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this post was submitted on 10 Nov 2023
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Sounds like plant management needs to enforce lock-out tag-out procedure. That's rule 1 of working on heavy machinery, no matter how safe you think it is.
Did you read the article? The guy was diagnosing a sensor issue, can’t LOTO, you would have no power to diagnose the issue with.
You could disable the motors. You can read out sensors without the arm moving. And if the arm needs to move, do it from a distance (cable connected or wireless).
A human shouldn't be anywhere near moving robotic arms, ever.
The guy worked for the robot manufacturer, according to the article! You'd think would have been much more aware of the robot's reach, and the safety procedures. Plus, I'm pretty sure you can step through the robot programming slowly. I've seen our programmers do it. Please don't tell me he was in the cell standing next to the crate or whatever, with that thing running full production speed.
To be clear, you oft times can’t easily debug live code on a piece of machinery. Unless it was specifically designed to accommodate, 99/100 times it’ll be nigh impossible without digging in a soldering things to other things. And that is usually not something done on a factory floor.