Layout of purge air regulation for reducing air consumption
Application note
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Energy management function at adsorption dryer PDAD
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1.10 Page 15 of 17
The jumper must be removed in order to use the EM function. Terminals 1 and 2 at the EM socket are then
connected to the NC contact of the corresponding switching device (manual switch, directly to a pressure switch
or a relay). When the manual switch, the pressure switch or the relay contact is opened, purge air is deactivated.
The dryer should be removed from service before conversion or integration. In order to remove the device from
service, disconnect it from supply power and compressed air supply, and fully depressurise it.
Connection procedure:
1.
Remove the DIN plug from the EM contact.
2.
Insert a small screwdriver into the small depression at the edge of the insert and press the insert out of
the external sleeve of the DIN plug (see figure 9).
Figure 9:
Removing the insert from the DIN plug
3.
Remove the jumper between terminals 1 and 2 (see figure 10).
Figure 10:
Removing the jumper from the DIN plug
