Common Cause Failures (Ccfs); Product Identification - Festo CPX-FVDA-P Mode D'emploi

CPX-FVDA-P...
Note
Work on safety engineering systems may only be carried out by authorised spe-
cialists with a sound knowledge of safety engineering.

Common cause failures (CCFs)

Common cause failures result in loss of the safety function, as in this case both
channels in a two-channel system fail simultaneously.
The following measures ensure that common cause failures can be prevented:
– Comply with operating voltage limits
– Comply with temperature range
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Product identification

The module identifier and the product rating plate are used to identify the product.
The module identifier is visible through the transparent cover on the connection
block.
Module identifier
Fig. 1: Module identifier for output module CPX-FVDA-P
Festo CPX-FVDA-P... 1011NH English
Meaning
– Module identifier 1 ;
FVDOP (F=Safety; V=Valves; D=Digital;
O=Outputs; P=PROFIsafe)
1
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