Siemens SINAMICS DCM - Result When Using Two Power Contactors

Evaluating the safety functions according to EN ISO 13849 when using two switching devices
10.5 Result when using two power contactors
Application document for functional safety STO, SS1 (ISO 13849-1)
Compact User Manual, 09/2016, A5E34871844AM
61
10.5
Result when using two power contactors
PL
Average probability of a dangerous failure per hour
DETECT
e
9.06 E-10
EVALUATE e 5.42 E-09
RESPOND
e
9.06E-10
Result
Reason
PL d
The PL of all tasks of the supplementary safety function is at
least d.
Average probability of a dangerous
failure per hour
7.32E-09