Entry type: FAQ Entry ID: 9806361, Entry date: 06/11/2002
AS-i Safety: Deviation of the safety relevant norm DIN EN 60204
Request : Does the safety monitor fulfills the norm DIN EN 60204-1: 1997? Under item 188.8.131.52.2, in this you find, that only hardwired electromechanical operating equipment may be used for stop category 0. This isn't given at the safety monitor since it is attached by a bus system. Suggestion : The norm DIN EN 60204-1: 1997 says under 184.108.40.206.2: "Where a category 0 stop is used for the emergency stop function, it shall have only hard-wired electromechanical components" In the preface of the execution of 1998-11 also electronic components were allowed for the first time: "Furthermore these instructions explain that in cases in which other norms other technical solutions allow when fixed in the EN 60204-1 these other technical solutions may be used. Also electronic components can be used for emergency stop functions - independent of the stop category - if they have (under consideration of EN 954-1 and / or IEC 61508) the same safety as demanded to EN 60204-1.
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