ABB UFC721BE101 3BHE021889R0101 ADCVI Signal Board

Technical Specifications

Model: UFC721BE101

Part Number: 3BHE021889R0101

Brand: ABB

Product Type: ADCVI analog‑digital conversion signal board

Matching System: ABB UNITROL 5000 generator excitation system

Power Supply: Cabinet backplane DC power supply

Signal Function: Multi‑channel analog sampling, analog‑digital conversion, signal conditioning

Communication Interface: Internal excitation system high‑speed bus

Isolation Mode: Galvanic isolation for each signal channel

Installation Method: Cabinet plug‑in card installation

Operating Temperature: 0℃ ~ +60℃, non‑condensing

Protection Class: IP20

Weight: 0.62kg

Dimension: 330mm × 215mm × 32mm

Compatible System: Thermal power and hydropower synchronous generator excitation cabinet

Core Function: Collect generator voltage, current and other analog field signals, complete high‑precision analog‑digital conversion, transmit digital sampling data to main control board, provide accurate raw data for excitation regulation algorithm operation.

Product Details

The UFC721BE101 3BHE021889R0101 is ADCVI analog‑digital conversion signal board for ABB UNITROL 5000 generator excitation system.

This UFC721BE101 board is the front‑end sampling component of excitation system, responsible for collecting multi‑channel analog signals from generator side.

It conditions and converts analog voltage and current signals into high‑precision digital signals, which are sent to main processor through internal bus for voltage regulation calculation.

Each signal channel adopts independent galvanic isolation design, which effectively suppresses high‑frequency interference from power unit and improves sampling accuracy and anti‑interference performance.

Built‑in hardware self‑diagnosis function can detect signal over‑range, channel fault and board hardware abnormality, and output corresponding alarm signals.

Coated circuit board design adapts to harsh industrial environment and enhances moisture‑proof and dust‑proof capability.

Standard plug‑in structure supports convenient on‑site maintenance and replacement.

It is widely used in generator excitation system overhaul and renovation projects of thermal power plants and hydropower stations.

It is important spare hardware for excitation system overhaul, analog sampling loop debugging and defective UFC721BE101 board replacement.