Description

The General Electric IC670ALG320 is a high-performance Field Control Analog Output Module designed for distributed control and I/O applications. This module features four grouped current and voltage analog output channels capable of providing simultaneous current and voltage signals from each D/A converter. It supports flexible output configurations, including 4 to 20 mA and 0 to 20 mA current spans, as well as 0 to 10 V and 0 to 12.5 V voltage spans, easily selectable via jumper placement on the corresponding I/O Terminal Block.

Engineered for seamless integration within the General Electric Field Control architecture, the IC670ALG320 requires a Bus Interface Unit (BIU) to communicate output data to the host processor. It includes a built-in LED indicator visible through the transparent module top to verify correct field and backplane power status. With robust 12-bit digital resolution and built-in transient protection, this module ensures accurate and reliable signal generation for demanding industrial automation environments.

Features

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• Four grouped analog output channels supporting simultaneous current and voltage outputs
• Configurable current output ranges of 0 to 20 mA and 4 to 20 mA
• Configurable voltage output ranges of 0 to 10 V and 0 to 12.5 V via terminal jumpers
• Standard 12-bit digital resolution with 4-word (8-byte) analog output data mapping
• Integrated open-wire diagnostic monitoring functionality on current output channels
• Robust optical and electrical isolation rated at 1500 VAC for 1 minute to ground and logic
• Front-panel status LED for quick verification of field and backplane power

Applications

• Distributed process control systems
• Analog actuator and valve positioning
• Interfacing with chart recorders and analog meters
• Industrial manufacturing and assembly lines
• Data acquisition and remote telemetry units

Technical Specifications

Connections / Interfaces

The IC670ALG320 module interfaces with the system via a compatible Bus Interface Unit and mounts onto an appropriate I/O Terminal Block (such as box terminal, barrier terminal, or wire-to-board connector variants). Field wiring should utilize instrumentation-grade shielded twisted-pair or triad cable with shields grounded at a local panel ground near the module to ensure optimal noise immunity.

Installation Guidelines

• Ensure all power supplies are turned off before installing or removing the module and terminal blocks.
• Verify that the correct wire jumpers are installed between the JMP and RET terminals on the I/O Terminal Block when utilizing 0 to 20 mA or 0 to 12.5 V ranges.
• Ground the module chassis using the chassis ground terminal on the module base for superior electromagnetic interference (EMI) protection.
• Maintain recommended wire gauges (AWG #14 to AWG #22) depending on the selected terminal block type.