ABB UAD155A0111 3BHE029110R0111 High‑Speed Mixed I/O Signal‑Processing Module

Description

Hardware and Performance Specifications Auxiliary supply: 24 V DC, support 9‑36 V DC wide‑range input Power consumption: ≤18 W Analog channels: multi‑channel galvanic‑isolated analog input for generator voltage, stator current, rotor excitation current and cabinet temperature signals; high‑speed 16‑bit ADC sampling Binary I/O: multi‑group high‑speed isolated digital input and output channels, for fast protection interlock, cabinet status acquisition and alarm‑trip signal output Communication interfaces: AC800PEC rack internal back‑plane high‑speed bus Mounting mode: rack plug‑in module for excitation cabinet AC800PEC rack Operating temperature: 0 ℃ ~ +60 ℃ Storage temperature: ‑40 ℃ ~ +85 ℃ Humidity: 5‑95 %RH non‑condensing EMC compliance: IEC 61000‑4 series industrial electromagnetic compatibility standards Dimension & weight: approx. 210 × 145 × 50 mm, weight about 1.35 kg Certifications: CE approval

Main Functions Realize isolation filtering and signal conditioning for generator terminal voltage, stator current, rotor excitation‑current analog signals, restrain strong electromagnetic interference in power‑plant field environment. Complete high‑speed A/D conversion for excitation‑system measuring analog quantities, transmit sampling data to excitation main‑controller through back‑plane bus. Collect high‑speed binary interlock signals and conventional cabinet status signals: breaker auxiliary contact, cooling‑fan status, cooling‑water flow, cabinet‑door interlock and other switch‑quantity signals. Receive fast protection commands issued by main‑controller, output binary interlock, trip and alarm signals with short response latency. Front‑panel LED indicators display channel operating status and fault codes. Hardware self‑diagnosis detects channel abnormality and internal circuit fault, upload fault information to main‑controller. Channel parameter configuration and debugging are finished by UNITROL Configurator and Control Builder M engineering software.

Installation Requirement Plug‑in installation inside AC800PEC rack of excitation cabinet. High‑power cables and weak‑signal sampling cables shall be routed separately, ensure reliable cabinet grounding. Auxiliary 24 V DC power supply must stay within rated working range. After module replacement, confirm hardware suffix version A0111 strictly matches original project configuration, download complete excitation project configuration file. Perform analog‑channel calibration, binary‑I/O point‑to‑point test and back‑plane bus communication inspection. This module must cooperate with excitation main‑controller and cannot run alone. It cannot be directly interchanged with UAD149 series modules without software adaptation and hardware matching. Confirm no hardware self‑diagnosis fault alarm before commissioning.

Typical Application Scenarios High‑speed mixed‑I/O signal‑processing module for UNITROL6000/6800 static excitation‑systems of medium‑large synchronous‑generators in thermal‑power plants, hydropower plants and nuclear‑power‑plants, used for excitation‑cabinet maintenance and spare‑part replacement.

Key Features

1. Special high‑speed mixed‑I/O module for AC800PEC excitation platform, faster signal response than UAD149 series, suitable for scenarios requiring fast‑protection interlock.
2. Provide galvanic isolation for CT/VT measuring loop, improve anti‑interference performance of sampling channels under complex field conditions.
3. Integrate multi‑channel analog and high‑speed binary signal processing resources, act as signal interface between field hardware and excitation main‑controller.
4. Rack plug‑in mechanical structure, convenient for on‑site replacement and maintenance.
5. Built‑in channel self‑diagnosis function, easy for on‑site fault locating.
6. Important maintenance spare‑part for ABB UNITROL excitation‑systems; strict attention to suffix‑version matching during spare‑part replacement, cannot arbitrarily replace with UAD149 series.