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Siemens AG
Entry type: FAQ Entry ID: 73136378, Entry date: 08/18/2016
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SIRIUS Safety Integrated: Emergency stop shutdown to SIL 3 or PL e with a safety relay

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This entry contain an application example for Emergency stop shutdown to SIL 3 or PL e ....

 

Task

Two-channel emergency stop shutdown of a motor by a 3SK1 safety relay and power contactors. 

Solution 

The safety relay monitors the emergency stop command device on two channels. When the emergency stop command device is actuated, the safety relay opens the enabling circuits and switches the power contactors off in a safety-related way. If the emergency stop command device is unlatched and the feedback circuit is closed, the Start button can be used to switch on again. 

 

Downloads

Content of Downloads

Download

Wiring diagrams Wiring_Emergency_stop_3SK1_SIL3.zip ( 92 KB )
Project for Safety Evaluation Tool Emergency_stop_SIL3_3SK1_set.zip ( 19 KB )
CAx download
Configurators

 

Filter criteria: 

Hardware platform:  Safety, SIRIUS
Software:  none
Entry contens:  Application Examples