In today's fast-paced industrial environments, ensuring the safety of workers and machinery is paramount. One technology that has revolutionized safety in various sectors is light curtains. These advanced optical devices are designed to detect and measure objects within a defined detection field, acting as a barrier that safeguards personnel and equipment.

Light curtains consist of multiple through-beam sensors arranged across a detection or measuring field. These sensors can be interlinked for basic object detection or evaluated individually for more advanced measurements. In essence, light curtains provide a non-intrusive way to monitor industrial processes, ensuring that machinery halts when an object or person enters a designated area, thereby preventing accidents.

There are two primary types of light curtains: Switching Light Curtains and Measuring Light Curtains. Each type is tailored to meet specific safety and operational needs.

1. LA Switching Light Curtains: Optimized for Object Detection

The LA switching light curtains are specifically designed for object detection. They are ideal for simpler applications where cost-efficiency and ease of integration are priorities. Their slim construction allows them to fit into tight spaces, and their integrated switching outputs make commissioning quick and straightforward. These devices can be seamlessly integrated into existing setups, providing reliable protection without the need for complex configurations.

Key Features:

• Cost-effective solution for basic applications
• Slim, space-saving design
• Quick and easy commissioning
• Integrated switching outputs

2. LI Measuring Light Curtains: Precision for Complex Tasks

For more challenging detection and measuring tasks, LI measuring light curtains are the go-to solution. These light curtains offer high resolution and fast response times, making them suitable for applications that demand precise measurements, such as quality control or positioning systems. Their slim construction ensures that they can be easily integrated into industrial setups, even in confined spaces.

Key Features:

• High-resolution measurement capabilities
• Short response time for rapid detection
• Slim design for easy integration into complex environments

Advanced Evaluation Electronics for LI Series

One or two LI measuring light curtains can be connected to evaluation units designed for the LI series. These evaluation units are mounted on standard tophat rails, facilitating easy installation in industrial environments. Moreover, the evaluation electronics allow for quick integration into fieldbus environments, providing real-time data for precise control and monitoring.

Applications of Light Curtains in Industries

Light curtains are widely used in various industrial settings, such as:

• Machine guarding: Ensuring machines automatically stop when an operator enters a hazardous zone.
• Packaging lines: Preventing damage to goods by ensuring that objects are detected at specific points.
• Quality control: Measuring dimensions of products to ensure they meet specifications.
• Automotive assembly lines: Protecting workers and machinery by detecting the presence of parts or people in dangerous areas.