Meeting the Demands of Modern Industrial Control
In today's fast-paced manufacturing environments, reliable digital output control is critical for maintaining productivity and safety. Engineers often face challenges with module failures that cause unexpected downtime and costly repairs. The Allen-Bradley 1746-OB16E addresses these pain points with robust design and proven performance.
Introducing the 1746-OB16E Digital DC Output Module
When a control system requires dependable switching of DC loads, the Allen-Bradley 1746-OB16E offers a practical solution. This SLC 500 digital DC output module provides 16 outputs with a voltage range of 10-30 Volts DC source. It is designed for high-current applications, delivering up to 1 or 0.5 amps per output and 8 amps per module.
Part of the trusted SLC 500 family from Rockwell Automation, the 1746-OB16E integrates seamlessly into existing 1746 chassis. Its electronically fused design enhances system protection, reducing the risk of damage from overloads.
Technical Specifications Analysis
The 1746-OB16E operates with a backplane current of 135 milliamps at 5 Volts, ensuring efficient power usage within the chassis. At 30 degrees Celsius, the module supports a current of 9 amps, making it suitable for demanding loads. The step response is 60 milliseconds in and 2.5 milliseconds out, providing fast and reliable switching for time-sensitive processes.
Heat dissipation is managed effectively, with 0.388W per output point and 7.6W aggregate for the module. This thermal performance supports stable operation within the 0-60 degrees Celsius temperature range, even in enclosures with limited airflow.
Application Scenarios and Use Cases
In automotive assembly lines, the 1746-OB16E controls solenoid valves and actuators that require high inrush currents. Its 2.0A inrush capability per point for 2ms ensures reliable activation of these devices. In packaging machinery, the module drives DC motors and clutches, benefiting from the 8 amps per module capacity.
For material handling systems, the 1746-OB16E provides consistent output control for conveyor diverters and stops. The 1mA minimum load current per point allows operation with low-power indicators and sensors, adding flexibility to system design.
Customer Case Scenario
A food processing plant experienced frequent failures of older output modules due to high inrush currents from washdown solenoids. By upgrading to the 1746-OB16E, the plant reduced unplanned downtime by 40% and extended module life. This illustration shows how the module's robust electrical characteristics solve real-world challenges.
Compatibility and Integration
The 1746-OB16E mounts in any slot of a 1746 chassis and uses a Removable Terminal Block (RTB) for easy wiring. It is compatible with SLC 500 processors and communicates via the backplane, requiring no additional configuration for basic operation. The module's NEMA ICS 2-230 rating for noise immunity ensures reliable performance in electrically noisy industrial environments.
Market Impact and Business Value
Investing in the 1746-OB16E delivers tangible business benefits. Its high-current capacity reduces the need for external interposing relays, lowering component costs and panel space. The 7.6W heat dissipation minimizes thermal stress on adjacent modules, improving overall system reliability. With a step response of 60 ms in and 2.5 ms out, the module supports faster machine cycles, increasing throughput.
Company Strength and Supply Assurance
Petro Auto Tech specializes in industrial automation parts, offering genuine Allen-Bradley products with reliable availability. Our team provides technical support to help you select the right module for your application. Contact us for competitive pricing and fast shipping on the 1746-OB16E.
Frequently Asked Questions About the 1746-OB16E
What is the operating voltage range of the 1746-OB16E?
The 1746-OB16E operates with a voltage range of 10-30 Volts DC source. This wide range accommodates various 24V DC systems and provides tolerance for voltage fluctuations in industrial environments.
How many outputs does the 1746-OB16E have, and what is the current rating?
The module has 16 outputs, each rated at 1 or 0.5 amps. The total current per module is 8 amps, with a maximum of 9 amps at 30 degrees Celsius. This makes it suitable for high-current applications like solenoid valves and motor starters.
What is the step response time of the 1746-OB16E?
The step response is 60 milliseconds in and 2.5 milliseconds out. This fast switching ensures precise control in time-critical processes, such as packaging and material handling systems.
Is the 1746-OB16E compatible with existing SLC 500 systems?
Yes, the 1746-OB16E is part of the SLC 500 series and fits into any 1746 chassis. It uses a Removable Terminal Block (RTB) for easy installation and maintenance. Please verify current lifecycle status and availability with Petro Auto Tech before ordering.
What is the heat dissipation of the 1746-OB16E?
The module dissipates 0.388W per output point and 7.6W aggregate. This efficient thermal design allows operation within the 0-60 degrees Celsius temperature range without active cooling in most applications.
