3. Installation
3−19
Festo P.BE−MPA−EN en 0802c
3.4.5
Vacuum / low pressure operation
Note
The 2x2/2−way valves with Ident. code D, I and the
2x3/2−way valves with Ident. code N, K, H are not suitable
for vacuum or low pressure operation if they are supplied
via connection 1.
·
Operate these valves in a separate pressure zone.
·
The operating pressure for this pressure zone must be
set in accordance with the diagram in Fig.A/1.
If valves are used for switching vacuum, filters must be
used in the suction line in order to avoid functional
damage due to dirt.
The following conditions must be fulfilled before you can
operate your MPA−S valve terminal at supply connection 1
with vacuum or low pressure between −0.9
Ū
3 bar:
The pilot control of the valve solenoid coils is operated
with external closed−loop regulated pilot air.
The valve terminal is fitted with the following valve plates
and, in some cases has further pressure zones.
Valve plates
Pressure zone with
vacuum or
low−pressure supply
via connection 1
1)
The pressure zone must be fitted only with the following valve plates:
5/2−way valve, single−solenoid (Ident. code M)
5/2−way valve, double−solenoid (Ident. code J)
5/3−way valves (Ident. codes B, E and G)
3/2−way valve (Ident. code W and X) see
2)
and the following note
Pressure zone with
over pressure supply
3)
via connection 1
The pressure zone can also be fitted with the following valve plates:
2x3/2−way valves (Ident. code H, K and N)
2x2/2−way valves (Ident. code D and I), see also the following note
1)
The valve plates with Ident. code D, H, K, N and I are not suitable for vacuum or low−pressure
operation if they are supplied via connection 1
2)
in accordance with diagrams in appendix A, Fig.A/2
3)
in accordance with diagrams in appendix A, Fig.A/1
Tab.3/2:
Valve plates
Summary of Contents for MPA-ASI Series
Page 2: ......
Page 4: ...Contents and general instructions II Festo P BE MPA EN en 0802c...
Page 8: ...Contents and general instructions VI Festo P BE MPA EN en 0802c...
Page 18: ...Contents and general instructions XVI Festo P BE MPA EN en 0802c...
Page 19: ...Summary of components 1 1 Festo P BE MPA EN en 0802c Chapter 1...
Page 55: ...Fitting 2 1 Festo P BE MPA EN en 0802c Chapter 2...
Page 71: ...Installation 3 1 Festo P BE MPA EN en 0802c Chapter 3...
Page 106: ...3 Installation 3 36 Festo P BE MPA EN en 0802c...
Page 107: ...Commissioning 4 1 Festo P BE MPA EN en 0802c Chapter 4...
Page 128: ...4 Commissioning 4 22 Festo P BE MPA EN en 0802c...
Page 129: ...Maintenance and conversion 5 1 Festo P BE MPA EN en 0802c Chapter 5...
Page 169: ...Technical appendix A 1 Festo P BE MPA EN en 0802c Appendix A...
Page 186: ...A Technical appendix A 18 Festo P BE MPA EN en 0802c...
Page 187: ...Supplementary component summary B 1 Festo P BE MPA EN en 0802c Appendix B...
Page 201: ...Index C 1 Festo P BE MPA EN en 0802c Appendix C...
Page 202: ...C Index C 2 Festo P BE MPA EN en 0802c Contents C Index C 1...
