GE HE693ADC410 Isolated Analog Input Module

The GE HE693ADC410 is an isolated analog input module designed for industrial automation systems, functioning as an interface between sensors and a PLC CPU . It converts voltage input signals from field devices into digital values and places them directly into the PLC’s %AI table for processing . The module is part of the GE Fanuc Series 90-30 PLC family and provides 4 analog input channels with 14-bit resolution . It features 1500VAC (RMS) isolation, both channel-to-channel and channel-to-ground .

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Description

Technical Specifications
This section consolidates specifications from multiple distributor sources. The most commonly cited and authoritative values are listed below.

  • Manufacturer: General Electric (GE) / Horner Electric

  • Product Type: Isolated Analog Input Module

  • Series: Series 90-30

  • Number of Channels: 4 analog input channels

  • Resolution: 14-bit

  • Input Range: ±10V DC

  • Input Impedance: 1 Megohm

  • Isolation Voltage: 1500VAC (RMS) channel-to-channel and channel-to-ground

  • Common Mode Range: ±2000VDC

  • Digital Output Range: -32,000 to +32,000

  • Update Rate: 45 channels per second

  • Conversion Error: 0.05% of full scale

  • Digital Filtering: 1 to 128 samples per update

  • Analog Filtering: 1kHz, 3 Bessel filters

  • Common Mode Rejection: >100dB

  • Power Supply: 24VDC nominal

  • Power Consumption: 2.5W maximum

  • Operating Temperature: 0 to 60°C

  • Storage Temperature: -40 to 85°C

  • Relative Humidity: 5 to 95% non-condensing

  • Altitude: Up to 2000 meters

  • Weight: 0.50 kg (1.1 lb)

Functional Features

  • High-Accuracy Signal Conversion: Converts ±10V analog input signals to a 16-bit digital range of -32,000 to +32,000 directly in the PLC %AI table, with a conversion error of only 0.05% of full scale .

  • Programmable Setpoint Alarms: Each of the four channels includes a setpoint that is configurable via the PLC program through %AQ output registers. When an input signal reaches the setpoint, a corresponding digital input %I is energized in the ladder logic .

  • Superior Isolation and Noise Rejection: Provides 1500VAC (RMS) galvanic isolation between channels and to ground, with common mode rejection exceeding 100dB, protecting the control system from ground loops and high-voltage transients .

  • Integral Signal Filtering: Incorporates both hardware analog filtering (1kHz, 3 Bessel) and software-configurable digital filtering (1 to 128 samples per update) to provide stable readings in noisy electrical environments .

  • Direct PLC Integration: Designed for seamless integration with the Series 90-30 PLC backplane, requiring no external signal conditioners for interfacing with standard industrial sensors .

Application Scenarios
This module is deployed in industrial control systems where accurate analog signal acquisition is essential:

  • Industrial Process Control: Monitors temperature, pressure, flow, and level transmitters in process industries such as chemical, petrochemical, and water treatment plants .

  • Factory Automation: Integrates with PLC systems to collect sensor data from production lines, assembly machines, and automated material handling equipment .

  • Power Systems: Used in power generation and distribution for monitoring transformer temperatures, bus voltages, and other critical analog parameters .

  • Building Automation: Connects to HVAC sensors for temperature and humidity monitoring in commercial building management systems .

  • Transportation Systems: Applied in railway signaling, tunnel ventilation control, and other transport infrastructure monitoring .

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