3. Installation
3−8
Festo P.BE−MPAL−EN en 1008NH
External pilot air supply
If the operating pressure lies below 3bar or abo ve 8 bar,
pilot control of the solenoid coils must be operated with
an external pilot air supply.
Note
·
Use preferably closed−loop regulated external pilot air.
Reliable faultless operation of the valve terminal is then
possible, e.g. even with fluctuating operating pressure.
·
The external pilot air supply is supplied centrally for all
solenoid coils via pilot connections(12/14) on the right−
hand end plate. This also applies when the valve ter
minal is operated with two pressure zones.
·
For external pilot air supply the pilot air pressure must
be adapted to the operating pressure, but only within
the values of 3 ... 8 bar .
The conversion between the internal and external pilot air
supply is described in Chapter
3.3.2
Valve terminal MPA−L with pressure zone separation
The pressure zones are separated from each other by special
sub−bases (see Chapter 1.5.5). Each pressure zone must be
supplied by pneumatic supply plate and via a right−hand end
plate with side connections with compressed air. The position
of the supply plate within the pressure zone (left, centre or
right) is arbitrary.
By fitting a second supply plate within a pressure zone you
can provide additional supply air and exhaust air to optimise
the ventilation and exhaust performance of the valve ter
minal.
For each additional pressure zone a special sub−base is re
quired for separation and a special pneumatic supply plate is
required for supply (see Fig.3/1 and Fig.3/2).
Содержание MPA-L Series
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Страница 8: ...Contents and general safety instructions VI Festo P BE MPAL EN en 1008NH ...
Страница 15: ...Overview of components 1 1 Festo P BE MPAL EN en 1008NH Chapter 1 ...
Страница 40: ...1 Overview of components 1 26 Festo P BE MPAL EN en 1008NH ...
Страница 41: ...Mounting 2 1 Festo P BE MPAL EN en 1008NH Chapter 2 ...
Страница 55: ...Installation 3 1 Festo P BE MPAL EN en 1008NH Chapter 3 ...
Страница 85: ...Commissioning 4 1 Festo P BE MPAL EN en 1008NH Chapter 4 ...
Страница 100: ...4 Commissioning 4 16 Festo P BE MPAL EN en 1008NH ...
Страница 101: ...Conversion and maintenance 5 1 Festo P BE MPAL EN en 1008NH Chapter 5 ...
Страница 128: ...5 Conversion and maintenance 5 28 Festo P BE MPAL EN en 1008NH ...
Страница 129: ...Technical appendix A 1 Festo P BE MPAL EN en 1008NH Appendix A ...
Страница 141: ...Supplementary overview of components B 1 Festo P BE MPAL EN en 1008NH Appendix B ...
Страница 150: ...B Supplementary overview of components B 10 Festo P BE MPAL EN en 1008NH ...
Страница 151: ...Index C 1 Festo P BE MPAL EN en 1008NH Appendix C ...
Страница 152: ...C Index C 2 Festo P BE MPAL EN en 1008NH Contents C Index C 1 ...