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2.4.1. STO Standards
describes and specifies the safety requirements at the system level for the Safe Torque Off
(STO) feature of the XC4e. This assumes that diagnostic testing is performed according to
and
.
Table 2-28:
STO Standards
Standard
Maximum Achievable Safety
EN/IEC 61800-5- 2:2016
SIL 3
EN/IEC 61508-1:2010
SIL 3
EN/IEC 61508-2:2010
SIL 3
EN ISO 13849-1:2015
Category 4, PL e
EN/IEC 62061:2005 with Amendments
SIL 3
Table 2-29:
STO Standards Data
Standard
Value
EN ISO 13849-1:2015
MTTF
D
> 1000 years,
DC
AVG
99%
Maximum PL e, Category 4
EN ISO 13849-1:2015
EN/IEC 61508
Lifetime = 20 years
No proof test required
Interval for manual STO test:
l
Once per year for SIL2/PL d/category 3
l
Once per three months for SIL3/PL e/category 3
l
Once per day for SIL3/PL e/category 4
EN/IEC 61508
SIL3
PFH < 3 FIT
SFF > 99%
2.4. Safe Torque Off Input (STO)
XC4e Hardware Manual
62
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Содержание Automation1 XC4e
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Страница 24: ...Figure 1 4 Dimensions EB1 1 2 2 Dimensions XC4e Hardware Manual 24 www aerotech com...
Страница 73: ...Figure 2 38 PSO Interface XC4e Hardware Manual 2 5 Auxiliary I O Connector www aerotech com 73...
Страница 94: ...Figure 3 2 Digital Outputs Schematic EB1 3 1 Digital Outputs EB1 XC4e Hardware Manual 94 www aerotech com...
Страница 105: ...Figure 4 2 Two Axis Joystick Interface to the I O board XC4e Hardware Manual 4 1 Joystick Interface www aerotech com 105...
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