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IFM Electronic LK1022, Operating Instructions Manual, Page: 21 / 35

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IFM Electronic LK1022 Operating Instructions Manual Download Page 21

21

UK

The unit can be programmed before or after installation. Exception: to 

adjust the overflow protection [cOP], the unit 

must

 be installed in the tank. 

10.2  Basic settings 

Setting ranges of all parameters: 

→ 12

Factory settings of all parameters: 

→ 14

10.2.1  Setting the unit of measurement [uni]

 

►

Enter [uni] before entering the values for SPx, rPx, OP or OFS. 

This avoids unintentional maladjustments.

 

►

Select [uni] 

 

►

Set the unit of measurement: [cm], [inch]

uni

10.2.2  Setting the offset [OFS]

The distance between tank bottom and lower edge of the measuring probe can be 

entered as offset value 

(→ 5.2.4)

. 

 

►

Set [OFS] before entering the values for SPx, rPx or OP. 

This avoids unintentional maladjustments.

 

►

Select [OFS]. 

 

►

Set the value for the offset. Note the set unit of measurement [uni].

OFS

10.2.3  Setting the medium [MEdI]

 

►

Select [MEdI] and set the corresponding sensitivity: 

MEdI

[CLW.1] = water, hydrous media, coolant emulsions.
[CLW.2] = water-based media for temperatures > 35 °C (installation in 

climatic tube).

[OIL.1] = oils with an increased DC value (e.g. some synthetic oils).
[OIL.2] = oils with a low DC value (e.g. mineral oils).
[Auto] =

automatic medium detection.

 

►

In case of doubt, select [OIL.2] for oils. 

 

►

Proper functioning is to be ensured by carrying out an application test!

Summary of Contents for LK1022

Page 1: ...Operating instructions Electronic level sensor LK10xx LK70xx UK 80264293 00 06 2017 ...

Page 2: ... 2 4 Offset to indicate the real level in the tank 11 5 2 5 Defined state in case of a fault 11 5 2 6 IO Link function 11 6 Installation 12 6 1 Installation instructions for operation with overflow protection 13 6 2 Installation instructions for operation without overflow protection 14 6 2 1 Installation in the inactive zone 14 6 2 2 Installation in the active zone A of the probe 15 6 3 Further no...

Page 3: ... P n 25 10 3 7 Response of the outputs in case of a fault FOUx 25 10 3 8 Configuration of the display diS 25 10 3 9 Reset all parameters to factory settings rES 25 11 Operation 26 11 1 Operating indicators 26 11 2 Read the set parameters 26 11 3 Error indications 27 11 4 Output response in different operating states 27 12 Technical data 28 12 1 Setting values OFS 28 12 2 Setting values OP 28 12 3 ...

Page 4: ...ctrical connection set up operation and maintenance of the unit must be carried out by qualified personnel authorised by the machine operator In order to guarantee the correct operation of the unit it is necessary to use the unit in media for which it is sufficiently resistant Technical data The responsibility as to the suitability of the unit for the application lies with the operator The manufac...

Page 5: ...ghly conductive and adhesive media e g glue shampoo granulates bulk material use in grinders increased risk of formation of deposits It is possible that foam of good conductivity is detected as level Test proper functioning in an application test For water and hydrous media with temperatures 35 C install the unit in a climatic tube accessories For automatic medium detection For media which are ver...

Page 6: ...sensor Observe the distances x u and c x min 4 0 cm u min 1 0 cm c max 14 0 cm Ground sensor and tank via an electrical connection 7 Observe the parameter setting sequence MEdI OIL 2 10 2 3 OFS u e g u 2 0 cm 5 2 4 OP Set the overflow protection OP at a distance y greater than 4 5 cm below the mounting element For distances y smaller than 4 5 cm there may be malfunctioning and error messages durin...

Page 7: ...imum permissible level b A distance a2 greater than 5 0 cm must be observed between maximum level b and mounting element Observe the parameter setting sequence MEdI Auto 10 2 3 OFS u e g u 1 0 m 5 2 4 SP1 Set the switch point at a distance a2 greater than 5 0 cm below the mounting element Fig 4 2 c b u a2 x Adjustable in step increments of 0 5 cm Switch point SP1 is used as overflow protection pum...

Page 8: ...ectric constant e g oils a correspondingly lower signal The active measurement zone of the sensor probe is composed of 16 capacitive measuring segments They generate measurement signals depending on the degree of coverage Fig 5 1 A I I E I Inactive zone A Active zone 16 active segments E Electrical field Dimensions Technical data sheet 5 2 Operating principle features of the unit The unit can be i...

Page 9: ...Automatic media detection can only function properly under certain conditions e g compliance with special mounting specifications restrictions for operation and maintenance 5 2 2 Notes on the integrated overflow protection With the parameter OP OP overfill protection one of the upper measuring segments is defined as integrated overflow protection If the overflow protection OP is activated an adjus...

