10
Festo — CPX-F8DE-P — 2022-10d
Safety
NOTICE
Information on compliance with a safety classification
• Test the functionality of the safety device at adequate intervals. Recommendation:
• at least 1x per year for PL d
• at least 1x per month for PL e
The operator is responsible for selection of the type of test and the time intervals between the tests.
• Conduct the tests in order to ensure that the correct function of the safety device is verified and
documented in interaction with all components.
•
Ensure that, after every security requirement resulting from a self-diagnostic test, the system
undergoes troubleshooting and a restart under the supervision of the responsible personnel.
1.7
Failures due to a common cause (Common Cause Failure – CCF)
Common cause failures cause the loss of the safety function, since all channels in a multichannel
system fail simultaneously.
The following measures ensure that common cause failures are prevented:
–
Comply with operating voltage range
–
Comply with signal voltage range
–
Comply with temperature and environmental conditions.
The application may result in additional measures to avoid common cause failures.
1.8
Requirements for product use
–
Make this description available to the design engineer, installation technician and personnel
responsible for commissioning the machine or system in which this product is used.
–
Make sure that the specifications in the documentation are observed at all times. Also comply with
the documentation for the other components and modules (e.g. bus nodes, pneumatics, etc.).
–
Take into consideration the legal regulations applicable for the location as well as:
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instructions and standards
–
regulations of the testing organisations and insurers
–
national specifications.
–
Remove all packaging, such as foils, caps and cardboard. The material used in the packaging has
been specifically chosen for its recyclability (exception: oiled paper = residual waste).
–
Assembly must be performed in a professionally correct manner.
To maintain the IP degree of protection:
–
screw the manifold block tightly to seal it
3.3 Installation of the electronics module
–
assemble cable entries and seals in a professionally correct manner
–
seal unused connections with cover caps.
1.8.1
Technical prerequisites
General technical prerequisites for correct and safe use of the product:
–
Comply with all limits of the product defined by the technical data
Only then is operation of the product guaranteed in accordance with the relevant safety regulations.
–
When connecting standard auxiliary components, also observe the specified limit values for elec-
trical connection values and ambient conditions.
