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SKU: DS200TCQCG1BJF
GE DS200TCQCG1BJF Analog I/O Expander Board
The GE DS200TCQCG1BJF (TCQC) is a 32-channel Analog I/O Expander Board for the Speedtronic Mark V control system. It provides LVDT/LVDR excitation, scales 4–20 mA megawatt signals, and manages pulse rate inputs for turbine shaft speed. This RST Overflow board supports redundant architectures and features 24 jumpers for precise hardware configuration in demanding power generation environments.
Technical Functionality
The GE DS200TCQCG1BJF, functionally abbreviated as TCQC, operates as a specialized Analog I/O Expander Board (commonly referred to as an RST Overflow Board) for the Speedtronic Mark V turbine control system. This module plays a vital role in high-density data acquisition by scaling and conditioning additional analog signals that exceed the capacity of the primary I/O cores. Specifically, it manages the excitation for LVDT (Linear Variable Differential Transformer) and LVDR (Linear Variable Differential Resistor) sensors, converting their raw feedback into precise digital data for the control processors. By offloading these signal processing tasks, the board ensures that the main system can monitor complex turbine parameters without latency.
Operational Performance
This board enhances system reliability by facilitating communication between the I/O terminal boards and the STCA or TCQA boards. It utilizes high-speed IONET termination to maintain data integrity across the R, S, and T redundant cores, preventing signal loss during critical turbine operations. Furthermore, the DS200TCQCG1BJF processes pulse rate inputs, such as those from liquid fuel flow meters and high-pressure shaft speed sensors, ensuring highly accurate speed control and fuel metering. The board also features a normal PCB coating to protect internal components from dust and standard industrial humidity, while its onboard relays switch circuits automatically based on system logic.
Key Technical Characteristics
- Expanded Analog Capacity:Â Extends the Mark V system’s ability to handle high-volume analog feedback.
- Signal Conditioning: Scales 4–20 mA current signals, including megawatt transducer data, for the system backplane.
- Excitation Support: Provides the necessary drive signals for LVDT/LVDR precise position sensing.
- Complex Connectivity: Incorporates three 40-pin connectors (JFF, JE, 6PL), three 34-pin connectors (JFF, 1PL, JA), and one 16-pin connector (JC).
- Hardware Configurability: Features 24 hardware jumpers to set servo valve regulator output ranges and feedback scaling.
- High-Speed Processing:Â Manages pulse rate inputs for real-time monitoring of turbine shaft speed.
- Redundant Architecture: Supports single, dual, or Triple Modular Redundancy (TMR) configurations.
Primary Industrial Applications
- Gas Turbine Control:Â Monitoring and regulating gas control valves and speed ratio valve positions.
- Power Generation:Â Conditioning megawatt transducer signals to ensure accurate power output reporting.
- Steam Turbine Monitoring:Â Managing shaft speed and vibration data in utility-scale thermal plants.
- Actuator Feedback:Â Integrating feedback from servo valves and position sensors into the automated control loop.
Technical Specifications
- Manufacturer:Â GE (General Electric)
- Model Number:Â DS200TCQCG1BJF
- Series:Â Speedtronic Mark V
- Functional Abbreviation:Â TCQC
- Input Voltage:Â 28 V DC
- Operating Temperature: -30°C to +65°C
- Dimensions:Â 23.8 cm x 8.6 cm
- Weight:Â 0.45 kg
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GE IS230JPDMG1B Mark VIe Series Power Distribution (JPDM) Module
​Centralized Power Distribution for Mark VIe Systems
The GE IS230JPDMG1B serves as a specialized Power Distribution (JPDM) Board within the Mark VIe Distributed Control System (DCS). This module functions as a critical junction point, receiving 28 V DC input from external AC/DC or DC/DC converters and distributing it to various system components. Because it supports the heavy-duty requirements of industrial automation, the board provides a steady-state capacity of 24 A across its distribution network. By centralizing the power entry point, the IS230JPDMG1B ensures that controllers and I/O packs receive regulated, reliable voltage, which is fundamental to the stability of the entire control architecture.Flexible Bus Configuration and Redundancy
Regarding its electrical architecture, the IS230JPDMG1B manages three independent power buses designated as R, S, and T. However, the board offers significant configuration flexibility through the use of onboard jumpers, allowing engineers to parallel these buses for redundant power supply applications. This redundancy is vital for high-availability systems where power failure on a single bus cannot be permitted to interrupt the process. Furthermore, the module allows for the interconnection of two adjacent JPDM boards via terminal boards (TB1 and TB2), effectively expanding the distribution capacity for larger, more complex industrial installations.Advanced Diagnostic Feedback and Circuit Protection
In addition to power routing, the IS230JPDMG1B incorporates sophisticated monitoring and protection mechanisms. The board features three fused Mate-N-Lok connectors (JCR, JCS, JCT), each safeguarded by a 10 A fuse to protect downstream loads from overcurrent conditions. To facilitate real-time diagnostics, the module utilizes a DC-62 connector (JA1) to interface with the PPDA I/O pack. This connection transmits feedback signals regarding fuse health and bus voltage status. Moreover, two 50-pin ribbon cable connectors (P1 and P2) allow for seamless diagnostic signal transmission between multiple boards. Consequently, operators can monitor power conditions continuously through the Speetronic MKVI control interface.Technical Specifications
- Brand:Â General Electric (GE)
- Model Number:Â IS230JPDMG1B
- Product Series:Â Mark VIe / EX2100
- Component Type:Â Power Distribution (JPDM) Feedback Module
- Input Voltage:Â 28 V DC (Nominal)
- Current Capacity:Â 24 A Steady-state
- Bus Architecture:Â Triple independent buses (R, S, T)
- Protection:Â 10 A fuses per distribution connector
- Connectivity:Â DC-62 Feedback connector, 50-pin ribbon cable ports
- Weight:Â 1.02 kg
- Dimensions:Â 20.5 cm x 17.0 cm x 7.5 cm
- Origin:Â USA
- System Type:Â DCS / Turbine Excitation
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