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Old February 14th, 2018, 10:35 AM   #13
AustralIan
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Germany

AustralIan is offline
 
Join Date: Jan 2013
Location: Germany
Posts: 848
Read ISO 13849 for how to do risk assessments and implement appropriate safety circuits to mitigate the risks identified.
A single contactor can be ok for a hazard requiring PLc mitigation.
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