Result When Using Two Power Contactors - Siemens SINAMICS DCM User Manual

11.5

Result when using two power contactors

DETECT
EVALUATE
RESPOND
Result
SILCL
SIL claim limit
PFH
D
Average probability of a dangerous
failure per hour
Application document for functional safety STO, SS1 (ISO 13849-1)
Compact User Manual, 09/2016, A5E34871844AM
Evaluation of the safety function according to EN 62061
SILCL PFH
3 8.33 E-10
3 5.42 E-09
3 3.24 E-10
Reason
3 The SILCL of all tasks of the supplementary safety function
is at least 3.
2.57 E-08
11.5 Result when using two power contactors
D
69