Operation and maintenance instructions
Series PRE proportional pressure regulator
Analog /preset version
5000024670
Ver. 01
18
PIN
ANALOG
PRESET
1 24 VDC
Power supply
Connect to the positive pole (24VDC) and to the negative pole (GND) of the power supply.
2
GND
3
IN+
Input of voltage (0-10V) or current (4-20mA) reference signal
Connect to the positive pole (IN+) and to the negative pole (IN-) of the
reference signal generator.
Internal resistance with voltage input: >10kΩ. Use reference signal generator
with low impedance and with output current >1mA@10V.
Internal resistance with current input: 100Ω.
It is mandatory to connect all negative poles of the power supply and the
reference signal generator together (pin 2 and pin 4).
IN1
First
digital
input.
4
IN-
IN2
Second
digital
input.
5 Vout+
Voltage analog feedback signal (0-5V)
Connect the positive pole (Vout+) and the negative pole (Vout-) to the voltage
input.
Output resistance: <10MΩ.
Do not connect the negative pole (Vout-) with other negative poles (pin 2 and
pin 4): as noise, input signal errors or feedback signal errors might occur.
IN3
Third
digital
input.
6 Vout-
IN4
Fourth
digital
input.
7 Iout+
Current analog feedback signal (4-20mA)
Connect to the positive pole of the current input.
Connect the negative pole of the current input to GND (pin 2).
IN5
Fifth
digital
input.
8
OUT
Digital output signal (0-24V)
Connect to a digital input.
If the input is of the NPN type, use pin 1 (24VDC) as reference of digital input; otherwise if
the input is of the PNP type, use pin 2 (GND) as reference of digital input.
Output resistance: >15MΩ. Max current: 50mA.
