Basic Information

• Model: IS200EROCH1ABB

• Brand & Series: GE Speedtronic Mark VI / Mark VIe Turbine Control System, EX2100 Excitation Control System (EROC: Exciter Regulator Options Card)

• Product Type: Exciter Regulator Options Card, Excitation Control Expansion Board, Excitation System Configuration Module

• Compatible Systems: GE Mark VI, Mark VIe TMR (Triple Modular Redundant) Control System, EX2100 Synchronous Generator Excitation Control System

• Country of Origin: USA

• Function: Provides extended excitation regulation functions, integrates voltage/power factor regulation, stabilizer, protection logic and communication interfaces, ensuring stable operation of generators under all working conditions

Product Overview

Core Functions

1. Precise Excitation Regulation: Realizes closed-loop control of generator voltage, excitation current and power factor with fast response and high accuracy, adapting to load fluctuations and working condition switching.

2. System Stability Enhancement: Built-in Power System Stabilizer (PSS) suppresses low-frequency oscillations and improves the dynamic stability of generators and power systems.

3. Multi-protection Safety: Integrates overvoltage, undervoltage, overcurrent, undercurrent, over-temperature, over-frequency/under-frequency protection. It automatically triggers protection logic during faults to protect the excitation system and generator.

4. Expanded I/O & Communication: Provides multi-channel analog/digital I/O channels, supports RS-232/RS-485 and ISBUS communication, enabling connection to sensors, actuators and upper-level systems for data exchange and remote monitoring.

5. Flexible Configuration & Diagnosis: Supports parameter configuration and secondary development. On-board LEDs and diagnostic interfaces quickly locate fault types, reducing maintenance costs.

6. Industrial-grade Reliability: Wide temperature range, anti-vibration, moisture/dust resistant, UL94 V‑0 flame retardant, adapting to harsh industrial environments. Supports redundant configuration and seamless upgrades.

Technical Specifications

• Processor: DX4-100 486 Processor

• Memory: 8MB RAM, 4MB Flash

• I/O Configuration: 8 AI, 4 AO, 8 DI, 4 DO (12-bit resolution)

• Data Acquisition Frequency: Up to 100 Hz

• Communication Interfaces: RS-232, RS-485, ISBUS

• Input Power: 24 VDC (Typical)

• Power Consumption: Approx. 10 W

• Operating Temperature: -40°C to +85°C (Industrial wide temperature)

• Storage Temperature: -40°C to +85°C

• Relative Humidity: 5%–95% (Non-condensing)

• Dimensions: Approx. 340×216×55 mm (13.39×8.5×2.17 inches)

• Weight: Approx. 1.0 kg

• Mounting: Standard Mark VI cabinet slot installation, hot-swappable supported

• Protection Rating: IP20 (Cabinet-mounted), UL94 V‑0 flame retardant

• Certifications: IEC 61508 SIL 2, CE, UL 61010-1, ATEX (Hazardous location approved)

Typical Applications

• Function expansion and parameter configuration for EX2100 excitation systems in Mark VI/Mark VIe gas and steam turbines

• Precise regulation and stable control of synchronous generator excitation current, voltage and power factor

• Excitation system upgrades and optimizations for combined-cycle power plants, thermal power plants, petrochemical drive units and offshore platform generator sets

• Power System Stabilizer (PSS) configuration and low-frequency oscillation suppression for generators

• Excitation control function expansion modules for retrofitting legacy Mark VI/EX2100 systems