Siemens SIRIUS 3RT Manual page 128

Configuration
6.11 Contactors in safety applications
EMERGENCY STOP shutdown up to SILCL 3 or PL e / Cat. 4 via an F-DQ
Description
● EMERGENCY STOP shutdown
● "Detecting" subsystem up to SILCL 3 as per IEC 62061 and PL e / Cat. 4 as per
EN ISO 13849-1
● EMERGENCY STOP command device according to ISO 13850
● Two-channel sensor interfacing
● Discrepancy evaluation between the sensor channels
● Cross-circuit monitoring of the sensor wiring
● Monitored start
● Shutdown of two contactors via a safety-related output
● Stop category 0
● "Reacting" subsystem up to SILCL 3 as per IEC 62061 and PL e / Cat. 4 as per
EN ISO 13849-1
● Redundant actuators
● Use of a safety-related output on the 3SK1 safety relay
● Cross-circuit-proof, short-circuit-to-ground-proof laying in the field or laying in a control
cabinet necessary
Application
①
②
③
128
Detection: EMERGENCY STOP
Evaluation: 3SK1 safety relay
Reaction: 3RT1 contactors with fail-safe control input
SIRIUS - SIRIUS 3RT Contactors/Contactor assemblies
Manual, 09/2017, A5E03656507120A/RS-AE/006