Product Overview

The GE DS200TCCAG1BAA is a specialized TC2000 Common Analog I/O Board (TCCA) designed for the GE Speedtronic Mark V Gas Turbine Control System. Operating within the R5 core, this board serves as the central processing hub for critical analog signals, including 4–20 mA inputs/outputs, RTD sensor data, and thermocouple readings. It scales and conditions raw signals from various terminal boards (CTBA, TBQA, and TBCA) and converts them into high-precision digital data for the system's I/O engine. We supply this board as 100% Brand New, ensuring factory-sealed reliability for mission-critical turbine protection and process control.

Technical Specifications

The DS200TCCAG1BAA features a sophisticated architecture centered around an Intel 80196 microprocessor and removable PROM modules.

Engineering Advantages

• High-Precision Signal Conditioning: The board utilizes burden resistors to drop transducer current into readable voltage, paired with 12-bit resolution. This ensures the turbine controller receives highly accurate data for flow rate, pressure, and temperature monitoring.

• Comprehensive Sensor Support: The TCCA board provides dedicated excitation circuitry for RTDs and processes thermocouple signals with integrated cold-junction compensation (via the TBQA board). This versatility allows it to manage the full thermal profile of the turbine assembly.

• Advanced Shaft Monitoring: It includes specialized inputs for monitoring turbine shaft voltage and current. This is a critical protection feature used to detect grounding issues or bearing current leakage before they cause mechanical failure.

• Firmware Portability: The board features socketed, removable PROM modules. When replacing an older board, technicians can swap the original PROMs onto the new DS200TCCAG1BAA to ensure the instructions and firmware code remain identical to the site-specific configuration.

FAQs

• Can I use this board to replace a basic DS200TCCAG1? Yes. The DS200TCCAG1BAA is a fully revised version (B-A-A revision levels) of the parent TCCAG1 board. It incorporates iterative hardware and artwork improvements for better noise immunity and thermal stability.

• How are the RTD types (e.g., PT100) selected? RTD types and curves are not set via physical jumpers; they are defined using I/O configuration constants within the HMI's I/O Configuration Editor.

• What are the on-board jumpers (J1, JP2, JP3) for? J1 enables/disables the serial RS232 port for maintenance. JP2 and JP3 are strictly for factory testing and card oscillation diagnostics; they should remain in their default positions during normal turbine operation.

• Does this board communicate directly with the HMI? The TCCA communicates with the I/O Engine via the 3PL connector, which then routes data to the Common Data Processor and onto the operator interface.