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The GE part number IS200CTBAH2A is a Terminal Board. It is a component of GE’s Mark VI Speedtronic turbine control system. Its primary function is to serve as an interface between the control system’s electronics and the field wiring for various signals, particularly for the MMV and AIO modules. 🔌
Function and Features
A terminal board is essentially a wiring hub that simplifies the connection of sensors and actuators to a control board. The “CTBA” designation stands for Card Terminal Board Assy.
- Wiring Interface: The board provides screw terminals or other connection points where technicians can connect field wiring from sensors (like those for vibration or temperature) and actuators. This eliminates the need to wire directly to the control card itself, making installation and maintenance much easier.
- MMV and AIO Support: The board is designed to support the MMV (Millivolt) and AIO (Analog Input/Output) modules. This means it has dedicated connections for the low-level signals from millivolt sensors (e.g., thermocouples) and for the various analog input and output signals used in the system.
- Fixed: The “Fixed” designation means that the terminal block is permanently wired to the main board. This is in contrast to a removable terminal board, which can be unplugged. The fixed design is less convenient for maintenance but may be used for increased connection reliability in certain applications.
- System Integration: The CTBA board plugs directly into the main Mark VI control board, providing a clean and organized way to manage all the field I/O connections.
- Robust Design: Like all GE industrial control components, it is built to withstand the harsh conditions of a power plant.
Applications
The IS200CTBAH2A is used in power generation facilities that operate GE’s Mark VI turbine control systems. It is an essential component for:
- I/O Management: It simplifies the wiring and management of the large number of analog and millivolt signals used for turbine control and protection.
- Reliability: The fixed design may be chosen for applications where the cost of a removable connector is not justified and a highly secure connection is desired.
