IFM PN72 Series User manual

Operating instructions

Electronic pressure sensor

PN72xx

PN73xx

PN76xx

80285816 / 00 07 / 2019

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��6

4�1 Operating modes ��7

4�2 Communication, parameter setting, evaluation ��8

4�3 Switching function��8

4�4 IO-Link ��10

4�4�1 General information ��10

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

5 Installation�� 11

6 Electrical connection��12

7 Operating and display elements ��13

8 Menu��14

8�1 Menu structure: main menu��14

8�2 Explanation of the menu��15

8�2�1 Explanation of menu level 1 ��15

8�2�2 Explanation of menu level 2 ��15

9 Parameter setting ��16

9�1 Parameter setting in general ��16

9�2 Define operating mode (optional) ��19

9�3 Configure display (optional)��19

9�4 Set output signals ��20

9�4�1 Set output functions��20

9�4�2 Define switching limits for the hysteresis function ��20

9�4�3 Define switching limits for the hysteresis function ��20

9�5 User settings (optional)��21

9�5�1 Set delay time for the switching outputs ��21

9�5�2 Set output logic for the switching outputs ��22

9�5�3 Set damping for the switching signal ��22

9�5�4 Reset all parameters to factory setting ��22

9�5�5 Set colour change of the display ��23

9�5�6 Graphical depiction of the colour change of the display ��24

9�6 Diagnostic functions ��27

9�6�1 Read min/max values for the system pressure ��27

9�6�2 Reading the overload processes ��27

10 Operation��27

10�1 Read set parameters ��27

10�2 Self-diagnostics / fault indications ��28

11 Technical data ��29

11�1 Setting ranges��29

11�1�1 Setting ranges in operating mode 2��29

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

11�2 Further technical data ��32

12 Factory setting ��32

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�

3 Functions and features

The device monitors the system pressure of machines and installations�

3.1 Applications

Type of pressure: relative pressure

Order no. Measuring range

pressure rating

(max. permissible overload

pressure*)

Bursting

pressure

psi bar psi bar psi bar

Pressure sensors with internal thread 1/4- 18 NPT

PN7270 0��5800 0��400 11580 800 24650 1700

PN7271 0��3625 0��250 7250 500 17400 1200

PN7292** 0��1450 0��100 4350 300 9400 650

PN7293** 0��362 0��25 2175 150 5075 350

PN7294** -14�5��145 -1��10 1087 75 2175 150

PN7296 0��36�2 0��2�5 290 20 725 50

PN7297 0��14�5 0��1 145 10 450 30

PN7299 -14�5��14�5 -1��1 145 10 450 30

Pressure sensors with 1/4 - 18 NPT

PN7670 0��5800 0��400 11580 800 24650 1700

PN7671 0��3625 0��250 7250 500 17400 1200

PN7692** 0��1450 0��100 4350 300 9400 650

PN7693** 0��362 0��25 2175 150 5075 350

PN7694** -14�5��145 -1��10 1087 75 2175 150

PN7696 0��36�2 0��2�5 290 20 725 50

PN7697 0��14�5 0��1 145 10 450 30

PN7699 -14�5��14�5 -1��1 145 10 450 30

Pressure sensors with internal thread 7/16“ - 20 UNF

PN7370 0��5800 0��400 11580 800 24650 1700

PN7392 0��1450 0��100 4350 300 9400 650

*) With static overload pressure or max� 100 million pressure cycles�

**)

Use devices with a measuring range ≥ 3620 psi (250 bar) for gas applications >

362 psi (25 bar)!

MPa = (measured value in bar) ÷ 10

kPa = (measured value in bar) x 100

Avoid static and dynamic overpressure exceeding the specified overload

pressure 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 and are designed

and manufactured for group 2 fluids in accordance with the sound

engineering practice�

Use of 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 (→ 4.4)

4.1 Operating modes

Operating mode 1

If operating mode 1 is used, note the operation instructions of the old devices,

as the device functions may differ from these operating instructions� Operating

instructions: → www�ifm�com

Description In this operating mode the sensor behaves like its previous

version�

The following old devices are concerned:

PN7200, PN7201, PN7202, PN7203, PN7204, PN7206, PN7207,

PN7209, PN7300, PN7302, PN7303, PN7304�

Applications To ensure compatibility to old devices if sensors are replaced�

Designation IODD IO Device Description - IODD:

At www�ifm�com in the download area of the corresponding old

device�

Operating mode 2

Description Operating mode on delivery�

Applications Standard applications�

Designation IODD Example PN7294 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 operating mode of the corresponding IODD)�

The menu points [ou1] and [ou2] are extended by the setting

option [OFF] (→ 9.4.1)�

IO-Link standard command "Flash on" is available (→ 4.4.2)�

The following IO-Link markings are available: Application Specific

Tag, Function Tag and Location Tag (→ 4.4.2)�

This operating mode is available as of device status

BA�The device status is indicated on the unit�

BA xxxx

PNxxxx

Applications Better controllability via IO-Link�

Highly granular setting of switch-on and switch-off points�

Designation IODD Example PN7294 Status_B High Resolution / (CMPT = 3):

At www�ifm�com in the download area of the corresponding

article�

Manual operating mode selection, see (→ 9.2),

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

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: [OUx] = [Hno] (→ fig. 1).

• Hysteresis function / normally closed: [OUx] = [Hnc] (→ fig. 1. 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: [OUx] = [Fno] (→ fig. 2).

• Window function / normally closed: [OUx] = [Fnc] (→ fig. 2. 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 IO-Link

4.4.1 General information

This unit 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�

4.4.2 Functions that are only available via IO-Link communication

• HIPC: number of overload processes (→ 9.6.2)�

• HIPS: threshold for the overload counter (→ 9.6.2)�

• Flashing: The sensor can be localised in the plant via this standard command�

When the command is used, the switching status LEDs will flash and the

device display will signal "IO-L"�

(Function is only available in operating mode [3])�

• Application Specific Tag: Freely definable text, assigned to the device�

• Function Tag: Freely definable text, describes the device function in the plant�

(Function is only available in operating mode [3])�

• Location Tag: Freely definable text, describes the installation location in the

plant� (Function is only available in operating mode [3])�

For more detailed information refer to the device-specific IO Device Description

PDF at www�ifm�com�

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