Description

GE IS420UCSBH4A UCSB Universal Control Station Controller Module

Technical Specifications

• Product Model: IS420UCSBH4A
• Brand: GE (Baker‑Hughes, Speedtronic Mark VIe / Mark VIeS, EX2100e Excitation System)
• Warranty: One Year
• Input Voltage: 24 VDC (18‑30 VDC) rack‑backplane powered; typical consumption 30 W, 1.1 A @24VDC
• Operating Temperature: ‑30 °C ~ +65 °C rack‑mount; G3 conformal coated for corrosive environments
• Storage Temperature: ‑40 °C ~ +85 °C
• Response Time: Deterministic control loop cycle down to 1 ms; QNX Neutrino real‑time multitasking OS
• Protection Class: IP20, cabinet‑only indoor installation
• Processor: Intel EP80579 quad‑core 1066 MHz onboard real‑time processor
• Memory: 256 MB DDR2 ECC RAM, 2 GB NAND flash for firmware & application logic
• Communication: 4×10/100 Mbps RJ45 Ethernet ports; IONet dedicated turbine safety bus; IEEE 1588 PTP time synchronization
• Local I/O: Hall‑effect pulse inputs, analog measurement inputs, configurable digital status I/O
• Galvanic Isolation: 1500 VAC isolation between field interfaces and system backplane
• Diagnostics: Multi‑color front‑panel LED indicators, comprehensive fault‑event logging, watchdog supervision
• Certifications: Class I Div 2 hazardous‑area rating, CE, UL certified
• Mounting: Standard IS420‑series Mark VIe rack slot form‑factor
• Dimensions / Weight: 244 mm × 174 mm × 96 mm; approx 1.1 kgxrdge.com
• 

Product Overview

The IS420UCSBH4A is a high‑performance UCSB universal control station controller for GE Speedtronic Mark VIe / Mark VIeS turbine and EX2100e generator excitation control systems. It executes core turbine governing, startup‑shutdown sequences, generator automatic voltage regulation, protective trip logic and plant balance‑of‑plant control algorithms. The onboard IONet dedicated safety bus delivers deterministic high‑speed communication with remote I/O packs, excitation hardware and auxiliary control modules. Fan‑less solid‑state construction and conformal coating deliver stable performance under heavy‑EMI power‑plant cabinet environments. It supports dual‑redundant hot‑standby deployment for bumpless switch‑over upon single‑controller hardware failure, improving system availability for critical power‑generation assets.

This turbine controller addresses high‑reliability power‑generation control challenges: powerful real‑time processing for complex turbine algorithms, dedicated IONet safety‑oriented field‑bus, support for redundant configurations, robust industrial conformal‑coated hardware, drop‑in spare‑part compatibility for legacy Mark‑VIe‑series retrofit‑maintenance projects.