GE IC670ALG330 | 8-Point Analog Current-Source Output Module

The GE IC670ALG330 is an 8-point analog current-source output module from the Field Control series by GE Fanuc. This module offers reliable control with eight single-ended output channels, each capable of delivering 0-20 mA current signals. It operates with a 16-bit resolution, providing a high-precision output for industrial applications.

Key Features of the GE IC670ALG330

High Precision Output: Provides a 0-20.48 mA current output with 16-bit resolution, delivering precise control signals.
External Power Supply: Requires an external power supply, typically 24 VDC, with a range from 18 VDC to 30 VDC.
Fast Update Time: Features a 1.5 ms typical update time, ensuring quick response times for dynamic control tasks.
Alarm Monitoring: Capable of reporting underrange, overrange, and open wire conditions, ensuring system integrity.
Load Handling: Can drive load capacitance up to 2000 pF and load inductance up to 0.5H.
Compact Design: The module is lightweight at 0.56 lbs (0.26 kg), making it ideal for space-constrained environments.

Technical Specifications

Specification	Value
Manufacturer	GE Fanuc Emerson
Product Type	Output Module
Product Line	Field Control Series
Part Number	IC670ALG330
Weight	0.56 lbs (0.26 kg)
Output Signal Type	Analog Current
Output Signal Range	0 to 20.48 mA
Number of Output Channels	8
Analog Resolution	16 Bits
Conversion Resolution	0.3125 µA per count
Update Time	1.5 ms (typical)
Output Load Capacitance	2000 pF maximum
Output Load Inductance	0.5 H maximum
External Power Supply	18-30 VDC (24 VDC typical)
Current Drawn from External Supply	250 mA maximum (all outputs at 20 mA)
Current Drawn from BIU	85 mA maximum
Isolation Rating	1500 VAC for 1 minute, 250 VAC continuous
Open Wire Output Current Threshold	1.0 mA (minimum), 3.5 mA (maximum)
Linearity	1 LSB resolution value
Operating Temperature	0-55°C
LED Indicators	1 LED for power and status indication
Lifecycle Status	Discontinued / Obsolete

Description

The GE IC670ALG330 is part of GE Fanuc’s Field Control series, specifically designed to handle analog current-source outputs. With eight single-ended output channels, it supports current signals ranging from 0 to 20.48 mA, with a resolution of 16 bits. The module operates with high precision, ideal for controlling industrial processes where accurate signal transmission is crucial.

This module requires an external power supply with a typical value of 24 VDC, ranging from 18 VDC to 30 VDC. It draws 250 mA maximum from the external power supply when all output channels are active at 20 mA, while the Bus Interface Unit (BIU) power draw is 85 mA maximum.

The IC670ALG330 features fast update times of 1.5 ms and supports load capacitance up to 2000 pF and load inductance up to 0.5 H, providing flexibility in various applications. Additionally, it monitors underrange, overrange, and open wire alarms, which helps maintain the reliability of the system by alerting users to faults or abnormalities.

Each channel is capable of handling open wire output currents within a threshold range of 1.0 mA to 3.5 mA, ensuring stability even in fluctuating conditions. The module includes a single LED indicator for easy status monitoring: a steady light indicates normal operation, while flashing or off signals potential errors.

The IC670ALG330 is an excellent choice for applications that demand high-performance analog output control, including systems that require precision data scaling and calibration. Users can reset the module to factory settings via flash memory, which stores all the calibration data for the module.

Applications

The GE IC670ALG330 module is designed for:

Industrial automation systems requiring high-precision analog control signals.
Process control applications where fast and accurate output is critical.
Data transmission systems where the module scales input data from the Bus Interface Unit (BIU) and converts it into a corresponding output current signal.