Page 10: ...ent level selectable in cm or inch The display unit is defined by parameter setting The set unit of measurement and the switching status of the outputs are indicated by LEDs The unit signals via two switching outputs OUT1 OUT2 that a set limit has been exceeded or that the level is below the limit The parameters of the switching outputs can be set Hysteresis function normally open Fig 5 2 oux Hno ...

Page 11: ...er however is correctly transmitted via IO Link and can therefore be taken into consideration More information 5 2 6 5 2 5 Defined state in case of a fault In case of a fault a safe state can be defined for each output If a fault is detected or if the signal quality is below a minimum value the outputs pass into a defined state For this case the response of the outputs can be set via the parameter...

Page 12: ...dware and software visit www ifm com 6 Installation Fig 6 1 OP c L M c Probe length Zone for mounting elements Maximum extension length u y OP B Minimum distances Overflow protection Metal object inside the tank Table 6 1 LKx022 LKx023 LKx024 cm inch cm inch cm inch L rod length 26 4 10 4 47 2 18 6 72 8 28 7 M mounting zone 14 0 5 5 23 0 9 1 36 0 14 2 c max extension length Applies to installation...

Page 13: ... 6 2 Observe the notes on the integrated overflow protection The overflow protection OP must 1 be below the mounting element 2 be adjusted at a minimum distance y to it measured between the lower edge of the mounting element and the OP value Table 6 2 MEdI CLW 1 MEdI CLW 2 OIL 1 MEdI OIL 2 cm inch cm inch cm inch x 2 0 0 8 3 0 1 2 4 0 1 6 u 1 0 0 4 1 0 0 4 1 0 0 4 y LKx022 2 5 1 0 3 5 1 4 4 5 1 8 ...

Page 14: ... I1 see Table 6 3 Make sure that the maximum level b1 is not exceeded after installation see Table 6 3 Observe further minimum distances according to Table 6 4 Fig 6 2 A I1 c I2 b1 a1 x u I1 I2 Inactive zones A Active zone a1 Minimum distance between the inactive zone I1 and the maximum level b b1 Max level from the lower edge of the sensor without offset c Max permitted extension length Observe f...

Page 15: ...tion b L c a2 without offset Observe further minimum distances according to Table 6 4 Fig 6 3 c b2 L u a2 x c Max permitted extension length a2 Minimum distance between the mounting element and the maximum level b b2 Max level from the lower edge of the sensor Table 6 4 MEdI CLW 1 MEdI CLW 2 OIL 1 MEdI OIL 2 Auto cm inch cm inch cm inch x 2 0 0 8 3 0 1 2 4 0 1 6 u 1 0 0 4 1 0 0 4 1 0 0 4 a2 LKx022...

Page 16: ...ll sensor in the centre For mounting in metal pipes the inside pipe diameter d must be at least Table 6 5 MEdI CLW 1 MEdI CLW 2 OIL 1 MEdI OIL 2 Auto cm inch cm inch cm inch d 4 0 1 6 6 0 2 4 10 0 4 0 Marking the installation height Fix the set installation height with the supplied stainless steel tube clip If the sensor is removed from the fixture for maintenance reasons the clip serves as a limi...

Page 17: ...output Colours to DIN EN 60947 5 2 Example circuits 2 x positive switching 2 x negative switching L L 3 4 2 1 BU BK WH BN 2 OUT2 4 OUT1 L L 3 4 2 1 BU BK WH BN 2 OUT2 4 OUT1 For safe function the sensor housing must be electrically connected to the counter electrode grounding For this use the housing connection see drawing and a short piece of cable with a core cross section of at least 1 5 mm2 Wh...

Page 18: ...s switched LED 8 Switching status OUT1 lights when output 1 is switched 9 Mode Enter button Selection of the parameters and acknowledgement of the parameter values 10 Set button Setting of the parameter values scrolling by holding pressed incremental by pressing briefly 12 Alphanumeric display 4 digits Display of the current level Indication of the parameters and parameter values Operating and fau...

Page 19: ...donE S S S S S S M M rES S M M M M M M M M S ou1 Hno 0 0 ou2 dS1 dr1 0 0 S S S M Hnc M M dS2 0 0 S M M M M M uni P n M M dr2 0 0 S S S S M M M OFS S M M M S 0 FOU1 OFF M S FOU2 OFF diS On cm PnP M S M S M 9 5 9 5 FH2 20 0 FL2 S M S M 19 5 cOP Menu items highlighted in grey e g cOP are only active when assigned parameters have been selected ...

Page 20: ...t again with step 1 Finishing the parameter setting Wait for 30 s or press and hold Mode Enter The current measured value is displayed Release Mode Enter the parameter setting is completed Decrease the value let the display move to the maximum setting value Then the cycle starts again at the minimum setting value Timeout If no button is pressed for 30 s during programming the unit returns to the o...

Page 21: ... lower edge of the measuring probe can be entered as offset value 5 2 4 Set OFS before entering the values for SPx rPx or OP This avoids unintentional maladjustments Select OFS Set the value for the offset Note the set unit of measurement uni OFS 10 2 3 Setting the medium MEdI Select MEdI and set the corresponding sensitivity MEdI CLW 1 water hydrous media coolant emulsions CLW 2 water based media...

