The GE IS200EGDMH1AGG, also cataloged as the IS200EGDM Ground Detection Module, operates as a dedicated hardware component for field ground fault detection within GE EX2100 Excitation Control System cabinets. The board measures ground leakage paths across main field wirings using a unity-gain differential amplifier and converts differential potential via a Voltage Controlled Oscillator (VCO) A/D converter for fiber-optic transmission to an EISB option board.
Suffix Breakdown & Model Matrix
| Suffix Component | Functional / Hardware Variant Definition |
|---|---|
| IS200 | Standard base circuit board assembly designator |
| EGDM | Exciter Ground Detection Module functional acronym |
| H1 | Conformal PCB coating configuration level 1 |
| AGG | Revision matrix (A: functional revision 1, G: functional revision 2, G: artwork revision) |
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | IS200EGDMH1AGG |
| Brand | GE Industrial Systems |
| Origin | USA |
| Weight | 0.8 kg |
| Dimensions | Double-height, double-slot VME form factor |
| Operating Temp | 0 to 60 deg C |
| Power Consumption | 15 W (Control cabinet supply) |
| System Platform | EX2100 Excitation Control Series |
| Primary Function | Exciter field ground path detection |
| Sensing Hardware | Unity-gain differential amplifier with high CMRR |
| Conversion / Output | Voltage Controlled Oscillator (VCO) A/D converter |
| Interface Port | Fiber-optic transmitter interface to EISB board |
| PCB Protection | Fully enveloped conformal coating |
Deterministic Network Integration and Backplane Processing
The IS200EGDMH1AGG utilizes high backplane bus communication velocity and optical links to stream digitized fault frequency signals directly to control processing racks. Fully integrated firmware flash compatibility permits real-time execution of isolation algorithms across both simplex (1 EGDM board) and Triple Modular Redundant (3 EGDM boards) EX2100 drive configurations. The high common-mode rejection ratio (CMRR) maintains measurement stability during dynamic I/O density scaling inside active excitation cabinets.
Frequently Asked Questions
Q: How does the IS200EGDMH1AGG transmit ground sensing data to the rest of the control system?
A: The board converts analog differential amplifier signals into digital pulses using a Voltage Controlled Oscillator (VCO) A/D converter, which streams data via a fiber-optic transmitter to an EISB option board.
Q: What physical rack space does the IS200EGDMH1AGG require?
A: The card is constructed in a double-height, double-slot VME form factor and mounts within the control power supply module inside the main EX2100 control cabinet.
Q: How many IS200EGDMH1AGG boards are deployed per EX2100 system?
A: Simplex EX2100 system architectures utilize a single IS200EGDMH1AGG board, whereas Triple Modular Redundant (TMR) systems deploy three units.
Field Installation Guidelines
Insert the IS200EGDMH1AGG into its designated double-height, double-slot position in the control power supply chassis, ensuring backplane connectors line up before applying seating pressure. Fasten all front panel retention screws to guarantee proper ground bonding to the rack enclosure. Connect the fiber-optic cable from the front/board transmitter to the EISB board, respecting minimum bend radius limits to prevent signal attenuation. Verify power supply de-energization prior to board installation or removal.
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