GE IS430SNUAH1A Universal Analog Input/Output (I/O) Module

GE IS430SNUAH1A Universal Analog Input/Output (I/O) Module

Product Overview

The GE IS430SNUAH1A is a high-performance universal analog input/output (I/O) module designed for GE’s Mark VIe Speedtronic Turbine Control System, serving as a critical interface between field devices and the central controller in industrial automation.  Engineered to process both analog inputs (e.g., temperature, pressure) and outputs (e.g., valve position commands), this module ensures precise data conversion and real-time communication, making it indispensable for gas turbines, steam turbines, and rotating machinery in power generation, oil and gas, and heavy manufacturing.

As part of the Mark VIe distributed architecture, the GE IS430SNUAH1A features 16 analog input channels (4–20 mA, 0–10 VDC) and 8 analog output channels (4–20 mA), with 2500 Vrms galvanic isolation between channels to eliminate electrical interference.

Its 32-bit microprocessor executes signal conditioning—including filtering, linearization, and scaling—at sub-millisecond speeds, ensuring accurate data for control loops.

The module’s compact 3U VME form factor (228.6 mm × 101.6 mm × 165.1 mm) and rugged construction—triple-layer conformal coating, IP20 enclosure—enable operation in harsh environments (-30°C to +65°C) with high vibration, humidity, and chemical exposure.

In automation systems, the GE IS430SNUAH1A acts as the bridge between field sensors (e.g., RTDs, pressure transmitters) and actuators (e.g., control valves, variable-frequency drives), translating analog signals into digital commands for turbine governors, compressor anti-surge systems, and generator excitation systems.

Its dual 100 Mbps Ethernet ports (IONET protocol) support redundant communication, ensuring uninterrupted data flow in safety-critical applications.

Compatibility with IS230TCISH6C terminal boards allows deployment in hazardous locations (Class I, Division 2), adhering to ATEX and IECEx standards.

The GE IS430SNUAH1A’s hot-swappable design and front-panel diagnostics (Power, Run, Fault LEDs) simplify maintenance, solidifying its role as a reliable workhorse in mission-critical operations.

IS430SNUAH1A

Technical Specifications

Parameter Name    Parameter Value

Product Model    GE IS430SNUAH1A

Manufacturer    General Electric (GE)

Product Type    Universal Analog Input/Output (I/O) Module

Series    Mark VIe Speedtronic Turbine Control System

Input Channels    16 analog inputs (4–20 mA, 0–10 VDC)

Output Channels    8 analog outputs (4–20 mA)

Isolation    2500 Vrms galvanic isolation (channels to ground)

Communication Interface    2 × 100 Mbps Ethernet (IONET protocol)

Power Supply    24 VDC ±10% (2.5 A max)

Physical Dimensions    228.6 mm (H) × 101.6 mm (W) × 165.1 mm (D)

Weight    1.3 kg

Operating Temperature    -30°C to +65°C

Humidity    5–95% non-condensing

Mounting Type    3U VME rack mount