IFM PN2090 User manual

Operating instructions
Electronic pressure sensor
PN2090
PN2091
80274155 / 00 08 / 2020
UKUK

2
Contents
1 Preliminary note���������������������������������������������������������������������������������������������������3
1�1 Symbols used ������������������������������������������������������������������������������������������������3
2 Safety instructions �����������������������������������������������������������������������������������������������4
3 Functions and features ����������������������������������������������������������������������������������������5
3�1 Applications ���������������������������������������������������������������������������������������������������5
4 Function���������������������������������������������������������������������������������������������������������������5
4�1 Operating modes �������������������������������������������������������������������������������������������6
4�2 Communication, parameter setting, evaluation ���������������������������������������������7
4�3 Switching function������������������������������������������������������������������������������������������7
4�4 Analogue function ������������������������������������������������������������������������������������������8
4�5 IO-Link �����������������������������������������������������������������������������������������������������������9
4�5�1 General information ������������������������������������������������������������������������������9
4�5�2 Functions only available via IO-Link communication��������������������������10
5 Installation����������������������������������������������������������������������������������������������������������10
6 Electrical connection������������������������������������������������������������������������������������������ 11
7 Operating and display elements ������������������������������������������������������������������������12
8 Menu������������������������������������������������������������������������������������������������������������������13
8�1 Menu structure: main menu�������������������������������������������������������������������������13
8�2 Explanation of the menu������������������������������������������������������������������������������14
8�2�1 Explanation of menu level 1 ���������������������������������������������������������������14
8�2�2 Explanation of menu level 2 ���������������������������������������������������������������14
9 Parameter setting ����������������������������������������������������������������������������������������������15
9�1 Parameter setting in general �����������������������������������������������������������������������15
9�2 Define operating mode (optional) ����������������������������������������������������������������18
9�3 Configure display (optional)�������������������������������������������������������������������������18
9�4 Set output signals ����������������������������������������������������������������������������������������18
9�4�1 Set output functions����������������������������������������������������������������������������18
9�4�2 Define switching limits for the hysteresis function ������������������������������19
9�4�3 Define switching limits for the window function ����������������������������������19
9�4�4 Scale analogue value �������������������������������������������������������������������������19
9�5 User settings (optional)��������������������������������������������������������������������������������20
9�5�1 Set delay time for the switching outputs ���������������������������������������������20

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9�5�2 Set output logic for the switching outputs �������������������������������������������20
9�5�3 Set damping for the switching signal ��������������������������������������������������21
9�5�4 Set damping for the analogue output �������������������������������������������������21
9�5�5 Zero-point calibration��������������������������������������������������������������������������21
9�5�6 Reset all parameters to factory setting �����������������������������������������������21
9�5�7 Set colour change of the display �������������������������������������������������������22
9�5�8 Graphical depiction of the colour change of the display ���������������������23
9�6 Diagnostic functions ������������������������������������������������������������������������������������25
9�6�1 Read min/max values for the system pressure ����������������������������������25
9�6�2 Read overload processes�������������������������������������������������������������������26
10 Operation���������������������������������������������������������������������������������������������������������26
10�1 Read set parameters ���������������������������������������������������������������������������������26
10�2 Self-diagnostics / fault indications �������������������������������������������������������������26
11 Technical data ��������������������������������������������������������������������������������������������������28
11�1 Setting ranges��������������������������������������������������������������������������������������������28
11�1�1 Setting ranges in operating mode 2��������������������������������������������������28
11�1�2 Setting ranges in operating mode 3��������������������������������������������������28
12 Factory setting �������������������������������������������������������������������������������������������������29
1 Preliminary note
1.1 Symbols used
►Instruction
> Reaction, result
[…] Designation of keys, buttons or indications
→Cross-reference
Important note
Non-compliance may result in malfunction or interference
Information
Supplementary note

