GE IC693ALG222 Series 90-30 16-Point Analog Voltage Unit

Product Overview

The GE Fanuc IC693ALG222 is a high-density analog voltage input module designed to expand the capabilities of the Series 90-30 Programmable Logic Controller. This module provides up to 16 single-ended or 8 differential channels, allowing for the precise measurement of various voltage-based industrial signals. Whether monitoring bipolar inputs ranging from -10V to +10V or unipolar signals from 0V to +10V, the IC693ALG222 delivers the accuracy and electrical isolation required for sensitive process control environments.

Technical Specifications

Core Technical Advantages

High-Density Input Capacity

The IC693ALG222 is optimized for space efficiency, offering 16 single-ended input channels in a single PLC slot. This high density allows engineers to monitor a large number of sensors, such as potentiometers or voltage-output pressure transducers, without requiring excessive rack space or additional expansion bases.

Superior Electrical Isolation

Safety and signal integrity are prioritized with 1500V RMS isolation between the field side and the PLC backplane. This robust barrier protects the Series 90-30 CPU from common-mode voltage spikes and electrical noise, ensuring that high-voltage transients in the field do not disrupt the control logic.

Precise Conversion and Linearity

With a linearity rating of less than 1 LSB and resolutions as fine as 2.5 mV, the IC693ALG222 provides highly faithful representations of analog field conditions. The internal hardware-based filtering (41 Hz or 82 Hz) ensures that readings remain stable, effectively rejecting high-frequency noise common in industrial power systems.

Installation & Maintenance

• Wiring Flexibility: The module can be configured for single-ended wiring (16 channels) or differential wiring (8 channels) for improved noise rejection on long cable runs.
• Backplane Power: The module draws power directly from the PLC backplane. Ensure the power supply module has sufficient capacity for this 0.35 kg unit alongside other I/O.
• Maintenance: Status LEDs on the front panel provide instant diagnostics, indicating the health of the module and the status of the field-side power.

Engineering Advantages

The IC693ALG222 is built for industrial durability, maintaining its performance across a wide range of operating conditions. Despite its comprehensive feature set, the module remains lightweight at approximately 0.35 kg, making it easy to handle during installation. Its software-configurable nature means that range selection and scaling can be performed through the programming environment, eliminating the need for manual hardware adjustments.

Technical FAQs

Q1: Can I use both unipolar and bipolar signals on the same module?
A1: The range is typically set for the whole module or in groups depending on the software configuration. Consult the GE Fanuc Series 90-30 manual for specific per-channel range flexibility.

Q2: What is the benefit of the 1500V RMS isolation?
A2: It provides a critical safety layer that prevents high-voltage "noise" or faults from the field wiring from reaching the sensitive digital circuitry of the PLC backplane and CPU.

Q3: Does this module require external 24VDC power?
A3: Yes, like most analog modules in the Series 90-30 line, external user power is required to drive the analog-to-digital conversion circuitry and maintain signal accuracy.