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Ultrasonic flow meter

SU2020 SU8020 SU2021 SU8021 SU2621 SU8621

12 Troubleshooting

The unit has many self-diagnostic options. It monitors itself automatically during operation.

Warnings and error states are displayed even if the display is switched off. Error indications are also
available via IO-Link.

The status signals are classified according to NAMUR recommendation NE107.

If several diagnostic events occur simultaneously, only the diagnostic message of the event with the
highest priority is displayed.

In addition, warnings and error messages are displayed by the unit as follows:

•

switching signal when using OUT1 or OUT2 as diagnostic output.
See also

Switching signal Diagnosis (

26)

•

colour signal of the operating status LED.
See also:

Operating status LED (

48)

If the measured temperature value fails, the process value for flow rate is still available.

Additional diagnostic functions are available via IO-Link

IO-Link interface description at

documentation.ifm.com

12.1 Warning messages

Display indication

LED display

Problem/remedy

• Display off

• Operating status LED: off

• Switching status LEDs: off

• Supply voltage too low.

Check the supply voltage.

• Display switched off.

Check whether [diS.B] = OFF and
change setting if necessary.

• Operating status LED switched off.

Check whether [LED.M] = OFF is set
and change setting if necessary.

• Display off

• Operating status LED: flashes red

Internal unit temperature too high.

Allow unit to cool down.

• Title line:

Short circuit OUT1/

OUT2

• Process value line: ---

• Operating status LED: flashes red

• Switching status LEDs: flash yellow

rapidly

Short circuit in both outputs.

Check OUT1 and OUT2 for short
circuit or excessive current.

• Title line:

Short circuit OUT1

• Process value line: ---

• Operating status LED: flashes red

• Switching status LED1: flashes yellow

rapidly

Short circuit output 1.

Check OUT1 for short circuit or
excessive current.

• Title line:

Short circuit OUT2

• Process value line: ---

• Operating status LED: flashes red

• Switching status LED2: flashes yellow

rapidly

Short circuit output 2.

Check OUT1 for short circuit or
excessive current.

• Title line:

Under limit

• Process value line:

• Operating status LED: flashes red

Below the display range.

Check the measuring range.

• Title line:

Over limit

• Process value line:

• Operating status LED: flashes red

Above the display range.

Check the measuring range.

• Title line:

Override active

• Process value line: ---

• Operating status LED: flashes red

A process value differs from the meas-
ured value. PV is set to “0” while over-
ride bit is set in PDOut.

Deactivate PDOut override.

• Title line:

Signal quality low

• Process value line:

LOW

• Operating status LED: lights blue

Signal quality low.

Remove unit and check for deposits.

Check application for interference (air
bubbles/particles).

Содержание SU2020

Страница 1: ...Operating instructions Ultrasonic flow meter SU2020 SU8020 SU2021 SU8021 SU2621 SU8621 11417213 01 11 2022 GB ...

Страница 2: ...nk 24 10 3 Output configuration 25 10 3 1 Switching signal for limit value monitoring 25 10 3 2 Switching signal Diagnosis 26 10 3 2 1 Switching signal for flow direction 27 10 3 2 2 Switching signal for signal quality 27 10 3 3 Consumed quantity monitoring totaliser function 28 10 3 3 1 Switching signal totaliser 28 10 3 3 2 Pulse signal totaliser 29 10 3 4 Analogue signal 30 10 3 5 Frequency sig...

Страница 3: ... functions 46 10 6 2 Memory 46 10 6 3 Operating hours counter 47 10 6 4 Internal temperature 47 10 6 5 Signal quality 48 10 6 6 Operating status LED 48 10 6 7 Simulation 49 10 7 Identification 50 10 7 1 Device information 50 10 7 2 Optical localisation 51 11 Operation 52 11 1 Process value display 52 12 Troubleshooting 53 12 1 Warning messages 53 12 2 Error messages 54 ...

