ALLEN BRADLEY 1768-L43S COMPACTLOGIX L43 SAFETY PROCESSOR

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Brand Name                 AB

Product reference     1768-L43S

Allen Bradley CompactLogix L43 additional Processor, 2.0MB Standard capacity of memory, 0.5MB additional capacity of memory Module

The Allen-Bradley 1768-L43S compact GuardLogix controller is a powerful controller module. It provides unmatched scalability and flexibility across applications. This module has a standard memory of 2 MB and a 0.5 MB safety memory. The power dissipation of this module is 4-7.5 W. The operating temperature of this module is 0-60 °C and the storage temperature of the1768-L43S is -4-85 °C. It has a relative humidity of 5-95 % non-condensing. The vibration of this module is 5 g at a frequency of 10-500 Hz. The operating and nonoperating shock of this module are 30 g and 50 g respectively. This module has a radiated RF immunity of 10V/m with 1 kHz sine-wave 80% AM from 80-2000 MHz.

The 1768-L43S is ideal for controllable systems on EtherNet/IP™ or ControlNet™. This module functions well in an economical platform and it has rackless input and output to simplify the installation. The 1768-L43S controller has security controls and fully-integrated motion. If you connect or disconnect the serial cable with the power supplied to this module or serial device at the end of the cable, an electric arc may occur. Be sure to remove the power first.

European Hazardous Location Approval Consider the following if you install a 1768-L43S or 1768-L45S controller in a European Zone 2 location. General Safety Information for 1768-L43S and 1768-L45S Controllers European Zone 2 Certification (The following applies when the product bears the EX marking.) This equipment is intended for use in potentially explosive atmospheres as defined by European Union Directive 94/9/EC and has been found to comply with the Essential Health and Safety Requirements relating to the design and construction of Category 3 equipment intended for use in Zone 2 potentially explosive atmospheres, given in Annex II to this Directive. Compliance with the Essential Health and Safety Requirements has been assured by compliance with EN 60079-15 and EN 60079-0.

Attempting to use controllers with incompatible software and firmware revisions may result in: • an inability to connect to the series B controller in RSLogix 5000 software. • unsuccessful firmware upgrades in ControlFlash or AutoFlash utilities.

Required System Components You need these parts when installing your controller: • 1768-L43, 1768-L43S, 1768-L45, or 1768-L45S CompactLogix controller • 1768-PA3 or 1768-PB3 power supply • 1769-ECR end cap • Mounting screws (M4 or #8 panhead) or one of these EN 50 022 DIN rails: – 35 x 7.5 mm (1.38 x 0.30 in.) – 35 x 15 mm (1.38 x 0.59 in.) • 1756-CP3 serial cable (or make your own) Clearance Requirements Allow for the minimum clearance from enclosure walls, wireways, and other equipment.

T CompactLogix System Distance Ratings Because the 1768 CompactLogix power supply works with the controller to power a 1768 system, the distance rating in a 1768 CompactLogix system differs from that in a 1769 CompactLogix system. In the 1768 system, the distance rating is the distance between 1769 I/O modules and the controller. In the 1769 system, the distance rating is the distance between 1769 I/O modules and the power supply.

Follow these requirements to determine proper placement of your 1768 controller, power supply, 1768 I/O modules, and 1769 I/O modules: • Place the 1768-L4xx controller so that it is the last module (furthest away from the power supply) in the 1768 backplane. • The 1768 CompactLogix power supply distributes power from the right side of the supply and must be the leftmost module in the system. • Up to eight 1769 I/O modules can reside in the local bank. • The local bank is powered by a 1768 power supply. • Up to two remote banks of 1769 I/O modules may be connected by using 1769-CRLx extension cables. • Remote banks are powered by a standard 1769 power supply. 

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