Operating instructions DFA 127 Full Power Rev. B 11/2006 Page 7 of 20
5 Operating instructions
5.1 Mech. control elements and indication
1 Mechanic BDI with 3 positions (control toggle switch)
2 Reset button
3 Status signal
Mechanical BDI (control toggle switch)
The following operational modes can be set up with the 3-position toggle switch on
the side cover:
Manual operation
In this operation mode, the DFA works as a normal door-closer. It can easily be
opened manually, and then closes automatically. The connected actuating ele-
ments are inactivated.
Automatic
The door opens and closes automatically, either by activation of an actuating ele-
ment or by pushing with activated touch control.
Continuously open
The door opens and remains in the open position. If an obstacle is encountered
while opening, the DFA will attempt during the next few seconds to get the door
into the set open position. If the obstacle is still present, the current position will be
accepted as the continuously open position.
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