Страница 4: ...g the QR code on the unit packaging or at www ifm com 1 1 Symbols used Requirement Instructions Reaction result Designation of keys buttons or indications Cross reference Important note Non compliance may result in malfunction or interference Information Supplementary note 1 2 Warnings used CAUTION Warning of personal injury w Slight reversible injuries may result ...

Страница 5: ...t 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 Ò Intended use Only use the product for permissible media If the operating instructions or the technical data are not adhered to...

Страница 6: ...ed quantity and the medium temperature 3 1 Application area Liquids with the following properties conductive water based media with 90 water content non conductive water 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 media from group 1 fluids on req...

Страница 7: ...colour signal of an operating status LED In addition the diagnostic information is provided via the outputs and the IO Link interface A simulation mode allows simplified set up of the sensor 4 1 Options for output OUT1 Switching signal flow Switching signal temperature Switching signal diagnosis Direction of flow Signal quality Switching signal totaliser Pulse signal totaliser Frequency signal flo...

Страница 8: ...documentation ifm com IO Link offers the following advantages Interference free transmission of all data and process values Parameter setting in the running process or presetting outside the application Parameters for identifying the connected devices in the system Additional parameters and diagnostic functions Automatic backup and restore of parameter sets in case of device replacement data stora...

Страница 9: ...s connection Using process adapters the unit can be adapted to different process connections Information about available accessories at documentation ifm com The optimum function is not ensured when using components from other manufacturers 2 2 3 3 4 5a 5b 4 1 1 Fig 1 process connection 1 pipe 2 adapter 3 seal only units with G thread 4 sensor thread 5a hexagonal 5b hexagonal only SU8621 u Grease ...

Страница 10: ...n for ventilation 5 2 Interference Structures in the pipe bends valves reducing pieces and the like affect the function of the unit u Adhere to the distances between sensor and interference S S 5 x D 1 x D F Fig 2 inlet and outlet sections D outside diameter of the pipe S interference 5 3 Installation position 5 3 1 Recommended installation position u Install the unit so that the measuring pipe is...

Страница 11: ...f the pipe C vertical installation The unit can be installed independently of the orientation if the following is ensured No air bubbles can form in the pipe system The pipes are always completely filled 5 3 2 Non recommended installation position Directly in front of a falling pipe In a falling pipe Directly in front of the spout of a pipe Directly in front of a valve On the suction side of a pum...

Страница 12: ...ng diagram colours to DIN EN 60947 5 2 BK black BN brown BU blue WH white Pin Connection 1 L 3 L 4 OUT1 Switching signal flow Switching signal temperature Switching signal diagnosis Switching signal totaliser Pulse signal totaliser Frequency signal flow Frequency signal temperature IO Link OFF output switched to high impedance 2 OUT2 InD Switching signal flow Switching signal temperature Switching...

Страница 13: ...8621 13 1 L 1 BN 2 WH 4 BK 3 BU L 2 L 1 BN 2 WH 4 BK 3 BU L 4 L 1 BN 4 BK 2 WH 3 BU L 3 L 1 BN 2 WH 4 BK 3 BU L Fig 5 Circuit examples 1 2 x positive switching 2 2 x negative switching 3 1 x positive switching 1 x analogue 4 1 x negative switching 1 x analogue ...

Страница 14: ...low if output 2 is switched 3 operating status LED green blue red See also Operating status LED Ò 48 4 TFT display See also Display layout Ò 44 4a title line 4b process value line 5 keys for changing views and parameter setting If the unit measures a high internal temperature the display brightness is automatically adjusted Internal temperature of the unit 64 C brightness is reduced to 25 Internal...

Страница 15: ...TL Display settings DIS OUT1 configuration OUT1 Basic settings CFG OUT2 configuration OUT2 Diagnostic indicators DIAG Simulation mode SIM Device info d InF Reset device rES Fig 7 menu overview 8 1 Main menu and submenus The displayed parameters change when the factory setting is changed The following menu displays show the maximum available parameters Process value display EF rP1 SP1 FH1 FL1 OUT1 ...

