PROPORTIONAL GAIN (potentiometer P5)
The gain can be adjusted in a range between 5 and 50 with potentiometer P5.
The proportional gain is factory-adjusted to its maximum (50).
The proportional gain can be adjusted to reduce oscillations and overshoot:
• To increase the gain, turn P5 clockwise.
• To decrease the gain, turn P5 counterclockwise.
There are 14 turns between the maximum value and the minimum value (there is no limit stop).
OPTION : PRESSURE SWITCH
The PULSTRONIC valve is also available with a PNP pressure switch (option no.
2
: 6th digit in the order code).
Example:
605 _ _ 2_ _
100%
PMR
5%
0
-5%
0,5V
1mA
10V
20mA
Option/function
pressure switch
Connection for relay
activation
Transistor
output
Logic
(balanced)
Pin 2 (GND)
and pin 4
Open collector
P N P
Signal HIGH
D N
0,5
4
7
12
Setpoint not reached
Setpoint
reached
This window size can be adjusted between ±2,5 % and ±10 % at maximum with potentiometer P6.
The maximum output current at pin 4 is 500 mA at 24 V DC.
P N P
The signal is triggered as soon as
the output pressure corresponds to
the setpoint
NOTE:
The window size of the output signal is factory-adjusted to ±5 % of the maximum output pressure.
Max.
output
pressure:
100 %
Setpoint not reached
Ø
Ports
Instant fittings
1/8
1/4
1/2
Operating principle
C
= Setpoint
P
= Development of output pressure
P R T = Pressure switch (0 = idle; 1 = activated)
: Window size of pressure switch
Pressure switch adjustment
1 - Connect the PULSTRONIC (see chapters on pneumatic and electrical connection).
Do not yet apply pressure to the valve.
2 - Turn potentiometer P6 clockwise to its maximum value. There are 14 turns between the maximum value and the minimum value
(there is no limit stop).
3 - Connect a LED with a resistance of 4.7 K
Ω
in series
between pin 4 and GND.
4 - Apply a setpoint equivalent to half of the desired total window size (without supplying pressure to the valve).
Example: If you need a pressure switch window size of ±300 mbar for a PULSTRONIC of 0 - 3 bar, a setpoint of 1 volt (10 %) is
required (0.3 bar = approx. 10 % of 10 volts).
5 - Turn potentiometer P6 counterclockwise until the LED status is changed.
PNP
(0V)
2
4
(+ 24V)
4,7 k
Ω
G N D
8
PULSTRONIC
INSTALLATION
C2
C3
C1
0
P2
P3
P1
0
1
0
PRT
P
C
