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OPERATING MANUAL
PRESSURE SWITCH
PA-22 PS
PROGRAMMER
dV-22 PP
PROGRAMMING SOFTWARE
Pressure
Switch Console
CONTENTS
Pressure switch PA-22 PS / PAA-22 PS
Connector pin assignment M12 3
Connection diagram 3
Programmer dV-22 PP
Overview 4
Programming / Pressure switch conguration 5
Programming with the Programmer dV-22 PP 5
Programming with the PC / Laptop 5
Connections of the dV-22 PP
Power supply connection M12 plug 6
Converter connection connector plug 6
Pressure switch connection M12 socket 6
Display 7
Navigating in the Menu
Functions of the keys 7
Menu structure 8
Programming mode 9
Switching thresholds 9
Switching functions 9
Software “Pressure switch console”
Selection of the serial port 10
Selection of the pressure unit display 10
Read-out and programming of the pressure switch 10
Display of the pressure value and status of the switches 11
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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 congured as PNP (switch switches load to +VCC) or
NPN (switch switches load to ground) and can be programmed independently. The
following functions can be congured 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 congured at the factory, the
conguration 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 (RL)
PNP switch output with
external load (RL)
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
(Ri > 30 kΩ)
Programmer dV-22 PP
The conguration of the pressure switch can be changed with the dV-22 PP programmer.
1
5
2
3
6
4
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1) M-12 plug Power supply connection (8…40 V DC)
2) 5-pole connector Connection to PC / laptop with a converter (K-107 / K-104B)
3) M-12 socket Connection of the pressure switch
4) LED Indicates the status of the switches (switch 1 and switch 2)
5) LCD Main display
6) Keys SELECT and ENTER
Programmer dV-22 PP
Programming / Pressure Switch Conguration
The connected pressure switch can be programmed either via keystroke with the
programmer alone or with a PC / laptop connected to the programming device.
Programming with the programmer dV-22
The programmer requires a power supply (see “Connections”).
It is operated with the two keys (see “Menu Navigation”).
Programming with a PC / Laptop
If an interface cable from KELLER (K-107 / K-104 B) is connected to the programmer,
programming can be carried out with a PC / laptop using the “Pressure Switch Console”
software. In this case, the power supply for the programmer comes directly via
the converter.
Power supply
The programmer is connected between the
power supply and the pressure switch
Pressure switch
Software (Pressure Switch Console)
for comfortable programming with a
PC / laptop
Pressure switch
Programmer dV-22 PP - 5 -
Connection to the
PC / laptop with a
K-107 / K-104 B
Connections of the dV-22 PP
Power supply connection M12 plug
The pin assignment of the programmer is the same as the
pressure switch:
Pin 1 : +Vcc (8...40VDC)
Pin 2 : Switch output 2
Pin 3 : GND
Pin 4 : Switch output 1
Pin 5 : Analog output
All pins of the plug are connected with the plug of the pressure switch. Thus, the programmer can be used directly with the application and the functions of the pressure
switch remain preserved.
Attention: The switch outputs are inactive (open) during the programming mode.
Connection to PC (Binder Plug)
The connector plug is used for communication with a PC /
laptop. The interface cable (K-107 / K-104B) can be connected here.
Pressure switch connection M12 socket
The pressure switch is connected to the M12 socket. If
necessary, a M12 extension cable (5-pole) can be used
between the programmer and the pressure switch.
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3
2
4
1
5
Coding
Display
In normal mode the programmer displays the actual pressure value of the pressure
switch (only for pressure switches with an analog output), and the status of the switch
outputs with LED’s.
LEDs for the indication of the
status of the switch outputs
Pressure measuring units
Pressure value
Programmer dV-22 PP - 7 -
Menu Navigation
Navigation in the display menu is made with the two keys SELECT and ENTER.
Functions of the keys
SELECT: Navigate forwards within the menu
ENTER: Select the menu item
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Menu Navigation
Menu structure
Switch output I:
High switching
threshold (High)
Switch output II:
Low switching
threshold (Low)
Switch output I:
Low switching
threshold (Low)
Switch output II:
High switching
threshold (High)
Switch output I:
Switching function (Fct.)
(Hysteresis / window,
NO/NC, OFF)
Switch output II:
Switching function (Fct.)
(Hysteresis / window,
NO/NC, OFF)
Switch output I:
Low switching
threshold (Low)
Switch output II:
High switching
threshold (High)
Switch output II:
Low switching
threshold (Low)
Switch output I:
Switching function (Fct.)
(Hysteresis / window,
NO/NC. OFF)
Switch output II:
Switching function (Fct.)
