3 achievable safety level, 1 permitted encoder types and output signals, 2 safety-related architecture – Pilz PNOZ s30 24-240VACDC 2 n/o 2 n/c User Manual

Page 75

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Supplementary data

Operating Manual PNOZ s30
1001715-EN-13

75

Achievable safety level

Safety function

PL in accordance with EN

ISO 13849-1: 2006

SIL CL in accordance with

EN IEC 62061

Speed
Speed range
Direction
Standstill
Position

PL c (Cat. 1)

-

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 sen-
sors), fault exclusions are permitted for faults in the mechanical connection between the
sensor (encoder) and motor.

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

CAUTION!
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.

Safety-related architecture

Sensor

non-safe encoder

Actuator

SRP/CS

Actuator

SRP/CS

Sensor

PNOZ s30

Logic

+

Diagnostic

SRP/CS

Logic

9.2.3.3

9.2.4

9.2.4.1

9.2.4.2

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