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IS200EACFG1B Image One
3 year warranty

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Part IS200EACFG1B is an Exciter AC Feedback Board produced by GE from the EX2100 series which measures the exciter potential power transformer AC supply voltage and current. This model is equipped with three 9-pin sub-D connectors and is located in an exciter auxiliary cabinet.



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  • Part Number: IS200EACFG1B
  • Manufacturer: GE Industrial Systems
  • Series: EX2100 Excitation Control

IS200EACFG1B Technical Specifications

Alphanumeric Catalog Number IS200EACFG1B
Board Level Base-Level
DB9 Connectors 3
Group Variation G1, Normal Coating
Manufacturer General Electric
Pin Connectors 3; J504, J409, and J514
Series EX2100 - Innovation Series

Product Description

The IS200EACFG1B model is an exciter alternating current feedback board, which controls the incoming potential power transformer (PPT) voltages as well as air core current transformer signals. The currents that go through the EACF board are sent to three DB9 connectors which are the cable to controllers connected to M1, M2, and C. The cable shield terminal screws that are needed to attach the exciter feedback board are located on the frame within three inches of the other input screws. 

There are also two terminals located on the board which are used for two flux/air core coils. The IS200EACFG1B model is used with an exciter backplane board (EBKP), which is the controller between the two boards. There are no LED indicators or displays on this controller which is why the IS200EACFG1B must be connected to an EBKP model such as the IS200EBKPG1B model. 

Frequently Asked Questions about IS200EACFG1B

What are the voltage test rings on the IS200EACFG1B board used for?

The voltage rings are used to measure the phase voltage output from potential transformers they do so as follows: between TP4 and TP1, obtain phase-to-phase voltage CA, between TP1 and TP2 obtain phase-to-phase voltage AB, and between TP3 and TP4 obtain phase-to-phase voltage BC.

Does the IS200EACFG1B have a different functional revision than the IS200EACFG1A model?

Other than the functional revision letters being different there appear to be no differences between this model and its predecessor. The GEI-100465A Exciter AC Feedback Board User's Guide provides more information on the IS200EACF boards. 

What type of board is the IS200EACFG1B model?

The IS200EACFG1B board is an Input-Output Terminal Board and will handle all bridge AC voltages and current feedback. 

How are the different voltages and circuits fanned out on the IS200EACFG1B board?

The different voltages and circuits accepted by the IS200EACFG1B board are fanned out to three DB9 connectors for cables to controllers M2, M1, and C. 

Reviews For IS200EACFG1B

Internal Review

The IS200EACFG1B module is readily available and is an easy module to replace. Iit is also equipped with two transformers that have the capability to measure incoming three-phase voltage measurements. - AX Control Tech Team

Repair Services For IS200EACFG1B

Type Lead Time Price Action
Repair Service 1-2 weeks $1155

Our highly skilled technicians can repair your IS200EACFG1B. All of our repairs come with a 3 Year AX Control Warranty. Please contact us for additional information about our repair process. To receive the repair pricing and lead time listed above please process your repair order via our website. The following repair options may be available upon request:

  • 48-72hr Rush Repair
  • Detailed Repair Reports
  • AX Control Certificate of Warranty

AX Control Warranty Info

All products we sell are backed by our unparalleled warranty. A warranty certificate will be provided with your order upon request.
All PLCs, HMIs, and Turbine Control Boards: 3 Years
All AC/DC and Servo Drives: 2 Years
All Motors: 1 Year
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