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- GE
- IS200EDCFG1A
- Exciter DC Feedback Board
- USA
- 122 mm × 82 mm × 60 mm
- 0.54kg
- Xiamen, China
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1. Product Introduction, Brand & Series
Brand: GE Fanuc (General Electric)
Series / Platform: IS200 / Mark VI / Mark VIe / EX2100 Excitation / Turbine Control Systems
The IS200EDCFG1A is an Exciter Direct Current Feedback (EDCF) board / analog feedback module used in excitation control systems. Its role is to measure the field current and field voltage in the SCR bridge (or equivalent exciter power stage), providing essential feedback for excitation control algorithms. It is a precision analog‑feedback module, often mounted in excitation racks, and works in coordination with control boards and field sensors. It is intended for use in demanding industrial environments, power plants, turbines, where stability, accuracy, and reliability are critical.
2. Technical Specifications
Below are the representative technical parameters for IS200EDCFG1A, including dimensions and weight.
| Parameter | Specification |
|---|---|
| Model | IS200EDCFG1A |
| Function | Exciter DC Feedback Board (measures field current & field voltage feedback) |
| System Compatibility | IS200 / Mark VI / EX2100 excitation control platforms |
| Supply Voltage | ±24 V DC or external 24 VDC supply (depending on rack design) |
| Feedback Inputs | Two feedback channels: field voltage and field current (analog) |
| Signal Type | Analog feedback via precision circuitry; some isolation components included |
| Environmental Temperature | Approximately −20 °C to +50 °C (some sources cite −40 °C to +70 °C under different conditions) |
| Dimensions | Approx. 122 mm × 82 mm × 60 mm |
| Weight | Approx. 1.20 lbs (≈ 0.54 kg) |
| Mounting / Connectors | Rack‑mount board; connectors to SCR bridge feedback; analog front‑end filtering; sometimes fiber‑optic feedback in some variants |
| Protection Features | Precision analog components; designed for electrical noise suppression; temperature drift control; reliability under SCR bridge high‑stress environments |
| Compliance / Standards | Industrial excitation system feedback accuracy; designed to match Mark VI / EX2100 system standards; typical industrial robustness |
3. Applications
Some of the main applications for the IS200EDCFG1A:
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In turbine generator excitation systems, particularly in power plants, to measure real‑time field voltage and field current, providing feedback to the excitation control loop.
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To ensure stable excitation output, especially under varying load and transient conditions.
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For maintaining generator stability, avoiding over‑excitation or under‑excitation, and protecting field winding and SCR components.
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As part of retrofits or maintenance of legacy Mark VI / EX2100 excitation control cabinets.
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Environments with electrical noise (SCR switching, high voltage), requiring robust analog feedback and filtering.
4. Advantages / Key Features
Here are key advantages of the IS200EDCFG1A module:
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Precise Feedback: Accurate measurement of field current and voltage, essential for stable excitation control.
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Analog Front‑End Designed for Noise Suppression: Built‑in filtering and protection make it more immune to interference from switching devices.
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Robust Construction: Designed to withstand temperature variation, vibrations, and industrial environment stress.
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Compatibility with Existing Systems: Fits into Mark VI / EX2100 excitation racks; facilitates maintenance / replacement without full system redesign.
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Reliable Performance: With attention to precision, component quality, and analog stability.
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Moderate Size & Weight: Roughly 122 × 82 × 60 mm; ~0.54 kg, manageable for mounting and handling.
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Multiple Feedback Channels: Supports both voltage and current feedback, giving more information to control loop.
5. Related / Similar Models & Popular Models from Same Brand
Here are tables with similar models (within IS200 / excitation feedback or analog boards) and other popular modules from GE / GE Fanuc in similar systems.
5.1 Similar / Related Models (Same Series / Function)
| Model | Key Specifications / Role |
|---|---|
| IS200EDCFG1A | Exciter DC Feedback board; field voltage & current feedback; ~0.54 kg; ~122×82×60 mm |
| IS200EDCFG1B | Possibly a variation / newer revision with improved accuracy or different temperature rating |
| IS200WEMAH1BA | Analog input board for measuring temperature, pressure or other process signals in Mark VI systems |
| IS200VAICH1A | Voltage/current analog input board, for general analog monitoring in control systems |
| IS200TDBSH2A | Hybrid analog/digital I/O board, including analog feedback and possibly output tasks |
5.2 Other Popular GE / Mark VI / IS200 Modules
| Model | Function / Key Features |
|---|---|
| IS200ECTBG2A | Contact / terminal board for excitation contactors; relay / contact signal interface |
| IS200DSPXH2 | Digital signal processing board for high‑speed control tasks |
| IS200WEMAH1BA | Analog input board with high precision for temperature / pressure sensors |
| IS200STAIH1A | High density analog input board, support for RTD / thermocouple / analog signals |
| IS200TREGH1B | Trip/emergency control board for turbine / generator shutdown protection |
6. FAQ — 10 Questions & Answers
Here are frequently asked questions (Q) and corresponding answers (A) about the IS200EDCFG1A:
Q1: What is the weight of this module?
A1: Approximately 0.54 kg (1.20 lbs) including connectors / board assembly.
Q2: What are the physical dimensions?
A2: About 122 mm × 82 mm × 60 mm.
Q3: What feedback does it provide?
A3: It measures both field voltage and field current of the exciter feedback loop.
Q4: What voltage does it require to operate?
A4: Uses 24 V DC or ±24 V in some variants, depending on system configuration.
Q5: For what types of control systems is this board intended?
A5: Designed for FDB (feedback) role in Mark VI, EX2100 or equivalent excitation control systems.
Q6: What is the operating temperature range?
A6: Typical range is about −20°C to +50 °C, some sources note usage up to +70 °C under controlled conditions.
Q7: How does it handle electrical noise or interference?
A7: It includes analog front‑end filtering and shielding / protection components to reduce noise effects, especially near SCR bridges.
Q8: How is compatibility with SCR bridge and external sensors achieved?
A8: Through carefully designed analog input circuits, correct scaling, possibly via fiber‑optic or shielded signal paths in some system designs.
Q9: Is this board backward compatible with older versions?
A9: Typically yes, with caution on connector placement and feedback signal scaling; newer revisions may differ in analog tolerances.
Q10: What maintenance or calibration is required?
A10: Periodic checking of analog calibration, verifying that field voltage/current sensors are properly connected, and that thermal drift and noise do not degrade accuracy.
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