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The GE IS200TVIBH2A is a Vibration Terminal Board for the Mark VI series of GE’s Speedtronic Gas Turbine Control Systems. It acts as an interface, connecting up to 14 vibration probes to the main VVIB board in the control system. The ‘H2A’ designation indicates that the board includes BNC connectors, which allow for quick and easy connection of portable vibration analysis equipment.
There is a similar part, IS200TVIBH2B, which appears to be a newer version or a direct substitute. Many suppliers list both models and confirm that the H2B is compatible with both the Mark VI and Mark VIe control systems. The primary function remains the same: to collect and route vibration data from sensors to the controller.
Key Features and Functionality
The IS200TVIBH2A and its counterpart, the H2B, are critical components for maintaining the health and longevity of rotating machinery like turbines. Here’s how they work:
- Vibration Monitoring: The board is designed to interface with various types of vibration probes, including proximity, velocity, acceleration, seismic, and phase sensors. These probes measure different aspects of the machine’s movement, providing a comprehensive picture of its operational state.
- Signal Processing: The board receives the analog signals from the vibration probes and sends them to the VVIB board. The VVIB board then processes and digitizes these signals before sending the data to the main controller. The controller can then use this data to generate alerts or trigger a trip (shutdown) if vibration levels exceed safe limits.
- Dual Functionality: The board supports both Simplex and TMR (Triple Modular Redundancy) systems. In a TMR setup, a single TVIB board can be connected to three VVIB boards, providing a redundant system for enhanced reliability and safety.
- Maintenance Features: The H2A and H2B boards feature BNC connectors, which are a significant benefit for maintenance. These connectors allow technicians to quickly plug in portable vibration data collection equipment, enabling them to perform on-site analysis without interrupting the permanent monitoring system. This feature is invaluable for preventive and predictive maintenance programs.
Technical Specifications
