Features:
- Fans generator-field feedback across the EX2100e control arrangement.
- Converts bridge current and voltage into separate frequency signals.
- Uses optical transfer between the high-voltage interface and auxiliary controller electronics.
The fanned-feedback design lets one set of bridge measurements reach the required control sections without conductive signal sharing.
Current information begins at the dc-field shunt, whereas voltage uses an independently scaled bridge-output path.
Range selection occurs before conversion, so selector position and fiber destination are both part of the installed configuration.
For the General Electric IS200EDFFH1A DC Fanned Feedback Board, Apter Power can provide quotation assistance and access to official manufacturer documentation.
General Electric IS200EDFFH1A DC Fanned Feedback Board Manuals, Datasheets, Links
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
Separating current and voltage acquisition
- Current source: A shunt in the dc field circuit supplies the current-related measurement.
- Voltage source: The second path samples regulator or exciter output at the SCR bridge.
- Independent channels: Each analog quantity has its own voltage-to-frequency converter.
- Common consequence: Loss of board power can remove both measurements at once.
Preserving isolated signal destinations
- Optical boundary: Fiber keeps bridge potential outside the controller electronics.
- Fanned paths: Converted feedback is distributed to the applicable control sections.
- Channel labels: Each transmitter and receiver pair must retain its original designation.
- Clean connections: Contaminated or sharply bent fiber can weaken one path without affecting the others.
Matching conversion to the bridge
- Eight settings: Voltage attenuation can be selected for different bridge applications.
- Headroom: The chosen range must keep normal operation inside the converter span.
- Replacement setup: Selector positions should be recorded before the removed board is handled.
- Signal comparison: Unexpected frequency at a known bridge voltage is a useful scaling check.
Checking the board before signal troubleshooting
- DC distribution: The EX2100e arrangement supplies 28 V dc control power to the feedback hardware.
- Common loss: Missing power explains simultaneous current and voltage channel failure.
- Connector review: Power and fiber plugs should be inspected without disturbing the high-voltage wiring.
- Return to service: Stable inputs and consistent fanned outputs should be demonstrated together.