03 - GuardLink vs Hardwired Safety Devices

Summary

The video script discusses the Garden Link product's ability to achieve higher safety levels, overcoming the limitations of EN ISO 14119 standards that prevent series-wired devices from reaching the highest levels of machinery safety due to fault masking. It highlights the advantages of using Guard Link for series wiring to eliminate fault masking and achieve PLE (Performance Level 'e'). The script also compares hardwired systems with Guard Link systems, emphasizing the latter's reduced response time and increased efficiency. Benefits include reduced wiring effort, cost savings, and remote control capabilities for lock, unlock, and reset, which streamline machinery access and troubleshooting.

Takeaways

• 🔒 The Garden Link product can achieve a higher level of safety in machinery by addressing recent changes in standards like EN ISO 14119.
• 🚫 The new standards prevent series wiring from achieving the highest levels of machinery safety due to potential fault masking issues.
• 🛠️ Guard Link technology allows for wiring multiple devices in series, eliminating the risk of fault masking and enabling higher diagnostic coverage.
• 🔄 The use of Guard Link can help achieve Performance Level E (PLE) by standardizing the approach, making it easier compared to individually wiring and monitoring each device.
• ⏱️ Response time in safety systems can be significantly impacted by the number of devices wired in series, with each additional device adding to the delay.
• 🔗 A hardwired approach with multiple Guard Series devices in series can lead to a cumulative response time that may be too slow for motion applications.
• 🚀 Implementing a Guard Link system can reduce response time, allowing machines to be back in production faster and stopping them more quickly from a safety perspective.
• 🔌 The reduction in wiring with Guard Link is substantial, making installation easier and more efficient with plug-and-play M12 connectors.
• 💰 There are cost benefits to using Guard Link, particularly in terms of reducing the need for individual wiring and monitoring of each safety device.
• 🔄 Guard Link also supports remote-controlled lock, unlock, and reset functions, facilitating faster machinery access and troubleshooting.

Q & A

What is the main challenge with achieving high levels of machinery safety according to the EN ISO 14119 standard?

The main challenge is the potential for fault masking when wiring multiple safety devices in series, which prevents achieving the required diagnostic coverage for Performance Level 'e' (PL 'e').

How does Guard Link technology address the issue of fault masking in safety systems?

Guard Link technology allows for the wiring of multiple devices in series without the risk of fault masking, enabling the achievement of higher safety levels such as PL 'e'.

What is the Performance Level 'e' (PLE) and why is it significant in safety systems?

Performance Level 'e' (PLE) is the highest level of safety that can be achieved in machinery safety standards. It is significant as it represents the highest level of risk reduction and safety assurance.

Why might a company choose to standardize on a PLE type solution?

A company might choose to standardize on a PLE type solution for ease of implementation, as it simplifies the wiring process and allows for consistent safety levels across different systems.

What is the impact of using a hardwired approach with a sense of guard series on system response time?

Using a hardwired approach with a sense of guard series can significantly increase the system response time due to the cumulative response times of each device in the series.

How does a Guard Link system reduce the response time compared to a hardwired system?

A Guard Link system reduces response time by eliminating the need for each device's individual response time to be considered, resulting in a faster overall system response.

What are the benefits of using M12 connectors in a safety system?

M12 connectors offer plug-and-play functionality, which simplifies installation, reduces wiring effort by 20 to 38 percent, and increases the efficiency of daisy chain implementations.

How does the Guard Link system improve machine productivity from a safety perspective?

The Guard Link system improves machine productivity by reducing the time it takes for a machine to stop and start again from a safety perspective, allowing for faster machine recovery and production.

What is the advantage of remote-controlled lock, unlock, and reset functionality in a safety system?

Remote-controlled lock, unlock, and reset functionality allows for faster machine access and shorter troubleshooting times, enhancing overall system efficiency and safety.

Why is the reduction in wiring effort significant in the context of safety systems?

The reduction in wiring effort is significant as it not only simplifies the installation process but also minimizes potential points of failure, leading to a more reliable and safer system.

How does the Guard Link system compare to a traditional hardwired system in terms of installation and maintenance?

The Guard Link system simplifies installation and maintenance due to its plug-and-play connectors and reduced wiring requirements, leading to lower costs and improved efficiency compared to traditional hardwired systems.