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EXAMPLE AUTOMATIC PRODUCTION LINE
In this case the Protective Housing may have a guard capable of being opened or removed, typically only for
service operation (frequency: seldom or occasional):
•
Guard opening should only be possible with the aid of a tool.
•
Guard safety switch is connected as input of a safety logic and Vlase™ interlock system as
output/input of that safety logic.
•
Warning label for access panel according EN60825-1 must be applied.
Since the frequency is LOW (F1) and the removal of the guard is intentional, the MINIMUM REQUIREMENT
as per IEC13849-1 is PLc.
Target: PLr = c
89
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