BECKHOFF TwinSAFE User Manual
Page 75
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Circuit examples
Application Guide TwinSAFE
73
with:
ܯܶܶܨ
ௗ
ሺS1ሻ ൌ
ܤ10
ௗ
ሺܵ1ሻ
0.1 כ ݊
ܯܶܶܨ
ௗ
ሺS2ሻ ൌ
ܤ10
ௗ
ሺܵ2ሻ
0.1 כ ݊
ܯܶܶܨ
ௗ
ሺLockሻ ൌ
ܤ10
ௗ
ሺܮܿ݇ሻ
0.1 כ ݊
ܯܶܶܨ
ௗ
ሺUnlockሻ ൌ
ܤ10
ௗ
ሺܷ݈݊ܿ݇ሻ
0.1 כ ݊
ܯܶܶܨ
ௗ
ሺTumblerሻ ൌ
ܤ10
ௗ
ሺܵ4ሻ
0.1 כ ݊
ܯܶܶܨ
ௗ
ሺK1ሻ ൌ
ܤ10
ௗ
ሺܭ1ሻ
0.1 כ ݊
If only PFH values are available for EL1904 and EL6900, the following estimation applies:
ܯܶܶܨ
ௗ
ሺELxxxxሻ ൌ
ሺ1 െ ܦܥሺܧܮݔݔݔሻሻ
ܲܨܪሺܧܮݔݔݔሻ
Hence:
ܯܶܶܨ
ௗ
ሺEL1904ሻ ൌ
൫1 െ ܦܥሺܧܮ1904ሻ൯
ܲܨܪሺܧܮ1904ሻ
ൌ
ሺ1 െ 0.99ሻ
1.11E െ 09
ଵ
୦
כ 8760
୦
୷
ൌ
0.01
9.72E െ 06
ଵ
୷
ൌ 1028.8y
ܯܶܶܨ
ௗ
ሺEL6900ሻ ൌ
ሺ1 െ ܦܥሺܧܮ6900ሻሻ
ܲܨܪሺܧܮ6900ሻ
ൌ
ሺ1 െ 0.99ሻ
1.03E െ 09
ଵ
୦
כ 8760
୦
୷
ൌ
0.01
9.02E െ 06
ଵ
୷
ൌ 1108.6y
ܯܶܶܨ
ௗ
ሺEL2904ሻ ൌ
ሺ1 െ ܦܥሺܧܮ2904ሻሻ
ܲܨܪሺܧܮ2904ሻ
ൌ
ሺ1 െ 0.99ሻ
1.25E െ 09
ଵ
୦
כ 8760
୦
୷
ൌ
0.01
1.1E െ 05
ଵ
୷
ൌ 913.2y
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