Allen-Bradley 1768-L45S CompactGuardLogix Controller SIL 3

Product Overview

The Allen-Bradley 1768-L45S is a CompactGuardLogix controller. It integrates standard automation with safety features. This controller meets SIL 3 and PLe requirements. It uses a 1oo2 safety architecture. The device has 3 MB of standard memory. It also includes 1 MB of safety memory. The 1768-L45S supports up to 30 I/O modules. These modules can be in three expansion banks. It also supports two 1768 communication modules. This controller offers reliable safety and standard control. It is ideal for complex machine safety.

Application Scenarios

This controller works in many safety-critical applications. Use it in packaging machinery and robotics. It is suitable for conveyor systems and presses. It also fits in material handling equipment. The 1768-L45S can manage both safety and standard tasks. It supports SIL 3 and PLe performance levels. This makes it perfect for high-risk environments. Install it in automotive and pharmaceutical industries. It also works well in food processing plants.

Technical Specifications

The 1768-L45S has 3 MB standard memory. It includes 1 MB safety memory. It draws 2.1 A backplane current at 24 V DC. Power consumption is 50.4 watts. Power dissipation is 9.5 watts. Isolation voltage is 30 V DC continuous. Dimensions are 131.6 x 90 x 121.8 mm. Weight is 0.45 kg. Operating temperature is 0 to 60 degrees Celsius. Non-operating temperature is -40 to 85 degrees Celsius. It supports 5 to 95 percent relative humidity. Vibration resistance is 5g at 10 to 500 Hz. Shock resistance is 30 g operating and 50 g non-operating.

Installation & Maintenance Guide

Mount the controller on a DIN rail or panel. Keep clearances of 105 mm top and bottom. Leave 90 mm clearance on each side. Use a 1784-CF128 CompactFlash card for memory. Connect communication modules as needed. Use shielded cables for RS-232 ports. Ensure proper airflow with fans or heaters. Test the system after installation. Update firmware via the CompactFlash card. Follow Rockwell Automation guidelines for safety.

Packing List

One Allen-Bradley 1768-L45S controller. One installation manual. One CompactFlash card (if ordered). Not included: communication modules, I/O modules, cables. Shipping is via FedEx, UPS, or DHL. All items are securely packed for safe delivery.