The GE IS200TVBAH2A (including the revision IS200TVBAH2ACC) is a specialized modulator board designed for the GE Speedtronic Mark VI control system. This board functions as a critical interface within the control turbine architecture, primarily responsible for signal modulation and processing between the controller and the industrial hardware it manages. It is engineered for high-reliability environments where precise signal conversion is necessary for the stability of power generation equipment.
Technical Specifications and Datasheet
- Model Number: IS200TVBAH2A (Revision: IS200TVBAH2ACC)
- Manufacturer: General Electric (GE)
- Board Type: Modulator / Signal Processing Board
- System Compatibility: Mark VI Speedtronic Control System
- Power Requirement: 24V DC Internal System Power
- Signal Channels: Multiple high-speed modulation channels
- Dimensions: 17.8 cm x 12.7 cm x 3.2 cm
- Weight: 0.58 kg
- Country of Origin: USA
- Operating Humidity: 5% to 95% non-condensing
Application Fields
The IS200TVBAH2A is an essential component in complex heavy-duty industrial systems, specifically:
- Gas Turbine Control: Managing the modulation of fuel valves and airflow actuators for optimized combustion.
- Steam Turbine Regulation: Ensuring stable speed and load control through precise signal processing.
- Combined Cycle Power Plants: Balancing the integrated controls between different turbine stages to maintain grid frequency.
Product Instructions
The IS200TVBAH2A should be installed in the designated VME-style rack of a Mark VI cabinet. Before installation, inspect the board for any physical damage or loose components. Static protection is mandatory; use an anti-static wrist strap when handling the card. Ensure the alignment pins are properly seated before applying pressure to the card edges. Once installed and powered, the board should be configured via the GE ControlST software. Periodic inspection of the connection terminals is recommended to prevent signal attenuation due to oxidation in harsh environments.
Q&A: Frequently Asked Questions
Q: Can the IS200TVBAH2A be used in Mark VIe systems? A: This specific board is primarily designed for the Mark VI “Innovation” series. While some components are cross-compatible, always verify your specific controller’s backplane and software version before attempting a cross-system installation.
Q: What does the “ACC” suffix indicate? A: The suffix typically represents a revision level or a specific conformal coating applied to the board for enhanced environmental protection against dust and moisture.
Q: Does this board require manual calibration? A: Most modulation parameters are handled digitally through the system software; however, field technicians should verify the output signal levels during commissioning to ensure they match the actuator requirements.
Related Industry News
As the global energy sector transitions toward more flexible power generation, the role of reliable modulator boards like the IS200TVBAH2A has gained renewed focus. Recent industry white papers highlight that upgrading legacy Mark VI components with high-revision boards (such as the ACC version) helps in reducing “signal noise” that can interfere with modern digital sensors. Furthermore, as many plants extend the life of their GE turbines, there is a growing secondary market for certified modulator boards to support long-term maintenance strategies without requiring a full system overhaul.
Similar Model Recommendations
- IS200TVBAH1A – Previous revision Modulator Board
- IS200TBAIH1C – Analog Input Termination Board
- IS200VCOHH1A – Control Board
- IS200TRLYH1B – Relay Termination Board
- IS200TTURH1B – Turbine Input Board


