ALLEN-BRADLEY 1336-BDB-SP31D Adjustable Frequency AC Drive

Technical Specifications

Main Features and Advantages

Enhanced Reliability with ForceCool Technology: The standout feature of the ALLEN-BRADLEY 1336-BDB-SP31D​ is its integrated ForceCool system. This system employs an externally mounted, high-performance fan that actively forces air across the drive’s heat sink. This design provides superior cooling efficiency compared to standard convection-cooled drives. The primary advantage is significantly improved thermal management, which reduces the thermal stress on power components like IGBTs and diodes. This results in higher reliability, extended component life, and the ability to operate the ALLEN-BRADLEY 1336-BDB-SP31D​ at its full rated current in higher ambient temperatures or in installations with limited airflow, making it ideal for crowded electrical panels or hot industrial environments.Advanced Motor Control and Performance: The drive offers versatile control capabilities to suit various application needs. It features both standard Volts-per-Hertz (V/Hz) control for simple applications and Sensorless Vector Control for enhanced performance. Sensorless Vector control provides improved low-speed torque, better speed regulation, and faster dynamic response, making the ALLEN-BRADLEY 1336-BDB-SP31D​ suitable for demanding applications like conveyors, mixers, and certain types of presses. Its standard dynamic braking transistor allows for rapid motor deceleration when paired with an external braking resistor, reducing cycle times and improving process control. The comprehensive programming capability, accessible via the keypad or software, allows for fine-tuning of acceleration/deceleration ramps, current limits, and numerous application-specific parameters.Robust Design and Seamless Integration: Built for industrial durability, the ALLEN-BRADLEY 1336-BDB-SP31D​ includes features to ensure stable operation. It offers a degree of power line disturbance immunity and includes standard protective features such as motor overload protection, short-circuit protection, ground fault protection, and overvoltage/undervoltage protection. Its flexible I/O configuration allows for direct interfacing with start/stop signals, speed references, and fault indicators. The integrated RS-485 communication port, supporting the DF1 protocol, enables easy networking with Allen-Bradley programmable logic controllers (PLCs) and human-machine interfaces (HMIs) for seamless integration into a Plant-wide control architecture, allowing for centralized monitoring, control, and data collection.

Application Field

The ALLEN-BRADLEY 1336-BDB-SP31D​ is a versatile drive deployed across numerous industries for applications where reliable variable speed control is essential. In material handling, it is commonly used to control conveyor belts, providing smooth starting and stopping to prevent spillage and belt wear, and allowing for precise speed synchronization of multiple conveyors. Its robust design and ForceCool feature make it suitable for the dusty and variable-temperature environments often found in packaging lines, warehouse automation, and airport baggage handling systems. The drive’s adjustable acceleration/deceleration ramps and braking capability are critical for these applications.In industrial HVAC and building services, the ALLEN-BRADLEY 1336-BDB-SP31D​ is an excellent choice for controlling fans and pumps. By adjusting the speed of a fan or pump motor to match the exact system demand, the drive can achieve dramatic energy savings compared to constant-speed operation with throttling valves or dampers. The ForceCool capability ensures reliable operation in hot mechanical rooms. This applies to centrifugal pumps in water circulation systems, exhaust fans in manufacturing facilities, and cooling tower fans. Its reliability is key in these applications, as failures can lead to process interruptions or loss of environmental control.Furthermore, the drive finds extensive use in various general manufacturing processes. It can power machine tools for controlling spindle speeds, operate mixers and agitators in chemical or food processing at variable speeds for different product batches, and drive extruders in plastics manufacturing. The ALLEN-BRADLEY 1336-BDB-SP31D‘s sensorless vector control provides the necessary torque and speed stability for these more demanding applications. Its compatibility with the Allen-Bradley control ecosystem also makes it a preferred choice in facilities standardized on Rockwell Automation platforms, where it can be easily programmed, monitored, and integrated into a cohesive automated system for production machinery, test stands, and automated assembly lines.