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Circuits Safety Subfunctions Pneumatics 04/09/2026
Notes on Sistema Project Files
The safety application notes contain Sistema project files. Additional notes are given here which are to be taken into account when adapting them to a specific project.
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1.20
04/09/2026
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Application NoteFile and language versions
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Safety Subfunktions Pneumatics 04/09/2026
Service units
Safety Application Note with information about service units for the use with pneumatic safety subfunctions.
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1.20
04/09/2026
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Application NoteFile and language versions
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Safety Subfunctions Pneumatics - Circuit 31/08/2026
SSC, cat. 1, PL c; PUS, cat. 1, PL c; CH 1: piloted check valve; 2 x 3/2-way, closed
Safe Stopping and Closing (SSC), up to category 1, up to PL c;
Prevention of unexpected start-up (PUS), up to category 1, up to PL c;
Channel 1: piloted check valve; 2 x 3/2-way, closed, electrically actuated, pilot actuated, mechanical spring;
Safety Application Note with a possible implementation of the safety sub-functions SSC and PUS. Included is the basic circuit, safety-related block diagram, Sistema project, FluidDraw project, FluidSim project, characteristics of suitable products and a product list of suitable products from Festo.
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1.40
31/08/2026
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Application NoteFile and language versions
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