SPECIFICATIONS
Part Number: DS200FCGDH1ABA
Manufacturer: General Electric
Series: LCI
Product Type: Gate Distribution and Status Card
Size: 9.2x6.3 inches
Temperature 0 to 60oC (32 to 149 oF)
Availability: In Stock
Country of Manufacturer: United States (USA)
Functional Description
DS200FCGDH1ABA is a Gate Distribution and Status Card developed by General Electric. It is a part of LCI innovation series. The Gate Distribution and Status Card (FCGD) serves as a critical interface board within a 6-pulse phase-controlled non-reversing bridge configuration. It acts as an interface board between the control system and the 6-pulse phase-controlled non-reversing bridge. It receives SCR firing information from the DS200DSPC (DSPC) board, which serves as the VME processor, and facilitates communication between the control system and the bridge components.
Features
- Signal Distribution and Decoding: One of the key functions is to decode and distribute cell gating signals for each bridge leg. These signals are essential for controlling the firing of Silicon Controlled Rectifiers (SCRs) within the bridge, ensuring precise synchronization and operation of the power conversion process.
- Feedback and Diagnostic Information: In addition to distributing gating signals, the FCGD also receives feedback and diagnostic information from the bridge components. This includes multiplexed cell status signals from each bridge leg, as well as bridge feedback signals such as voltage, frequency, and current status information.
- Communication with DSPC Board: Communicates bidirectionally with the DSPC board via the VME backplane. It sends feedback and diagnostic information received from the bridge components back to the DSPC board, enabling comprehensive monitoring and control of the bridge operation.
- Signal Scaling and Transmission: Furthermore, scales bridge feedback signals to ensure compatibility with the input requirements of the DSPC board. This involves converting voltage, frequency, and current status information into a format suitable for transmission over the VME backplane, facilitating seamless integration with the control system.
Firing Commands
- Firing Mask Register: Utilizes a firing mask register to control the activation of fiber-optic transmitters. This register contains six entries, each corresponding to one of the six cell strings in a bridge configuration. Each entry in the firing mask register represents a command to either activate or deactivate the corresponding fiber-optic transmitter.
- Control of Fiber-Optic Transmitters: By manipulating the entries in the firing mask register, it can selectively turn on or off up to six fiber-optic transmitters at any given time. This capability allows for precise control over the firing of Silicon Controlled Rectifiers (SCRs) within the bridge, ensuring synchronized operation and efficient power conversion.
- Writing to the Firing Mask Register: The contents of the firing mask register can be modified directly by the host CPU over the VME bus connection. This means that the control system's central processing unit (CPU) can issue commands to update the firing mask register as needed. By writing new values to the register, the CPU can dynamically adjust the firing sequence and configuration of the bridge, enabling adaptive control based on system requirements and operating conditions.
- Integration with VME Bus Connection: The ability to write to the firing mask register over the VME bus connection provides a convenient and efficient means of communication between the host CPU and the FCGD. This bi-directional communication pathway allows for seamless integration of firing command control into the broader system architecture, facilitating coordinated operation of the bridge components.
Cell Status Feedback
- Feedback Sources: Receives feedback signals through fiber-optic connections from three Field-Programmable Gate Array (FPGA) boards. These feedback signals provide vital information about the operational status of the bridge components, including the status of individual leg cells and the power supply.
- Content of Feedback: The feedback signals comprise two sets of leg cell status signals, representing the operational status of the bridge's individual cell strings. Additionally, the feedback includes power supply status signals, indicating the operational status of the power supply unit. These signals are combined into a single 16-bit value for processing and storage within the FCGD system.
- Storage in Cell Status Register: Upon receiving the feedback signals, system stores the information in a dedicated cell status register. This register serves as a repository for the received feedback data, allowing for easy access and retrieval by the control system for monitoring and analysis purposes.
- Importance of Feedback: The cell status feedback provides valuable insights into the operational health and performance of the bridge components. By monitoring the status of individual leg cells and the power supply, the control system can identify and address any abnormalities or issues promptly, ensuring the reliability and efficiency of the bridge operation.
- Integration with Control System: The feedback data stored in the cell status register is accessible to the control system, allowing for real-time monitoring and analysis of bridge performance. This integration enables the control system to make informed decisions and take appropriate actions to optimize bridge operation and maintain system integrity.
WOC has the largest stock of Speedtronic control spares. Please contact our staff by phone or email for pricing and availability on any parts and repairs
FREQUENTLY ASKED QUESTIONS
What is DS200FCGDH1ABA?
It is a gate distribution and status card developed by General Electrics.
What is cell status feedback in the system?
Cell status feedback refers to the vital information received by the FCGD system regarding the operational status of individual leg cells and the power supply within the bridge configuration.
How is cell status feedback received in the system?
Cell status feedback is received through fiber-optic connections from three Field-Programmable Gate Array (FPGA) boards, which provide feedback signals indicating the status of leg cells and the power supply.
What does the cell status feedback include?
The cell status feedback includes two sets of leg cell status signals, representing the operational status of individual cell strings in the bridge, as well as power supply status signals indicating the operational status of the power supply unit.
How is the feedback data processed and stored in the system?
Upon receiving the feedback signals, the system combines them into a single 16-bit value and stores the information in a dedicated cell status register, allowing for easy access and retrieval by the control system.
