GE IS420UCSCS2A UCSC‑SIL Safety Universal Controller for Mark VIeS Turbine Control System

Product Description

IS420UCSCS2A is the safety‑rated UCSC universal controller (logic solver) for GE Mark VIeS Speedtronic turbine safety control system. It adopts fan‑less dual‑core architecture, runs QNX real‑time

operating system, executes safety‑critical control logic, turbine protection sequences and interlock functions, complies with IEC61508 SIL2 / SIL3 functional‑safety requirements. Equipped

with multiple Ethernet IONet ports for connecting distributed I/O packs, supports simplex, dual‑duplex and TMR triple‑modular‑voting redundancy configuration. Configured via ControlST

ToolboxST software. Widely used in gas‑turbine, steam‑turbine, generator and compressor safety‑instrumented control cabinets for power‑plant and oil‑gas industryManualsLib.

Technical Specifications

Full Model: IS420UCSCS2A Brand: GE Vernova, Origin: USA Applicable System: GE Mark VIe / Mark VIeS Speedtronic Turbine Safety Control Module Type: UCSC‑SIL Safety Universal Controller (Logic Solver) Processor: Dual‑Core 1.6 GHz AMD G‑Series Operating System: QNX Neutrino real‑time OS Memory: 2 GB DDR3 SDRAM On‑board Storage: 128 MB internal flash memory Communication Ports: 5 × RJ45 Ethernet (IONet & management), RS232 debug port Redundancy Mode: Simplex, Dual‑Duplex, TMR Triple Modular Redundancy Safety Certification: IEC61508 SIL 2 / SIL 3 capable Power Supply: 18‑32 VDC, nominal 24 VDC Installation: DIN‑rail mounting Cooling: Fan‑less passive heat‑sink cooling Operating‑Temperature: ‑40℃ ~ +70℃ Storage‑Temperature: ‑40℃ ~ +85℃ Ambient Humidity: 5%‑95% non‑condensing industrial‑grade Dimension: 168 × 150 × 55 mm Net Weight: Approx. 0.91 kg Certifications: CE, UL, Class1 Div2, ATEX, industrial EMC certification

Key FeaturesSafety‑rated UCSC‑SIL logic solver, meets IEC61508 SIL2/SIL3 for turbine safety‑instrumented functions Dual‑core high‑performance processor, fan‑less passive cooling, no fan‑failure risk Multiple Ethernet IONet interfaces, deterministic real‑time communication with distributed I/O packs Flexible redundancy support: simplex, dual hot‑standby and TMR triple‑modular voting for critical turbine protection Real‑time QNX operating system, fast execution for overspeed, over‑temperature and emergency trip logic Compatible with ControlST ToolboxST for configuration, monitoring, event logging and fault diagnosis Front‑panel LED status indicators for power, network, run and fault visual diagnosis Designed for continuous power‑generation critical safety loops, factory full burn‑in and safety‑function validation test