Festo MPA-L Series, Описание

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3. Installation
3−7
Festo P.BE−MPAL−EN en 1008NH
To avoid back pressures:
·
Optimise the ventilation and exhaust performance of
the valve terminal e.g. by using lar ger pipe diameters or
additional compressed air supply via pneumatic supply
plates with exhaust via silencers and exhaust plate.
·
Separate exhaust ducts by using pressure zones if
necessary (see Chapter 1.5.3).
3.3 Connecting the valve terminal MPA−L
Connections on the following components are available for
supplying the valve terminal:
To the pneumatic supply plate, type VMPAL−SP
To the right−hand end plate, type VMPAL−EPR−SP
3.3.1 Pilot control of the solenoid coils (pilot air supply)
Internal pilot air supply If the operating pressure lies between 3 ... 8 bar , you can
operate the pilot control of the solenoid coils with an inter
nally branched pilot air supply.
Note
·
Internal pilot air supply is branched centrally from sup
ply connection(1) for all solenoid coils. When operating
the valve terminal with several pressure zones the inter
nal pilot air supply is taken from the pressure zone,
which is directly adjacent to the right−hand end plate
(see Fig.3/1 and Fig.3/2).