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ABB Launches UFC921A (3BHE024856P106): Advanced Frequency Converter for Industrial Process Control

ABB Launches UFC921A (3BHE024856P106): Advanced Frequency Converter for Industrial Process Control
ABB has introduced the UFC921A, a high-performance digital frequency converter engineered for precise control and monitoring of rotational speed in a wide range of industrial processes. Marketed under the product number 3BHE024856P106, this device is a key component within ABB’s System 800xA and other distributed control systems (DCS), providing a seamless interface to manage variable frequency drives (VFDs) and other frequency-sensitive equipment.
The UFC921A serves as an intelligent link between a DCS or PLC and the final drive element. It converts standard process signals into precise frequency or RPM setpoints, enabling accurate speed control for pumps, fans, compressors, and conveyors. This enhances process efficiency, improves product quality, and reduces energy consumption. Integrated into the ABB automation architecture, it offers advanced diagnostics, status feedback, and failsafe functionality for reliable operation.
«Precise speed control is fundamental to optimizing industrial processes, from chemical reactions to material flow,» said a product manager at ABB’s Process Automation division. «The UFC921A is engineered to provide that precision with the reliability and integration depth our customers expect. It transforms a basic control signal into an intelligent command for the drive, ensuring smooth operation and providing valuable feedback for the overall control strategy.»
Key Features and Benefits of the UFC921A (3BHE024856P106) include:
  • High-Precision Signal Conversion:​ Provides accurate conversion of analog (4-20 mA) or digital input signals into precise frequency or speed setpoints for drives, with configurable scaling, ramping, and limiting functions.
  • Comprehensive Drive Interface and Diagnostics:​ Features dedicated logic for handling drive start/stop commands, direction control, and monitoring key drive statuses (running, ready, fault), facilitating seamless integration and rapid troubleshooting.
  • Integrated Safety and Control Logic:​ Includes configurable interlock and permissive logic, as well as failsafe output states, ensuring safe equipment operation and automatic responses to process or system faults.
  • Seamless System 800xA Integration:​ Functions as a native field device within the ABB Ability™ System 800xA environment. It is fully configurable and diagnosable through Control Builder M, offering a unified engineering and operator experience.
  • Flexible and Robust Design:​ Suitable for a broad range of applications, from simple fan control to complex multi-drive coordination. Built to industrial standards for reliable performance in demanding plant environments.
The ABB UFC921A frequency converter (3BHE024856P106) is available now for integration into new automation projects and for modernizing existing control systems. It is an essential component for process engineers seeking to implement efficient, reliable, and well-integrated variable speed control within a comprehensive plant-wide automation architecture.

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