Product Overview

• Part No: NU8976A
• Alternative Part Code: HIEE220295R0001
• Brand: ABB
• Type: Microprocessor Control Module

• Function: Process analog and digital signals, execute closed-loop control algorithms, and realize data interaction between the upper system and field execution units in power plant excitation & turbine control racks.

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Core Features

• High-speed onboard processor for real-time data computation and logic judgment
• Galvanic isolation between internal circuit and external signal terminals to resist electromagnetic interference
• LED indicators to display power status, running mode and fault alarms
• Conformal coating for dustproof, moistureproof and anti-corrosion performance

• Standard VME rack plug-in structure, support hot swap under redundant power supply

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Technical Specifications

• Power Supply: 24VDC supplied via rack backplane
• Operating Temperature: -40℃ ~ +85℃
• HS Code: 85389091

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

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Compatibility

• Matches ABB Advant OCS DCS, generator excitation control system and steam turbine control cabinet

• Direct replacement for modules with identical part number during on-site maintenance

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Application

• Core control unit for turbo generator and hydroelectric unit excitation systems in thermal power and hydropower stations
• Spare part replacement and inventory reserve for industrial automation and power plant control cabinets