Страница 16: ...o Fnc ImP FRQ dOU TEMP OFF FLOW Fdir Sig Q rP1 SP1 FH1 FL1 ImPS ImPR FSP1 FEP1 FrP1 Main menu Fig 9 output 1 configuration menu OUT1 OUT1 OUT2 CFG TOTL DIS DIAG SIM d InF rES BACK EF SEL2 ou2 BACK FOU2 OUT2 OU ON OFF Hno Hnc Fno Fnc ImP In D dOU I TEMP OFF FLOW rP2 SP2 AEP2 ASP2 FH2 FL2 ImPS DIn2 ImPR Fdir Sig Q Main menu Fig 10 output 2 configuration menu OUT2 ...

Страница 17: ...FG C PnP nPn YES NO F LFC CGA BACK Guide m3 h m s l min l h gal min gal h ft s d InF rES Fig 11 basic settings menu CFG Additionally for unit type SUxxx1 OUT1 OUT2 CFG TOTL DIS DIAG SIM BACK EF TOTL FPro1 FPro2 Vol 1 Vol 2 Vol L BACK WEEK DAY HOUR OFF rTo2 Reset WEEK DAY HOUR OFF rTo1 Reset 0 0 0 0 d InF rES Main menu Fig 12 totaliser menu TOTL ...

Страница 18: ... F bk wh red green yellow r cF G cF bk wh red green yellow r cF G cF coL T coL V bk wh red green LED M On OFF Noti yellow diS L L2 Tem L2 Totl L3 L4 L1 BACK d InF rES Main menu Fig 13 display settings menu DIS OUT1 OUT2 CFG TOTL DIS DIAG SIM BACK EF DIAG d InF rES Main menu Flow min Internal temperature Signal quality Operating hours Flow max Temperature min Temperature max Fig 14 diagnostic indic...

Страница 19: ... TMP S Tim SIM S FLW S On BACK d InF rES Main menu Fig 15 simulation mode menu SIM OUT1 OUT2 CFG TOTL DIS DIAG SIM BACK EF d InF d InF rES Main menu Product name Device ID Serial number Hardware revision Application Specific Tag Function Tag Software revision Location Tag Fig 16 device information menu d InF ...

Страница 20: ...rature CGA Calibration factor in for adapting the measured value curve to the application coL F Font colour for flow col T Font colour for temperature col V Font colour for totaliser indication dAP F Damping time in seconds for flow measurement dOU Switching signal for diagnostic messages DIn2 Totaliser reset via external signal diS B Brightness of the display diS L Display layout diS R Orientatio...

Страница 21: ... which flow is evaluated as standstill oux Output configuration for output OUTx e g switching output with hysteresis function P n Output polarity for the switching outputs rES Reset to factory settings Back to Box or reset of parameter settings application reset rPx Reset point for switching output OUTx with hysteresis function rTo Setting of the totaliser reset manually or time controlled S FLW S...

Страница 22: ...lected the main menu appears and the sensor functions according to the factory settings If necessary change the factory settings Ò See chapter Parameter setting The guided installation can be called up again at any time via the parameter EF CFG Guide During guided installation the following setting options appear in succession 1 diS R display rotation 2 LanG display language 3 Fdir flow direction ...

Страница 23: ...layout After the message that the guided installation is completed you are asked whether you want to start the measurement u Select Yes or No or Device info w If Yes is selected the installation process is completed and the unit changes to the process value display w If No is selected the parameters for the flow direction OUT1 OUT2 and the display layout steps 3 6 can be modified again or the guid...

Страница 24: ...hands u If necessary use a blunt object to make settings on the device Intention Action Change from the process value display to the main menu Change to the submenu Use to navigate to the sub menu e g EF then Select the requested parameter or Change to the setting mode Modify the parameter value or Apply the set parameter Exit parameter setting without saving Return to the next higher menu level r...

