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The GE IS230TNSVH4AAX is a triple-modular redundant (TMR) servo control module assembly for the GE Mark VIe control system. The “AX” in the part number indicates that the module is certified for use in potentially explosive atmospheres as per ATEX standards. This unit is designed for precise, high-reliability control of servo valves in hazardous locations.
Key Features
- Servo Control: The assembly is specifically designed to control servo valves, which are used for the precise, continuous positioning of actuators. This allows for fine-tuned control of a process rather than a simple on/off state.
- TMR (Triple-Modular Redundant): This is the most critical feature. The TMR configuration uses three identical I/O packs operating in parallel. A voting algorithm continuously compares the output signals, ensuring the correct command is sent to the servo valve. This redundancy allows the system to continue operating even if one or two I/O packs fail, making it highly reliable.
- ATEX Certification: The “AX” signifies that the module is certified for safe operation in hazardous environments where flammable gases, vapors, mists, or dust may be present. This is a critical safety requirement in industries like oil and gas.
- Assembly: The part number signifies a complete, ready-to-install unit, consisting of both a terminal board (TSVCH2A) and the electronic I/O packs (PSVOH1B) that process the signals.
- Mark VIe Integration: As part of the IS230 series, this assembly is designed to seamlessly integrate with the Mark VIe control platform, a system widely used for controlling turbines in power generation plants.
Applications
The IS230TNSVH4AAX is used in critical industrial settings where precise control, high reliability, and safety in hazardous locations are essential.
- Power Generation: It is used to control the position of valves that regulate fuel flow and turbine speed. The TMR configuration and ATEX rating are crucial for the safe and reliable operation of gas turbines.
- Oil and Gas: In refineries and offshore platforms, it controls the position of critical valves to regulate flow, pressure, and temperature in a hazardous environment.
- Process Safety: The module’s robust design and redundancy make it suitable for any application where precise control of a continuous process variable is required and where a single point of failure could lead to significant equipment damage or safety risks.
