control various field devices safely. It utilizes advanced Producer/Consumer technology to broadcast status data effectively across the network. Consequently, multiple controllers can monitor the output conditions simultaneously without complex routing.

This unit coordinates seamlessly with central processing units to manage high-speed industrial machinery. It supports hot-swapping, allowing maintenance personnel to replace modules without powering down the system. To simplify field connections, the assembly accepts removable terminal blocks, specifically the 1756-TBCH and 1756-TBS6H configurations.

Key Technical Characteristics

Electrical and Performance Specifications

• Number of Outputs: 32 sourcing points (16 points per group)
• Operating Voltage Range: 10 to 31.2 Volts DC
• Nominal Output Voltage: 12/24 Volts DC
• Current Draw at 5.1 Volts DC: 300 Milliamperes
• Current Draw at 24 Volts DC: 2 Milliamperes
• Maximum Power Dissipation: 4.8 Watts at 60 degrees Celsius
• Surge Current Per Point: 1 Ampere for 10 milliseconds

Environmental and Physical Standards

• Operating Temperature: 0 to 60 degrees Celsius
• Storage Temperature: -40 to 85 degrees Celsius
• Relative Humidity: 5 to 95 percent non-condensing
• Approximate Net Weight: 0.35 kilograms
• Dimensions: 23.3 x 18.2 x 5.3 centimeters
• Enclosure Type Rating: None (open-style construction)

Protection and Diagnostics

• Electronic Protection: Built-in current limiting to safeguard internal circuitry
• Isolation Voltage: 250 Volts continuous between outputs and backplane
• Pilot Duty Rating: Solenoid control capability
• Status Indicators: Display panel showing individual channel conditions

Industrial Applications

Automated facilities implement the 1756-OB32 module to drive high-density discrete components efficiently. It excels in high-speed packaging, automated material handling, and assembly line applications. System integrators regularly deploy this component to actuate DC solenoids, pilot relays, and indicator panel lights. Because the device tolerates extreme industrial environments, it operates reliably near heavy manufacturing processes.