IFM PI2798 Operating Instructions Manual

IFM PI2798 Operating Instructions Manual

Pi27 series electronic pressure sensor
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Operating instructions
Electronic pressure sensor
UK
PI27xx

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Summary of Contents for IFM PI2798

  • Page 1 Operating instructions Electronic pressure sensor PI27xx...
  • Page 2: Table Of Contents

    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 ���������������������������������������������������������������������������������������������������������������5 4�1 Operating modes �������������������������������������������������������������������������������������������6 4�1�1 2-wire operation ������������������������������������������������������������������������������������6 4�1�2 3-wire operation ������������������������������������������������������������������������������������6 4�2 Switching function (only for 3-wire operation) ������������������������������������������������6 4�3 Analogue function ������������������������������������������������������������������������������������������7 4�4 Customer-specific calibration ������������������������������������������������������������������������9 5 Installation����������������������������������������������������������������������������������������������������������10...
  • Page 3 9�4�2 Setting of the error behaviour of the outputs ��������������������������������������24 9�4�3 Set delay for the switching outputs �����������������������������������������������������25 9�4�4 Set switching logic for the switching outputs ��������������������������������������25 9�4�5 Set damping for the switching signal ��������������������������������������������������25 9�4�6 Set damping for the analogue signal ��������������������������������������������������25 9�4�7 Calibrate curve of measured values ���������������������������������������������������25 9�5 Service functions �����������������������������������������������������������������������������������������26 9�5�1 Read min/max values for system pressure ����������������������������������������26...
  • Page 4: Preliminary Note

    1 Preliminary note 1.1 Symbols used ► Instructions > Reaction, result […] Designation of pushbuttons, 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�...
  • Page 5: Functions And Features

    -0�124���2�5 -1�8���36�27 PI2797 -0�05���1 -0�73���14�5 PI2799 -1���1 -14�5���14�5 mbar inH2O inH2O inH2O PI2798 -12�4���250 -5�0��100�4 4015 12044 PI2789 -5���100 -2�00���40�16 1606 12044 Avoid static and dynamic overpressure exceeding the given overload pressure by taking appropriate measures� The indicated bursting pressure must not be exceeded�...
  • Page 6: 4�1 Operating Modes

    - Using the FDT service program ifm Container, the current parameter settings can be stored and transferred to other units of the same type� The program library of the available DTM objects can be found at www�ifm�com → Service → Download. Device-specific parameter lists for IO-Link parameter setting are available at: www�ifm�com...
  • Page 7: 4�3 Analogue Function

    P = system pressure; HY = hysteresis; FE = window 4.3 Analogue function The analogue output can be configured� • [OU2] defines whether the set measuring range is provided as 4���20 mA ([OU2] = [I]) or as 20���4 mA ([OU2] = [InEG])� Scaling can be set by means of the teaching process or by entering a value for the ASP and AEP parameters�...
  • Page 8 Minimum distance between [ASP] and [AEP] = 25 % of the final value of the measuring range (turn-down 1:4); for PI2799: 25 % of the measuring span� Factory setting Measuring range scaled I [mA] I [mA] P = system pressure , MAW = initial value of the measuring range, MEW = final value of the measuring range : [OU2] = [I];...
  • Page 9: 4�4 Customer-Specific Calibration

    4.4 Customer-specific calibration The customer-specific calibration changes the curve of measured values compared to the real measured values (shifting / change of the gradient; → 9.4.6 [CAL])� • Two calibration points can be defined (CP1, CP2)� The two points are independent of each other� • The two calibration points must be within the scaled measuring range (→ 4.3 Pressure monitoring / analogue function)� • The zero point calibration [COF] influences the calibration of the curve of measured values. Recommendation: set [COF] to 0 (→ 9.4.1 [COF]), then calibrate the curve of measured values�...
  • Page 10: Installation

    • P = measured pressure; P‘ = modified measured value • CP1 = calibration point 1; CP1‘ = modified measured value for CP2' • CP2 = calibration point 2; CP2‘ = modified measured value for CP1' • 1 = curve of measured values at factory setting • 2 = curve of measured values after calibration...
  • Page 11: Electrical Connection

