Compact GuardLogix Controller Allen-Bradley 1768-L45S SIL 3

Product Overview

The 1768-L45S is a Compact GuardLogix controller from Allen-Bradley. It combines standard automation with integrated safety. This controller meets SIL 3 and PL e requirements. It uses a 1oo2 safety architecture. The device has 3 MB of standard memory. It also includes 1 MB of dedicated safety memory. This model supports up to thirty I/O modules. These modules spread across three banks. The controller works with two 1768 communication modules. It is ideal for machine safety applications.

Application Scenarios

Use the 1768-L45S in packaging lines. It fits robotic cell control. Apply it in material handling systems. It works well in process safety interlocks. The controller handles emergency stop functions. It manages safety light curtains effectively. This device suits automotive assembly stations. It also works in food processing equipment.

Technical Specifications

The 1768-L45S draws 2.1 amps at 24 volts. Power consumption is 50.4 watts. Power dissipation is 9.5 watts. Enclosure type is open. Isolation voltage is 30 volts continuous. Shipping weight is 0.45 kg. Module type is processor with safety. Memory includes 3 MB standard and 1 MB safety. Local I/O modules support four 1768 units. Expansion I/O supports up to thirty 1769 modules. Expansion banks allow up to three. Dimensions are 131.6 x 90 x 121.8 mm. Operating temperature range is 0 to 60°C. Non-operating temperature is -40 to 85°C. Relative humidity range is 5 to 95%. It withstands 5g vibration at 10-500 Hz. Operating shock is 30g. Non-operating shock is 50g.

Installation & Maintenance Guide

Mount the controller on a DIN rail or panel. Maintain 105 mm clearance above and below. Keep 90 mm clearance on left and right sides. These clearances ensure proper airflow. Operating temperature must stay between 0-60°C. Use climate control devices if needed. Connect the RS232 port at 38.4 Kbps max. Use a 1784-CF128 CompactFlash card for memory. Always follow safe wiring practices. Test isolated ports at 500V DC for 6 seconds. Use only Allen-Bradley approved cables.

Packing List

One 1768-L45S Compact GuardLogix controller. One product documentation CD. One RS232 communication cable. Mounting hardware kit. Product is shipped in a protective box. Shipping methods include FedEx, UPS, or DHL.