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Description

The Allen-Bradley 1756-L7SP is a ControlLogix GuardLogix Safety Partner module designed for high-integrity safety applications. This module is used in conjunction with a primary ControlLogix controller to achieve SIL 3 and PLe safety ratings, providing the necessary redundancy and diagnostic coverage required for critical safety-instrumented systems. It occupies two slots in a standard ControlLogix chassis.

Features

• Designed for SIL 3 and PLe safety-rated control architectures.
• Functions as a dedicated safety partner for GuardLogix controllers.
• Occupies two slots in the ControlLogix chassis.
• Optimized for high-reliability industrial automation environments.
• Integrated diagnostic monitoring for safety-critical operations.

Technical Specifications

Product Model	1756-L7SP
Series	GuardLogix
Power Dissipation	2.5 W
Thermal Dissipation	8.5 BTU/hr
Backplane Current (5.1V DC)	5 mA
Backplane Current (24V DC)	800 mA
Module Width	2 Slots

Installation Guidelines

• Ensure the ControlLogix chassis is powered down before inserting or removing the 1756-L7SP module to prevent electrical damage.
• The module must be installed in a compatible ControlLogix chassis; ensure it is fully seated and the top and bottom latches are secured.
• Maintain adequate ventilation within the cabinet to ensure the module operates within its thermal limits.
• Follow standard ESD (Electrostatic Discharge) precautions when handling the module to prevent damage to internal circuitry.
• Ensure all safety-related wiring is routed according to local electrical codes and the specific safety system design documentation.

FAQ

What is the primary function of the 1756-L7SP?

The 1756-L7SP acts as a safety partner module within the GuardLogix system, enabling the controller to meet SIL 3 and PLe safety requirements by providing the necessary redundant processing capabilities.

How many slots does this module require?

This module occupies two slots in a standard ControlLogix chassis.

Is this module compatible with standard ControlLogix controllers?

The 1756-L7SP is specifically designed for use in GuardLogix safety systems. It must be paired with a compatible safety-rated controller to function as intended in a safety-instrumented system.

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