GE IC693ALG221 IC693ALG221J Analog Current Input Module

Overview

The GE IC693ALG221 is a 4-channel analog current input module for the GE Fanuc Series 90-30 PLC. It accurately converts industrial current signals into precise digital values, enabling dependable process control and monitoring. Designed for reliability and versatility, this module supports both 0–20 mA and 4–20 mA input ranges, ensuring seamless integration with transmitters, sensors, and other analog field devices.

This module helps engineers achieve stable data acquisition in applications where accuracy, fast response, and robust electrical isolation are crucial. Moreover, its modular design simplifies installation and system expansion within the Series 90-30 platform.

Key Features and Functional Highlights

• High-Precision Input Conversion: 12-bit resolution provides detailed current signal measurement.

• Flexible Input Ranges: Accepts both 0–20 mA and 4–20 mA inputs for broad compatibility.

• Reliable Electrical Isolation: 1500 V RMS isolation between field and logic sides improves safety.

• Fast Update Rate: Ensures quick and accurate data collection at up to 2 ms for all channels.

• Compact and Durable Design: Engineered for industrial reliability with consistent performance from 0°C to 60°C.

• Diagnostic Capability: Detects over-range and under-range conditions for improved system reliability.

Technical Specifications

Typical Applications

The GE IC693ALG221 is widely used in process automation, machine control, and industrial data acquisition systems. Engineers deploy it for monitoring flow, pressure, temperature, or level signals transmitted via analog sensors. In addition, it integrates easily within factory automation, energy management, and infrastructure control systems, ensuring precise current measurement in demanding environments.

Reliability and Service

GE Fanuc designed this module to meet industrial-grade reliability standards. It operates continuously under harsh electrical and thermal conditions without calibration drift. Users can extend the system’s lifecycle through regular maintenance and periodic diagnostics, supported by GE’s global service network.

FAQ

Q1: What input ranges does the IC693ALG221 support?
It supports both 0–20 mA and 4–20 mA input signal ranges.

Q2: Does the module provide electrical isolation?
Yes, it provides 1500 V RMS isolation between the field and logic sides.

Q3: How many input channels are available?
The module includes four single-ended analog input channels.

Q4: What is the resolution of this analog input module?
It offers 12-bit resolution, enabling precise current signal conversion.

Q5: Is the IC693ALG221 still in production?
No, this module is classified as discontinued or mature but remains supported in many existing GE Fanuc systems.