IS420UCPAH1A GE Module Parts

Product Summary
The GE IS420UCPAH1A Mark VIe controller delivers real-time control with integral I/O, 2 analog inputs, 4 digital channels, and simplex IONet communication. Compact, low-power (4W), and built for durability in -40 to 70°C environments, it suits simplex turbine control where space and efficiency matter.
Product Description
Product Overview

The GE IS420UCPAH1A is a compact controller platform with integral I/O, manufactured by General Electric (GE) for the Mark VIe turbine control system. The module is designed to execute real-time control logic and application programs while providing integrated input and output signal processing. It can also communicate with external I/O modules through a simplex IONet network.

The IS420UCPAH1A consists primarily of an IS400BPPCH2A processor board and an IS400STWCH1A base I/O board. Unlike the expanded IS420UCPAH2A, the H1A version does not include the additional WEXP expansion I/O board. It is particularly suitable for simplex turbine control applications where compact installation, integrated I/O, and low power consumption are important.

Technical Specifications
Parameter Specification
ManufacturerGeneral Electric (GE)
Model NumberIS420UCPAH1A
Product SeriesMark VIe
Product TypeController Platform with Integral I/O
Controller TypeUCPA
Processor BoardIS400BPPCH2A
Base I/O BoardIS400STWCH1A
Expansion BoardNot included
ProcessorFreescale 3308
RAM64 MB
Operating SystemQNX
Configuration SoftwareToolboxST
Nominal Input Voltage12 VDC
Operating Voltage Range9–16 VDC
Power ConsumptionApproximately 4 W
Analog Inputs2
Analog OutputsNot provided
Digital I/O4 configurable channels
Pulse Inputs2 Hall Effect inputs
I/O NetworkSimplex IONet
RedundancySimplex
Mounting MethodBase-mounted / Panel-mounted
CoolingNatural convection
Cooling FanNot required
BatteryNot required
Operating Temperature-40 to +70°C
DimensionsApproximately 6.3 × 4.5 × 2.8 inches
GE IS420UCPAH1A Mark VIe controller module with integral I/O, front view showing processor and base I/O boards
GE IS420UCPAH1A Mark VIe controller module with integral I/O.
Main Functions
  • Real-Time Control Processing: Executes control algorithms and application logic for turbine and industrial automation systems.
  • Analog Signal Acquisition: Receives analog signals from field instruments and processes measurement data for control applications.
  • Digital Input and Output Control: Supports equipment status monitoring, interlocking, and discrete control operations.
  • Pulse Signal Processing: Processes Hall Effect pulse signals for rotational speed monitoring and related applications.
  • IONet Communication: Communicates with external distributed I/O packs through a simplex IONet connection.
  • System Diagnostics: Uses onboard LED indicators to monitor controller status, digital I/O activity, pulse inputs, and diagnostic conditions.
IS420UCPAH1A vs. IS420UCPAH2A
Specification IS420UCPAH1A IS420UCPAH2A
Processor BoardIS400BPPCH2AIS400BPPCH2A
Base I/O BoardIS400STWCH1AIS400STWCH1A
Expansion BoardNoIS400WEXPH1A
Analog Inputs28
Analog Outputs02
Digital I/O48
Hall Effect Inputs22
RAM64 MB64 MB
Power ConsumptionApprox. 4 WApprox. 4 W
Power Supply12 VDC12 VDC
Comparison view of GE IS420UCPAH1A and IS420UCPAH2A Mark VIe controller modules showing expansion board differences
Side-by-side comparison of the IS420UCPAH1A and IS420UCPAH2A controller platforms.
Frequently Asked Questions
Q1: What is the GE IS420UCPAH1A used for?

It is used for real-time control processing and integrated I/O management in GE Mark VIe turbine control systems.

Q2: How many analog inputs does the IS420UCPAH1A have?

It provides two analog input channels.

Q3: Does the IS420UCPAH1A support analog outputs?

No. The H1A version does not include the two additional analog outputs available on the H2A expansion platform.

Q4: What is the operating voltage?

The nominal supply voltage is 12 VDC, with an operating range of 9–16 VDC.

Product Details
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IS420UCPAH1A GE Module Parts

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GE Module Parts replacement

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GE Module Parts with warranty

Operatingtemperature: -20°C To 70°C
Voltagerating: 120V - 240V
Voltage: 120V
Parttype: Module
Powerrating: 50W
Weight: 250 Grams
Switchingfrequency: 20kHz
Compatibility: GE Module Systems

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