Product Overview

• Part No: UAC326AE
• Alternative Part Code: HIEE401481R0001
• Brand: ABB
• Type: Excitation System Integrated I/O Module

• Function: Collect analog voltage/current signals and digital switching status from generator units; forward control instructions to field actuators; realize data interaction between excitation master unit and peripheral devices.

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Core Features

• Built-in galvanic isolation between field circuits and backplane bus to avoid interference and circuit damage
• Onboard LED indicators for power, running status and channel fault alarm
• Conformal coating for dust-proof, moisture-proof and anti-electromagnetic interference
• Support Modbus, Profibus and RS485 multi-protocol communication

• Standard rack plug-in structure, hot-swappable under redundant power supply

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Technical Specifications

• Power Supply: 24VDC supplied via rack backplane
• Operating Temperature: -25℃ ~ +70℃
• Protection Grade: IP20, only for cabinet internal installation
• HS Code: 85389091

• Supply: Brand new original and fully tested refurbished modules available

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Compatibility

• Matches ABB UNITROL series generator excitation control system and Advant OCS DCS rack

• Direct plug-and-play replacement for modules with identical part number

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Application

• Signal acquisition and loop control for turbo generator and hydro generator excitation cabinets in thermal power and hydropower plants
• On-site equipment maintenance replacement and spare part inventory backup for power station automation systems