4. Commissioning
4-18
Festo P.BE-MPA-EN en 1108e
4.6
Commissioning instructions for the proportional pressure regulator
Note
– Make sure there is sufficient space for the connecting
elements. In this way you will prevent the connecting
cable from being bent.
– Make sure that the proportional pressure regulator is
not subjected to high-frequency irradiation
(e,g, by radio sets, mobile telephones or other devices
which cause interference). In this way you will avoid
increased tolerances in the output pressure
(compare specifications on EMC in Appendix A).
– The proportional pressure regulator interprets nominal
values which are smaller than 1 % full scale as zero point
switching off, i.e. the valve is force-ventilated and
therefore assumes a defined position.
– Pressurise the proportional pressure regulator with an
input pressure at least 1 bar higher than the maximum
required output pressure. A proportional output
pressure P2 sets itself as the nominal value. Tab. 4/8
shows the output pressure which is assigned to the end
ranges (1 % FS or 100 % FS) of the nominal value.
– When switching off the proportional pressure regulator,
make sure that first the supply pressure, then the supply
voltage is switched off.
– If the load voltage is switched off (for example, with
EMERGENCY OFF); the last set output pressure of the
proportional-pressure regulator remains intact. In the
medium term the pressure at the output can increase or
diminish. For the QX variant of the proportional-pressure
regulator, this means that the last set pressure is
applied at output 2 of the sub-base. For the QZ-variant of
the proportional-pressure regulator, the last set
pressure in channel 1 applies, i.e. all valves of this
pressure zone are pressurized with the last pressure set.
Summary of Contents for 530411
Page 2: ......
Page 4: ...Contents and general instructions II Festo P BE MPA EN en 1108e ...
Page 16: ...Contents and general instructions XIV Festo P BE MPA EN en 1108e ...
Page 17: ...Summary of components 1 1 Festo P BE MPA EN en 1108e Chapter 1 Summary of components ...
Page 59: ...Fitting 2 1 Festo P BE MPA EN en 1108e Chapter 2 Fitting ...
Page 73: ...Installation 3 1 Festo P BE MPA EN en 1108e Chapter 3 Installation ...
Page 108: ...3 Installation 3 36 Festo P BE MPA EN en 1108e ...
Page 109: ...Commissioning 4 1 Festo P BE MPA EN en 1108e Chapter 4 Commissioning ...
Page 172: ...5 Maintenance and conversion 5 42 Festo P BE MPA EN en 1108e ...
Page 173: ...Technical appendix A 1 Festo P BE MPA EN en 1108e Appendix A Technical appendix ...
Page 209: ...Index C 1 Festo P BE MPA EN en 1108e Appendix C Index ...
Page 210: ...C Index C 2 Festo P BE MPA EN en 1108e Contents C Index C 1 ...