Original GE UCSB fan‑less standalone controller for Mark VIe, EX2100e, LS2100e turbine & excitation control system.

Product Overview

IS420UCSBH1A is UCSB compact standalone controller for GE Speedtronic Mark VIe control platform, also compatible with EX2100e excitation and LS2100e static starter systems. Equipped with Intel 600MHz EP80579 processor running QNX real‑time OS, it executes turbine speed regulation, load control, sequence logic and protection algorithms. It communicates with distributed remote I/O packs over redundant IONet Ethernet, stores firmware, application programs and fault logs in onboard flash memory. Fan‑less, battery‑free passive cooling design improves long‑term reliability. Supports simplex, dual hot‑standby and TMR triple‑modular‑redundant architecture. Widely used as maintenance spare part for gas‑steam turbine, generator excitation control cabinets in power‑plant and petrochemical industry.

Key Features

• 600 MHz Intel EP80579 embedded processor for deterministic real‑time control logic calculation
• Multiple 10/100Mbps Ethernet ports for redundant IONet I/O network and supervisory network communication
• On‑board flash storage for firmware, application configuration and timestamped fault event logs
• Supports simplex, dual hot‑standby and TMR triple‑modular‑redundant system deployment
• Fan‑less passive cooling, battery‑free design, eliminates fan and battery failure risks
• Front‑panel LED indicators for power, operation status and module fault diagnosis
• Compact panel‑mount housing, suitable for stacking installation for triple‑redundant unit layout

• Complies with ATEX Zone 2 and UL industrial certification for hazardous area applications

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Technical Specifications

• Brand: GE (Vernova)
• Model: IS420UCSBH1A
• Module Type: UCSB Stand‑Alone Controller
• System Platform: Speedtronic Mark VIe, EX2100e, LS2100e
• Processor: 600 MHz Intel EP80579
• Operating System: QNX Neutrino real‑time OS
• Memory: 256MB DDR2 SDRAM with ECC
• Storage: On‑board NAND flash memory
• Power Supply: 18‑30VDC, nominal 24VDC
• Max Current: 1.5A DC
• Weight: Approx 1.09kg
• Operating Temp: ‑30℃ ~ +65℃
• Storage Temp: ‑40℃ ~ +85℃
• Humidity: 5‑95% non‑condensing

• Installation: Cabinet panel‑mount installation

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Compatibility

Compatible with GE Mark VIe / EX2100e / LS2100e control system. Firmware matching, control program download and IONet communication loop test required after replacement.