SPECIFICATIONS
Part Number: DS200TCCAG1AGA
Manufacturer: General Electric
Country of Manufacture: United States (USA)
Series: Mark V
Function: Common Analog I/O Board
Functional Description
DS200TCCAG1AGA is a common analog I/O board developed by GE. It is part of the GE Speedtronic Mark V control system. The Common Analog I/O Board (TCCA), located in the R5 core, plays a crucial role in the control system by scaling and conditioning analog signals. It processes inputs from several terminal boards mounted in the R5 core, including the CTBA, TBQA, and TBCA.
Connectors
- 2PL Connector: This connector is responsible for distributing power from the TCPS (Temperature Control Power Supply) board located in the core. It ensures that the TCCA board receives the necessary electrical power to operate.
- 3PL Connector: The 3PL connector establishes the data bus communication between the STCA (Signal Transmission Control Assembly), TCCA, and TCCB (Temperature Control Communication Board) boards within the core. It carries conditioned signals from the TCCA to the COREBUS, facilitating the transfer of processed data throughout the system.
- JAA Connector: This connector is used to carry 4–20 mA output signals to the CTBA (Current Transformer Breakout Assembly) terminal board. It ensures that the analog output signals processed by the TCCA are transmitted to the appropriate terminal board for further use.
- JBB Connector: The JBB connector is responsible for carrying shaft voltage and current signals, as well as 4–20 mA input signals from the CTBA terminal board. It allows the TCCA to receive and process data related to shaft voltage, shaft current, and analog inputs.
- JCC Connector: This connector carries RTD (Resistance Temperature Detector) input signals from the TBCA (Terminal Board with Connection Assembly) terminal board. It facilitates the transmission of temperature measurement data from the RTDs to the TCCA for processing.
- JDD Connector: Similar to the JCC connector, the JDD connector also carries RTD input signals from the TBCA terminal board. This redundancy ensures reliable transmission of temperature data to the TCCA.
- JAR/S/T Connectors: These connectors are used to carry thermocouple input signals and cold junction compensation inputs from the TBQA (Terminal Board with Quick Disconnect) terminal board. They handle temperature measurement signals from thermocouples and ensure accurate temperature readings by compensating for cold junction effects.
- JC Connector: The JC connector is used to carry power supply diagnostic signals from the TCPS board. It allows for monitoring and diagnosing the power supply to ensure the TCCA board operates correctly.
- JEE Connector: Typically not used, the JEE connector is reserved for potential future use or for specific configurations that may not be commonly required.
Shaft Monitoring
- The board is responsible for overseeing both shaft voltage and shaft current. These parameters are crucial for assessing the condition of the turbine shaft and detecting issues such as electrical imbalances or insulation failures.
- The shaft voltage and current signals are collected from the CTBA terminal board. This terminal board interfaces with the board through the JBB connector.
- JBB Connector serves as the conduit for transmitting shaft voltage and current signals, as well as 4–20 mA input signals, from the terminal board to the TCCA. The JBB connector ensures that the signals are accurately and efficiently transferred for further processing.
- Once the board receives the shaft voltage and current signals via the JBB connector, it scales and conditions these signals to prepare them for subsequent data handling.
- The conditioned shaft voltage and current signals are then transmitted to the I/O Engine through the 3PL connector. This connector facilitates the communication of processed data between the TCCA board and the I/O Engine, integrating the signals into the broader control system for real-time monitoring and analysis.
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FREQUENTLY ASKED QUESTIONS
What is DS200TCCAG1AGA?
It is a common analog I/O board and is part of the GE Speedtronic Mark V gas turbine control system.
What is the function of the JBB connector in the monitoring process?
The JBB connector is used to carry shaft voltage and current signals, along with 4–20 mA input signals, from the terminal board to the TCCA. It is essential for transmitting these signals accurately for processing.
What is the role of the 3PL connector in shaft monitoring?
The 3PL connector is responsible for transmitting the conditioned signals from the TCCA board to the I/O Engine. It ensures that the processed shaft voltage and current data are integrated into the control system for monitoring and analysis.
How does the board contribute to the overall turbine control system?
The board contributes by providing critical data on shaft voltage and current, enabling real-time monitoring and analysis. This information is crucial for maintaining turbine health, preventing potential issues, and ensuring safe and efficient operation.
