Machinery Protection Devices - British Automation & Robot ...
Machinery Protection Devices - British Automation & Robot ...
Machinery Protection Devices - British Automation & Robot ...
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AmStop4 AmStop4 AmStop4FORTRESINTERLOCKFORTRESINTERLOCKFORTRESINTERLOCK113RR2241 5 3 72 64+V/L0V/N106Reset13 23 2411<strong>Machinery</strong> <strong>Protection</strong><strong>Devices</strong>A1 S33 S34PNOZ X5S11 S12 A214 S12 S22Fig. 15: AMSTOP from Fortress Interlocks connected to a Pilz PNOZ X5, complyingwith category 3, EN 954-1Using the two normally closed outputs on the AMSTOP with areference point from the safety relay, this connection is single-faulttolerant and therefore meets the requirements of category 3,EN 954-1. This is because both outputs from the AMSTOP mustrespond correctly. If a fault occurs in one channel (for example, theoutput not breaking or closing, or a fault to earth), the PNOZ X5 willnot reset. Auto reset is available with this connection.
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