3 Mounting and installation
Festo – P.BE-MPA-E N – 1309f – English 63
3.6.2 MPA-S valve terminal with pressure zone s eparation
Note
• Operate the valves with ident. code I (2x 2/2-directional control valve) in a separate
pressure zone with separat ed exhaust duct (5) if the MPA-S valve terminal is also
equipped with othe r valves.
• Note the following for an MPA-S v alve terminal, which is operated with an internal
pilot air supply and which has several pressure zones:
– The internal pilot air supply is branched centrally from the supply connection (1)
of the pneumatic interface or from the multiple connector plate ( Fig. 3.6).
– The pressure zone, which is supplied via the supply connection(1) of the pneu-
matic interfac e or the multi-pin plug connection plate must be oper ated at a
pressure t hat corresponds to the required pilot pressure ( diagrams Appendix
A, Fig. A.1 … Fig. A.5).
If t he proportional pressure regulat or is to regulate the operating pressure fo r the valves
on the MPA-S valve terminal, the valves must be positioned to the right of the proportion-
al pressure regulator.
For every pressure zone, a pressure zone seal and a pneumatic air supply plate are re-
quired ( Fig. 3.6).
The ports (1) or (3/5) are:
– for the pressure zone on the outside left of the port pattern or multi-pin plug connection plate.
– for all other pressure zones o n the pneumatic air supply plate which lies within the corresponding
pressure zones. The position of the air supply plate in the pressure zone (left, centre or right) can be
any, but two air supply plates (e.g. of adjacent pressure zones) must not lie next to each other.
By mounting an additional pneumatic air supply plate within a pressure zone, you can
provide additional supply air or ext r act exh aust air.
The following figure ( Fig. 3.6) sho ws the assignment o f the supply and exha ust ports to the valves
using an example of an MPA-S valve terminal with blocked ducts (1), ( 3) and (5).
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