Control Design: In many automation setups, safety still operates on a simple on/off binary—either the machine is running or it isn’t. This means when human operators need access to the space around the machine, power is completely cut and all motion comes to a halt until they leave again and the system is reset.
1 comment:
With there being so much talk around the company automation these last few weeks, it is really interesting to read an article centered around safety in automation. I like the idea that this article presents about functional safety, and slowing things down to make them safer, but I am having a hard time visualizing what that would look like in practice. Obviously when automated systems like chain hoists and such are being used during a load-in, it is best to remember the mantra "Slow is smooth, smooth is fast", and it is easy to slow systems down enough to enable operator interaction while still being safe. However, oftentimes when a show is running, the automation is intended to match the speed of the show. If a piece can't come off stage faster than someone could push it, then its not worth it. I would have really liked to see an example of what the author was intending to show in the article, rather than just a general "go slower".
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