Festo CPX Electronic Manual page 29

1. Summary of components
Pneumatic interface for
MPA pneumatics
Festo P.BE−CPX−SYS−EN en 0503b
The pneumatic interface for MPA pneumatics merely pro
duces the mechanical and electrical connection to the MPA
pneumatic modules. Therefore, from the point of view of the
CPX terminal, the MPA pneumatic interface does not count
as an electric module. Instead, the individual MPA pneu
matic modules each represent an electric module with digi
tal outputs for triggering the integrated valves.
Detailed information on the CPX pneumatic interfaces and
MPA pneumatic modules can be found in the manual for the
CPX I/O modules.
Valve terminal pneumatics
The valve terminal pneumatics provide the following:
the common channels for supply and exhaust air
the electric signals from all valve solenoid coils.
Work connections 2 and 4 are provided for each valve loca
tion on the individual pneumatic modules. The valves are
supplied with compressed air via the common channels or via
special supply modules. Both the air and auxiliary pilot air
from the valves are also exhausted via these common chan
nels. Further modules for pressure supply are also available,
e.g. in order to permit work to be carried out with different
work pressures.
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