Commissioning
Safety function
Hans Turck GmbH & Co. KG | T +49 208 4952-0 | [email protected] | www.turck.com
V01.00 | 2022/09 | 14
7
Using the device in safety applications
The device is designed in accordance with EN ISO 13849-1 “Safety of machinery - Safety-related
parts of control systems”.
7.1
Safety function
The safety function is executed by the higher-level system.
The supply voltage V1 of the outputs at C0…C3 and the supply voltage V2 of the outputs at
C4…C7 can be safely switched off by an external safety relay or a safe control.
Safe state
In the safe state, the outputs are switched off (0 V). The disconnection is done externally in the
higher-level system.
Performance Level (PL)/SIL Level
Due to the galvanic isolation of load and operating voltage, the design of the devices allows
the fault exclusion of voltage carry-over to safely disconnected equipment with a single fault
safety of category 3 for safety functions up to performance level d (according to EN ISO 13849).
The maximum achievable Safety Integrity Level is SIL CL2 (according to EN 62061:2016, section
6.7.7).
The device is part of a safety-related overall system. The overall system must always be evalu-
ated as a whole with regard to the requirements of EN ISO 13849-1 and EN 62061.
Safety characteristic data for the galvanic isolation
Characteristic data
Value
MTTF
See ”Technical data”
Lifetime
20 years
Diagnostic coverage
0…99 %
Determination via FMEA
according to ISO 13849-2: 2013
NOTE
The calculation of MTTF
D
data of electronic components is done according to ISO
13849-1:201, Annex C.5: "MTTF
D
data of electrical components" and D.1: "Parts count
method".
