Festo Smart cubic CPV-SC Series, Manual

Page: 35 / 80

3. Installation
3-9
Festo P.BE-CPVSC-EN en 0112NH
External auxiliary pilot air
If the supply pressure of your CPV-SC valve terminal lies in
the range - 0.9 to 3 bar, you must operate it with external
auxiliary pilot air. In this case the auxiliary pilot air is supplied
externally via connection 12/14.
Please note
– Use regulated auxiliary pilot air (3 to 8 bar). Reliable
faultless operation of the CPV-SC valve terminal is then
possible.
– Please note that the regulated pilot air for all the valve
sub-bases is supplied via the left-hand end plate. This
also applies if the CPV-SC valve terminal is operated with
different pressure zones (see diagram).
– If your CPV-SC valve terminal is fitted with valve plates
with Ident code J (5/2-way valve), the auxiliary pilot air
must be set to correspond to the supply pressure with
which the valve is operated (see diagrams).
1 Control pressure
(connection
12/14), [bar]
2
Supply pressure
(connection 1),
[bar]
0 1 4 6 2 3 5
0
0,5
1
1,5
2
2,5
3
7 8
3,5
4
1
2
Fig. 3/2: Auxiliary pilot air diagram for valve plate with Ident code J