Pressure switch PA-22 PS / PAA-22 PS
Connector pin assignment M12
Pin 1: +VCC (8…40 V DC)
Pin 2: Switch output 2
Pin 3: GND
Pin 4: Switch output 1
Pin 5: Analog output
The switch outputs are factory configured as PNP (switch switches load to +VCC) or
NPN (switch switches load to ground) and can be programmed independently. The
following functions can be configured for each switch output: hysteresis / window
function, normally open / normally closed, time delay (0…5 seconds).
If a meter is connected to the analog output, it must have an internal resistance of at
least 30 kΩ. Though the pressure switches are already configured at the factory, the
configuration can be changed via the dV-22 PP programmer. Time delay can only be
changed with a PC / laptop running “Pressure Switch Console” software.
Connection diagram
NPN switch output with
external load (R
L
)
PNP switch output with
external load (R
L
)
Switch output
(pin 4 or pin 2)
+V
CC
R
L
R
L
GND
Pressure Switch PA-22 PS / PAA-22 PS - 3 -
Pressure connection
Electrical
connection M12
Switch output
(pin 4 or pin 2)
Analog output
GND
Analog output
(pin 5)
V
Voltmeter
(R
i
> 30 kΩ)