    1 Installation using an adapter with sealing ring (order no. E332xx / E333xx) The adapters are supplied with EPDM O-ring (order no� E30054)� More sealing rings are available as accessories: FKM O-ring (order no� E30123); PEEK sealing ring (order no� E30124)� Concerning installation → Installation instructions attached to the adapter.
  • Page 12: 6�2 Connection For Io-Link Parameter Setting

    6.2 Connection for IO-Link parameter setting Pin 1 Pin 2 Output function according to the OU2 setting Pin 3 Ub- for programming mode Pin 4 (P) Communication via IO-Link 6.3 Connection for 3-wire operation 2 x positive switching 2 x negative switching Out 2 Out 2 Out 1...
  • Page 13: Operating And Display Elements

    7 Operating and display elements 1 2 3 4 5 6 7 8 Mode/Enter Set 1 to 8: Indicator LEDs - LED 1 to LED 5 = system pressure in the specified unit of measurement� - LED 6 = System pressure in % of the set scaling of the analogue output if [OU2] is configured as analogue output�...
  • Page 14: Menu

    8 Menu 8.1 Menu structure: main menu 1: Change to menu level 2 (extended functions) Menu items highlighted grey ( SP1 ) are not active in 2-wire operation�...
  • Page 15: 8�2 Explanation Of The Main Menu

    8.2 Explanation of the main menu SP1/rP1* Upper / lower limit value for system pressure at which OUT1 switches� OU1* Output function for OUT1: • Switching signal for the pressure limit values: hysteresis function [H ��] or window function [F ��], either normally open [� no] or normally closed [� nc]� Output function for OUT2: • Switching signal for the pressure limit values: hysteresis function [H ��] or window function [F ��], either normally open [�...
  • Page 16: 8�3 Menu Structure: Level 2 (Extended Functions)

    8.3 Menu structure: level 2 (extended functions) 1: Change to the main menu; 2: Change to menu level 3 (simulation) Menu items highlighted grey ( ASP ) are not active in 2-wire operation�...
  • Page 17: 8�4 Explanation Of The Menu Level 2

    8.4 Explanation of the menu level 2 Standard unit of measurement for system pressure� Display mode: SELd • Pressure in the unit set in [Uni]� • Pressure in % of the set scaling of the analogue output� Analogue start point for system pressure: measured value at which 4 mA is provided (20 mA if [OU2] = [InEG])�...
  • Page 18: 8�5 Menu Structure: Level 3 (Simulation)

    8.5 Menu structure: level 3 (simulation) For setting SEL = OU 1...60 min For setting SEL = Proc 1...60 min 2: Change to menu level 2 (extended functions) Menu items highlighted grey ( S�OU1 ) are not active in 2-wire operation�...
  • Page 19: 8�6 Explanation Of The Menu Level 3

    8.6 Explanation of the menu level 3 For setting SEL = OU Status to be simulated: • Output functions [OU]� S�OU1* Simulation values for OUT1; only active for 3-wire operation and if [SEL] = [OU]� • Output inactive [OPEN] or output active [CLOS]� S�OU2 Simulation values for OUT2;...
  • Page 20: Parameter Setting

    Mode/Enter Set ► Press [Set] and keep it pressed until the valid code no� is displayed� ► Press [Mode/Enter] briefly� On delivery by ifm electronic: no access restriction� Set parameter value ► Press [Set] and keep it pressed� > Current setting value of the Mode/Enter Set parameter flashes for 5 s�...
  • Page 21 This locking can only be removed via a parameter setting software� • When parameter setting with the user interface of the ifm Container program, the values can be directly entered in the specified fields�...
  • Page 22: 9�2 Configure Display (Optional)

    - [bAr], [mbAr]� - [MPA], [kPA]� - [PSI] (only PI2793, PI2794, PI2795, PI2796, PI2797, PI2799)� - [InHO] (only PI2789, PI2796, PI2797, PI2798, PI2799)� - [mWS] (only PI2796, PI2797, PI2799)� - [mmWS] (only PI2789 and PI2798)� ► Select [SELd] and set type of indication: - [P]: system pressure in the unit set in Uni�...
  • Page 23: 9�3�2 Set Switching Limits

    ► Select [OU2] and set the function: - [Hno] = hysteresis function/NO, - [Hnc] = hysteresis function/NC, - [Fno] = window function/NO, - [Fnc] = window function/NC� - [I] = current signal proportional to pressure 4…20 mA� - [InEG] = current signal proportional to pressure 20…4 mA� 9.3.2 Set switching limits ►...
  • Page 24: 9�4 User Settings (Optional)

