Festo PDAD Series, Примечание к применению

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Layout of purge air regulation for reducing air consumption
Application note – Energy management function at adsorption dryer PDAD – 1.10 Page 14 of 17
2.6 Establishing a connection between switching device and the energy management
contact at the PDAD
The adsorption dryer is shipped with activated purge air function as a default setting, i.e. purge air is also active
at times when little or no purge air is required. There’s a plug inserted into the socket for the energy management
function (EM) to this end with pre-set jumper (see figures 7 and 8).
This jumper establishes a permanent connection between terminals 1 and 2 at the DIN plug which corresponds to
an activated purge air function.
Figure 7: PDAD default status – DIN plug with pre-set jumper connected to EM contact
Figure 8: PDAD default status – jumper between terminals 1 and 2 in the insert of the DIN plug