GE Vernova IS420UCSBS1A Mark VIeS UCSB Safety Controller Module

Description

GE Vernova IS420UCSBS1A Mark VIeS UCSB Safety Controller Module

Product Description

The IS420UCSBS1A is a UCSB safety controller module for GE Vernova Mark VIeS Speedtronic functional safety control system. This standalone safety processor integrates CPU, power circuit, IONet communication and real-time operating system without dependency on traditional rack backplane. It runs QNX Neutrino real-time OS to perform deterministic execution of safety logic, overspeed protection and emergency trip functions. Certified for SIL2/SIL3 per IEC 61508, it exchanges high-speed safety data with distributed Mark VIeS I/O packs over IONet Ethernet. Programmed via ToolboxST / ControlST engineering software, it serves as the safety decision core for turbine protection and power generation safety instrumented systems, supporting redundant deployment for high-availability power plant applications.

IS420UCSBS1A

Technical Specifications

• Part Number: IS420UCSBS1A
• Manufacturer: GE Vernova (GE Energy)
• Series: Mark VIeS Speedtronic
• Device Type: UCSB Universal Control & Safety Controller
• Processor: Intel EP80579 600MHz
• Operating System: QNX Neutrino RTOS
• Safety Certification: IEC 61508 SIL2 / SIL3
• Supply Voltage: 28 VDC (27.4–28.6V)
• Power Consumption: 15.6W nominal, 26.7W peak
• Communication: IONet 10/100BASE-TX Ethernet, USB service port
• Operating Temperature: -30°C ~ +65°C
• Relative Humidity: 5%–95%, non-condensing
• Mounting: Panel mount / optional DIN rail
• Approvals: UL, Class I Div 2 Group IIC, CE
• Cooling: Fanless passive cooling

Key Features

1. SIL2/SIL3 certified safety controller for turbine protection and SIS applications
2. Standalone architecture, no mandatory backplane requirement
3. QNX real-time operating system for deterministic safety logic execution
4. IONet high-speed Ethernet for distributed safety I/O communication
5. Comprehensive continuous self-diagnostics for hardware and communication faults
6. Fanless passive cooling design to reduce maintenance points
7. Supports redundant controller configuration to eliminate single point of failure
8. ToolboxST / ControlST programming, configuration and diagnostic support

IS420UCSBS1A

Application Scenarios

• Gas turbine and steam turbine overspeed protection systems
• Combined cycle power plant safety instrumented systems
• Power generation emergency shutdown (ESD) protection
• Burner management systems (BMS) for power boilers
• Petrochemical turbine and large rotating machinery safety control
• Oil & gas power generation safety interlock
• Industrial power island critical protection control
• Generator excitation system safety interlock

Matching / Auxiliary Components

• Mark VIeS I/O packs (IS420YDAIH1B, IS220YDAIH1A etc.)
• IONet industrial Ethernet switches & shielded cables
• 28VDC redundant power supply units
• ToolboxST / ControlST engineering workstation
• Turbine sensor assemblies: speed probes, pressure & temperature transmitters
• Termination boards and field wiring terminal blocks
• HMI and historian for alarm & event monitoring
• Redundant network hardware for safety IONet ring

Related GE Mark VIe / Mark VIeS Series Models (9 pcs)

1. IS420UCSBH1A UCSC Controller Module
2. IS420YDAIH1B Analog Input I/O Pack
3. IS220YDAIH1A Analog Input Module
4. IS420YDOAS1A Digital Output I/O Pack
5. IS420YDIAS1A Digital Input I/O Pack
6. IS430SNUAH1A Network Switch Module
7. IS210BAPAH1A Analog Pack
8. IS220UCSAH1A Mark VIe Controller
9. IS420UCSCH1A UCSC Safety Controller