User Documentation

10
Notesonconguring
1438130000/02/07-2018
Table 1
Safety basic data
Safety category SIL3
Safety standard DIN EN 61508
Device type A
HFT 1
Table 2
Safetyparameters“lowdemandmode”accordingtoEN61508
Switching
cycle
PFH SFF λ
SD
λ
SU
λ
DD
λ
DU
SIL
1× per year 2,3 × 10
-12
h
-1
99,99 % 1,13 × 10
-1
FIT 1,6 × 10
+1
FIT 1,13 × 10
-1
FIT 1,14 × 10
-3
FIT 3
FIT = 10
-9
h
-1
(Failure in time)
Table 3
Safetyparameters“highdemandmode”accordingtoEN61508
Switching
cycle
PFH SFF λ
SD
λ
SU
λ
DD
λ
DU
SIL
1× per day 7,87 × 10
-10
h
-1
99,58 % 4,11 × 10
+1
FIT 1,64 × 10
+1
FIT 4,11 × 10
+1
FIT 4,15 × 10
-1
FIT 3
10× per day 8,41 × 10
-9
h
-1
99,51 % 4,12 × 10
+2
FIT 2,02 × 10
+1
FIT 4,12 × 10
+2
FIT 4,17 FIT 3
FIT = 10
-9
h
-1
(Failure in time)
Table 4
Safetyparameters“highdemandmode”accordingtoENISO13849-1
Switching
cycle
PFH MTTFD λ
SD
λ
SU
λ
DD
λ
DU
1× per year 2,3 × 10
-12
h
-1
2500 1,13 × 10
-1
FIT 1,6 × 10
+1
FIT 1,13 × 10
-1
FIT 1,14 × 10
-3
FIT
10× per day 8,41 × 10
-9
h
-1
270 4,12 × 10
+2
FIT 2,02 × 10
+1
FIT 4,12 × 10
+2
FIT 4,17 FIT
FIT = 10
-9
h
-1
(Failure in time)
Diagnostic coverage (DC): 99%
Hardware category: 4
Performancelevel (PL): e