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Is it acceptable to use mirrors to improve visibility? We're considering a robot cell with a few blind spots. Per 15.06, the interlock reset should "have a clear and unobstructed view of the safeguarded space." Have people used mirrors successfully to address blind spots without the need for a timed reset button inside the cell or presence sensing?
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Your answer is the risk assessment. You do a risk assessment as it stands without any safety devices, or risk reduction methods and determine the performance level you need for the safety device(i.e. a.b.c.d.or e) that will You then apply your risk reduction method. Then a new risk assessment. If the risk is brought to an acceptable level you are all set, if not try again with a different approach. If you are not comfortable doing your own risk assessment you can hire someone out side your company to do it