IFM Electronic PN72 Series Bedienungsanleitung

Operating instructions

Electronic pressure sensor

PN72xx

PN73xx

PN76xx

80012464 / 00 07 / 2016

Contents

1 Preliminary note��4

1�1 Symbols used ��4

2 Safety instructions ��4

3 Functions and features ��5

3�1 Applications ��5

4 Function��7

4�1 Communication, parameter setting, evaluation ��7

4�2 Switching function��7

4�3 IO-Link ��8

5 Installation��9

6 Electrical connection��9

7 Operating and display elements ��10

8 Menu�� 11

8�1 Menu structure: Main menu�� 11

8�2 Explanation of the menu��12

8�2�1 Explanation of the menu level 1 ��12

8�2�2 Explanation of the menu level 2 ��12

9 Parameter setting ��13

9�1 Parameter setting in general ��13

9�2 Configure display (optional)��16

9�3 Set output signals ��16

9�3�1 Set output functions��16

9�3�2 Define switching limits for the hysteresis function ��16

9�3�3 Define switching limits for the window function ��17

9�4 User settings (optional)��17

9�4�1 Set delay for the switching outputs��17

9�4�2 Set output logic for the switching outputs ��17

9�4�3 Set damping for the switching signal ��17

9�4�4 Read min/max values for the system pressure ��17

9�4�5 Reset all parameters to factory setting ��18

9�4�6 Set colour change of the display ��18

9�4�7 Graphical depiction of the colour change of the display ��19

10 Operation��21

10�1 Read set parameters ��21

10�2 Self-diagnosis / error indications ��22

11 Technical data and scale drawing ��24

11�1 Setting ranges��24

11�2 Further technical data ��25

12 Factory setting ��25

1 Preliminary note

1.1 Symbols used

►Instructions

> Reaction, result

[…] Designation of keys, buttons or indications

→Cross-reference

Important note

Non-compliance can result in malfunction or interference�

Information

Supplementary note�

2 Safety instructions

• Please read this document prior to set-up of the unit� Ensure that the product is

suitable for your application without any restrictions�

• If the operating instructions or the technical data are not adhered to, personal

injury and/or damage to property can occur�

• Check the compatibility of the product materials with the media to be measured

in all applications�

• Correct condition of the device for the operating time can only be guaranteed if

the device is only used for media to which the wetted materials are sufficiently

resistant → 3.1 Applications.

• If the devices are used in gas applications with pressures > 362 psi (25 bar)

the notes in chapter 3�1 for devices with the marking **)must be absolutely

observed�

The responsibility whether the measurement device is suitable for the re-

spective application lies with the operator� The manufacturer assumes no

liability for consequences of misuse by the operator� Improper installation

and use of the devices results in a loss of the warranty claims�

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 Permissible

overpressure *)

Bursting pres-

sure

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��1 290 20 725 50

Pressure sensors with external thread 1/4 - 18 NPT

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

PN7271 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��1 290 20 725 50

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�

**)

For gas applications > 362 psi (25 bar) it is necessary to use devices with a measuring

range ≥ 3620 psi (250 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!

Pressure Equipment Directive (PED):

The units comply with section 3, article (3) of the Directive 97/23/EC and

are designed and manufactured for "non-superheated liquids" of group 2

fluids in accordance with the sound engineering practice�

Restriction for stable gases according to PED → 2 Safety instructions.

4 Function

• The unit displays the current system pressure�

• It generates output signals according to the operating mode and the parameter

setting�

• It moreover provides the process data via IO-Link�

• The unit is laid out 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 → 4.3

4.1 Communication, parameter setting, evaluation

OUT1 (pin 4) • Switching signal for system pressure limit value�

• Communication via IO-Link�

OUT2 (pin 2) • Switching signal for system pressure limit value�

4.2 Switching function

OUTx changes its switching state 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).

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).

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

4.3 IO-Link

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�

Further information about IO-Link at www.ifm.com → more product information →

Specials → IO-Link.

Device-specific information

You can find the IODDs necessary for the configuration of the IO-Link unit and

detailed information about process data structure,

diagnostic information and parameter addresses at www.ifm.com → more product

information → Specials → IO-Link.

Parameter setting tools

You will find all necessary information about the required IO-Link hardware and

software at www.ifm.com → more product information → Specials → IO-Link.

5 Installation

Before installing and removing the unit: Make sure that no pressure is

applied to the system�

►Insert the unit in a process connection with a suitable thread�

►Tighten firmly�

Tightening Torque 1/4-18 NPT threads: 2��3 turns after finger tightened�

To ensure leak-free joints for NPT threads, sealants and lubricants com-

monly used in the industry should be used�

Tightening Torque 7/16“-20 UNF threads: 25��35 Nm�

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: Binary switching output or IO-Link

OUT2: Binary switching output

Colours to DIN EN 60947-5-6

Example circuits

2 x positive switching 2 x negative switching

L+

2: OUT2

4: OUT1 L

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 (lights when output 1 is switched)�

LED 8 Switching status OUT2 (lights when output 2 is switched)�

LEDs

2 - 7

System pressure in the indicated unit of measurement�

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; incremental 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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