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3 year warranty

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Exciter Attenuator Module IS200EXAMG1A is a bridge protection board in the EX2100 series. It is used to apply low frequencies to sense resistors. The board is also used to drive the electrical center of the field winding.



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  • Part Number: IS200EXAMG1A
  • Manufacturer: GE Industrial Systems
  • Series: EX2100 Excitation Control

IS200EXAMG1A Technical Specifications

Alphanumeric Catalog Number IS200EXAMG1A
Board Description Exciter Attenuator Module
Board Type Bridge and Protection Module
Functional Acronym/Abbreviation EXAM
Jumper Positions JP1, JP2, and JP3
Manual(s) GEI-100509 and GEH-6632
Series EX2100 Excitation Controller
Weight Approximately 1.15 lbs

Product Description

Part number IS200EXAMG1A is an Exciter Attenuator Module. This module is used as a bridge protection board and will typically drive the electrical center for the field winding with low-frequency AC voltage that will be relative to the ground. The EXAM modules work together with the EGDM to detect field ground leakage currents. Typically the EXAM module is used to detect the leakages and then they are measured by the EGDM module. The typical location for this module will be in the auxiliary cabinet. 

The IS200EXAMG1A module contains a sense resistor that is connected to a resistor network across the field. There are two female connectors on the board, there is a three-position plug as well as a nine-position cable connector. The cable connector will be labeled as the ground detector. Along with the female connectors, there is a single-screw connection that allows for surface wiring connections, two stab-on connectors which are labeled as Vbus-p (E1) and Vbus-n (E2), and three jumpers. 

The IS200EXAMG1A can be used in conjunction with redundant systems, and the test signal needed will be sent through either the M1 or M2 connectors. This model has a switch that switches between the M1 and M2 controllers.

Frequently Asked Questions about IS200EXAMG1A

What is the mounting location of the IS200EXAMG1A model?

The IS200EXAMG1A model will be mounted in the Auxiliary Cabinet. 

How is the IS200EXAMG1A board used in a redundant system?

In a redundant style system, the IS200EXAMG1A's signal will come from either the M1 or M2 section of the backplane. 

How are the signals between the EXAM and EGDM modules sent to each other?

The control and sense signals of the EXAM and EGDM modules are sent to each other through a single cable. 

Where are the resulting currents from the EXAM sent to?

The resulting currents generated by the voltages of the EXAM model are sent back to the EGDM model. 

Reviews For IS200EXAMG1A

Internal Review

The IS200EXAMG1A model is the first of the EXAM models, this model does not have some of the features that the IS200EXAMG1B model has such as Alterrex applications. - AX Control Tech Team

Repair Services For IS200EXAMG1A

Type Lead Time Price Action
Repair Service 1-2 weeks $940

Our highly skilled technicians can repair your IS200EXAMG1A. 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
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All Motors: 1 Year
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