Supplementary data
Operating Manual PNOZ m EF 1MM
1003108-EN-11
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}
Inductive proximity switches
Permitted output signals:
}
Square output signals HTL, single ended
}
Square output signal 24 V, pnp
9.1.8.2
Safety-related architecture
SRP/CS
Sensor
Sensor
non-safe encoder
Logic
+
Diagnostic
Actuator
PNOZ m EF 1MM
SRP/CS
Logic
SRP/CS
Logic
Sensor
proximity switch
To calculate the safety function you will need the following data for the "sensor" subsystem
and the subsystem PNOZ m EF 1MM:
Sensor
Subsystem PNOZ m EF 1MM
Category
MTTFd
DC
Operating mode
PFH (1/h)
4
Manufacturer-
specific
90 %
Monitoring
2 sensors
1,35E-09
In a worst case scenario, the sensor subsystem's characteristic value MTTFd is calculated
from the inferior (lower) value of the two sensors.
The values for
DC
refer to the standard EN 61508.
9.1.8.3
Achievable safety level
Monitoring function
PL of EN ISO 13849-1:
2015
SIL CL in accordance with
EN IEC 62061
SOS-M
SDI-M
SS2-M
PL c (Cat.1)
-
SSR-M
SSM
SS1-M
SLA-M
SAR-M
PL e (Cat.4)
3
Please note:
For the "sensor" subsystem, a minimum speed must be exceeded within forced dynamisa-
tion.
