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Operating instructions

Electronic pressure sensor

PN22

PN26

UKUKUK

11420489 / 00 10 / 2021

Contents

1 Preliminary note 3

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1�1 Symbols used 3

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2 Safety instructions 4

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3 Functions and features 4

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3�1 Applications ��

4 Function ��

4�1 Operating modes 6

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4�2 Communication, parameter setting, evaluation 7

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4�3 Switching function 7

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4�4 Analogue function 8

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4�5 IO-Link ��

4�5�1 General information 9

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4�5�2 Functions only available via IO-Link communication 10

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5 Installation��10

6 Electrical connection ��

7 Operating and display elements 12

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8 Menu ��

8�1 Menu structure: main menu 13

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8�2 Explanation of the menu 14

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8�2�1 Explanation of menu level 1 14

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8�2�2 Explanation of menu level 2 14

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9 Parameter setting 15

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9�1 Parameter setting in general 15

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9�2 Define operating mode (optional) 17

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9�3 Configure display (optional) 18

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9�4 Set output signals 18

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9�4�1 Set output functions 18

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9�4�2 Define switching limits for the hysteresis function 19

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9�4�3 Define switching limits for the window function 19

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9�4�4 Scale analogue value 19

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9�5 User settings (optional) 20

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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

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9�5�3 Set damping for the switching signal 21

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9�5�4 Set damping for the analogue output 21

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9�5�5 Zero-point calibration 21

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9�5�6 Reset all parameters to factory setting 21

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9�5�7 Set colour change of the display 22

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9�5�8 Graphical depiction of the colour change of the display 23

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9�6 Diagnostic functions 25

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9�6�1 Read min/max values for the system pressure 25

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9�6�2 Read overload processes 26

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10 Operation ��

10�1 Read set parameters 26

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10�2 Self-diagnostics / fault indications 26

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11 Technical data 28

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11�1 Setting ranges 28

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11�1�1 Setting ranges in operating mode 2 28

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11�1�2 Setting ranges in operating mode 3 30

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12 Factory setting 32

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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

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!

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)

4.1 Operating modes

Operating mode 2

Description Operating mode on delivery�

Application Standard applications�

IODD designation Example PN2294 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 PN2294 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�

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�

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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�

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 ¼ - 18 NPT process connection�

► Tighten firmly. Recommended tightening torque: ≤ 50 Nm

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!

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

2 1

2OUT2

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+

2: OUT2

4: OUT1 L

L+

2: OUT2

4: OUT1

1 x pnp / 1 x analogue 1 x npn / 1 x analogue

L+

2: OUT2

4: OUT1

7 Operating and display elements

321

9 10 11

4 5 6 7 8

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�

8 Menu

8.1 Menu structure: main menu

RUN

Menu items highlighted in grey e�g�

[ FH1 ] are only active when assigned

parameters have been selected�

diS Update rate and orientation of the display�

CMPT Selection of the operating mode

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�

Produktspecifikationer

Varumärke:	IFM
Kategori:	Inte kategoriserad
Modell:	PN2271

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