The part number 445L-103742 is a safety relay from Allen-Bradley, a brand of Rockwell Automation. This safety relay is part of the GuardShield Micro 400 Safety Light Curtain system, which is designed to provide a safe and reliable way to detect the presence or absence of a person or object in a specific area. The system consists of a transmitter and receiver pair that are connected by a light beam, which is interrupted when an object enters the protected area. This interruption triggers a safety response, such as stopping a machine or alerting operators.
Technical Specifications
- Lengths: The system is available in three lengths: 3 m, 5 m, and non-standard lengths that can be cascaded to achieve longer ranges.
- Resolution: The system offers a resolution of 14 mm (0.55 in.) for the protective device, which is the distance between the transmitter and receiver.
- Response Time: The response time of the safety light curtain is 12-42 ms, depending on the protective height and resolution.
- Operating Range: The system operates within a range of 0-9 m (0-29.53 ft) with a 30 mm (1.18 in.) resolution, and is tolerant to dust and pollution.
- Safety Ratings: The GuardShield Micro 400 Safety Light Curtain has a safety classification of Type 4 per IEC/EN 61496 and Category 4 device per EN 13849-1, with a probability of a dangerous failure per hour (PFH) of 6.0 E-9.
Alarm/Error Codes
The system does not provide specific alarm or error codes. However, it does have built-in diagnostic status indicators that can help identify any issues with the system.
User Manuals
The user manual for the GuardShield Micro 400 Safety Light Curtain is available in the form of a publication titled "GuardShield Safe 4 and Safe 4 PAC Safety Light Curtains User Manual" (Publication Number 445L-UM001E-EN-P).
Troubleshooting
Troubleshooting for the GuardShield Micro 400 Safety Light Curtain involves checking the system's connections, ensuring that the light beam is not interrupted, and verifying that the system is properly configured and installed. The user manual provides detailed instructions for troubleshooting and maintenance.
Programming
The system does not require programming. It is designed to operate automatically based on the presence or absence of an object in the protected area.
Installation
The installation of the GuardShield Micro 400 Safety Light Curtain involves mounting the transmitter and receiver units in the desired locations, connecting them with a light beam, and ensuring that the system is properly powered and configured. The user manual provides detailed instructions for installation.
Additional Information
The system is designed to be easy to install and maintain, with no electrical cable needed between the transmitter and receiver. It also features short-circuit protected semiconductor outputs and is built with a focus on safety and reliability.