Supplementary data
Operating Manual PSSu K F EI
1003303-EN-03
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9.1.4.2
Safety-related architecture
SRP/CS
Sensor
Sensor
non-safe encoder
Logic
+
Diagnostic
Actuator
PSSu K F EI
SRP/CS
Logic
SRP/CS
Logic
To calculate the safety function you will need the following data for the "sensor" subsystem
and the subsystem "PSSu K F EI":
Sensor
Subsystem PSSu K F EI
Category
MTTFd
DC
Operating mode
PFH (1/h)
2
Manufacturer-
specific
90 %
Monitoring
1 sensor
1,80E-08
The values for
DC
refer to the standard EN 61508.
9.1.4.3
Achievable safety level
Monitoring
function
PL of EN ISO 13849-1: 2015
SIL CL in accordance with
EN IEC 62061
SOS-M
SSR-M
SDI-M
SSM
SS1-M
SS2-M
PL d (Cat.2)
2
9.1.5
Safety-related characteristic data for operation with non-safety-related
encoder with diagnostics via the drive controller
The detection of sensor errors (diagnostics for the sensor subsystem via the evaluation
device) can be supplemented with a drive controller.
9.1.5.1
Permitted sensor types and output signals
Permitted sensor types:
}
Rotary non-safety-related encoders
}
Linear non-safety-related encoders
Permitted output signals:
}
Square output signals TTL, single ended
}
Square output signals TTL, differential
}
Square output signals HTL, single ended
}
Square output signals HTL, differential
