Description
1. Product Title
GE IS420UCSBS1A‑ UCSB Safety Controller Module for Mark VIeS Turbine Safety System
2. Product Overview
The IS420UCSBS1A is a fan‑less universal safety controller module for GE Mark VIeS safety‑instrumented turbine control platforms. Running QNX Neutrino real‑time operating system, this unit executes safety interlock, emergency shutdown and protection logic independent of the main process controller. IS420UCSBS1A communicates with safety‑rated I/O packs over IONet, performs continuous hardware self‑diagnostics and cross‑logic comparison for fault detection. Passive heat‑sink cooling eliminates fan‑related failure points, and no‑battery architecture reduces long‑term maintenance. It implements SIL‑capable safety functions, mitigates risks of turbine overspeed, over‑temperature and abnormal process conditions, and delivers deterministic response to prevent catastrophic asset damage in power‑generation facilities.
3. Technical Specifications
- Brand: General Electric (GE)
- Model: IS420UCSBS1A
- Warranty: One Year
- Condition: 100% New & Original
- Processor: Intel EP80579 600 MHz real‑time processor
- Memory: 256 MB DDR2 SDRAM, on‑board user‑upgradable flash memory
- Operating System: QNX Neutrino real‑time multitasking OS
- Power Supply: Nominal 28 VDC
- Communication: 5 × 10/100 Base‑TX Ethernet ports (IONet and UDH networks), serial COM port, USB service port
- Cooling: Fan‑less passive heat‑sink cooling, no internal battery
- Operating Temp: ‑30 °C to +65 °C
- Mounting: Rack slot‑mount for Mark VIeS control cabinet
- Weight: 1.25 kg
- Compliance: Supports SIL‑3 functional safety requirements, IEC 61508 aligned
5. Application Scenarios
- Gas Turbine Power Generation: Deployed as dedicated safety logic controller for Mark VIeS systems, performing emergency shutdown, overspeed protection and combustion safety interlock for heavy‑duty gas turbines.
- Combined‑Cycle Power Plant: Integrated within safety racks for steam‑turbine protection, executing independent safety logic separate from routine process control to enhance system fault tolerance.
- Industrial Cogeneration Facility: Used for safety instrumented system control of generator‑turbine sets, validating field I/O data and initiating protective trips upon hazardous operating conditions.
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