GE Fanuc IC200ALG326 Analog Output Module 8 Channels

IC200ALG326 GE Fanuc 4-20 mA Current Output

Product Introduction

The GE Fanuc IC200ALG326 is an 8-channel analog current output module from the VersaMax I/O family. This module provides eight single-ended current-sourcing outputs, defaulting to the standard 4-20 mA range with an optional 0-20 mA configuration via jumper settings. Specifically, it offers 15-bit resolution, delivering exceptional precision for demanding process control applications. Therefore, the IC200ALG326 excels in scenarios such as valve positioning, variable frequency drive control, and signal retransmission to panel meters or data loggers. Additionally, its diagnostic tools, configurable output defaults, and hot insertion capability enhance system flexibility and uptime.

Technical Specifications

This section details the core capabilities of the IC200ALG326. First, it features eight analog current-sourcing outputs, arranged in a single group without requiring isolation between channels. The default output range is 4-20 mA, which is the industry standard for process control. Alternatively, you can configure the module for 0-20 mA by adjusting an internal jumper, accommodating devices that require a zero-based signal. Furthermore, the 15-bit resolution provides extremely fine current steps, enabling highly accurate control of field devices.

Moreover, the IC200ALG326 achieves a maximum update rate of 15 ms, ensuring timely response in dynamic control loops. The module operates with an external power supply range of 18 to 30 VDC. Its current consumption varies depending on the load: it draws 100 mA maximum with no outputs loaded, and 185 mA when all eight outputs operate at full scale. Additionally, the inrush current is rated at 2 Amps maximum. The module also consumes 50 mA maximum from the 5V backplane supply, which powers its logic circuits.

For isolation, the IC200ALG326 provides 250 VAC continuous isolation (and 1500 VAC for one minute) between the user input and the logic/frame ground. This robust isolation protects the control system from voltage spikes and ground loops commonly found in industrial environments.

Diagnostics and LED Indicators

The GE Fanuc IC200ALG326 includes two LED indicators for straightforward status monitoring. One LED confirms the presence of backplane power, while the other indicates field-side power availability. Furthermore, the module incorporates comprehensive diagnostic tools that detect loss of user-side power. These diagnostics generate reports for the host CPU, enabling rapid fault identification and preventive maintenance. Additionally, the module supports configurable output defaults. For instance, you can set the outputs to hold their last state or revert to a safe value (such as 4 mA or 0 mA) in case of a CPU stop or module fault. This feature prevents unintended actuator movements during system interruptions, ensuring safe and predictable operation.

Hot Insertion Support

The GE Fanuc IC200ALG326 supports hot insertion, allowing you to replace or add the module while the system remains powered. This feature minimizes downtime during maintenance or system expansion. However, it is crucial to perform the insertion procedure correctly to avoid disrupting the backplane power. Always follow the manufacturer's guidelines for safe hot insertion to protect both the module and the existing system components.

Mechanical and Environmental Parameters

The GE Fanuc IC200ALG326 operates reliably across a temperature range of 0 to 60°C. It withstands humidity levels from 5% to 95% non-condensing. The compact design fits standard VersaMax racks and terminal bases, saving valuable panel space. Additionally, the robust construction resists vibration and shock, ensuring long-term durability in harsh industrial environments. For optimal performance, it is recommended to use shielded cables for all field connections, as this minimizes electromagnetic interference and maintains signal integrity.

Installation Guidelines

Installing the IC200ALG326 is a straightforward procedure. First, power down the backplane or ensure safe hot insertion conditions. Then, mount the module onto a compatible VersaMax terminal base and secure it with the retaining screws. Next, connect your field wiring to the designated terminals, using shielded twisted-pair cables for optimal noise immunity. Depending on your installation, you can connect the cable shield directly or use an interposing terminal block for easier maintenance. Additionally, verify that your external power supply matches the required voltage range (18-30 VDC). After completing all connections, reapply power and observe the LED indicators. The OK LED should light up green, confirming backplane power. Finally, configure the output range (4-20 mA or 0-20 mA) via the internal jumper and set the default behavior through the host CPU or network interface unit.

Packaging List

Your shipment of the GE Fanuc IC200ALG326 includes the following items:

• One IC200ALG326 Analog Output Module

• One product information sheet (quick reference)

Shipping Method: FedEx, UPS, or DHL.

Frequently Asked Questions (FAQ)

Q1: What output ranges does the IC200ALG326 support?
The IC200ALG326 defaults to 4-20 mA, the industry standard for process control. By adjusting an internal jumper, you can also configure it for 0-20 mA to accommodate devices requiring a zero-based signal.

Q2: What is the resolution and update rate of this module?
This module features 15-bit resolution, offering extremely fine current steps for precise control. The maximum update rate is 15 ms, ensuring timely response in dynamic applications.

Q3: Does the IC200ALG326 support hot insertion?
Yes, the IC200ALG326 supports hot insertion, allowing module replacement or addition without powering down the system. However, always follow the proper procedure to avoid disrupting backplane power.

Q4: What happens if the CPU stops or the module faults?
You can configure the output default behavior. The IC200ALG326 can either hold its last output state or revert to a safe value (e.g., 4 mA or 0 mA). This configurable feature ensures safe system operation.

Q5: What are the power requirements for this module?
The output circuits need an external power supply rated for 18-30 VDC. Current consumption is 100 mA with no load and 185 mA with all eight outputs at full scale. The module draws 50 mA from the 5V backplane for its logic circuits.