17.7.17
Elektropneumatic positioner DigiPos
6. Commissioning
22
6. Commissioning
Operating elements on the positioner
Fig. 19 Positioner (Circuit board with connection terminals)
Tab. 5 DIP Switches
6 . 1 Operation
Setpoint programming can be switched with DIP4 switch from the 4-20 mA input to an internal
potentiometer.
The effective range of the setpoint input can be reversed by signal inversion with switch DIP2 (4
mA=open, 20 mA=closed).
6 . 2 Zero point setting and stroke alignment
(only necessary for dismounting the valve)
Stroke alignment is started by setting the DIP3 switch to "on". The valve is fully closed. It then opens
fully and closes completely once more. The end positions of the position encoder are then meas-
ured and permanently programmed in the DigiPos. During stroke alignment a flashing "A." appears
on the position display. When alignment has been completed a permanent "A0" appears on the
position display. The DIP3 switch can then be switched off again.
DIP Off On
DIP 1 Firmware upload
DIP 2 Standard target value:
4mA closed, 20mA open
Target value inversion:
4mA open, 20mA closed
DIP 3 Automatic stroke adjustment
DIP 4 Target value from internal potentiometer Target value from current receiver 4-20mA
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