    As an alternative: ► Select [ASP] and set the measured value at which 4 mA is provided (20 mA at [OU2] = [InEG])� ► Select [AEP] and set the measured value at which 20 mA is provided (4 mA at [OU2] = [InEG])� Minimum distance between ASP and AEP = 25 % of the final value of the measuring range (turn-down 1:4)�...
  • Page 25: 9�4�3 Set Delay For The Switching Outputs

    9.4.3 Set delay 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�1 and 50 s (at 0�0 the delay time is not active)�...
  • Page 26: 9�5 Service Functions

    a) Finish calibration: ► Press [Mode/Enter] briefly� > [CAL] is displayed� b) Change a 2nd point on the curve of measured values ► Set a second defined reference pressure in the system� Minimum distance between the calibration points CP1 and CP2 = 5 % of the final value of the measuring range�...
  • Page 27: 9�6�2 Set Simulation Value

    9.6.2 Set simulation value Output states If [SEL] is active: ► Press [Set] and keep it pressed until [OU] is displayed� ► Press [Mode/Enter] briefly� > [S�OU1] is displayed (in 2-wire operation [S�OU2] is displayed)� ► Press [Set] to set the requested value: - [OPEN] = output 1 not active / open�...
  • Page 28: Operation

    10 Operation After power on, the unit is in the Run mode (= normal operating mode)� It carries out its measurement and evaluation functions and provides output signals according to the set parameters� Operating indicators → Chapter 7 Operating and display elements. 10.1 Read set parameters ► Press [Mode/Enter] until the requested parameter is displayed� ►...
  • Page 29 -/-* 0x5111 Supply voltage ► Check / correct the supply voltage� too low� ► In 2-wire operation: Check / correct the connected load� 0x8CB3 yes Excessive ► Check switching output 1 for short- current circuit or excessive current; remove switching the fault�...
  • Page 30 W532 0x8CA5 yes Load at ► Reduce load at output 2 or increase analogue the supply voltage� output too high�*** W203 0x1822 Error during the The unit uses a higher temperature temperature coefficient (i�e� with reduced accuracy)� compensation ► Replace the unit� of the pressure measurement�...
  • Page 31: Scale Drawing

    11 Scale drawing Dimensions in mm 1: Display 2: LEDs 3: Programming button 12 Technical data 2-wire operation 3-wire operation Operating voltage [V] 20���32 DC 18���32 DC Current consumption [mA] 3�6���21 < 45 Current rating [mA] Analogue output 4���20 mA / 20���4 mA Max. load [Ω] (Ub - 10) x 50 Step response time analogue output [ms]...
  • Page 32 IO-Link Device Transfer type �����������������������������������������������������������������������������������������COM2 (38�4 kBaud) Accuracy / deviations (in % of the span) PI279x PI2789 Switch point accuracy [%] < ± 0�2 < ± 0�5 Characteristics deviation (linearity, incl� hysteresis and < ± 0�2 < ± 0�5 repeatability) Linearity <...
  • Page 33: 12�1 Setting Ranges

    12.1 Setting ranges SP1 / SP2 rP1 / rP2 ΔP mbar -4�8 100�0 -5�0 99�8 -5�0 75�0 20�0 100�0 0�1 -0�48 10�00 -0�50 9�98 -0�50 7�50 2�00 10�00 0�01 -1�92 40�16 -2�00 40�08 -2�00 30�12 8�04 40�16 0�04 1020 1018 1020 mmWS -0�96...
  • Page 34 -1000 -500 1000 -14�45 14�50 -14�50 14�45 -14�50 7�25 -7�25 14�50 0�05 -99�8 100�0 -100�0 99�8 -100�0 50�0 -50�0 100�0 0�1 -400 -401 -401 -201 mWS -10�18 10�20 -10�20 10�18 -10�20 5�10 -5�10 10�20 0�01 ΔP = step increment More information at www�ifm�com...
  • Page 35: Factory Setting

    13 Factory setting Factory setting User setting 25% VMR * 23% VMR * 75% VMR * 73% VMR * COF / tCOF 0% VMR * ASP / tASP PI2799: -1 bar AEP / tAEP 100% VMR * bAr / mbAr SELd FOU1 FOU2...

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