Hubner U-ONE-SAFETY-LWL Generation II, Руководство по эксплуатации и сборке

Страница: 31 / 36

U-ONE
®
-SAFETY-LWL
Configuration manual
USL_KonfigManual-en_R3
31
7 Safety data sheet
7.1 Safety parameters
Architecture Category PL SIL CL Service life
1oo2
(2-channel)
3 d
2
(high demand)
20 years
The safety parameters for the U-ONE-SAFETY-LWL are based on the safety parameters of the
modules required for the safety function.
7.1.1 Examples
Safe speed switch:
The components basic device USL(H)42, the UO-SCU module and the UO-SGS-R module are
required with the following parameters for a safe speed switch:
PFD
AV
PFH [FIT] DC
avg
[%] MTTF
D
[a]
USL(H)42 2.73E-05 0.16 98.1 206
UO-SCU 3.20E-05 0.18 97.2 207.9
UO-SGS-R 3.13E-05 0.18 97.1 227.4
PFD
AV
Total
= ∑PFD
AV
= 9.06E-05
PFH
Total
= ∑PFH
= 0.54 FIT
DC
avgTotal
= ∑DC
avg
/ 3 = 97.5 %
MTTF
D
Total
= 1 / (1 / MTTF
D-USL
+ 1 / MTTF
D-SCU
+ 1 / MTTF
D-SGS
) = 71.1 years
Safe PROFINET:
The components basic device USL(H)42, the UO-SCU module and the UO-SGS-R module are
required with the following parameters to transfer a safe position and speed.
PFD
AV
PFH [FIT] DC
avg
[%] MTTF
D
[a]
USL(H)42
2.73E-05 0.16 98.1 206
UO-SCU 3.20E-05 0.18 97.2 207.9
UO-SPN-1 2.68E-05 0.15 96.1 317.6
PFD
AVTotal
= ∑PFD
AV
= 8.61E-05
PFH
Total
= ∑PFH
= 0.49 FIT
DC
avgTotal
= ∑DC
avg
/ 3 = 97.1 %
MTTF
D
Total
= 1 / (1 / MTTF
D-USL
+ 1 / MTTF
D-SCU
+ 1 / MTTF
D-SPN
) = 78 years