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For your safety
108366_en_01
PHOENIX CONTACT
1.4.3
Safety of machines or systems
Draw up and implement a
safety concept
The machine or system manufacturer and the operator are responsible for the safety of the
machine or system and the application in which the machine or system is used. In order to
use the device described in this document, you must have drawn up an appropriate safety
concept for your machine or system. This includes risk assessment according to the direc-
tives and standards mentioned in Section “Directives and standards” on page 11.
Risk assessment, valida-
tion and function test
•
Before using the device, perform risk assessment for the machine or system.
•
Validate your entire safety system.
•
Carry out a new validation every time you make a safety-related modification.
•
Perform a function test on a regular basis.
Achievable safety integrity
Functional safety is guaranteed for the device as a single component. However, this does
not guarantee functional safety for the entire machine or system. In order to achieve the
desired safety level for the entire machine or system, define the safety requirements for the
machine or system, as well as how to implement them, from both a technological and orga-
nizational perspective.
1.4.4
Safety when starting applications
Start conditions
Take the following into consideration when determining the start conditions for your machine
or system:
–
The machine or system may only be started if it can be ensured that nobody is present
in the danger zone.
–
If required: meet the requirements of EN ISO 13849-1 with regard to the manual reset
function.
Pressing a reset button must not cause automatic startup of a dangerous machine func-
tion.
–
Meet the requirements of EN ISO 12100 with regard to closing safety equipment:
Closing of safety equipment must not cause automatic startup of a dangerous machine
function. A separate start command must be used. For exceptions, see EN ISO 12100
or the relevant C standards.
1.5
Directives and standards
The directives and standards complied with by the PSR-CT safety switches can be found in
the certificate issued by the approval body and in the EC declaration of conformity.
These documents are available on the Internet.
For separate notes on FCC / IC conformity, refer to the Appendix “FCC / IC conformity” on