The General Electric (GE) IS200ERIOH1ACB is a excitation regulator main input/output board for EX2100 excitation systems. As a key component of the EX2100 system, it provides a versatile input/output (I/O) interface to both the system and the customer, ensuring the smooth operation of the excitation control system.

In simplex applications, the IS200ERIOH1ACB is firmly installed on the excitation regulator base plate (ERBP) as an interface hub for the exciter PT/CT terminal board (EPCT) and the exciter Contact terminal board (ECTBG2) for customer I/O signals. In addition, it interfaces with the system I/O signals of the excitation regulator Dynamic Discharge Board (ERDD) and the Excitation Regulator TAB (EROC), contributing to the overall functionality of the simplex excitation control system.

In a redundant configuration, the board is installed not only in the ERBP (M1), but also in the excitation regulator redundancy backplane (ERRB, M2/C). This dual installation ensures redundancy and fault tolerance of the excitation control system. The circuit board in the redundant configuration connects the exciter PT/CT terminal board and the exciter contact terminal board to the customer I/O signals while processing the system I/O signals of the ERDD, EROC, and exciter regulator redundant relay board (ERRR).

The IS200ERIOH1ACB board plays an important role in facilitating the exchange of information between the customer and the system I/O signals. It includes critical communication paths for dynamic discharge within the driver, option management, and redundant relay functions. In addition, the board’s versatility plays an important role in facilitating effective communication and integration within the EX2100 regulator control system, significantly enhancing the reliability, safety and overall performance of the excitation control system.

The IS200ERIOH1ACB board also features indicator leds, including power leds, normal operation leds and active leds, providing operators with intuitive operating status and troubleshooting tips. The product, which is made in the United States and operates in a temperature range of 0 to 60 degrees Celsius, is currently available in stock.

In summary, the IS200ERIOH1ACB is an integral part of the GE Mark VI system, providing powerful hardware support for gas/steam turbine monitoring and regulation.