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
Summary of Contents for VT32 Series
Page 2: ......
Page 4: ...Contents and general instructions II Festo P BE MPA EN en 0302NH ...
Page 8: ...Contents and general instructions VI Festo P BE MPA EN en 0302NH ...
Page 17: ...Summary of components 1 1 Festo P BE MPA EN en 0302NH Chapter 1 ...
Page 30: ...1 Summary of components 1 14 Festo P BE MPA EN en 0302NH ...
Page 31: ...Fitting 2 1 Festo P BE MPA EN en 0302NH Chapter 2 ...
Page 47: ...Installation 3 1 Festo P BE MPA EN en 0302NH Chapter 3 ...
Page 74: ...3 Installation 3 28 Festo P BE MPA EN en 0302NH ...
Page 75: ...Commissioning 4 1 Festo P BE MPA EN en 0302NH Chapter 4 ...
Page 93: ...Maintenance and conversion 5 1 Festo P BE MPA EN en 0302NH Chapter 5 ...
Page 122: ...5 Maintenance and conversion 5 30 Festo P BE MPA EN en 0302NH ...
Page 123: ...Technical appendix A 1 Festo P BE MPA EN en 0302NH Appendix A ...
Page 133: ...Supplementary overview of components B 1 Festo P BE MPA EN en 0302NH Appendix B ...
Page 142: ...B Supplementary overview of components B 10 Festo P BE MPA EN en 0302NH ...
Page 143: ...Index C 1 Festo P BE MPA EN en 0302NH Appendix C ...
Page 144: ...C Index C 2 Festo P BE MPA EN en 0302NH Contents C Index C 1 C 1 Index C 3 ...