Description
🔧 Product Description
The GE General Electric IS200EAUXH1A, also identified as IS200EAUXH1AAA, is an Exciter Auxiliary I/O Interface Board used in the GE EX2100e Excitation Control System. The EAUX board provides auxiliary interface and signal-conditioning functions between the excitation control architecture and associated field devices and control modules. It supports functions including de-excitation and crowbar status, field voltage and current feedback, contactor interfaces, field-ground detection, and bridge AC input feedback. The H1A configuration is associated with a TMR architecture and interfaces with the M1, M2, and C control sections.
⚙️ Product Datasheet
| Parameter | Specification |
|---|---|
| Brand | GE General Electric |
| Model | IS200EAUXH1A / IS200EAUXH1AAA |
| Series | EX2100e Excitation Control / Mark VI IS200 |
| Product Name | Exciter Auxiliary I/O Interface Board |
| Place of Manufacture | USA |
| Product Status | New / Surplus* |
| Dimensions | Approx. 33 × 17.8 × 3.5 cm* |
| Weight | Approx. 4 lb / 1.8 kg* |
| Country of Origin | USA |
| Power | 24 VDC nominal; application-dependent |
*Physical specifications and product condition can vary by individual inventory. Published sources report approximately 4 lb for the assembled board and approximately 33 × 17.8 × 3.5 cm for one listed configuration.
🔌 Key Features
• EX2100e excitation control application
• Exciter auxiliary I/O interface functionality
• H1A configuration associated with TMR operation
• Interfaces with M1, M2, and C control sections
• Supports field voltage and field current feedback
• Supports de-excitation and crowbar functions
• Interfaces with field-ground detection circuitry
• Supports auxiliary contactor and field-flashing functions
• High-speed serial communication with the control architecture
• Compatible with related EX2100e auxiliary boards and modules
🏭 Discontinued Status
The IS200EAUXH1A belongs to the legacy GE EX2100e/Mark VI IS200 family. Current availability is commonly associated with surplus, replacement, repair, or existing inventory rather than normal new-production distribution. Exact lifecycle status should be verified against the installed EX2100e system and board revision.
❓ Common Questions & Answers
Q: What is the IS200EAUXH1A?
A: It is a GE Exciter Auxiliary I/O Interface Board designed for the EX2100e Excitation Control System.
Q: What does the EAUX board do?
A: It provides auxiliary I/O interfacing and signal conditioning for excitation-system functions such as field feedback, de-excitation, crowbar status, contactors, and field-ground detection.
Q: What does H1A indicate?
A: The H1A configuration is associated with TMR operation. The H2A designation is used for the corresponding simplex configuration.
Q: Is IS200EAUXH1AAA related to IS200EAUXH1A?
A: Yes. IS200EAUXH1AAA is a specific full part-number configuration within the IS200EAUXH1A board family. The complete board marking should be matched before replacement.
Q: Which control sections does it interface with?
A: The board is associated with the M1, M2, and C control sections of the EX2100e architecture.
Q: Does it support field voltage and current feedback?
A: Yes. These are among the auxiliary feedback functions associated with the EAUX board.
Q: Can it be replaced with an H2A version?
A: The H2A version represents a different redundancy configuration, so direct substitution should not be assumed. Verify the complete system configuration and hardware revision first.
Q: What should be checked before installation?
A: Check the complete part number, revision, board markings, connectors, terminal-board wiring, controller configuration, and the applicable EX2100e system documentation.
🛡️ Safety Notes
• Isolate and lock out system power before removing or installing the board.
• Use appropriate ESD protection when handling the PCB.
• Verify all connectors and wiring before energizing the system.
• Confirm the exact hardware revision and redundancy configuration before replacement.
• Excitation control equipment should be serviced by qualified industrial automation personnel.
📦 Recommended GE Models
- IS200EACFG2A — Exciter AC Feedback Board
- IS200EACFG2B — Exciter AC Feedback Board
- IS200EACFG3A — Exciter AC Feedback Board
- IS200EACFG3B — Exciter AC Feedback Board
- IS200EBACG1A — Exciter Bridge AC Feedback Board
- IS200EBKPG1A — Exciter Backplane Board
- IS200EBKPG1B — Exciter Backplane Board
- IS200EDEXG1A — Exciter De-Excitation Board
- IS200EXAMG1A — Exciter Auxiliary Monitoring Board
- IS200HSLAH2A — High-Speed Link Assembly
- IS200EDFFH1A — Exciter Digital Field Feedback Board
- IS200EACFG1A — Exciter AC Feedback Board
- IS200EPCTG1A — Exciter Power Current Transformer Board
- IS200EPSMG1A — Exciter Power Supply Module
- IS200VGENH1B — Voltage Generator Interface Board
