■
■
Change the switch point by external potentiometer
(1 k
Ω
Ω
potentiometer)
• If the system pressure exceeds the preset switch point, the pressure
sensor is to provide a switched signal.
• Different operating steps require different preset switch points.
They can be set by an external potentiometer with clear scale and
markings for the different operating steps.
Wiring diagram:
→
→
example 1, page 25
.
29
ENGLISH
Parameter setting for typical applications
SP1 = 25
OU1 = Hno
Basic settings: Without influence by the potentiometer the output
1 switches when the value of 25 bar is exceeded.
InP2 = U
The potentiometer provides a control voltage.
ILP2 = 0.00
When the potentiometer is positioned at the left end stop, 0 V
are supplied, no influencing of the switch point.
IHP2 = 10.00
When the potentiometer is positioned at the right end stop,
10 V are supplied, maximum influencing of the switch point.
IEP2 = 50
When the potentiometer is positioned at the right end stop SP1
is to be increased by max. 50 bar.
Display: Dmod = P1: system pressure is displayed.
Dmod = P2: shifting of the switch point in bar.
IEP2 = 50
25
75
0 V
0 k
Ω
10 V
1 k
Ω
U
ext
SP1[bar]
above the line output 1 is switched
