GE IS420PUAAH1A
GE IS420PUAAH1A
GE IS420PUAAH1A
GE IS420PUAAH1A
GE IS420PUAAH1A

GE IS420UCSBH1A | UCSB Control Module for Mark VIe – Field Service Notes

  • Model: IS420UCSBH1A (UCSB)
  • Series: Mark VIe / VIeS, EX2100e, LS2100e
  • Type: Standalone Control Processor Module (no on-board I/O)
  • Key Traits: Fan-less, battery-less, single-module controller
  • Primary Use: Executes control logic; redundant safety/non-safety control cores
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Description

Technical Specifications (Hard Data)

  • Processor: Intel EP80579 (600 MHz)
  • Memory: 256 MB ECC DDR2 RAM | 2 GB NAND Flash
  • OS: QNX Neutrino (Real-Time OS)
  • Power: 18–30 VDC (Nominal 24 VDC) | 15.6 W typical | 26.7 W peak
  • Network: 4× 100 Mbps IONet (RJ45) | IEEE 1588 PTP synchronization
  • Temp: -40°C to +70°C | Storage: -40°C to +85°C
  • Certifications: ATEX Zone 2, Class I Div 2, IECEx
  • Dimensions: 50mm (W) × 146mm (H) × 204mm (D) | Weight: ~1.1 kg
  • Mount: Direct panel-mount (vertical fin cooling)
GE IS420PUAAH1A

GE IS420PUAAH1A

Core Function & Architecture

IS420UCSBH1A is a pure logic controller: no field I/O terminals. It acts as a system brain:

  1. Receives all process data exclusively via IONet from remote I/O packs (e.g., IS420 series).
  2. Runs control algorithms (ladder/function block logic).
  3. Sends commands back to I/O packs and other controllers.
  4. Redundancy-ready: Hot-swappable; paired units sync seamlessly.

Why UCSB?

  • Decoupled I/O: Separates control processing from field wiring for flexibility.
  • High Reliability: No moving parts (fan/battery) → MTBF > 500,000 hrs.
  • Compact Footprint: Saves 50% panel space vs. traditional chassis controllers.

 

Typical Applications

  • Gas/steam turbine primary/backup control
  • Safety instrumented functions (SIF) in Mark VIeS systems
  • EX2100e excitation control for generators
  • LS2100e steam turbine controls
  • Balance of Plant (BOP) logic cores

 

Field Pitfalls (Critical for Maintenance)

  1. Insufficient Airflow
    • Must mount vertically with unobstructed fin airflow.
    • Horizontal/blocked mounting causes overheat & thermal shutdown.
  2. Voltage Outside 18–30 VDC Window
    • Under-voltage → brownouts & IONet timeouts.
    • Over-voltage → damages internal DC/DC converters.
  3. Mismatched Firmware
    • Requires ControlST v07.00+; incompatible with older ToolboxST versions.
GE IS420PUAAH1A

GE IS420PUAAH1A

Commercial Note

Please note: The listed price is for reference only and is not binding. Final pricing and terms are subject to negotiation based on current market conditions and availability.

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