GE IS220UCSAH1A UCSA High Performance Standalone Controller for Mark VIe Speedtronic Turbine System

GE IS220UCSAH1A is a fanless UCSA series independent processor for GE Mark VIe platform, built on 667MHz PowerPC architecture running QNX real-time OS. It executes turbine speed regulation, emergency protection, sequence logic and acoustic monitoring, communicates with distributed I/O via synchronous IONet Ethernet. Supports dual/TMR triple redundant seamless switchover, compatible with EX2100e generator excitation and LS2100e starter systems. Widely used in gas/steam turbine control cabinets as critical maintenance spare part.

PN: IS220UCSAH1A, Manufacturer: GE USA

CPU: 667MHz Freescale PowerPC 8349

Memory: 256MB DDR SDRAM, 1GB CF flash storage

Power: 18–36VDC, typical 12W, fanless convection cooling

Communication: Multiple IONet ports, service Ethernet, RS232 debug port, IEEE1588 clock sync

Redundancy: Dual hot standby / TMR triple modular redundant

Operating Temp: 0℃ ~ +65℃; Humidity 5%–95% non-condensing

Protection: IP20 cabinet installation, ATEX Zone 2 certified

Weight: ~0.86kg; Commission software: ControlST

Key Features

Fanless solid-state design, no mechanical failure points for long-term turbine hall operation.

TMR triple redundant architecture, fault-tolerant control to avoid unit trip from single CPU failure.

Deterministic IONet bus with microsecond synchronization for fast protection interlock response.

Integrated acoustic monitoring function for turbine vibration abnormal detection.

Front panel LED indicators for power, run, fault and communication quick diagnosis.

Hot-swap supported, online replacement without shutting down control system.

Unified platform compatible with excitation & static starter control systems.

Industrial anti-vibration PCB, conformal coating optional for harsh environment.

Application Scope

Core main controller for thermal power plant Mark VIe gas/steam turbine control cabinet

Central processing unit for EX2100e generator voltage & reactive power excitation regulation system

LS2100e large synchronous motor static starter system real-time control module

Petrochemical large industrial gas turbine, compressor control cabinet spare replacement

Offshore platform power generation unit, hazardous area turbine safety control equipment

Global aging Mark VIe system overhaul, spare inventory and technical transformation projects