IFM Electronic PN2 Series Bedienungsanleitung

Operating instructions

Electronic pressure sensor

PN2 UKUK

80290848 / 00 08 / 2020

Contents

1 Preliminary note��3

1�1 Symbols used ��3

2 Safety instructions ��4

3 Functions and features ��4

3�1 Applications ��5

4 Function��5

4�1 Operating modes ��5

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 ��19

9�4�1 Set output functions��19

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 ��20

9�5 User settings (optional)��20

9�5�1 Set delay time for the switching outputs ��20

9�5�2 Set output logic for the switching outputs ��21

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��30

12 Factory setting ��34

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

The following units are only supplied with operating mode [3]: PN2x12,

PN2x43, PN2x14, PN2x15� These units do not feature any other operating

mode and therefore menu item [CMPT] (→ 9.2) is not available�

Operating mode 2

Description Operating mode on delivery�

For exceptions, see note at the beginning of this chapter�

Application Standard applications�

IODD designation Example PN2094 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 PN2094 Status_B High Resolution / (CMPT = 3):

Example PN2012 Status_B

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�

4.4 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

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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

Current output 4...20 mA

Factory setting Measuring range scaled

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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�

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

600 30��50

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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