UAA326A02 HIEE300024R2 Board module

Brand: ABB

Product Series: AC 800PEC / UNITROL / Power Electronics Control Series

Model: UAA326A02 (Part Number: HIEE300024R2)

Product Type: High-Reliability DC Control and Power Regulation Board

UAA326A02 HIEE300024R2 Board module

Technical Parameters:

Module Function: Serves as a specialized DC power conditioning, monitoring, and drive control board designed to provide regulated voltage rails and protection logic for sub-rack hardware.

Input Power Distribution: Configured for standard industrial 24 VDC primary control voltage inputs.

Onboard Output Voltages: Features embedded multi-rail DC-to-DC step-down conversion stages providing stable 3.3V, 5V, and 12V DC power paths to adjacent processing logic.

Rated Module Power: Optimized internal thermal dissipation framework rated up to 50W.

Protection Logic Matrix: Integrated hardware-level protective loops that execute real-time monitoring for field overvoltage, overcurrent, and output short-circuit conditions.

Signal Isolation: Built-in galvanic isolation barriers designed to completely separate computing microprocessors from field-side electrical switching transients and ground potential shifts.

Diagnostic Indicator Array: Onboard status LEDs providing immediate visual tracking of input line health, active secondary DC voltage generation, and localized fault trip registers.

Thermal Operational Range: Certified to function continuously within industrial ambient temperatures ranging from -25°C to +70°C.

Mechanical Layout: Compact, robust printed circuit board form factor measured at approximately 160 mm x 100 mm x 25 mm, weighing around 500g, engineered for secure slide-in sub-rack positioning.

Industrial Sectors:

Electrical Power Generation Stations (Hydroelectric, Thermal, and Gas Turbine Utilities), High-Voltage Grid Substations, Heavy Metallurgical Processing Facilities, and Large-Scale Industrial Automation Systems.

Application Scenarios:

1. Generator Excitation Power Conditioning: Installed inside ABB UNITROL excitation cubicles to manage the localized DC distribution networks, feeding stable, isolated control voltage to Automatic Voltage Regulator (AVR) processor modules.

2. High-Power Frequency Converter Logic Supply: Deployed within static frequency converters (SFC) or medium-voltage drive backplanes to supply secondary logic rails (3.3V/5V/12V) directly to critical gate-driver interface arrays.

3. Automated System Interlock Tracking: Integrated within substation Marshalling panels to scan hardware-level auxiliary sensor inputs, enforcing quick electrical trips if supply thresholds drift out of spec.

4. Remote Terminal Monitoring Node Support: Used in harsh processing environments to isolate field telemetry networks and protect master programmable logic controllers (PLCs) against external ground loop surges.