4
2 Safety instructions
• The device described is a subcomponent for integration into a system�
- The manufacturer is responsible for the safety of the system�
- The system manufacturer undertakes to perform a risk assessment and to
create a documentation in accordance with legal and normative requirements
to be provided to the operator and user of the system� This documentation
must contain all necessary information and safety instructions for the operator,
the user and, if applicable, for any service personnel authorised by the
manufacturer of the system�
• Read this document before setting up the product and keep it during the entire
service life�
• The product must be suitable for the corresponding applications and
environmental conditions without any restrictions�
• Only use the product for its intended purpose (→ Functions and features).
• Only use the product for permissible media (→ Technical data).
• If the operating instructions or the technical data are not adhered to, personal
injury and/or damage to property may occur�
• The manufacturer assumes no liability or warranty for any consequences
caused by tampering with the product or incorrect use by the operator�
• Installation, electrical connection, set-up, programming, configuration, operation
and maintenance of the product must be carried out by personnel qualified and
authorised for the respective activity�
• Protect units and cables against damage�
• If the devices are used in gas applications with pressures > 25 bar the notes in
chapter 3�1 for devices with the marking **)must be absolutely observed!

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3 Functions and features
The device monitors the system pressure of machines and installations�
3.1 Applications
Type of pressure: relative pressure
Information on pressure rating and bursting pressure → data sheet.
Avoid static and dynamic overpressure exceeding the indicated pressure
rating by taking appropriate measures�
The indicated bursting pressure must not be exceeded�
Even if the bursting pressure is exceeded only for a short time, the unit
may be destroyed� ATTENTION: risk of injury!
The units are vacuum resistant�
Pressure Equipment Directive (PED):
The units comply with the Pressure Equipment Directive� They are
designed for group 2 fluids and are manufactured in accordance with
sound engineering practice� Use of media from group 1 fluids on request�
4 Function
• The unit displays the current system pressure�
• It generates output signals according to the operating mode and the parameter
setting�
• Moreover, it provides the process data via IO-Link�
• The unit is designed for fully bidirectional communication�
So the following options are possible:
- Remote display: reading and display of the current system pressure�
- Remote parameter setting: reading and changing the current parameter
setting�
- IO-Link parameter setting (→ 4.5)�

6
4.1 Operating modes
Operating mode 2
Description Operating mode on delivery�
Application Standard applications�
IODD designation Example PN2090 Factory setting / (CMPT = 2):
At www�ifm�com in the download area of the corresponding article�
Operating mode 3
Description High IO-Link process value and parameter resolution
(device-specific: see IODD suitable for the operating mode)�
The menu items [ou1] and [ou2] are extended by the setting
option [OFF] (→ 9.4.1)�
IO-Link standard command "Flash" is available (→ 4.5.2)�
This operating mode is available as of device status BA�
For the device status see the labelling on the device�
BA xxxx
PNxxxx
Application Improved controllability via IO-Link�
Highly granular setting of set and reset points�
IODD designation Example PN2090 Status_B High Resolution / (CMPT = 3):
At www�ifm�com in the download area of the corresponding
article�
Manual selection of the operating mode see (→ 9.1),
selection of the operating mode via IO-Link interface see → Additional
document: Selection of the operating mode at www�ifm�com�

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4.2 Communication, parameter setting, evaluation
OUT1 (pin 4) • Switching signal for system pressure limit
• Communication via IO-Link
OUT2 (pin 2) • Switching signal for system pressure limit
• Analogue signal 4���20 mA / 0���10 V
4.3 Switching function
OUTx changes its switching status if it is above or below the set switching limits
(SPx, rPx)� The following switching functions can be selected:
• Hysteresis function / normally open: [ou1/ou2] = [Hno] (→ Fig. 1).
• Hysteresis function / normally closed: [ou1/ou2] = [Hnc] (→ Fig. 1).
First the set point (SPx) is set, then the reset point (rPx)�
The hysteresis defined remains even if SPx is changed again�
• Window function / normally open: [ou1/ou2] = [Fno] (→ Fig. 2).
• Window function / normally closed: [ou1/ou2] = [Fnc] (→ Fig. 2).
The width of the window can be set by means of the difference between FHx
and FLx� FHx = upper value, FLx = lower value�
FH
FL
1 2
P = system pressure; HY = hysteresis; FE = window
When set to the window function the set and reset points have a fixed
hysteresis of 0�25 % of the measuring span�

