03 - GuardLink vs Hardwired Safety Devices
Summary
TLDRThe 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
- π The Garden Link product can achieve a higher level of safety in machinery by addressing recent changes in standards like EN ISO 14119.
- π« The new standards prevent series wiring from achieving the highest levels of machinery safety due to potential fault masking issues.
- π οΈ Guard Link technology allows for wiring multiple devices in series, eliminating the risk of fault masking and enabling higher diagnostic coverage.
- π 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.
- β±οΈ 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.
- π 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.
- π 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.
- π The reduction in wiring with Guard Link is substantial, making installation easier and more efficient with plug-and-play M12 connectors.
- π° There are cost benefits to using Guard Link, particularly in terms of reducing the need for individual wiring and monitoring of each safety device.
- π 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.
Outlines
π Wiring for Enhanced Machine Safety
This paragraph discusses the challenges in achieving high levels of machinery safety due to recent changes in standards like EN ISO 14119. The new standards prevent series wiring from achieving the highest levels of safety due to potential fault masking. The solution proposed is using Guard Link, which allows for wiring multiple devices in series without fault masking, thus achieving the necessary diagnostic coverage for PLE (Performance Level E). The paragraph also highlights the benefits of PLE in terms of standardization and the advantages of using Guard Link, such as reduced wiring, faster response times, and increased efficiency in daisy chain implementations. The comparison between a hardwired system and a Guard Link system shows significant improvements in response time and installation efficiency.
Mindmap
Keywords
π‘Safety
π‘EN ISO 14119
π‘Fault Masking
π‘Guard Link
π‘PLE (Performance Level)
π‘Response Time
π‘Hardwired Approach
π‘Daisy Chaining
π‘M12 Connector
π‘Remote Control
π‘Troubleshooting
Highlights
Garden link product can achieve higher levels of safety by adhering to recent changes in standards such as EN ISO 14119.
Series wiring is prevented from achieving the highest levels of machinery safety due to potential fault masking issues.
Diagnostic coverage necessary for PLE (Performance Level E) cannot be achieved with multiple devices wired in series.
Guard link technology eliminates fault masking, allowing for multiple devices to be wired in series without compromising safety.
PLE type solutions are sought by customers for standardization, simplifying the wiring process.
Standardization with PLE reduces the need for independent wiring and monitoring of each device.
A hardwired approach with Sense Guard series can lead to increased response times due to the sequential nature of the devices.
The system response time in a hardwired setup can be significantly longer, impacting motion type applications.
Guard link systems reduce response time, allowing machines to resume production faster after a safety stop.
Reduction in wiring effort is substantial with Guard link, using M12 connectors for plug-and-play ease.
Wiring efficiency is increased with daisy chain implementation, which is common in many OMS.
Cost savings are achieved through daisy chaining devices, reducing the need for extensive wiring.
Remote-controlled lock, unlock, and reset features facilitate fast machinery access and shorten troubleshooting times.
The plug-and-play nature of Guard link systems can reduce installation time by 20 to 38 percent.
The efficiency of the system is greatly enhanced with the use of Guard link technology in safety applications.
The implementation of Guard link technology is a significant advancement in machinery safety and efficiency.
Transcripts
we talked about wiring being able to
achieve a higher level of safety with
the garden link product some of the
recent changes in the standards the en
iso 14 one-one-nine has prevented series
wearing from achieving the highest
levels of machinery safety because of
the potential for fault masking the
issue with this is basically you cannot
achieve the diagnostic coverage needed
to get to ple so basically if I have
multiple door switches multiple e-stops
wired in series a ple circuits not
possible according to this standard so
if you take advantage of guard link you
can still achieve that by wiring
multiple devices in series because you
eliminate the possibility of fault
masking between multiple doors in series
or multiple devices in series one other
thing talking about the ple we've seen a
lot of customers that are trying to go
to the ple type solution just from a
standardization standpoint again that
makes it possible to achieve that very
easy versus having to wire each device
back independently monitoring each
device and things of that nature to get
to some of the other kind of advantages
from a system standpoint this is an
example of two different systems the
system on the Left would have been using
a hardwired approach with our sense of
guard series basically having $0.10 a
guard series in series back to your
safety relay so what happens with that
is from a response time standpoint we
have to look at each one of those
devices what the natural device is I had
a fifty-four millisecond response time
and then for each additional one it
stacks on top of that so that made our
total system response time like 234
milliseconds which can be a long time in
a motion type application so you can see
over on the right basically we took a
guard link system set up the same type
of system
it's reminisce Lee reduced that response
time so again that's faster machine can
be put back in production faster it can
stop from a safety perspective so that
can be pretty big depending on your
system
and we talked a little bit about it but
the reduction in wiring is huge from a
installation standpoint just because
everything is an m12 connector it's all
plug-and-play reduce the wiring effort
of twenty to thirty eight percent also
increased efficiency of the daisy chain
implementation we commonly see that from
a lot of OMS there's daisy chaining
devices from a cost standpoint the and
then you have the remote-controlled lock
and unlock and reset fast machinery
access and shorten troubleshooting
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