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The GE part number IS200DTBDG2A is a Terminal Board used in GE’s Mark VIe Speedtronic turbine control systems. Its primary function is to serve as a wiring interface for a variety of signals, including millivolt (MMV), current inputs (CI), and contact inputs (IT), providing a clean and organized connection point to the main processor board. 🔌
Function and Key Features
A terminal board like this simplifies the complex task of wiring numerous sensors in a power plant. The “DTBD” in the name stands for Din-rail Terminal Board.
- Wiring Interface: The board provides screw terminals where technicians can connect field wiring from a variety of sensors. This eliminates the need to wire directly to the control card itself, making installation and maintenance much easier.
- MMV, CI, and IT Support: The board is designed to support a wide range of analog and digital signals.
- MMV (Millivolt): For low-level analog inputs, such as those from thermocouples.
- CI (Current Input): For analog inputs from devices that use a current loop, such as pressure or flow transmitters.
- IT (Input Terminal): For digital on/off signals from switches or relay contacts.
- 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 DTBD board plugs directly into the main Mark VIe 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’s built to withstand the harsh conditions of a power plant.
Applications
The IS200DTBDG2A is used in power generation facilities that operate GE’s Mark VIe turbine control systems. It is an essential component for:
- I/O Management: It simplifies the wiring and management of the large number of mixed-signal inputs 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.
