Pepperl+Fuchs HiD2022 Series, Руководство пользователя

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Functional Safety HiD2022*, KFD2-STC5-(Ex)*, KFD2-STV5-(Ex)*
Planning
20
21
-0
4
15
3.3 Characteristic Safety Values
KFD2-STC5-1, KFD2-STC5-Ex1, KFD2-STC5-Ex1.H, KFD2-STV5-1-1,
KFD2-STV5-Ex1-1, KFD2-STV5-Ex1-2
HiD2022, HiD2022SK, KFD2-STC5-2, KFD2-STC5-Ex2, KFD2-STV5-2-1,
KFD2-STV5-Ex2-1, KFD2-STV5-Ex2-2
Parameters acc. to IEC 61508 Characteristic values
Assessment type and documentation Full assessment
Device type A
Operating mode Low Demand Mode or High Demand Mode
Safety function Transfer of analog signals
HFT 0
SIL 2
SC 3

s
0 FIT

low
1
1
"Fail low" failures are considered as dangerous detected failures 
dd
.
169 FIT

du
67 FIT

not part
70 FIT

total (safety function)
236 FIT

total
653 FIT
SFF 72 %
PTC 100 %
MTBF
2
2
acc. to SN29500. This value includes failures which are not part of the safety function/MTTR = 24 h. The value is valid for one safety
loop only.
175 years
PFH 6.72 x 10
-8
1/h
PFD
avg
for T
1
= 1 year 2.94 x 10
-4
PFD
avg
for T
1
= 2 years 5.88 x 10
-4
PFD
avg
for T
1
= 5 years 1.47 x 10
-3
Reaction time
3
3
Time between fault detection and fault reaction
< 100 ms
Table 3.2