Product Overview

• Part No: AH116-2
• Brand: ALSTOM

• Category: Turbine Main Control BoardAH116-2 is a standard Eurocard plug-in main control board developed by ALSTOM for turbine control platforms. The board collects real-time signals from speed, pressure, temperature and displacement sensors, executes governing control algorithms and interlock protection logic. It outputs regulating commands to servo actuator modules to realize valve position closed-loop control, and completes data interaction with upper monitoring system. With multi-channel analog and digital signal interfaces, it undertakes core signal processing and operation calculation tasks of the turbine control system. It is an essential replacement spare part for maintenance, overhaul and upgrading of power plant steam turbine and gas turbine control cabinets.

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Core Features

• High-speed signal acquisition and real-time governing logic calculation for turbine control
• Integrated multi-channel analog input, analog output and binary I/O signal conditioning circuit
• Built-in comprehensive hardware self-diagnosis function, real-time fault detection and alarm output
• Multiple industrial bus interfaces supporting internal rack communication and external system data exchange
• Standard front pull-out Eurocard structure, convenient disassembly and direct rack replacement on site
• Optimized PCB anti-interference layout, conformal coating option for humid power plant environment

• Passed thermal cycling, vibration and EMC reliability testing, suitable for long-term continuous operation

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Technical Specifications

• Supply Voltage: 24VDC
• Operating Temperature: -20°C ~ +60°C
• Storage Temperature: -40°C ~ +85°C
• Installation: Standard subrack slot mounting inside turbine control cabinet

• Protection Class: IP20

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Compatibility & Application

• Matched with ALSTOM legacy steam turbine and gas turbine control system racks
• Widely applied in thermal power plant turbine control cabinet maintenance and transformation projects
• Used for rotating speed regulation, control valve servo control, operating parameter monitoring and protection interlock logic processing