GE IS220UCSAH1A

Product Overview

The IS220UCSAH1A is a core embedded controller module (UCSA) engineered by GE for the Mark VIe Speedtronic platform, serving as the central processing unit for distributed gas turbine control, protection, and monitoring systems. It is powered by a Freescale PowerPC 8349 (PowerQUICC II PRO) processor running at 667 MHz and operates on the QNX Neutrino real-time operating system, ensuring deterministic control logic execution with sub-10 ms response times. The module features six Ethernet ports for IONet and plant network communication, supports simplex, dual, or triple modular redundancy (TMR) configurations, and includes a conformal-coated PCB for enhanced reliability in harsh industrial environments. It communicates with Mark VIe I/O modules via the onboard I/O network (IONet) interface, enabling real-time monitoring of sensor inputs and control of actuator outputs.
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Description

Technical Specifications

Parameter Details
Model Number IS220UCSAH1A
Manufacturer General Electric (GE Vernova, Boards & Turbine Control)
Module Type UCSA Embedded Controller Module
Series Compatibility Mark VIe, Mark VIes, EX2100e, LS2100e Speedtronic Systems
Functional Revision A
Form Factor Rack-Mounted Modular PCB Assembly
Processor Freescale PowerPC 8349 (PowerQUICC II PRO), 667 MHz
Operating System QNX Neutrino 6.5 Real-Time OS
Power Supply 18–36 VDC (nominal 28 VDC)
Power Consumption 12 W (typical)
Memory 256 MB DDR RAM, 1 GB CompactFlash Storage
Isolation 2500 V RMS (channel-to-channel, channel-to-ground)
Operating Temperature 0°C to +65°C
Storage Temperature -40°C to +85°C
Relative Humidity 10–95% (non-condensing)
Dimensions (H×W×D) 173 mm × 205 mm × 55 mm (6.81 in × 8.07 in × 2.17 in)
Weight 1.5 kg (3.3 lbs)
Communication Interfaces 6 × 10/100 Mbps Ethernet (IONet, Plant Network), RJ-45 Console Port
Certifications UL Class I Division II, ATEX Zone 2, IEC 61010
Manual Reference GEH-6725R (UCSA Controller User Guide)
Software Compatibility ControlST, ToolboxST, CIMPLICITY HMI

I/O & Communication Interfaces

Interface Type Quantity Details
Ethernet Ports 6 10/100 Mbps; 4 for IONet, 2 for plant network (Modbus TCP/IP, SRTP)
Console Port 1 RJ-45 (RS-232) for local configuration and diagnostics
IONet Interface 4 Private Ethernet for communication with Mark VIe I/O modules
Indicators 8 Front-Panel LEDs PWR, RUN, FAULT, COMM1–COMM4 (IONet status), NET1–NET2 (Plant Network status)
PCB Coating Conformal Coating Enhances protection against moisture, dust, and chemical contaminants
Mounting Rack-Mounted Compatible with Mark VIe standard chassis

Function Features

  • High-Performance Processing: Freescale PowerPC 8349 at 667 MHz and QNX OS deliver deterministic control logic execution with sub-10 ms response times.
  • Redundancy Support: Configurable for simplex, dual, or TMR operation to maximize availability in critical control applications.
  • IONet Communication: 4 dedicated IONet ports enable high-speed, deterministic communication with Mark VIe I/O modules for real-time data exchange.
  • Plant Network Integration: 2 Ethernet ports support Modbus TCP/IP and SRTP protocols for seamless integration with plant-wide control systems.
  • Hot-Swappable Design: Edge connectors allow module replacement without system shutdown, minimizing maintenance downtime.
  • Front-Panel Diagnostics: 8 LEDs provide real-time status of power, processor operation, network activity, and faults for rapid troubleshooting.
  • Conformal-Coated PCB: Protects against moisture, dust, and chemical contaminants, ensuring reliable operation in harsh industrial environments.
  • Hazardous Location Compliance: Certified for NFPA Class I Division II and ATEX Zone 2, enabling use in explosive atmospheres.
  • Software Integration: Works with ControlST for control logic development and ToolboxST for remote configuration, firmware updates, and diagnostics.
  • Deterministic Control: QNX Neutrino OS ensures predictable execution of control algorithms for turbine speed, temperature, and load management.
  • Independent Watchdog Function: Monitors system health and triggers fail-safe actions if critical faults are detected.
  • Scalable I/O Connectivity: Supports up to 16 I/O modules via the IONet interface, providing flexible expansion for large-scale control systems.

Application Scenarios

  • Gas Turbine Control: Serves as the central controller for aeroderivative and heavy-duty gas turbines, managing speed, temperature, and load control with precision.
  • Steam Turbine Control: Controls steam turbine operations in thermal and combined-cycle power plants, ensuring efficient energy conversion and system stability.
  • Combined-Cycle Power Plants: Integrates gas and steam turbine control, heat recovery steam generator (HRSG) management, and balance-of-plant processes.
  • Rotating Equipment Monitoring: Monitors and protects compressors, generators, and pumps in industrial facilities, preventing catastrophic failures via real-time diagnostics.
  • Hazardous Industrial Environments: Operates safely in Class I Division II and ATEX Zone 2 locations, such as refineries, chemical plants, and offshore platforms.
  • Turbine Retrofits: Direct replacement for legacy UCSA modules in Mark VIe upgrades, enhancing control reliability and diagnostics capabilities.
  • Distributed Control Systems: Acts as a node in distributed control architectures, coordinating multiple I/O modules for comprehensive plant control.

Compatibility and Integration

  • Mark VIe Ecosystem: Fully compatible with Mark VIe I/O modules (e.g., IS220PDIOH1B, IS220PDOAH1A, IS220PTURH1A), terminal boards, and communication interfaces.
  • Software Tools: Supports ControlST for control logic development and ToolboxST for configuration, firmware updates, and performance verification.
  • IONet Connectivity: Communicates with I/O modules via the IONet interface, ensuring high-speed, deterministic data transfer for real-time control.
  • Redundancy Configurations: Works with redundant power supplies and I/O modules to support TMR architectures for safety-critical applications.
  • Documentation: Detailed guidelines available in the GE UCSA Controller User Guide (GEH-6725R) and Mark VIe System Integration Manual.
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