GE Fanuc IC693ALG221 Analog Current Input Module

Product Overview

The IC693ALG221 is a high-performance Analog Current Input Module with four input channels, designed for use with the GE Fanuc Series 90-30 Programmable Logic Controller (PLC). It is commonly used to convert analog current signals into digital data for processing by the PLC in industrial control and automation systems.

This module supports two selectable current input ranges—4 to 20 mA (default) and 0 to 20 mA—with a resolution suitable for precise analog signal interpretation.

Key Features

• Four Input Channels:
  Each channel independently converts analog signals into digital signals usable by the controller.

• Selectable Input Ranges:

• Default range: 4–20 mA, where 4 mA = 0 counts and 20 mA = 32,000 counts (1000 counts = 0.5 mA).

• Alternate range: 0–20 mA, set via jumper on the I/O terminal board. In this configuration, 0 mA = 0 counts and 20 mA = 32,000 counts (800 counts = 0.5 mA).

• Range Jumpers:

• Jumper 1: Channels 1 & 2

• Jumper 2: Channels 3 & 4

• High-Speed Performance:

• Conversion time per channel: 0.5 milliseconds

• Update rate for all 4 channels: 2 milliseconds

• High Accuracy & Resolution:

• 12-bit resolution for both input ranges

• Factory-calibrated to 4 µA per count

• Accuracy: ±0.1% of full scale

• Input Protection:
  Tolerant of common mode voltages up to 200V, allowing for reduced performance operation in harsh environments.

• Electrical Isolation:
  Built-in isolation circuitry protects the PLC from external noise. Use of twisted, shielded instrumentation cable with COM/GND is recommended.

• Diagnostics & Indicators:
  Includes an LED status indicator to monitor the module’s power supply condition.

Technical Specifications

Installation & Integration

The IC693ALG221 module is compatible with any GE Fanuc Series 90-30 PLC rack that supports analog input modules. It draws its operating power directly from the PLC’s internal power supply and connects easily using standard field wiring. Each input channel is individually labeled (1 to 4), and configuration is simple via the two onboard range jumpers.