Description
Product Overview
IS200EAUXH1ABB is the FA interface excitation control auxiliary board for GE Speedtronic Mark VIe turbine control system, part of the EX2100e generator excitation control family. It provides auxiliary signal conditioning, relay outputs, status feedback and diagnostic interfaces for the excitation regulator, handling generator field monitoring, protection interlock and auxiliary I/O signals between the main Mark VIe controller and excitation hardware. The suffix ABB denotes a specific hardware revision variant, functionally compatible with IS200EAUXH1AAA.
Technical Specifications
| Item | Parameter |
|---|---|
| Manufacturer | GE General Electric / GE Vernova |
| Part Number | IS200EAUXH1ABB |
| Product Type | Excitation Auxiliary Function Board (EX2100e TMR Aux Board) |
| Compatible System | Speedtronic Mark VIe, EX2100e Excitation Control |
| Architecture | TMR (Triple Modular Redundant) auxiliary interface |
| Power Supply | Backplane powered, +5VDC, ±15VDC |
| Signal Types | Analog field measurement, digital status inputs, relay interlock outputs |
| On-board Components | Signal transformers, relays, fuses, surge protection circuits, test points |
| Mounting | Rack mount slot in Mark VIe control cabinet |
| Operating Temperature | -30 °C ~ +70 °C |
| Humidity | 5%–95% RH non-condensing |
| Weight | Approx. 2.0 kg |
| Revision Note | ABB hardware variant, pin-to-pin compatible with IS200EAUXH1AAA |
Key Features
- EX2100e Excitation Auxiliary Interface: Dedicated auxiliary board for generator excitation system, manages field voltage/current measurement and protection interlock signals.
- TMR System Compatibility: Designed to work within Mark VIe triple redundant control architecture for high-reliability generator excitation regulation.
- Integrated Relay & Signal Conditioning: On-board relays for excitation trip interlock, signal isolation and conditioning for field sensing signals.
- Comprehensive Hardware Diagnostics: Built-in circuit monitoring, fault detection and status reporting to Mark VIe controller; test points for field maintenance verification.
- Electrical Isolation: Galvanic isolation between high-power excitation sensing circuits and low-voltage controller backplane to suppress EMI and protect core control hardware.
- Revision Interchangeability: IS200EAUXH1ABB can replace IS200EAUXH1AAA in most EX2100e installations after configuration verification.
Applications
- Gas / steam turbine generator EX2100e excitation control
- Thermal power plant generator voltage regulation and field protection
- Combined-cycle power unit turbine control cabinets
- Hydro generator Mark VIe excitation interlock and monitoring
- Industrial captive power plant generator protection systems
Installation & Maintenance Notes
- ESD protection is mandatory during handling; use grounded wrist strap when removing or installing the board.
- Install in designated Mark VIe rack slot; ensure secure backplane connector seating.
- Verify all field wiring connections and fuse integrity before energizing the excitation system.
- Check diagnostic alarms and board LED status after power-up; resolve signal drift or relay faults promptly.
- During overhaul, inspect surge components, relay contacts and solder joints for thermal aging.
- Confirm firmware and system configuration match when replacing between ABB and AAA revision boards.
FAQ
Q: What is the difference between IS200EAUXH1ABB and IS200EAUXH1AAA? A: They are different hardware revision variants of the same auxiliary function board. IS200EAUXH1ABB is mechanically and functionally interchangeable for most EX2100e applications, but site configuration review is recommended before direct swap.
Q: Can this board work with Mark VI (non-VIe) system? A: No, IS200EAUXH1ABB is built exclusively for Mark VIe / EX2100e excitation system, incompatible with legacy Mark VI hardware.
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