Festo CPA VI Series Manual page 51

3. Installation
External pilot air
1 Control pressure
12/14 (bar)
2 Work pressure P1
(bar)
3 Start-up pressure
Fig. 3/3: External pilot air diagram for valve sub-bases CPA10 with Ident. codes N, K, H
Festo P.BE-CPA-EN en 0207c
If the supply pressure of your CPA valve terminal does not lie
between 3...8 bar, you must operate the terminal with exter-
nal pilot air. In this case, the auxiliary pilot air is supplied ex-
ternally via connection 12/14.
Please note
Used regulated pilot air (3...8 bar). Reliable and faultless
•
operation of the CPA valve terminal is then possible.
If your CPA valve terminal is fitted with valve sub-bases
•
with Ident. code H, K or N (3/2-way valves), the external
pilot air must be set to correspond with the supply pres-
sure at which these valve are operated (see diagrams).
1
2
3
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