Category 2 Archives - Machinery Safety 101

16 May, 2018

Q & A: Category 2 and Testing Intervals

in Control Functions, Functional Safety, Interlocks, ISO 13849, Q & A /

Logical block diagram for ISO 13849-1 Category 2 architecture.

During the Free Safety Talks that we did with Schmersal Canada and Franklin Empire, we had a “hot question” come up regarding Category 2 architecture and the testing interval requirement. The definition of Category 2 in 6.2.5 does not include any mention of a minimum testing rate, but 4.5.4 “Simplified procedure for estimating the quantifiable…

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