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The GE IS230TRLYH2E is a triple-modular redundant (TMR) relay output assembly for the GE Mark VIe control system. This is a complete, pre-configured unit designed for highly reliable and fault-tolerant control of output devices in mission-critical applications.
Key Features
- Triple-Modular Redundant (TMR): The most critical feature. The TMR configuration uses three identical I/O packs operating in parallel. A voting algorithm compares the commands from all three packs, ensuring the control system sends the correct signal even if one or two modules fail. This redundancy is crucial for applications where a single point of failure cannot be tolerated.
- Relay Output: The module’s primary function is to provide relay output, which allows the control system to switch circuits on or off to control a variety of field devices like solenoids, motor contactors, or alarms. The relays provide electrical isolation between the control system and the device being controlled.
- Assembly: The part number signifies a complete, ready-to-install unit, consisting of both a terminal board and the electronic I/O packs.
- Mark VIe Integration: As part of the IS230 series, this assembly is a key component of the Mark VIe control platform, widely used for controlling turbines in power generation and other heavy industries.
Applications
The IS230TRLYH2E is used in mission-critical industrial settings where a loss of control could lead to a catastrophic event or significant downtime.
- Power Generation: It is a core component in power plants for connecting the wiring from critical relays and contactors to the control system, ensuring a single-point failure does not compromise the control or safety system.
- Oil and Gas: In refineries and offshore platforms, it provides a stable and redundant connection for the wiring of emergency shutdown valves, fire and gas detectors, and other critical process equipment.
- Safety Instrumented Systems (SIS): The module’s TMR design makes it suitable for use in safety-instrumented systems, where the goal is to bring a process to a safe state when dangerous conditions are met.
