52
SE-Power FS STO-manual vers. 1.6 en.12.08.2015
9
Technical appendix
9.1
Technical data
9.1.1
Safety engineering
Safety indicators
Safety function
STO
Safe Restart Interlock (STO, Safe Torque Off) to
EN 61800-5-2 with SIL3
Safe Restart Interlock (STO, Safe Torque Off) to
EN ISO 13849-1 with category 4 and PL e
SIL
SIL 3 /
SIL CL 3
Safety integrity level according to EN 61800-5-2
Category
4
Classification in category in accordance with EN ISO 13849-
1
PL
Pl e
Performance level in accordance with EN ISO 13849-1
DCavg
[%]
97,5
Average diagnostic coverage
HFT
1
Hardware failure tolerance
SFF
[%]
99,2
Safe Failure Fraction
PFH
1,07 x 10
–
10
Probability of dangerous Failure per Hour
PFD
2,3 x 10
–5
Probability of dangerous Failure on Demand
T
[Years] 20
Proof Test Interval
Duration of use in accordance with EN ISO 13849-1
MTTFd
[Years] 100
Mean time to dangerous failure
Calculated at 1450 years, limited to 100 years
Table 14:
Technical data: Safety indicators
Safety specifications
Product type testing
The functional safety equipment of the product was
certified by an independent testing authority in accordance
with
section 3.1.4,
see EC product type test certificate.
Certificate-issuing authority
TÜV 01/205/5443.00/15
Reliable component
Yes
Table 15:
Technical data: Safety specifications