Product Overview

• Part No: UCD224A103, alternative order code 3BHE023681R0103
• Brand: ABB

• Category: Main Control BoardUCD224A103 is a core control board used in ABB medium voltage power conversion equipment. It executes control algorithms, processes feedback signals from power units, sends trigger instructions and realizes data communication with upper controllers. This board coordinates all functional units inside the power cabinet, undertakes closed-loop regulation logic, and ensures stable operation of rectifier, inverter and power adjustment systems. It is a critical replacement spare part for industrial power electronic equipment maintenance.

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Core Features

• High-speed signal processing capability, supports real-time closed-loop control algorithm operation
• Multiple onboard communication interfaces, reliable data exchange with peripheral modules
• Comprehensive hardware self-diagnosis function, monitoring circuit status and reporting fault alarms
• Built-in multi-level protection logic for overvoltage, overcurrent and abnormal operating conditions
• Optimized PCB anti-interference layout, adapts to complex electromagnetic environment in power cabinets

• Standard plug-in board design, convenient disassembly and direct on-site replacement

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Technical Specifications

• Supply Voltage: 24VDC
• Operating Temperature: -20°C ~ +60°C
• Storage Temperature: -40°C ~ +85°C
• Installation: Standard rack slot mounting

• Protection Class: IP20, indoor control cabinet installation

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Compatibility & Application

• Matched with ABB medium voltage drives, SVC static var compensators and generator excitation systems
• Widely applied in power plant auxiliary equipment, metallurgical power supply, industrial medium voltage transmission and power quality management projects