IC693ALG391B GE FANUK

IC693ALG391B GE Fanuc Power Board

Product  Description：

The GE Fanuc IC693ALG391B is a 2-Channel Analog Current Output module designed for the Series 90-30 Programmable Logic Controller (PLC) system. This module provides two high-resolution output channels capable of converting digital data from the PLC CPU into analog current signals. These signals are typically used to control field devices that require a varying current to adjust their position or state. The "B" version indicates a specific hardware revision, though it maintains the core functionality of the IC693ALG391 series.

Product Specifications

• Module Type: Analog Current Output

• Number of Channels: 2 channels

• Output Current Range: 4 to 20 mA

• Resolution: 12 bits (1 part in 4096)

• Digital Value Range: 0 to 4000 counts

• Accuracy: +/- 0.1% of full scale at 25 degrees Celsius

• Update Rate: 5 milliseconds for both channels

• External Power Requirement: 24 VDC nominal (typically supplied from the PLC power supply or an external source)

• Backplane Power Consumption: 25 mA from the 5V bus

• Output Load Impedance: 0 to 850 Ohms at 24 VDC

• Isolation: User-to-logic (optical) and frame ground

Product Advantages

• High Precision Control: With 12-bit resolution and high accuracy, this module allows for very fine adjustments of field devices, ensuring precise process control in sensitive industrial environments.

• Efficient Communication: The 5ms update rate ensures that changes in the control logic are reflected in the physical process almost instantaneously, which is critical for high-speed automation tasks.

• Optical Isolation: The module features optical isolation between the field wiring and the PLC backplane, protecting the sensitive CPU and other modules from electrical noise, surges, or ground loops in the field.

• Standard Integration: As part of the Series 90-30 family, it integrates seamlessly into the PLC rack and is easily configured using standard GE Fanuc programming software like Proficy Machine Edition or VersaPro.

Important Considerations and Precautions

• External Power Supply: This module requires an external 24 VDC power supply to drive the 4-20 mA current loops. Failure to provide stable power will result in inaccurate outputs or module failure.

• Load Limits: Ensure that the total loop resistance (including wiring and the field device) does not exceed 850 Ohms. If the resistance is too high, the module will be unable to maintain the required 20 mA current.

• Wiring Polarity: Correct polarity must be observed when connecting field devices. Incorrect wiring can lead to device malfunction or damage to the module's output circuits.

• Shielding: It is highly recommended to use shielded twisted-pair cable for all analog signals. The shield should be grounded at only one end (usually the PLC end) to prevent ground loops and minimize electromagnetic interference (EMI).

• Hot Swapping: Do not insert or remove the module from the PLC backplane while the power is turned on. This "hot swapping" can cause electrical arcs that may damage the module or the backplane connector.

Product Applications

The IC693ALG391B is widely used in industries requiring continuous control over mechanical or electrical systems. Common applications include:

• Valves and Actuators: Controlling the percentage of opening for proportional valves in water treatment, oil and gas, or chemical processing.

• Variable Speed Drives: Providing a speed reference signal to AC or DC motor drives to regulate conveyor speeds, fan speeds, or pump flow rates.

• Heater Controls: Adjusting the power output of industrial heaters or furnaces by interfacing with power controllers.

• Paper and Textile Industry: Maintaining tension or thickness control by adjusting the speed of rollers through analog feedback loops.

• HVAC Systems: Controlling dampers and large-scale ventilation equipment to maintain precise environmental conditions.

The structure and details of the product：

Our services：

Shipping Port:  China

Payment: Bank of Chicago, Bank of Singapore

Express cooperation: fedex, DHL, UPS and your express account

Service: Professional Sales provides 24 hours /7 days online service

Warranty: one year

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