Industry Trends in Digital Output Modules
The demand for reliable digital output modules continues to grow as manufacturing facilities upgrade to more automated and efficient systems. Engineers require components that can handle high-current loads while maintaining precise control over actuators and indicators. The Allen-Bradley 1746-OB16E addresses these needs with its robust design and proven performance in the SLC 500 platform.
Introducing the 1746-OB16E Digital DC Output Module
When high-current switching is required in a 24V DC control system, the Allen-Bradley 1746-OB16E provides a dependable solution. This SLC 500 digital output module offers 16 source outputs with a voltage range of 10 to 30 volts DC. It is designed to mount in any available slot of a 1746 chassis and uses a removable terminal block for easy wiring.
Technical Specifications Analysis
The 1746-OB16E delivers a current per output of either 1 amp or 0.5 amps, with a total module current of 8 amps at 60 degrees Celsius and 9 amps at 30 degrees Celsius. Its backplane current draw is 135 milliamps at 5 volts, and it features a step response of 60 milliseconds on and 2.5 milliseconds off. The module also dissipates 7.6 watts of heat across all outputs, with 0.388 watts per point.
Application Scenarios and Use Cases
In automotive assembly lines, the 1746-OB16E can drive high-current solenoids and motor starters directly from a SLC 500 controller. For material handling systems, it provides reliable on/off control for conveyor actuators and warning lights. The module's electronically fused outputs protect against overcurrent conditions, reducing downtime in critical processes.
Customer Case Scenario
A packaging facility needed to upgrade its legacy output modules to handle higher inrush currents from new pneumatic valves. By integrating the 1746-OB16E, the facility achieved consistent switching performance with a 2.0 amp inrush capability per point for 2 milliseconds. This illustration shows how the module meets demanding industrial requirements.
Compatibility and Integration
The 1746-OB16E is fully compatible with the SLC 500 family of controllers and 1746 chassis. It integrates seamlessly with existing Allen-Bradley systems, supporting both local and remote I/O configurations. The module's NEMA ICS 2-230 noise immunity rating ensures stable operation in electrically noisy environments.
Market Impact and Business Value
By using the 1746-OB16E, facilities can reduce spare parts inventory due to its high-current capability across multiple output points. The module's 8 amp total current capacity minimizes the need for additional I/O modules, lowering overall system cost. Its robust design also extends equipment life in harsh industrial settings.
Company Strength and Supply Assurance
Petro Auto Tech offers the Allen-Bradley 1746-OB16E with reliable sourcing and fast delivery. Our team ensures each module meets original specifications, providing peace of mind for critical automation projects. Contact us for current pricing and availability.
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 to 30 volts DC source, making it suitable for standard 24V DC industrial control systems.
How many outputs does the 1746-OB16E have?
This module provides 16 digital DC outputs, each capable of sourcing 1 amp or 0.5 amps depending on the load requirements.
What is the backplane current draw of the 1746-OB16E?
The module draws 135 milliamps at 5 volts from the backplane, which is important for calculating total power supply capacity in a SLC 500 system.
Can the 1746-OB16E handle high inrush currents?
Yes, each output point can handle an inrush current of 2.0 amps for 2 milliseconds, repeating every 1 second at 30 degrees Celsius, making it suitable for driving solenoids and lamps.
What is the heat dissipation of the 1746-OB16E?
The module dissipates 7.6 watts total, with 0.388 watts per output point, which should be considered when designing enclosure ventilation.
