GE IS200EDCFG1BAA EX2100 FEEDBACK DC EXCITER CARD

GE IS200EDCFG1BAA – Exciter DC Feedback Board

General Product Information

Product Overview

The IS200EDCFG1BAA is a revised version of the original IS200EDCFG1 board and is used within the EX2100 series Excitation Control System developed by GE. It functions as an Exciter DC Feedback Board (EDCF), designed to monitor and relay critical feedback signals regarding field voltage and current within the EX2100 drive’s SCR bridge.

This model includes the following revisions:

• Functional Revision 1: B

• Functional Revision 2: A

• Artwork Revision: A

Primary Functions

• Measures field current and voltage for the EX2100 drive system.

• Provides feedback signals to the system through fiber-optic communication.

• Interfaces directly with the EISB board using high-speed fiber-optic connectors.

• Includes onboard diagnostics such as a LED indicator (PSOK), which glows green to indicate normal power supply operation.

Key Hardware Features

• LED Indicator:

• Labeled PSOK

• Indicates power supply status (Green = Normal operation)

• Connectors:

• CFOF – Field Current Feedback Pulse (HFBR-1528 driver)

• VFOF – Voltage Feedback Pulse (HFBR-1528 driver)

• J16 Connector: Accepts a 24 VDC input voltage

• Fiber-Optic Ports:

• Jumpers:

• Supports PPT voltage ranges from 140 V RMS to 1400 V RMS

• 8 Bridge Voltage Scaling Jumpers

• Power Supply Requirements:

• Operates from an external 24 VDC power source via onboard voltage regulators

Construction and Protection

• Manufactured with a normal PCB protective coating, classified under the “G1” group designation.

• Designed for durability and long-term performance in industrial turbine control environments.

Application

The IS200EDCFG1BAA is vital to the reliable functioning of the EX2100 Excitation System, enabling precise control and feedback of excitation parameters in steam, gas, and hydro turbines. It ensures efficient communication with system controllers and protects key feedback pathways, helping maintain system stability and safety.