Introduction

The GE IC693ALG391F Series 90-30 Analog Current Output Module is a high-performance analog output solution designed for industrial automation applications requiring accurate and stable current-loop control. Featuring two independent output channels, this module converts PLC-generated digital values into reliable analog current signals for process equipment and automation devices.

Built for the proven Series 90-30 platform, the IC693ALG391F delivers flexible output configuration, fast signal updates, and dependable electrical isolation. It is widely suited for applications involving process regulation, actuator positioning, and industrial equipment control where consistent analog performance is essential.

With its compact PLC rack integration and compatibility with established GE automation architectures, the IC693ALG391F remains a practical choice for system expansion, maintenance replacement, and long-term support of existing industrial installations.

Technical Specifications

Specification	Description
Manufacturer	GE Fanuc / Emerson
Model	IC693ALG391F
Product Type	Analog Current Output Module
Product Family	Series 90-30
Number of Outputs	2 Channels
Output Type	Analog Current
Output Range	0–20 mA / 4–20 mA
Resolution	12-bit Binary
Update Rate	5 ms (Both Channels)
Calibration	Factory Calibrated
Output Type	Current Source Driver
External Supply Voltage	20–30 VDC
Nominal Supply Voltage	24 VDC
Maximum Output Load	5 mA
Backplane Power Consumption	30 mA @ 5 VDC
User Supply Consumption	215 mA @ 24 VDC
Isolation	1500 VAC Field-to-Logic
Output Mode	Hold Last State / Default Output
Mounting Type	Series 90-30 Baseplate
Operating Temperature	0°C to +60°C
Dimensions	Approx. 112 × 130 × 40 mm
Weight	Approx. 0.45 kg

Recommended Companion Models

Model	Product Name
IC693CPU374	Series 90-30 Ethernet CPU Module
IC693PWR330H	Series 90-30 High Capacity Power Supply Module
IC693CHS391K	Series 90-30 10-Slot CPU Baseplate
IC693ALG223C	Series 90-30 Analog Current Input Module

Frequently Selected Alternatives

Model	Product Name
IC693ALG390F	Series 90-30 Analog Voltage Output Module
IC693ALG392	Series 90-30 Analog Current/Voltage Output Module
IC693ALG442B	Series 90-30 Analog Combination I/O Module
IC200ALG321B	VersaMax Analog Voltage Output Module

Where It Excels in Industrial Use

GE Series 90-30 PLC analog current control applications
Industrial process regulation and closed-loop control systems
Control valve, actuator, and positioner applications
Variable frequency drive speed reference control
Chemical, water treatment, and manufacturing automation systems
SCADA systems requiring stable analog signal transmission
OEM machinery requiring precise current-loop outputs
Continuous production process monitoring and adjustment
Legacy GE Fanuc Series 90-30 system upgrades
Industrial equipment requiring dependable 4–20 mA control signals

Key Strengths at a Glance

2-channel analog current output capability
Supports 0–20 mA and 4–20 mA current ranges
12-bit digital-to-analog conversion accuracy
5 ms update rate for both output channels
Factory-calibrated output performance
Supports Hold Last State and Default Output modes
Provides isolated field-to-logic protection
Compatible with Series 90-30 PLC baseplate systems
Supports external 24 VDC user power supply
Reliable current source operation for industrial devices

Technical FAQs

1. What is the main function of the GE IC693ALG391F?

The IC693ALG391F is a Series 90-30 analog current output module that converts PLC digital values into analog current signals for controlling industrial field devices such as valves, drives, and actuators.

2. How many output channels does the IC693ALG391F provide?

The module provides two independent analog current output channels, allowing two separate devices to receive PLC-controlled current signals simultaneously.

3. Which current output ranges are supported?

The module supports standard industrial current ranges including 0–20 mA and 4–20 mA, making it suitable for common process instrumentation applications.

4. What resolution does the IC693ALG391F use?

The module uses a 12-bit digital-to-analog converter, providing precise conversion from PLC digital data to analog current output values.

5. What types of devices can be connected to the outputs?

Typical applications include proportional valves, motor drives, I/P converters, analog controllers, signal indicators, and industrial actuators requiring current-loop control.

6. How fast are the analog outputs updated?

Both output channels are updated approximately every 5 milliseconds, providing responsive control for industrial applications.

7. Does the module require external power?

The IC693ALG391F can use isolated +24 VDC power from the PLC system or an external 20–30 VDC user supply to maintain output operation.

8. What happens if the PLC CPU enters STOP mode?

The module can be configured to either maintain the previous output value (Hold Last State) or switch to a predefined default output condition.

9. Is the output electrically isolated?

Yes. The module provides field-side isolation from PLC logic circuits, improving noise immunity and helping protect control electronics in industrial environments.