8
4.4 Analogue function
OUT2 is an analogue output:
• [ou2] determines whether the set measuring range is provided as 4���20 mA
([ou2] = [I]) or as 0���10 V ([ou2] = [U])�
• Analogue start point [ASP2] determines at which measured value the output
signal is 4 mA or 0 V�
• Analogue end point [AEP2] determines at which measured value the output
signal is 20 mA or 10 V�
Minimum distance between [ASP2] and [AEP2] = 20 % of the measuring span�
Voltage output 0 ... 10 V:
Factory setting Measuring range scaled
P =
MEW =
ASP =
AEP=
system pressure
final value of the measuring range
analogue start point [ASP2]
analogue end point [AEP2]
In the measuring range of the respective unit the output signal is between 0 and 10 V�
It is also indicated:
• System pressure above [AEP2]: 10���10�3 V
• Fault indication according to Namur: 11 V

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Current output 4...20 mA
Factory setting Measuring range scaled
P =
MEW =
ASP =
AEP=
system pressure
final value of the measuring range
analogue start point [ASP2]
analogue end point [AEP2]
In the measuring range of the corresponding unit the output signal is between 4 and
20 mA�
It is also indicated:
• System pressure above [AEP2]: 20���20�5 mA
• System pressure below [ASP2]: 4���3�8 mA
• Fault indication according to Namur: 21�5 mA
4.5 IO-Link
4.5.1 General information
The device has an IO-Link communication interface which requires an IO-Link-
capable module (IO-Link master) for operation�
The IO-Link interface enables direct access to the process and diagnostic data
and provides the possibility to set the parameters of the unit during operation�
In addition, communication is possible via a point-to-point connection with a USB
adapter cable�
The IODDs necessary for the configuration of the unit, detailed information about
process data structure, diagnostic information, parameter addresses and the
necessary information about the required IO-Link hardware and software can be
found at www�ifm�com�

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4.5.2 Functions only available via IO-Link communication
• HIPC: number of overload processes (→ 9.6.2)�
• HIPS: threshold for the overload counter (→ 9.6.2)�
• Flash: via this standard command, the sensor can be localised in the plant�
When the command is used, the switching status LEDs flash and "IO-L" is
displayed� (Function only available in operating mode [3])�
• Application Specific Tag: freely definable text assigned to the unit�
• Function Tag: freely definable text describing the device function in the plant�
(Function only available in operating mode [3])�
• Location Tag: freely definable text describing the installation location in the
plant� (Function only available in operating mode [3])�
For more detailed information refer to the device-specific IO Device Description
PDF at www�ifm�com�
5 Installation
Before installing and removing the unit: Make sure that no pressure is
applied to the system�
►Insert the unit in a G¼ process connection�
►Tighten firmly� Recommended tightening torque:
Pressure range in bar Tightening torque in Nm
-1���400 25���35
Depends on lubrication, seal and pressure load!
The sensor housing can be rotated by 345° with regard to the process connection�
Do not rotate past the end stop!

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6 Electrical connection
The unit must be connected by a qualified electrician�
The national and international regulations for the installation of electrical
equipment must be adhered to�
Voltage supply according to EN 50178, SELV, PELV�
►Disconnect power�
►Connect the unit as follows:
Core colours
43
2 1
BN
WH
BK
BU
4
1
3
2OUT2
L+
L
OUT1
BK black
BN brown
BU blue
WH white
OUT1: switching output or IO-Link
OUT2: switching output or analogue output
Colours to DIN EN 60947-5-2
Wiring example
2 x pnp 2 x npn
L
L+
3
4
2
1
BU
BK
WH
BN
2: OUT2
4: OUT1 L
L+
3
4
2
1
BU
BK
WH
BN
2: OUT2
4: OUT1
1 x pnp / 1 x analogue 1 x npn / 1 x analogue
L
L+
3
4
2
1
BU
BK
WH
BN
2: OUT2
4: OUT1 L
L+
3
4
2
1
BU
BK
WH
BN
2: OUT2
4: OUT1

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7 Operating and display elements
321
9 10 11
4 5 6 7 8
12
1 to 8: Indicator LEDs
LED 1 Switching status OUT1 (on if output 1 is switched)�
LED 8 Switching status OUT2 (on if output 2 is switched)�
LEDs
2 - 7
System pressure in the indicated unit of measurement
(indication is device-specific)
9: [Enter] button [●]
- Selection of the parameters and acknowledgement of the parameter values�
10 to 11: Arrow keys up [▲] and down [▼]
- Setting of the parameter values (scrolling by holding pressed, incrementally by pressing
once)�
12: Alphanumeric display, 4 digits
- Display of the current system pressure�
- Indication of the parameters and parameter values�

