SPECIFICATIONS
Part Number: IS200TBCIH2CCD
Manufacturer: General Electric
Country of Manufacture: United States (USA)
Number of channels: 24
Size: 33.02 cm high x 10.16 cm wide
Temperature Operating: -30 to 65 o C
Series: Mark VI
Function: contact input terminal board
Functional Description
IS200TBCIH2CCD is a contact input terminal board developed by GE. It is part of the GE Speedtronic Mark VI gas turbine control system. The contact input terminal board (TBCI) serves as a pivotal component within the control system architecture, facilitating the integration of dry contact inputs into the system. Designed to offer robust functionality and reliability, the TBCI incorporates advanced features to ensure seamless operation and protection.
Features
- Input Configuration: Accepts 24 dry contact inputs, which are wired to two barrier-type terminal blocks. These inputs are essential for capturing signals from external devices or sensors, providing critical data for system operation and monitoring. Additionally, dc power is supplied to the TBCI for contact excitation, enabling the proper functioning of the contact inputs.
- Noise Suppression Circuitry: To safeguard against surge and high-frequency noise, the contact inputs feature noise suppression circuitry. This advanced circuitry helps prevent electrical disturbances from affecting the accuracy and reliability of input signals, ensuring consistent performance even in challenging operating environments.
- Power Requirements: The contact inputs operate on a nominal 24 V dc voltage, with a floating range from 16 to 32 V dc. This voltage range allows for compatibility with various power sources and ensures flexibility in system deployment.
- Terminal Blocks and Wiring: The 24 dry contact inputs are directly wired to two I/O terminal blocks mounted on the TBCI. These terminal blocks are securely held down with two screws and can be easily unplugged from the board for maintenance or replacement. Each terminal block features 24 terminals capable of accepting up to #12 AWG wires, providing ample flexibility for wiring configurations.
- Shield Terminal Strip: Adjacent to each terminal block, a shield terminal strip is attached to chassis ground. This grounding mechanism helps mitigate the risk of electromagnetic interference (EMI) and ensures the integrity of input signals by providing a reliable ground reference point.
- With its comprehensive features and robust design, the contact input terminal board plays a critical role in facilitating seamless integration of dry contact inputs within the control system, enhancing reliability and performance in industrial applications.
Cabling Connections
The cabling connections for the control system play a crucial role in ensuring seamless integration and reliable operation within the Mark VI or Mark VIe system architecture. Depending on the system configuration and redundancy requirements, specific connectors and cabling arrangements are utilized to facilitate efficient data exchange and system communication.
- Simplex System Configuration: In a simplex system configuration, connector JR1 is utilized for cabling connections. This connector serves as the primary interface point for connecting cables or I/O packs within the control system. The simplex configuration is typically employed in systems where redundancy is not required, offering a straightforward and streamlined cabling solution.
- TMR System Configuration: For a Triple Modular Redundancy (TMR) system configuration, all three connectors—JR1, JS1, and JT1—are utilized. This comprehensive cabling arrangement is essential for implementing redundancy and ensuring high levels of system reliability. By utilizing multiple connectors, the TMR system configuration provides redundancy at various levels, minimizing the risk of system failures and enhancing overall system resilience.
- Flexibility in Cabling Arrangements: The choice of cables or I/O packs to be plugged into the connectors depends on the specific type of Mark VI or Mark VIe system being deployed, as well as the desired level of redundancy. This flexibility allows system integrators and operators to tailor the cabling connections to meet the unique requirements of their application, ensuring optimal performance and efficiency.
Fault Detection
- Loss of Contact Input Excitation Voltage: One critical fault scenario monitored by the system is the loss of contact input excitation voltage. In this scenario, the system continuously monitors the voltage supply to the contact inputs. If the excitation voltage drops below the specified threshold or is interrupted, indicating a loss of power supply, the system triggers an alarm to alert operators. Prompt detection of this fault allows for timely intervention to restore power supply and prevent loss of functionality.
- Non-Responding Contact Input in Test Mode: Another fault scenario monitored by the system is the non-responding contact input in test mode. During system testing or diagnostic procedures, each contact input is tested to ensure responsiveness and functionality. If a contact input fails to respond or provide the expected output signal during testing, indicating a potential malfunction or connectivity issue, the system logs this event and alerts operators. This proactive fault detection mechanism enables operators to identify and address issues before they escalate, ensuring the reliability and accuracy of system data.
- Unplugged Cable: The system also monitors the status of cabling connections, including unplugged cables. If a cable connected to a contact input or other system component becomes unplugged or disconnected, the system detects this event and generates an alert. This fault detection mechanism helps prevent data loss or communication errors caused by disconnected cables, enabling operators to promptly re-establish connections and restore system functionality.
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FREQUENTLY ASKED QUESTIONS
What is IS200TBCIH2CCD?
It is a contact input terminal board and is part of the GE Speedtronic Mark VI gas turbine control system.
What is the purpose of the input filter?
The input filter is designed to enhance the reliability and accuracy of input signals by filtering out noise and electrical disturbances, ensuring consistent and stable operation of the control system.
What type of filter does the input filter utilize?
The input filter incorporates hardware filtering, with a filter response time of 4 milliseconds. This hardware-based filtering mechanism effectively suppresses noise and interference, providing clean and reliable input signals to the control system.
How much power does the board consume?
It consumes approximately 20.6 watts of power when installed on the terminal board. This power consumption is within the specified limits and ensures efficient operation without excessive energy usage.
What is the temperature rating?
The component operate within a temperature range of 0 to 60 degrees Celsius. This temperature rating ensures that the filter can withstand a wide range of environmental conditions, making it suitable for use in various industrial applications.
