Safety-Related Architecture; Achievable Safety Level; Safety-Related Characteristic Data For Operation With A Safe Encoder - Pilz PSSu K F EI CV Operating Manual

Supplementary data
9.1.5.3

Safety-related architecture

To calculate the safety function you will need the following data for the "sensor" subsystem
and the subsystem "PSSu K F EI CV(-T)":
Sensor
Category
2
The values for DC refer to the standard EN 61508.
9.1.5.4

Achievable safety level

Monitoring
function
SOS-M
SSR-M
SDI-M
SSM
SS1-M
SS2-M
Position counter value
9.1.6

Safety-related characteristic data for operation with a safe 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 (PSSu K F
EI CV(-T)) must normally detect designated errors. Details of the safe encoder's require-
ments of the evaluation device can be found in the user documentation for the safe en-
coder. The encoder and evaluation device must be compatible.
Operating Manual PSSu K F EI CV(-T)
1004290-EN-04
SRP/CS
Sensor
Sensor
non-safe encoder
MTTFd DC
Manufacturer- 90 %
specific
PL of EN ISO 13849-1: 2015
PL d (Cat.2)
SRP/CS
Logic
PSSu K F EI CV
Logic
+
Diagnostic
Drive Control
Diagnostic
Subsystem PSSu K F EI CV(-T)
Operating mode
Monitoring
1 sensor
SIL CL in accordance with
EN IEC 62061
2
SRP/CS
Logic
Actuator
PFH (1/h)
1,80E-08
67