Description
The GE IS200EDCFG1A is an Exciter DC Feedback Board designed for GE EX2100 Excitation Control Systems. It is a key feedback interface board used to measure field voltage and field current at the SCR bridge of generator excitation systems. The collected feedback signals are transmitted to the excitation controller through a high-speed fiber-optic communication link, providing electrical isolation and improved noise immunity.
The IS200EDCFG1A monitors critical DC excitation parameters through field voltage and current feedback circuits. It works together with the EISB board inside the EX2100 control cabinet, supporting stable generator voltage regulation and excitation performance in power generation applications.
This board is commonly used in GE turbine generator excitation systems, including applications in gas turbines, steam turbines, and large synchronous generators where reliable excitation feedback measurement is required.
🔹 Product Parameters Datasheet
| Parameter | Specification |
|---|---|
| Brand | GE (General Electric) |
| Model | IS200EDCFG1A |
| Series | EX2100 Excitation Control System |
| Product Name | Exciter DC Feedback Board |
| Origin / Place of Origin | USA |
| Product Status | New Surplus / Original New / Refurbished Spare |
| Dimensions | Approx. 170 mm × 120 mm × 30 mm |
| Weight | Approx. 0.5–0.85 kg |
| Power Requirement | External 24 VDC Supply |
| Discontinued Status | Legacy Product, Available as Replacement Spare |
🔹 Technical Features
🔸 Designed for GE EX2100 excitation control platforms
🔸 Measures SCR bridge field voltage feedback
🔸 Measures field current feedback through DC shunt circuits
🔸 Provides high-speed fiber optic communication with EISB board
🔸 Fiber optic interface provides voltage isolation and high noise immunity
🔸 Supports generator excitation regulation and monitoring
🔸 Includes PSOK power status LED indicator
🔸 Suitable for industrial turbine and generator control environments
🔸 Designed for continuous-duty power generation applications
🔹 Common Questions & Answers
Q: What is the main function of IS200EDCFG1A?
A: The IS200EDCFG1A measures DC field voltage and field current feedback signals from the SCR bridge and sends the data to the EX2100 excitation controller.
Q: Which GE system uses IS200EDCFG1A?
A: It is mainly used in GE EX2100 Excitation Control Systems for generator excitation applications.
Q: What is the purpose of the fiber optic connection?
A: The fiber optic link transfers feedback signals between the EDCF board and EISB board while providing electrical isolation and protection against electrical noise.
Q: What power supply does this board require?
A: The board requires an external 24 VDC supply input for operation.
Q: What should be checked before replacing this board?
A: Verify the exact part number, EX2100 system configuration, fiber optic connections, DC feedback wiring, power supply condition, and existing excitation parameters before installation.
🔹 Recommended GE Models
- IS200EISBH1A – EX2100 Exciter Interface Board
- IS200ECTBG1A – EX2100 Exciter Terminal Board
- IS200EDEXG1A – EX2100 De-Excitation Board
- IS200EGPAG1A – EX2100 Gate Pulse Amplifier Board
- IS200DSPXH1D – EX2100 Drive DSP Control Board
- IS200EBKPG1A – EX2100 Exciter Control Backplane Board
- IS200DSFCG1A – Exciter Shunt Feedback Board
- IS200ACLEH1A – Mark VIe/EX2100 Communication Interface Board
- IS220PPROH1A – Mark VIe Protection I/O Pack Module
- IS220PDIOH1A – Mark VIe Digital I/O Pack Module
- IS220PAICH1A – Mark VIe Analog Input I/O Pack Module
- IS220PTURH1A – Mark VIe Turbine Control I/O Pack Module
- IS420UCSBH4A – Mark VIe Controller Module
- IS420UCSCH2A – Mark VIe Controller Module
- IS200BPPBH2C – GE Mark VI Processor Board