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8 Menu
8.1 Menu structure: main menu
2
RUN
1
Menu items highlighted in grey e�g�
[ FH1 ] are only active when assigned
parameters have been selected�

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8.2 Explanation of the menu
8.2.1 Explanation of menu level 1
SPx/rPx Upper / lower limit for system pressure at which OUTx switches with hysteresis
setting� Requirement: OUTx setting is [Hno] or [Hnc]�
FHx / FLx Upper / lower limit for system pressure at which OUTx switches with window
setting� Requirement: OUTx setting is [Fno] or [Fnc]�
ASP2 Analogue start point for system pressure: measured value at which 4 mA / 0 V
are provided� Requirement: OUT2 setting is [I] or [U]�
AEP2 Analogue end point for system pressure: measured value at which 20 mA / 10 V
are provided� Requirement: OUT2 setting is [I] or [U]�
EF Extended functions / opening of menu level 2�
8.2.2 Explanation of menu level 2
rES Restore factory setting�
ou1 Output function for OUT1:
• Switching signal for the pressure limits: hysteresis function [H ��] or window
function [F ��], either normally open [� no] or normally closed [� nc]�
• Output off [OFF] (function only available in operating mode [3])�
ou2 Output function for OUT2:
• Switching signal for the pressure limits: hysteresis function [H ��] or window
function [F ��], either normally open [� no] or normally closed [� nc]�
• Analogue signal for the current system pressure: 4���20 mA [I] or 0���10 V [U]�
• Output off [OFF] (function only available in operating mode [3])�
dS1 / dS2 Switch-on delay for OUT1 or OUT2�
dr1 / dr2 Switch-off delay for OUT1 / OUT2�
uni Standard unit of measurement for system pressure (display):
[bAr] / [MPA] / [PSI]�
P-n Output logic: pnp / npn�
Lo Minimum value memory for system pressure�
Hi Maximum value memory for system pressure�
dAP Damping of the switch point / process data flow (IO-Link communication) and
display�
dAA Damping of the analogue output�
Requirement: OUT2 setting is [I] or [U]�
coF Zero-point calibration�
coLr Assignment of the display colours "red" and "green" within the measuring range�
cFH / cFL Upper / lower value for colour change� Parameter only active after selection of a
freely definable colour window in the coLr parameter: [r-cF] or [G-cF]�
diS Update rate and orientation of the display�
CMPT Selection of the operating mode

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9 Parameter setting
During parameter setting the unit remains in the operating mode� It continues
to monitor with the existing parameters until the parameter setting has been
completed�
9.1 Parameter setting in general
3 steps must be taken for each parameter setting:
1Select parameter
► Press [●] to get to the menu.
► Press [▲] or [▼] until the required
parameter is displayed�
2Set parameter value
► Press [●] to edit the selected
parameter�
► Press [▲] or [▼] for at least 1 s.
> After 1 s: setting value is changed:
incrementally by pressing the button
once or continuously by keeping the
button pressed�
Numerical values are incremented continuously with [▲] or decremented with [▼]�
3Acknowledge parameter value
► Briefly press [●].
> The parameter is displayed again�
The new setting value is saved�
Set other parameters
► Press [▲] or [▼] until the required parameter is displayed.
Finish parameter setting
► Press [▲] or [▼]
several times until the current measured value is displayed or wait for
30 s�
> The unit returns to the process value display�

16
If [C�Loc] is displayed when you try to change a parameter value, a
parameter setting process is active via the IO-Link communication
(temporary locking)�
If [S�Loc] is displayed, the sensor is permanently locked via software� This
locking can only be removed with a parameter setting software�
• Change from menu level 1 to menu level 2:
► Press [●] to get to the menu.
► Press [▼] until [EF] is displayed.
► Press [●].
> The first parameter of the submenu is
displayed (here: [rES])�
• Locking / unlocking
The unit can be locked electronically to prevent unintentional settings�
►Make sure that the unit is in the
normal operating mode�
►Press [▲] + [▼] simultaneously for
10 s�
> [Loc] is displayed�
10 s
During operation: [Loc] is briefly displayed if you try to change parameter values�

