GE IS200ECTBG1A Mark VI Control Module

GE IS200ECTBG1A is an exciter contact terminal board (ECTB) in the GE EX2100 excitation controller series. It is part of the Mark VI control module and is mainly used to support excitation contact inputs and outputs. It is suitable for excitation regulation systems of power generation equipment such as steam turbines, gas turbines, and hydro turbines.
Core Function
Contact Input/Output Support
Supports excitation contact input and output, with the ability to control relay contact output and user contact input.
There are 4 general C-type contact outputs on the board, controlled by the EMIO board; 6 auxiliary contact inputs, powered by the ECTB board at 70 VDC.
Redundant Mode Operation
Marked as 1A, it indicates that it only supports redundant mode operation and needs to be used in conjunction with other modules to enhance system reliability.
Signal Isolation and Power Supply
Provides 70V isolated DC voltage during power supply to ensure signal stability.
There are 3 pin connectors (J405, J408, J415) on the board for external connection.

Technical Specifications
Type: Exciter Contact Terminal Board (ECTB)
System: EX2100 Excitation Controller Series (Mark VI Control Module)
Operation Mode: Redundant Mode (1A Mark)
Contact Outputs: 4 General C-Type Contacts (Controlled by EMIO)
Contact Inputs: 6 Auxiliary Contacts (Powered by 70 VDC)
Interfaces: 3 Pin Connectors (J405, J408, J415)
Isolation Voltage: 70V DC (Power Supply Isolation)
Application Scenarios: Excitation Regulation for Power Generation Equipment such as Turbines, Gas Turbines, and Hydro Turbines.

Application scenario
Excitation control of power generation equipment
As the core component of the EX2100 excitation system, it is used to regulate the excitation current of the generator and maintain voltage stability.
It supports redundant configuration to ensure that the excitation system can still operate normally in the event of a single-point failure.
Industrial automation and energy management
Suitable for scenarios that require high-reliability excitation control, such as combined cycle power plants, hydropower stations, etc.
It realizes联动 control with external devices (such as circuit breakers， protection devices) through contact input/output.