schmersal PSC1 Series Installation Manual page 164

Installation manual
Calculation according to EN ISO 13849-1:
Channel A – shutdown via mains contactor:
Component MTTFd [years]
Door locking
B10d = 100000
NOP = 30/working days = 9270/year (309 working
days/year)
MTTFd =
SIN/COS
encoder MTTFd
PES
PFHd = 1.4 * 10
MTTFd =
Mains
contactor B10d = 20 * 10
NOP = 20/working days = 3990/year (309 working
days/year)
MTTFd =
MTTFd_A =
MTTFd_Türz.
Channel B – shutdown via STO/converter:
Component
Door locking
SIN/COS
encoder
PES
STO/
converter
MTTFd_B =
1
MTTFd_Türz
PSC1-C-10 Installation manual V2.7
Version: 57E
B10d
= 108 Jahre
0,1 ∗ Nop
= 30 years
SinCos
-8
1
8760 ∗ PFHd
6
B10d
= 32362 Jahre
0,1 ∗ Nop
1 1
+
MTTFd_SinCos
MTTFd [years]
B10d = 100000
Nop = 30/working days = 9270/year (309
working days/year)
B10d
MTTFd = = 108 Jahre
0,1 ∗ Nop
MTTFd = 30 years
SinCos
-8
PFHd = 1.4 * 10
1
MTTFd =
8760 ∗ PFHd
MTTFd = 150 years
STO
1
1
+ +
MTTFd_SinCos
= 8154 Jahre
1
1
+ +
MTTFd_PES MTTFd_Netzsch
= 8154
1 1
+
MTTFd_PES MTTFd_Netzsch
DC
DC = 99%
Switch
DC = 99%
Encoder
DC = 99%
PES
DC = 60%
PES
= 23 years
1
DC
DC = 99%
Switch
DC = 99%
Encoder
DC = 99%
PES
DC = 90%
PES
= 20 years
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