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UK
For unlocking:
►Make sure that the unit is in the
normal operating mode�
► Press [▲] + [▼] simultaneously for
10 s�
> [uLoc] is displayed�
10 s
On delivery: not locked�
• Timeout:
If no button is pressed for 30 s during parameter setting, the unit returns to the
operating mode with unchanged values�
• Exit parameter without applying the settings
To exit a parameter without applying the
settings:
► Press [▲] + [▼] simultaneously.
> Return to the menu level�
• Exit menu level
To exit the menu level:
► Press [▲] + [▼] simultaneously.
> Menu level 2 changes to level 1
or
level 1 changes to display�

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9.2 Define operating mode (optional)
►Select [CMPT] and set the operating mode
- [2] = operating mode 2
- [3] = operating mode 3
Description of the operating modes see (→ 4.1)
When using IO-Link, an IODD suitable for the operating mode must
be used�
When the operating mode is changed, all parameters are reset to
factory setting�
9.3 Configure display (optional)
►Select [uni] and set the unit of measurement:
- [bAr],
- [MPA],
- [PSI]
►Select [diS] and set the update rate and orientation of the display:
- [d1]: update of the measured values every 50 ms�
- [d2]: update of the measured values every 200 ms�
- [d3]: update of the measured values every 600 ms�
- [rd1], [rd2], [rd3]: display as with d1, d2, d3; rotated by 180°�
- [OFF ] = the display is switched off in the operating mode� When one of
the buttons is pressed, the current measured value is displayed for 30 s�
The LEDs remain active even if the display is deactivated�
Error messages are displayed even if the display is deactivated�
Even with unsteady pressure characteristics [d1] provides optimum
readability; corresponding algorithms are stored�
9.4 Set output signals
9.4.1 Set output functions
►Select [ou1] and set the switching function:
- [Hno] = hysteresis function/normally open
- [Hnc] = hysteresis function/normally closed
- [Fno] = window function/normally open
- [Fnc] = window function/normally closed
- [OFF] = output off
Parameter [OFF] is only available in operating mode 3
([CMPT] = [3])

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►Select [ou2] and set the switching function:
- [Hno] = hysteresis function/normally open
- [Hnc] = hysteresis function/normally closed
- [Fno] = window function/normally open
- [Fnc] = window function/normally closed
- [I] = current signal 4���20 mA
- [U] = voltage signal 0���10 V
- [OFF] = output off
Parameter [OFF] is only available in operating mode 3
([CMPT] = [3])
9.4.2 Define switching limits for the hysteresis function
►[ou1] / [ou2] must be set as [Hno] or [Hnc]�
►Select [SPx] and set the value at which the output switches�
►Select [rPx] and set the value at which the output switches off�
rPx is always smaller than SPx� The unit only accepts values which are lower
than the value for SPx�
9.4.3 Define switching limits for the window function
►[ou1] / [ou2] must be set as [Fno] or [Fnc]�
►Select [FHx] and set the upper limit�
►Select [FLx] and set the lower limit�
FLx is always lower than FHx� The unit only accepts values which are lower
than the value for FHx�
9.4.4 Scale analogue value
►Select [ASP2] and set the value at which 4 mA / 0 V is provided�
►Select [AEP] and set the value at which 20 mA / 10 V is provided�
Minimum distance between ASP2 and AEP2 = 20 % of the measuring
span (scaling factor 5)�

20
9.5 User settings (optional)
9.5.1 Set delay time for the switching outputs
[dS1] / [dS2] = switch-on delay for OUT1 / OUT2�
[dr1] / [dr2] = switch-off delay for OUT1 / OUT2�
►Select [dS1], [dS2], [dr1] or [dr2] and set a value between 0 and 50 s (at
0 the delay time is not active)�
AB
Output function: A: B:
[Hno] / [Hnc] DS dr
FH
FL
ABC D
Output function: A: B: C: D:
[Fno] / [Fnc] dS dr dS dr
P = system pressure; SP = set point; rP = reset point; HY = hysteresis; FE = window;
FH = upper value; FL = lower value�
For this unit the parameters [dSx] and [drx] for the set and reset points are assigned
strictly to the VDMA guideline�
9.5.2 Set output logic for the switching outputs
►Select [P-n] and set [PnP] or [nPn]�
This manual suits for next models
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