Datasheet

Relays for functional safety
Safety relays PNOZsigma
PNOZ s30
Pilz GmbH & Co. KG, Felix-Wankel-Straße 2, 73760 Ostfildern, Germany
Telephone: [phone], Telefax: [phone], E-Mail: [e-mail]
2016-09
880
Safety-related characteristic data for operation with a safe rotary encoder
Safe encoders are certified in accordance with EN 61508, EN 13849 and EN 62061. In or-
der to achieve the safety level stated by the encoder, the safe evaluation device (PNOZ
s30) must normally detect designated errors. Details of the safe encoder's requirements of
the evaluation device can be found in the user documentation for the safe encoder. The en-
coder and evaluation device must be compatible.
Permitted encoder types and output signals
Permitted encoder types:
} Rotary safe encoder
} Linear safe encoder
Permitted output signals:
} Sin/Cos output signals 1Vss, reference voltage
} Sin/Cos output signals 1Vss, differential
Safety-related architecture
Sensor
safe encoder
Actuator
SRP/CS
Actuator
SRP/CS
Sensor
PNOZ s30
Logic
+
Diagnostic
SRP/CS
Logic
To calculate the safety function you will need the following data for the "sensor" subsystem
and "PNOZ s30" subsystem:
Sensor PNOZ s30 subsystem
PL SIL PFH (1/
h)
Operating mode PFH (1/h)
See manufacturer Monitoring
Safe encoder
2,78E-09