Controller Allen-Bradley 1768-L43S Compact GuardLogix

Product Overview

The 1768-L43S is a compact GuardLogix controller from Allen-Bradley. It offers unmatched scalability and flexibility. This controller has a standard memory of 2 MB. It also includes 0.5 MB of safety memory. Power dissipation ranges from 4 to 7.5 W. The module operates from 0 to 60 degrees Celsius. It stores safely at -4 to 85 degrees Celsius. Relative humidity tolerance is 5 to 95% non-condensing. Vibration resistance is 5 g at 10 to 500 Hertz. Operating shock is 30 g, and non-operating shock is 50 g. Radiated RF immunity is 10 V/m with 1 kHz sine-wave 80% AM from 80 to 2000 MHz. This controller works well on EtherNet/IP or ControlNet networks. It uses a rackless I/O design for simple installation. Security controls and integrated motion are fully supported.

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Application Scenarios

Use the 1768-L43S in safety-critical machine control systems. It fits packaging, material handling, and assembly lines. The controller manages both standard and safety tasks. It supports distributed I/O over industrial networks. Applications include robotic cells, conveyor systems, and process safety. The compact size saves cabinet space. The controller is ideal for standalone or coordinated systems. It works in harsh industrial environments with high vibration and shock.

Technical Specifications

• Memory: 2 MB standard, 0.5 MB safety
• Weight: 15.9 ounces (0.45 kg)
• Dimensions (HxWxD): 5.18 x 3.55 x 4.8 inches
• Isolation Voltage: 30 Volts continuous
• Backplane Current: 1.4 Amps at 24 Volts
• Power Consumption: 33.6 Watts
• Power Dissipation: 4 to 7.5 Watts
• Operating Temperature: 0 to 60 °C
• Storage Temperature: -4 to 85 °C
• Humidity: 5 to 95% non-condensing
• Vibration: 5 g at 10-500 Hz
• Shock: 30 g operating, 50 g non-operating
• RF Immunity: 10 V/m, 80-2000 MHz

Installation & Maintenance Guide

Remove power before connecting or disconnecting serial cables. Use proper ESD precautions. Mount the controller on a DIN rail or panel. Ensure adequate airflow for cooling. Do not exceed the backplane current rating. Connect communication cables securely. Regularly check for firmware updates. Clean the module with a dry cloth only. Avoid condensation and extreme temperatures. Always follow local electrical codes.

Packing List

• 1 x 1768-L43S Controller Module
• Product documentation