Title:
Circuits Safety Subfunctions Pneumatics
Subtitle:
STO, cat. 1, PL c; PUS, cat. 2, PL d; CH 1: 5/3 way valve, monitoring by limit switch drive; OTE: 3/2-way valve, closed
Description:

Safe Torque Off (STO), up to category 1, up to PL c;
PUS, up to category 2, up to PL d;
Channel 1 (working valve): 5/3-way valve, exhausted, electrically actuated, pilot actuated, mechanical spring, monitoring by limit switch drive.
Output test channel (operation pressure): 3/2-way valve, closed, electrically actuated, pilot actuated, mechanical spring.
Safety Application Note with a possible implementation of the safety sub-functions STO 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.

Document type:
Application Note
Title Version
Circuits Safety Subfunctions Pneumatics

Safe Torque Off (STO), up to category 1, up to PL c;
PUS, up to category 2, up to PL d;
Channel 1 (working valve): 5/3-way valve, exhausted, electrically actuated, pilot actuated, mechanical spring, monitoring by limit switch drive.
Output test channel (operation pressure): 3/2-way valve, closed, electrically actuated, pilot actuated, mechanical spring.
Safety Application Note with a possible implementation of the safety sub-functions STO 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.

Sicherheits-Teilfunktionen Pneumatik - Schaltung

Sichere Momentabschaltung (STO), bis zu Kategorie 1, bis zu PL c;
Vermeidung unerwarteter Anlauf (PUS), bis zu Kategorie 2, bis zu PL d;
Kanal 1 (Arbeitsventil): 5/3 entlüftet, elektrisch betätigt, vorgesteuert, mechanische Feder, Überwachung durch Endschalter Antrieb
Ausgang Testkanal (Arbeitsdruck): 3/2 geschlossen, elektrisch betätigt, vorgesteuert, mechanische Feder
Safety Application Note mit einer möglichen Umsetzung der Sicherheits-Teilfunktionen STO und PUS. Enthalten ist die Grundschaltung, sicherheitsbezogenes Blockdiagramm, Sistema-Projekt, FluidDraw-Projekt, FluidSim-Projekt, Merkmale geeigneter Produkte und eine Produktliste geeigneter Produkte von Festo.