(Hysteresis / window,
NO/NC. OFF)
Return to Normal
Mode (END)
Change the pressure
display unit ( Unit)
bar
SELECT
Change the settings of
the switch outputs (S Set)
Programming mode
Switch output I:
High switching threshold (High)
Pressure display
(normal mode)
Show the
conguration
Change the
conguration
SELECT
ENTER
ENTER
ENTER
SELECT
MPa
PSI
mbar
kPa
The currently selected menu item is
indicated at the bottom of the display
with arrows. These point to the corre-
sponding designations:
I, II, High, Low, Fct.
ENTER
Saves the
selection
Menu Navigation
Programming mode
Programming mode (see the menu structure) allows the switching thresholds and
switching functions to be set.
Example: Changing the switching threshold
The switching threshold to be changed is selected with SELECT (see the menu structure). The currently selected menu item is indicated at the bottom of the display: I, II,
Low, High, Fct. The arrows point to the corresponding designations. E.g.: if the arrows
point to I and High --> the high switching threshold of switch output 1 can be changed.
This value is then released for change by pressing ENTER (ashing arrow). The value
is decreased with SELECT and increased with ENTER. If no button is pressed for about
5 seconds, the programming device saves the value displayed to the pressure switch
(the arrows stop ashing).
Switching functions (Fct.)
Various functions can be congured for the switch outputs.
Hysteresis (H): When the high switching threshold is exceeded, the output
closes. It only opens again when the value goes below the low
switching threshold. Application example: 2-point controller.
Window (F): The switch output is closed between the low and high swit-
ching thresholds. Outside this range it is open. Application
example: Alarm when the pressure is outside a dened range.
Normally Open (no):
The switch contact is normally open.
Normally Closed (nc):
The switch contact is normally closed (inverse of NO)
Off (OFF): The switch contact is always open
To change the corresponding
switching function, press ENTER
in the programming mode repeatedly until the required
function is displayed. Press
SELECT to go to the next menu
item: this simultaneously saves
the displayed switching function
to the pressure switch.
P/bar
P/bar
High
NO
NC
NC
t
t
1
0
1
0
0
1
0
1
Low
High
Low
NO
window function hysteresis function
Programmer dV-22 PP - 9 -
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“Pressure Switch Console” Software
If the programmer is connected to a PC / laptop via a interface cable (K-107 / K-104
B), the conguration of the pressure switch can easily be made with the “Pressure
Switch Console” program.
Setting the serial port
The serial connection that is used to
connect the programmer to the PC / laptop
must be entered under Edit / Port. If no COM
numbers are listed, the connection must be
set with „Set COMPort“.
Selection of the pressure measuring unit
The pressure unit (bar, PSI or MPa), in
which the program displays the pressure
values, can be selected.
Read-out and programming of the pressure switch
By pressing “Read out”, the data of the pressure switch, which is connected to the
programmer, is read. The congurations (switching thresholds, switching functions,
switching time delays) can now be changed for the switch outputs 1 and 2.
Press “Program” to load the changed values back to the pressure switch. Due to
the reduced resolution of the pressure switch, the pressure values displayed may
change slightly. The nearest possible value is set.
When programming is complete, the pressure switch can be disconnected and used:
the conguration in the pressure switch remains stored.
“Pressure Switch Console” Software
Display of the pressure values and switch status
With the console, the actual pressure value of the pressure switch and the status
of the switch outputs can be displayed. Press “Display” to show these values. However, the actual pressure value can only be displayed if the pressure switch has an
analog output.
Pressure Switch Console - 11 -
A pressure trend curve can be displayed and recorded graphically
with the KELLER “Read30” software.
KELLER AG für
Druckmesstechnik
St. Gallerstrasse 119 • CH-8404 Winterthur
www.keller-druck.com Tel. +41 (0)52 - 235 25 25 • Fax +41 (0)52 - 235 25 00
DECLARATION OF CONFORMITY
Herewith we declare, that the following product
Pressure Switch PA-22 PS
meets the basic requirements for the electromagnetic compatibility, which are established
in the guidelines of the European Community (89/336/EWG).
This declaration is valid for products of which a drawing, marked with the CE sign, exists,
and which are produced according to this drawing. This explanation has no validity without
such a drawing.
As criteria for the electromagnetic compatibility, the following norms are applied:
EN 61000-6-2 EN 61000-6-3 EN 61000-6-4
This declaration is given for the manufacturer:
KELLER AG für Druckmesstechnik, St. Gallerstrasse 119, CH-8404 Winterthur
in full responsibility by
KELLER GmbH, Schwarzwaldstrasse 17, D-79798 Jestetten
Jestetten, 25 May 2011
H.W. Keller
General Manager
with legally effective signature
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