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The GE IS200DTAIH1A Terminal Board is a Simplex DIN-rail Mounted Analog Input/Output Terminal Board used in the GE Speedtronic Mark VI Turbine Control System.
Its primary function is to serve as the field-wiring interface for analog signals, connecting external sensors (transmitters) to the main control system’s processor board.
⚙️ Key Functions and Features
The IS200DTAIH1A is a compact and streamlined terminal board designed to manage analog signals for monitoring and control:
- System Application: Used in the Simplex (non-redundant) configuration of the GE Mark VI system.
- Analog I/O Count: The board typically supports:
- 10 Analog Inputs (AI): Used to receive signals from various field instruments like pressure, temperature, or flow transmitters.
- 2 Analog Outputs (AO): Used to send control signals back out to field devices (e.g., control valve positioners).
- Input Compatibility: The 10 analog inputs are highly versatile, accommodating two-wire, three-wire, four-wire, or externally powered transmitters.
- Output Configuration: The two analog outputs are typically set to a 0-20 mA range, with one of the outputs configurable via an on-board jumper to a higher 0-200 mA current for specific applications.
- Processor Interface: It connects to the main Analog I/O processor board, usually the VAIC VME Analog Input Control Board, via a single cable (similar to the larger TBAI board cable).
- Mounting: It is designed for DIN-rail mounting using Euro-Block terminal blocks for easy and secure field wiring connections.
- System Expansion: Two DTAI boards can be connected to a single VAIC processor card, allowing for a total of 20 analog inputs and 4 analog outputs.
The board is essential for accurately monitoring and controlling various process parameters in critical industrial applications like gas and steam turbine control.
