GE IS420UCSBH1A Mark VIe UCSB Controller

Product Overview

The GE IS420UCSBH1A (Functional Abbreviation: UCSB) is a primary Core Controller for the PACSystems™ Mark VIe, EX2100e, and LS2100e control families. As the first of the UCSB series, it provides the computational horsepower required for complex turbine logic, excitation control, and static starter functions. 

Technical Specifications

• Part Number: IS420UCSBH1A

• Manufacturer: General Electric (GE)

• Processor: Intel 600 MHz EP80579

• Operating Voltage: 18 VDC to 30 VDC (24 VDC Nominal)

• Max Current: 1.5 ADC

• Operating Temp: -22°F to 149°F (-30°C to +65°C)

• Redundancy: Supports Simplex, Dual, and TMR (Triple Modular Redundant)

• Certifications: ATEX Zone 2 (Group IIC), UL E207685 (Class I, Div 2), CE

• Design: Fanless, Battery-free, Solid-state

Key Features and Engineering Advantages

• Unified Control Platform: A single UCSB module can be programmed to act as a Mark VIe (Turbine Control), EX2100e (Excitation), or LS2100e (Static Starter) controller, reducing the variety of spare parts a facility needs to stock.

• Deterministic Performance: The Intel EP80579 processor provides the high-speed logic execution and communication bandwidth necessary for sub-millisecond control loops required in high-inertia turbine systems.

• High-Availability Networking: Features dedicated Ethernet ports for IONet—the high-speed internal network used to communicate with I/O modules—ensuring reliable data throughput even in TMR configurations.

• Maintenance-Free Design: By eliminating moving parts (fans) and consumables (batteries), the UCSB significantly increases the Mean Time Between Failures (MTBF) compared to traditional industrial PCs.

• Hazardous Location Rated: Certified for ATEX Zone 2 and Class I, Division 2, allowing the controller to be installed in environments where explosive gases may be present under abnormal conditions.

• Software Consistency: The UCSB runs the same core operating software as the larger UCSC controllers, ensuring a seamless migration path and consistent engineering experience via the ToolboxST™ application.