4. Commissioning
4−5
Festo P.BE−MPA−EN en 0302NH
The auxiliary pilot air must reach a pressure of 3 ... 8 bar as
soon as it is switched on, Otherwise, there is no guarantee
that the valve will switch directly (see diagram).
If the pressure is less than 3 bar, there may be a delay before
the valve is switched, in spite of an electric signal being pres
ent. The slow increase in pressure of the complete supply
does not then affect the actuator. The actuator would react
suddenly (e.g. a cylinder would extend or retract, depending
on the valve function).
1
4
2
5 3
14
12
1
2
1
12/14
12/14
3
82/84
2
1
Externally supplied auxiliary pilot air (3 to 8 bar),
branched in front of the safety start−up valve
2
Safety start−up valve (slow build up of pressure of com
plete supply)
Fig.4/1:
Example of valve−cylinder combination with slow
increase in pressure of the complete supply
Содержание VT32 Series
Страница 2: ......
Страница 4: ...Contents and general instructions II Festo P BE MPA EN en 0302NH ...
Страница 8: ...Contents and general instructions VI Festo P BE MPA EN en 0302NH ...
Страница 17: ...Summary of components 1 1 Festo P BE MPA EN en 0302NH Chapter 1 ...
Страница 30: ...1 Summary of components 1 14 Festo P BE MPA EN en 0302NH ...
Страница 31: ...Fitting 2 1 Festo P BE MPA EN en 0302NH Chapter 2 ...
Страница 47: ...Installation 3 1 Festo P BE MPA EN en 0302NH Chapter 3 ...
Страница 74: ...3 Installation 3 28 Festo P BE MPA EN en 0302NH ...
Страница 75: ...Commissioning 4 1 Festo P BE MPA EN en 0302NH Chapter 4 ...
Страница 93: ...Maintenance and conversion 5 1 Festo P BE MPA EN en 0302NH Chapter 5 ...
Страница 122: ...5 Maintenance and conversion 5 30 Festo P BE MPA EN en 0302NH ...
Страница 123: ...Technical appendix A 1 Festo P BE MPA EN en 0302NH Appendix A ...
Страница 133: ...Supplementary overview of components B 1 Festo P BE MPA EN en 0302NH Appendix B ...
Страница 142: ...B Supplementary overview of components B 10 Festo P BE MPA EN en 0302NH ...
Страница 143: ...Index C 1 Festo P BE MPA EN en 0302NH Appendix C ...
Страница 144: ...C Index C 2 Festo P BE MPA EN en 0302NH Contents C Index C 1 C 1 Index C 3 ...
Страница 150: ...C Index C 8 Festo P BE MPA EN en 0302NH ...