General Electric IC670ALG630 Thermocouple Input Module

Overview

The General Electric IC670ALG630 Thermocouple Input Module is an 8‑channel temperature‑measurement module designed for FANUC Genius I/O systems. It supports multiple thermocouple types and offers high‑precision analog‑to‑digital conversion for demanding industrial automation and process‑control environments.

Functional Design

The GE IC670ALG630 provides flexible configuration options, allowing each channel to be set for direct millivolt measurement or temperature conversion in tenths of °C/°F. Its advanced cold‑junction compensation ensures stable readings across varying ambient conditions, while open‑circuit detection improves fault visibility and system reliability.

A solid‑state, optically‑coupled multiplexer feeds a high‑resolution 15‑bit ADC (plus sign bit), delivering accurate and repeatable measurements. When configured for millivolt mode, the module achieves a resolution of 0.01 mV, making it suitable for low‑voltage sensing applications.

A built‑in microprocessor continuously monitors for out‑of‑range conditions, thermocouple faults, and wiring issues. As part of the Genius Bus architecture, the IC670ALG630 integrates seamlessly with Bus Interface Modules for efficient distributed I/O communication.

Technical Specifications

Key Parameters

Additional Technical Notes

• The IC670ALG630 supports multiple thermocouple types for broad application coverage.

• Optically isolated multiplexer circuitry improves noise immunity.

• Built‑in diagnostics enhance reliability in critical temperature‑control systems.

• Ideal for process control, manufacturing, and distributed automation.

Applications and Compatibility

The General Electric IC670ALG630 is used in industrial temperature‑monitoring systems, process‑control environments, and manufacturing lines requiring precise thermocouple measurement. It integrates with FANUC Genius I/O networks and GE distributed control architectures.