Pilz PNOZ s30 - Safety-Related Architecture; Achievable Safety Level; Safety-Related Characteristic Data for Operation with Non-Safety-Related Rotary Encoder with; Permitted Encoder Types and Output Signals

Supplementary data
Operating Manual PNOZ s30
1001715-EN-19
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13.3.3.2 Safety-related architecture
To calculate the safety function you will need the following data for the "sensor" subsystem
and "PNOZ s30" subsystem:
Sensor PNOZ s30 subsystem
Category MTTFd DC Operating mode PFH (1/h)
1* Manufacturer-
specific
0 % Monitoring
1 encoder
2,88E-08
*In accordance with EN ISO 13849-1, Category 1 is only met if the sensor is a "well-tried
component".
13.3.3.3 Achievable safety level
Safety function PL in accordance with EN
ISO 13849-1: 2015
SIL CL in accordance with
ENIEC62061
Speed
Speed range
Direction
Standstill
Position
PL c (Cat. 1) -
13.3.4 Safety-related characteristic data for operation with non-safety-related
rotary encoder with mechanical fault exclusion
In accordance with EN 61800-5-2: 2007, Table D.16 (Motion and position feedback
sensors), fault exclusions are permitted for faults in the mechanical connection between the
sensor (encoder) and motor.
13.3.4.1 Permitted encoder types and output signals
Permitted encoder types:
} Rotary non-safety-related encoders
Permitted output signals:
} Sin/Cos output signals 1Vss, reference voltage
} Sin/Cos output signals 1Vss, differential
NOTICE
The signal tracks Cos and Sin must be generated independently. This
means that the sine and cosine signals in the encoder must be conducted in
independent channels, from the optics to the interface.
The two signal tracks must not be generated by a common processor
One signal may not be derived from the other signal via an electronic circuit.