Festo 1971599, Manual

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Contents and general instructions
XXV
Festo P.BE-CPX-FVDA-P2-EN en 1209NH English
Term/abbreviation Significance
F-System Safety-related system that moves to a safe status when dangerous system
and device errors occur.
GSDML/GSD Equipment master file (Geräte-Stammdaten-Datei) in XML format
I/O illustration Process image
i-Parameter Technology-specific individual parameters of a specific F-Device
M-switch
(Low side switch) Switch in the 0 V current path of an output channel.
Further information (
P-switch).
Output channel Independently switchable output that can be switched over two redundant
switch elements in the forward and return path of the circuit.
CH0, CH1 and CH2 are independent output channels that can be switched
internally in 2 channels.
Passivation Safety function in which the output module CPX-FVDA-P2 switches off all
output channels or only defective output channels (channel-wise
passivation), dependent on the respective error. Instead of the
programmed values, the so-called replacement values (0) are then
effective.
The passivation of the module takes place automatically, e.g.:
– with errors in the safety-oriented communication (PROFIsafe)
– with self-test errors
– with channel errors only if “channel-wise passivation” is switched off
( Channel-wise passivation).
After passivation of the module, a regular reentry is required (standard
process of PROFIsafe for acknowledgment).
If channel-wise passivation is switched on, in case of a channel error
only the output channel involved is passivated. For depassivation of the
output channel, an acknowledgment signal through the process image is
required (
section 1.2.3).
Performance Level
(PL ..., cat. ...) Discrete level that specifies the capability of safety-related parts of a
controller to fulfil a safety function under defined conditions. In DIN EN ISO
13849-1, categories and 5 performance levels (PL a to PL e) are defined.
– Category (cat.) is a measure of the capability of a safety-oriented part of
a controller to resist errors and of their subsequent behaviour in case of
error, which is achieved through the structure of the layout of the parts,
error recognition and their reliability.
– PL a is the lowest and PL e the highest level.