Basic Information

Model Relationship

• IS215ACLEH1AB: Complete assembly/unit model (ACLE: Application Control Layer Module)

• IS200ACLEH1ABA: Core PCB board model (internal core circuit board of IS215ACLEH1AB, forming a complete ACLE control module together)

• Brand & Series: GE Speedtronic Mark VI Turbine Control System, EX2100 Synchronous Generator Excitation Control System

• Product Type: Application Control Layer Core Controller, Main Control CPU Module for Excitation System, Real-Time Logic Operation & Communication Management Unit

• Compatible Systems: GE Mark VI TMR (Triple Modular Redundant) Control System, EX2100 Excitation System, compatible with EX2100 racks, IS200ERRB redundant backplanes, VME bus, EPSM power modules

• Country of Origin: USA

• Function: Serves as the main control core of the EX2100 excitation system, performing excitation closed-loop control logic, real-time calculation, parameter monitoring, alarm handling, system communication management, data interaction and fault diagnosis, acting as the core decision-making unit for excitation control

Product Overview

Core Functions

1. Real-Time Control Calculation: Equipped with 486/100MHz or Pentium P5/266MHz processor, executing complex algorithms such as excitation PID closed-loop control, limiting, over/under excitation protection, de-excitation logic and synchronous tracking, with millisecond-level response to ensure excitation regulation accuracy and dynamic performance.

2. System Communication Management: Dual 10BaseT Ethernet ports (ENET1/ENET2), dual RS-232 serial ports (COM1/COM2), enabling real-time data interaction with Mark VI main controller, I/O modules, HMI, host computers and third-party systems, supporting redundant network switching.

3. Data Storage & Firmware Management: On-board SDRAM for operation and CompactFlash non-volatile memory for storing control programs, configuration parameters, operation logs and fault records, supporting online firmware upgrade, parameter configuration and historical data review via GE Toolbox software.

4. Redundancy & Hot-Swapping: Compatible with EX2100 redundant racks/backplanes (IS200ERRB), supporting bumpless master-standby switching; standard VME slot installation, supporting hot-swapping and online replacement without system interruption.

5. Status Monitoring & Fault Diagnosis: Multi-LED indicators (Active, OK, ENET, Status, Flash) for real-time module status display; built-in hardware watchdog, overvoltage, overcurrent and over-temperature protection, automatically blocking output, reporting alarms and recording fault codes on faults, supporting remote diagnosis.

6. Industrial-Grade Reliability: Wide temperature range, anti-vibration, moisture/dust resistant, conformal coating, UL94 V‑0 flame retardant, meeting SIL safety requirements for harsh working conditions with strong EMI and hazardous areas.

Technical Specifications

• Core Processor: 486 100MHz or Pentium P5 266MHz (optional)

• On-Board Memory: SDRAM (operating memory), CompactFlash (firmware/parameter/log storage, non-volatile, no battery backup)

• Power Supply: 5VDC (backplane power, redundant input), 24VDC auxiliary power (18–32VDC)

• Power Consumption: Typical 8W, max ≤8.5W

• Communication Interfaces: 2×10BaseT Ethernet (RJ45), 2×RS-232 Serial (COM1/COM2), VME backplane bus

• Status Indication: Active, OK, ENET, Status, Flash LEDs

• Protection Functions: Overvoltage, overcurrent, over-temperature, short-circuit, watchdog reset, communication fault protection

• Temperature: Operating 0°C to +60°C; Storage -40°C to +85°C

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

• Form Factor: Standard 6U VME board, occupies 2 rack slots, fits EX2100 standard cabinets

• Protection Rating: IP20 (cabinet-mounted), conformal coating, anti-EMI/anti-vibration design

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

• MTBF: >150,000 hours

Typical Applications

• Main control for EX2100 excitation systems, closed-loop regulation of synchronous generator excitation current/voltage, power factor and reactive power

• Mark VI gas/steam turbine control systems, coordinated excitation-turbine control, speed/load/temperature monitoring

• Excitation control for generator sets in combined-cycle power plants, thermal power plants, hydropower plants, petrochemical drive units and offshore platforms

• Upgrades, ACLE main controller replacement and control performance optimization for legacy EX2000/Mark VI systems

• Remote monitoring, parameter configuration, fault diagnosis and firmware upgrade for excitation systems