Allen-Bradley 1756-LSP ControlLogix GuardLogix Safety Partner

2026-04-20T20:18:15-07:00

Type: Safety Partner Module
Price: 66.00

Product Overview

The Allen-Bradley 1756-LSP functions as the dedicated safety partner for GuardLogix primary controllers. This module provides the necessary redundancy and diagnostic coverage to achieve SIL 3, PLe/Cat. 4 safety ratings within the ControlLogix platform. By operating in tandem with the primary processor, the 1756-LSP executes safety-critical logic, ensuring fail-safe performance for complex industrial applications. We provide this unit in 100% Brand New condition, ensuring maximum lifecycle reliability for your existing safety systems.

Technical Specifications

The following table outlines the core technical parameters for the 1756-LSP safety partner:

Parameter | Specification
Module Type | GuardLogix Safety Partner
Compatibility | Pairs with 1756-L6x GuardLogix Controllers
Communication | ControlLogix Backplane (CBP)
Input Voltage | 24V DC
Current Draw | 1.2A @ 5.1V DC; 0.014A @ 24V DC
Operating Temperature | 0°C to 60°C (32°F to 140°F)

Engineering Advantages

The 1756-LSP solves critical safety bottlenecks in high-speed manufacturing environments through several engineered features:

Seamless Redundancy: The module synchronizes with the primary controller automatically. It monitors safety data without requiring additional complex user programming, reducing the risk of logic errors.

EMI/RFI Resistance: Allen-Bradley designed this module for harsh industrial floors. It maintains data integrity even in environments with high electromagnetic interference from surrounding variable frequency drives (VFDs).

Efficient Backplane Integration: The 1756-LSP eliminates the need for external safety wiring between the partner and the primary CPU. It utilizes the high-speed ControlLogix backplane to ensure near-zero latency for safety trips.

Legacy System Extension: Although the manufacturer transitioned to the 1756-L7SP, our Brand New 1756-LSP units allow you to maintain your current validated SIL 3 architectures without the cost and downtime associated with a full system migration.

FAQs

Can the 1756-LSP function as a standalone controller?

No. The 1756-LSP acts strictly as a co-processor. It requires a compatible GuardLogix primary controller (such as the 1756-L61S, L62S, or L63S) to function.

What is the difference between the 1756-LSP and the 1756-L7SP?

The 1756-L7SP is the newer generation designed for the L7 series controllers. While they perform similar safety functions, you must match the safety partner to its specific controller generation (L6 vs. L7).

Is this unit refurbished or used?

We offer this 1756-LSP as a 100% Brand New product. This ensures the component has its full service life intact and meets all original factory safety certifications.

Does this module require a separate battery?

The 1756-LSP relies on the power and memory management of the primary controller and the backplane; however, we recommend checking the primary controller’s battery status during installation to ensure safety memory retention.