Страница 25: ...ing limits are exceeded or not reached You can choose between hysteresis and window function Hysteresis function SP t Hno HY Hnc rP 1 0 1 0 1 Fig 18 Hysteresis function 1 Process value t Time SP Set point rP Reset point HY Hysteresis Hno Hysteresis function NO normally open Hnc Hysteresis function NC normally closed When the hysteresis function is set the set point SP and the reset point rP are se...

Страница 26: ...it of the window The parameter settings for SP rP FH and FL can be changed subsequently in the main menu 10 3 1 2 Parameter setting via IO Link Switching signal ü Standard unit of measurement is selected Parameter Basic settings uni x u Go to Parameter Output configuration u Select SELx and set the process value FLOW or TEMP Hysteresis function u Select oux and set the switching signal Hno or Hnc ...

Страница 27: ...ng applies The output switches ON when volumetric flow is above LFC 2 The output switches OFF when volumetric flow is below LFC 3 LFC low flow cut off Low flow cut off Ò 37 2 3 1 LFC Q Q LFC 1 0 Fig 20 monitoring of the flow direction by switching signals Q volumetric flow in positive flow direction Q volumetric flow in negative flow direction LFC minimum volumetric flow low flow cut off in positi...

Страница 28: ...consumed quantity monitoring by switching or pulse signals Cyclic Vol 2 Consumed quantity 2 Acyclic Vol L Consumed quantity over the whole lifetime lifetime totalis er Acyclic The totalisers Vol 1 and Vol 2 take account of the flow direction when totalising the consumed quantity Counting method of the totalisers Ò 40 OUT1 and OUT2 cannot be used simultaneously for the consumed quantity monitoring ...

Страница 29: ...ally be reset via an external signal at pin 2 See also Totaliser reset Ò 38 Parameter setting via unit keys Switching signal totaliser ü Standard unit of measurement is selected EF CFG uni x ü rTox is set EF TOTL rTox u Go to EF OUTx to configure output OUTx u Select SELx and set the process value FLOW u Select ou1 or ou2 and set ImP u Select ImPSx and set the volumetric flow quantity at which the...

Страница 30: ...The parameter settings for ImPS and ImPR can be changed subsequently in the main menu Parameter setting via IO Link Pulse signal totaliser ü Standard unit of measurement is selected Parameter Basic settings uni x u Go to Parameter Output configuration u Select SELx and set the process value FLOW u Select ou1 or ou2 and set ImP u Select Parameter Pulse output x u Select ImPSx and set the volumetric...

Страница 31: ...nalogue signal ü Standard unit of measurement is selected EF CFG uni x u Go to EF OUT2 to configure output OUT2 u Select SEL2 and set the process value FLOW or TEMP u Select ou2 and set the function I analogue signal 4 20 mA u Select ASP2 and set the measurement value at which the output signal is 4 mA u Select AEP2 and set the measurement value at which the output signal is 20 mA The parameter se...

Страница 32: ...imum distance between FSPx and FEPx 20 of the final value of the measuring range If the measured value is outside the measuring range or in the event of an internal error the frequency signal indicated in the following figure is provided For measured values outside the display range or in case of a fault messages are displayed UL OL Err Frequency signal flow FOU OFF 0 2 1 3 4 5 FOU ON 130 120 100 ...

Страница 33: ...u1 and set FRQ u Select FSP1 and set the lower measured value at which 0 Hz is output FSP1 is only available for temperature measurement u Select FEP1 and set the upper measured value at which the frequency set at FrP1 100 is output u Select FrP1 and set the frequency for the upper measured value in Hz The parameter settings for FSP FEP and FrP can be changed subsequently in the main menu 10 3 5 2...

