Pilz PNOZ m EF 1MM, Operating Manual

Page: 53 / 62

Supplementary data
Operating Manual PNOZ m EF 1MM
1003108-EN-11
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}
Fault detection via the error variable with subsequent shutdown must meet the require-
ments of the safety function, with regard to reaction times for example.
}
The drive controller must evaluate the same incremental/SinCos signals from the encoder
for control as are processed by the safe evaluation device (important on encoders with
combined analogue/digital interface).
9.1.5.3 Safety-related architecture
SRP/CS
Sensor
Sensor
non-safe encoder
Logic
+
Diagnostic
Actuator
PNOZ m EF 1MM
SRP/CS
Logic
SRP/CS
Logic
Diagnostic
Drive Control
To calculate the safety function you will need the following data for the "sensor" subsystem
and the subsystem "PNOZ m EF 1MM":
Sensor Subsystem PNOZ m EF 1MM
Category MTTFd DC Operating mode PFH (1/h)
2 Manufacturer-
specific 90 % Monitoring
1 sensor 1,83E-08
The values for DC refer to the standard EN 61508.
9.1.5.4 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
SLA-M
SAR-M
PL d (Cat.2) 2