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The GE DS200TBQCG1B is an Analog Input Termination Module designed for the General Electric Mark V Speedtronic Turbine Control System.1 It is essentially the field-wiring interface board (an RST Analog Termination Board) that connects the turbine’s analog sensors and actuators to the main processing circuit board.
This module is used in the control and management systems of gas, steam, and wind turbines.
Key Functions
The primary role of the DS200TBQCG1B is to terminate and route critical low-level analog signals within the Triple Modular Redundant (TMR) cores of the Mark V system:
| I/O Type | Function | Description |
| Analog Inputs (mA) | Field Sensor Interface | Terminates current-loop signals, typically 4-20 mA, from various process sensors (pressure, flow, etc.) for signal conditioning before being sent to the controller. |
| LVDT/R Inputs | Position Measurement | Terminates signals from LVDT (Linear Variable Differential Transformer) or LVDT/R sensors, which provide feedback on the precise position of turbine control valves and actuators. |
| Analog Outputs (mA) | Control/Monitoring | Provides termination for analog output signals from the controller, used to drive remote indicators, recorders, or auxiliary devices. |
Technical Details
- System Series: GE Mark V Speedtronic Turbine Control System.
- Location: Typically found in position 9 of the R1, R2, and R3 control cores of the Mark V cabinet.
- Main Connection: The board interfaces directly with the main analog acquisition board, the TCQA (Turbine Control, Qualification, and Acquisition) board, in its respective core via internal connectors.
- Output Configuration: The milliamp output range (typically two channels) can be configured using onboard hardware jumpers to select a maximum current output of either 20 mA or 200 mA.
- Part Numbering: The ‘TBQC’ portion of the part number stands for Termination Board for Quick Connect, and the G1B suffix denotes the specific version or revision of the hardware.
