I/O modules

Core Temperature Signal Interface for Mark VI

The GE IS200STTCH2AAA is a thermocouple input terminal board for the Mark VI Turbine Control System. This module provides a dedicated interface for connecting thermocouple sensors directly to the control rack. It conditions low-level millivolt signals from temperature sensors for processing by the main controller. Consequently, it enables precise exhaust temperature monitoring and turbine protection logic.

Cold Junction Compensation and Signal Filtering

This terminal board includes integrated cold junction compensation for accurate thermocouple measurements across varying ambient temperatures. It filters electrical noise from sensor signals to ensure stable and reliable temperature readings. The IS200STTCH2AAA features clearly labeled screw terminals for secure field wiring connections. Furthermore, its design provides high-impedance inputs to minimize measurement errors from sensor lead resistance.

Technical Specifications and Hardware Details

Engineers designed this board for direct mounting in GE control cabinet termination bays or on DIN rails. Its specifications define supported thermocouple types, channel count, and accuracy ratings. The following table details its primary functional and identification parameters.

Application in Temperature Critical Turbine Sections

Plant operators use this board to monitor critical temperature points such as turbine exhaust gas paths and bearing surfaces. It provides the raw data for performance calculations and overtemperature protection algorithms. The GE IS200STTCH2AAA is essential for safe and efficient turbine operation under varying load conditions. Therefore, maintaining functional terminal boards is crucial for reliable plant performance.

Details