Страница 34: ...rocess val ues to invalid OFF All process values In case of an error the output goes to 3 5 mA OU Flow In case of an error the output goes to 3 5 mA If the process value Flow is defective the unit continues to provide the pro cess value Temperature Temperature In case of an error the output goes to 21 5 mA If the process value Temperature is defective the unit continues to provide the process valu...

Страница 35: ...scribes the setting options for adaptation to your specific application 10 4 1 Guided installation An installation wizard can be used for fast and easy parameter setting of the unit On screen instructions guide users through the entire parameter setting process See also Guided installation via an installation wizard Ò 22 10 4 1 1 Parameter setting via unit keys guided installation u Call up the me...

Страница 36: ...arameters Output Configuration u Select SELx and set process value for output OUTx 10 4 4 Damping Jumpy changes of the process value can be faded out via the damping time Use the damping time dAP to set after how many seconds the output signal has reached 63 of the final value if the measured value changes suddenly The set damping time stabilises the switching outputs the analogue outputs the disp...

Страница 37: ...ndstill 10 4 6 2 Parameter setting via IO Link low flow cut off u Select Parameter More settings Flow u Select LFC and set the limit below which a flow is evaluated as standstill 10 4 7 Flow direction The positive flow direction can be defined by the user This setting affects the following functions consumed quantity monitoring Ò Counting method of the totalisers 40 flow direction monitoring via s...

Страница 38: ...r calibration V2 measurement characteristic 2 after calibration 10 4 8 1 Parameter setting via unit keys calibration u Call up the menu EF CFG u Select CGA and set a value between 60 and 140 100 factory setting 10 4 8 2 Parameter setting via IO Link calibration u Select Parameter Application configuration u Select CGA and set a value between 60 and 140 100 factory setting 10 4 9 Totaliser reset Th...

Страница 39: ... is reset as soon as the maximum display range is exceeded 10 4 9 2 Parameter setting via IO Link totaliser reset 1 Manual reset u Select Parameter Totaliser u Execute command totaliser 1 reset totaliser 2 reset 2 Time controlled reset u Select Parameter Totaliser u Select rTox then set time in weeks w days d or hours h w The totaliser is automatically reset after the set time 3 Reset via external...

Страница 40: ...cted from the consumed quantity All volumetric flow values are totalled irrespective of the volumetric flow direction Tab 1 Counting method of the totalisers The counting method of Vol L cannot be set The lifetime totaliser totals all volumetric flow quantities irrespective of the flow direction Q 0 Q t Q V FPro1 FPro2 0 Q Q t Q V FPro1 FPro2 0 0 Q Q t Q V FPro1 FPro2 1 2 0 Q Q t Q V FPro1 FPro2 0...

Страница 41: ...de u Press and simultaneously for 10 s until Loc is displayed Unlock u Make sure that the unit is in the normal operating mode u Press and simultaneously for 10 s until uLoc is displayed 10 4 11 2 Parameter setting via IO Link lock unlock u Make sure that the unit is in the normal operating mode u Call up Parameters Display Setting u Select Loc and set the lock w Unlocking is possible on the unit ...

Страница 42: ...Parameter setting via unit keys reset the unit u Select the EF menu u Select rES and then the requested reset type w The unit carries out a reboot 10 4 12 2 Parameter setting via IO Link reset the unit u Select Parameters Setup u Execute command Reset application or Back to Box w The unit carries out a reboot 10 5 Display 10 5 1 Display language The display language can be set via the parameter La...

Страница 43: ...e operating mode Error messages are displayed via IO Link and the operating status LED when the display is switched off Display activation by pressing any key After 30 s of inactivity the display is switched off again If the unit measures a high internal temperature the display brightness is automatically adjusted Internal temperature of the unit 64 C brightness is reduced to 25 Internal temperatu...

