12
7
Safety characteristics
Characteristics
Value
B10
d
1.5 • 10
6
cycles at
100mA load
ISO 13849-1
Up to PL
e
depending upon system architecture
EN 62061
Up to SIL3 depending upon system architecture
Annual Usage
8 cycle per hour/24hours per day/365 days
MTTF
d
214 years
The safety rope switch may be used as part of the safety related control system to perform the
emergency stop function in accordance with EN 13850.
For the PFD-/PFH values and the MTTF
d
values of the other components see the respective
documentation.
Explanation of the abbreviations:
PL
Performance Level
Capability of safety-related parts to perform
a safety function at predictable conditions to
fulfill the expected risk reduction.
SIL
Safety Integrity Level
Safety Integrity Level SIL 1-4 to IEC 62061.
The higher the SIL the lower the probability
that a safety function will fail.
B10
d
Number of cycles, up to 10% of the
components with dangerous failure.
MTTF
d
Mean Time To Dangerous
Failure
