Description

Product Overview

The GE IS200EAUXH1AAA is the auxiliary function processor board for GE EX2100e generator excitation control system under Mark VIe Speedtronic turbine control platform. It processes auxiliary analog and discrete signals, executes excitation sequence logic, fault monitoring and alarm handling for generator excitation cabinets, supporting simplex, dual and TMR triple modular redundant architectures for power generation high availability. This module collects status of cooling fans, field breakers, temperature and auxiliary contact signals, and reports fault diagnostics back to the main exciter controller, eliminating blind spots in excitation system supervision. Power plant turbomachinery control engineers and reliability teams rely on this spare board for EX2100e cabinet repair and overhaul. Conformal coated PCB withstands vibration and wide temperature fluctuations in turbine control cabinets, while front diagnostic LEDs show power, bus communication and channel fault status for fast on-site troubleshooting.

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Technical Specifications

• Product Model: IS200EAUXH1AAA
• Brand: GE
• Warranty: One Year
• Input Voltage: 18–30 V DC
• Operating Temperature: -30 °C to 65 °C
• Storage Temperature: -40 °C to 85 °C
• Response Time: Deterministic cyclic signal sampling and fault detection
• Protection Class: Conformal coated; Class I Div 2 / ATEX Zone 2 approved
• Accuracy Class: Not applicable (auxiliary function processor board)
• Output Frequency: 50/60Hz grid auto sensing
• Rated Current Range: Low logic power consumption
• Communication Interface: Dual IONet Ethernet ports; edge connector to EX2100e backplane
• Supported Protocols: IONet for Mark VIe control network
• Overload Capacity: Watchdog protection; over-temperature, ESD surge suppression; wire-break and channel fault detection
• Dimensions: Standard Mark VIe single-slot PCB form factor

Application Scenarios

• Steam Turbine Generator EX2100e Excitation Cabinet: This auxiliary board monitors exciter cooling fans, field breaker and thermal sensor signals. The IS200EAUXH1AAA transmits real-time auxiliary status and fault alarms to the main exciter controller.
• Combined Cycle Gas Turbine Excitation Control: Installed in Mark VIe racks, it manages auxiliary sequence logic for generator field switching and excitation purge interlock protection.