GE IS200EACFG3A EX2100 / Mark VI Exciter AC Feedback Board (High-Voltage AC Feedback Module)
GE IS200EACFG3A EX2100 / Mark VI Exciter AC Feedback Board (High-Voltage AC Feedback Module)
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Brand:GE Fanuc PLC Item No.:GE IS200EACFG3A Product Origin:USA Product Dimensions:263 mm × 58 mm × 28 mm Product Weight:0.40 kg Payment:T/T, Western Union, Credit Card Goods_stock:15 Shipping Port:Xiamen, China Lead Time:1-3 Days Condition:Brand New And Original Warranty:1 Year Certificate:COO
The GE IS200EACFG3A is a specialized Exciter AC Feedback Board designed for GE EX2100 Excitation Control Systems and Mark VI turbine control platforms. As a key feedback interface module in these industrial systems, it measures high-voltage AC signals (three-phase voltage and flux/current feedback) from power potential transformers and flux/air-core coils, and conditions these signals for use by the controller logic for accurate voltage regulation and excitation control. The “G3” version represents the most robust variant of the EACF series with a higher voltage input capacity, making it suitable for demanding generator environments.
Technical Specifications
Parameter
Specification
Model
IS200EACFG3A
Module Type
Exciter AC Feedback Board
Series
EX2100 Excitation Control / Mark VI Speedtronic
Voltage Measurement Capacity
Up to ~1300 VRMS three-phase AC inputs (NB: G3 handles higher voltages than G1/G2)
Phase Voltage Test Rings
TP1 (A), TP2 (B), TP3 (C), TP4 (loop reference)
Terminal Blocks
TB1-TB3: phase voltage transformer inputs; TB4: flux/air-core coil connection
Connectors
RS-232 at J504, J509, J514 for EMIO / backplane interfaces
Measured Signals
Line voltages (AB, BC, CA), flux/current feedback signals
Operating Environment
Industrial excitation cabinet, typical 0 °C to +60 °C range
Mounting
Rack or auxiliary cabinet backplane
Dimensions (H × W × D)
263 mm × 58 mm × 28 mm (standard board size)
Weight
~0.40 kg (approx.)
The module is typically installed in the exciter auxiliary cabinet and is connected to the main control backplane via cable links up to ~90 m in length, ensuring flexibility in system layout.
Recommended Related Models
IS200EMIOH1A – Exciter Main I/O Interface Board
IS200ACLEH1A/H1B – Application Control Layer Modules
IS200DSPXH1D – Digital Signal Processor Control Board
These modules combine with the EACF board to form a comprehensive excitation control system, managing feedback signal conditioning, logic processing, and I/O interfacing.
Popular GE Mark VI / EX2100 Modules
IS200DRLYH1B – Relay Output Terminal Board
IS200BICIH1A – Bridge Interface Controller Board
IS200EAHPH1A – High-Power Excitation Driver
IS200EDEX – Exciter De-Excitation Board
IS200EGPA – Exciter Gate Pulse Amplifier
These are commonly found in turbine control cabinets and support the EACF board’s data flow into the control logic.
Applications
The IS200EACFG3A excels in:
High-voltage AC feedback signal acquisition in generator/exciter systems
Pump and turbine excitation control in power plants
Real-time voltage and flux feedback for closed-loop control
Protection and monitoring of generator output
Integration with advanced control systems for stable voltage regulation
Accurate AC feedback is critical for generator excitation regulation and stability in energy production environments.
Advantages
High Input Voltage Capability
The G3 variant supports AC feedback measurement up to ~1300 VRMS — higher than earlier G1/G2 versions — making it suitable for high-voltage generator environments.
Comprehensive Signal Conditioning
Transforms high-voltage three-phase and flux coil signals down to low-level feedback suitable for controller processing.
Flexible Interface Connectivity
Includes RS-232 and terminal block connections with long cable support (up to ~90 m) for flexible installation in large control setups.
Modular Integration
Designed to fit within GE EX2100 and Mark VI excitation cabinets, enabling seamless integration into existing automation infrastructure.
Reliable Industrial Performance
Engineered for continuous operation in industrial environments with rugged signal handling and transformer input isolation.
Technical FAQs
What does the IS200EACFG3A measure?
It measures three-phase AC voltage (via potential transformers) and flux/current feedback signals from exciter systems.
What voltage range is supported?
Up to about 1300 VRMS for AC feedback inputs.
How is the board connected to the control system?
It uses RS-232 connections to the EMIO or backplane interface and terminal blocks for transformer and coil inputs.
Where is it installed?
In the exciter auxiliary cabinet or backplane of the EX2100/Mark VI system.
What are the test points TP1–TP4 used for?
They measure line-to-line voltages in a three-phase system (AB, BC, CA).
Does the module support long cable runs?
Yes — cable lengths up to ~90 m are supported between the board and main controller.
Why is high input voltage support important?
High voltages from generator outputs require robust AC feedback measurement for stable excitation control.
Is this board compatible with Mark VIe systems?
It is compatible with EX2100 and related Mark VI platform control architectures.
What cabinet environment is recommended?
Typical control cabinets with ambient temperatures from 0 °C to ~60 °C.
Can it be repaired or replaced if discontinued?
Yes — surplus and repair options are often available through specialized industrial parts suppliers.