Страница 44: ...aliser Vol 1 L4 current process value for flow and temperature and totaliser Vol 1 and signal quality L1 L2 Tem L3 L4 L2 Totl 20 3 l min Running Running 20 3 l min 17 6 C Running 17 6 C 20 3 l min Running 20 3 l min 17 6 C Running 20 3 l min L 99 00 Totalisator L 99 00 Totalisator L 99 00 Totalisator Niedrig Qualtität Signal Fig 26 selectable layouts 10 5 5 1 Parameter setting via unit keys displa...

Страница 45: ...perature The limits cFL x and cFH x can be freely selected within the measuring range and are independent of the output function set for OUT1 and OUT2 cFL cFH MAW MEW Fig 27 Example of the setting coL x G cF 10 5 6 1 Parameter setting via unit keys display colour setting u Go to EF DIS COLR u Select coL F and choose the font colour for the flow value Colour black white red green yellow Colour chan...

Страница 46: ...it offers a range of diagnostic functions Diagnostic messages can be provided via an output signal See also Switching signal Diagnosis Ò 26 This chapter describes diagnostic functions that provide information but not an output signal 10 6 1 Read totaliser values For the totalisers Vol 1 and Vol 2 the following values can be read at any time current volumetric flow quantity consumed quantity since ...

Страница 47: ... or Hi x to show the highest or lowest process value measured Clear memory u Execute command Reset Hi x and Lo x memory Reset Lo x memory Reset Hi x memory 10 6 3 Operating hours counter The operating hours since the first set up are stored by the unit The current value can be read via the IO Link interface u Select Parameters Diagnosis u Select Operating hours and read value 10 6 3 1 Reading via ...

Страница 48: ...ts the signal quality in three stages Signal quality Explanation Operating status LED Normal The unit operates without restrictions normal operation Lights green Low The signal quality is disturbed but the unit is still working within its specifications Lights blue No signal No medium is present or no signal can be created Flashes red The current value can be read from the unit s display or via th...

Страница 49: ...ve the measuring range When the simulation is started the values of the totaliser are frozen and the simulated totaliser is set to 0 The simulated flow value then has an effect on the simulated totaliser When the simulation is ended the initial totaliser values are restored During the simulation The simulation has no effect on the current process values The outputs operate as previously set The or...

Страница 50: ...nd Start Simulation w The simulation starts with the set values u To end the simulation Execute command Stop Simulation 10 7 Identification 10 7 1 Device information Unalterable device information is stored on the unit This includes Product name Product family Manufacturer Manufacturer ID Device ID Serial number Hardware firmware revision Description In addition further freely definable tags with ...

Страница 51: ...it editable parameters 10 7 2 Optical localisation The sensor can be located remotely in the system via the IO Link interface When the command is used the switching status LEDs will flash and IO Link will flash on the display 10 7 2 1 Parameter setting via IO Link optical localisation u Select Identification u Execute command Flash On u To end the flashing process Execute command Flash Off ...

Страница 52: ...Press or w The display changes between the user defined display layout the totaliser screen and the standard layout diS L L4 see figure w After 30 seconds the unit returns to the user defined display layout Running L 99 00 Totalisator L 20 00 Wert vor Reset Zeit seit Reset 2 Running 17 6 C 20 3 l min L 99 00 Totalisator Niedrig Qualtität Signal 3 20 3 l min Running 1 Fig 28 switching between the p...

Страница 53: ...f u Check whether LED M OFF is set and change setting if necessary Display off Operating status LED flashes red Internal unit temperature too high u Allow unit to cool down Title line Short circuit OUT1 OUT2 Process value line Operating status LED flashes red Switching status LEDs flash yellow rapidly Short circuit in both outputs u Check OUT1 and OUT2 for short circuit or excessive current Title ...

Страница 54: ...n the event of a warning the outputs react according to the setting under FOU OU Exception Short circuit 12 2 Error messages Display indication LED display Problem remedy Title line Hardware error Process value line ERROR Operating status LED Lights red Unit faulty malfunction u Replace the unit Title line Signal error Process value line NO SIGNAL Operating status LED flashes red No medium present...

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