SPECIFICATIONS
Part No.: IS230TSVCH1A
Manufacturer: General Electric
Country of Manufacture: United States of America (USA)
Temperature Operating: -30 to 65 o C
Size: 33.0 cm high x 17.8 cm , wide
Product Type: Servo Input/Output Board
Availability: In Stock
Series: Mark VIe
Functional Description
IS230TSVCH1A is a servo input/output board developed by GE. It is a part of Mark VIe control system. The terminal board plays a critical role in interfacing with two electro-hydraulic servo valves responsible for actuating the steam and fuel valves within the system. Valve positioning is monitored through the use of linear variable differential transformers (LVDT). This specialized terminal board is designed explicitly to work with the PSVO I/O pack and the WSVO servo driver, catering specifically to their operational requirements. Notably, it's essential to highlight that this terminal board is incompatible with the VSVO processor.
Valve Actuation and Measurement
- Servo Valve Actuation: Facilitates the control and activation of electro-hydraulic servo valves responsible for manipulating steam and fuel valves within the system.
- Position Measurement: Linear variable differential transformers (LVDT) are employed to accurately measure the position of valves actuated by the servo valves.
Compatibility and Control Modes
- Pack Compatibility: Specifically designed to function with the PSVO I/O pack and the WSVO servo driver, ensuring seamless compatibility and optimal performance.
- Control Modes Supported: The terminal board supports various control modes, including simplex, dual, and TMR (Triple Modular Redundancy), providing flexibility in control configurations.
Power Supplies and External Trip Integration
- Power Input: Three 28 V dc supplies are directed into the terminal board via plug J28, ensuring the necessary power provisions for its operation.
- External Trip Connection: Plug configurations JD1 or JD2 serve as connections for external trip signals originating from the protection module, enhancing system safety by incorporating external trip functionalities.
Valve Control and LVDT Integration
- Valve Actuation: It interfaces directly with electro-hydraulic servo valves, precisely controlling their actuation to manage steam and fuel valves within the system.
- LVDT Utilization: The board utilizes LVDTs to provide accurate positional feedback, ensuring precise monitoring and control over valve positions during operation.
Compatibility and System Safety Features
- Focused Compatibility: This board's design aligns specifically with the PSVO I/O pack and WSVO servo driver, ensuring optimized performance and reliability within the designated system setup.
- External Trip Integration: Integration of external trip connections from the protection module emphasizes an added layer of system safety and fault tolerance, enhancing its robustness during operations.
Control Mode Flexibility and Power Input
- Control Modes Supported: The board offers versatile control modes, allowing for simplex, dual, and TMR configurations, providing adaptability based on system requirements.
Power Supply Configuration: With three 28 V dc supplies via plug J28, the board ensures sufficient power input necessary for its functioning and control operations.
- The terminal board's specialized function in facilitating servo valve control, LVDT-based valve position measurement, and its exclusive compatibility with specific I/O packs and servo drivers highlight its pivotal role in ensuring precise and controlled operation within the designated system framework. Additionally, its support for diverse control modes and integration of external trip signals underscores the board's significance in maintaining system safety and reliability.
Installation
- Installation process involves the direct wiring of sensors and servo valves to two I/O terminal blocks, securing their connections using two screws per block. These terminal blocks consist of 24 terminals each, capable of accommodating wiring of up to #12 AWG gauge.
- Adjacent to these terminal blocks, a shield terminal strip is positioned, serving as a grounding point linked to the chassis ground. This arrangement ensures effective grounding and shielding, essential for maintaining signal integrity and reducing interference in the system's operation.
- External trip integration into the system is facilitated through designated plug-ins, JD1 or JD2, offering connections for external trip wiring. These slots provide pathways for external trip signals, adding an extra layer of safety and fault-tolerance capabilities within the system's setup.
- Each servo output within the system can support three coils arranged in a Triple Modular Redundancy (TMR) configuration. This redundancy ensures reliability, as even in the event of a fault or failure in one of the coils, the system can rely on backup functionality from the remaining coils to maintain operations.
- To tailor the current size for each coil in the servo outputs, specific jumpers control the current selection. For Servo 1, the jumper configuration using JP1, JP3, and JP5 determines the current size, while for Servo 2, the settings are controlled by JP2, JP4, and JP6. This jumper-based approach allows for precise current adjustments, ensuring optimal performance and control within the system's servo setup.
- The installation process involves meticulous wiring and configuration steps for sensor and servo valve integration, grounding through shield terminals, integration of external trip signals, establishment of TMR coil configurations, and fine-tuning of current sizes using jumper settings. These steps collectively ensure proper functionality, reliability, and safety within the servo control system, crucial for the efficient operation of the larger system framework.
The WOC team is always available to help you with your Mark VIe requirements. For more information, please contact WOC.
Frequently Asked Questions
What is IS230TSVCH1A?
It is a Servo Input/Output Board developed by GE under Mark VIe series.
How many LVDT valve position inputs can the TSVC board accommodate?
The board can handle inputs from up to eight LVDT valve position sensors, providing flexibility and scalability in valve position monitoring.
What options are available for the number of LVDTs used in each servo control loop?
Users can choose between one, two, three, or four LVDTs for each servo control loop, tailoring the setup based on specific system requirements.
What is the purpose of the two pulse rate inputs?
The two pulse rate inputs serve the function of measuring gas turbine fuel flow, providing critical data for fuel flow monitoring and management.