Page 22: ...Px FHx after setting SPx FHx If OP is increased SPx FHx also increases if OP and SPx FHx are close together 1 x step increment When the overflow protection is deactivated OP OFF or MEdl Auto the safe function of the sensor must be verified with particular care For this switch on and switch off processes and special operating states such as very full tanks possible maintenance and cleaning operatio...

Page 23: ...by calling up the parameter OP Note the offset if necessary The current level is to be determined manually since the unit is not yet ready for operation before the adjustment With the setting MEdI Auto or OP OFF the parameter cOP is not available When the overflow protection is activated OP value an adjustment cOP must be carried out each time MEdI or OP has been changed In this case appears in th...

Page 24: ... Select rPx and set the value at which the output resets rP1 rP2 rPx is always smaller than SPx The unit only accepts values which are lower than the value for SPx If SPx is shifted rPx also shifts provided that the lower end of the setting range is not reached 10 3 3 Set the switching limits FHx FLx window function Make sure that for oux the function Fno or Fnc is set Set FHx first then FLx Selec...

Page 25: ... quality is considered to be a fault Overflow is not considered to be a fault 10 3 8 Configuration of the display diS Select diS and set the value diS On The display is switched on in the operating mode Update of the measured values every 500 ms OFF The display is switched off in the operating mode When one of the buttons is pressed the current measured value is displayed for 30 s The indicator LE...

Page 26: ...y The overflow protection OP is reached overflow warning or the level is above the active zone It is necessary to adjust cOP of the overflow protection OP Loc Unit locked via operating keys parameter setting impossible For unlocking press the two setting buttons for 10 s uLoc Unit is unlocked parameter setting is possible again C Loc The unit is temporarily locked Parameter setting via IO Link is ...

Page 27: ...ecessary Clean the probe Observe the notes on installation Correct the position of the overflow protection Repeat the adjustment Deactivate OP 5 2 2 SC1 LED 8 SC2 LED 7 Flashing Short circuit in switching output OUT1 or OUT2 Remove the short circuit SC LED 7 LED 8 Flashing Short circuit in both switching outputs Remove the short circuit PArA Faulty data set Reset to factory settings rES 11 4 Outpu...

Page 28: ...5 Setting values OP Tab 12 2 OPx LKx022 LKx023 LKx024 cm inch cm inch cm inch 20 4 8 0 40 7 16 0 61 23 9 19 1 7 5 38 3 15 1 57 22 4 17 9 7 1 35 8 14 1 53 21 0 16 7 6 6 33 4 13 1 50 19 5 15 5 6 1 31 0 12 2 46 18 1 14 3 5 6 28 5 11 2 42 16 7 13 0 5 1 26 1 10 3 39 15 2 11 8 4 7 23 6 9 3 35 13 8 10 6 4 2 21 2 8 3 31 12 3 9 4 3 7 18 8 7 4 28 10 9 8 2 3 2 16 3 6 4 24 9 5 6 9 2 7 13 9 5 5 20 8 0 OPx Sett...

Page 29: ...stance between OP and the lower edge of the probe The values apply if OFS 0 If OFS 0 they increase by the set offset value Example LK1022 According to Table 12 2 OP has to be set to segment 20 4 cm OFS 7 0 cm OP is to be set to 20 4 cm 7 0 cm 27 4 cm ...

Page 30: ...ver Requested distance y of the overflow protection OP from the cover is defined Without offset OFS 0 OP L c y With offset OFS u OP L c y u or OP B y Example c 3 0 cm y 5 0 cm u 1 0 cm Without offset OP 26 4 cm 3 0 cm 5 0 cm 18 4 cm With offset OP 26 4 cm 3 0 cm 5 0 cm 1 0 cm 19 4 cm Fig 12 1 OP c z B L 12 2 2 Definition from the bottom Response level z of the overflow protection OP from the tank ...

Page 31: ...emove the sensor and clean it carry out maintenance Install sensor exactly in the same position as before Otherwise check the parameter OP and carry out cOP once again 13 1 Maintenance information for operation without overflow protection MEdI Auto or OP OFF the overflow protection is deactivated The unit must be reinitialised in the following cases switch the operating voltage briefly off and on ...

Page 32: ...o be adjusted 14 Factory setting Factory setting User setting LKx022 LKx023 LKx024 SP1 10 0 19 5 29 0 rP1 9 5 19 0 28 0 SP2 20 0 39 0 59 0 rP2 19 5 38 5 58 0 OP 20 4 40 7 60 6 MEdI LK10xx CLW 1 LK70xx Auto cOP rES ou1 Hno ou2 Hnc dS1 0 0 dr1 0 0 dS2 0 0 dr2 0 0 uni cm P n PnP OFS 0 FOU1 OFF FOU2 OFF diS On Not available inactive for LK70xx ...

Page 33: ...alarm ou2 hysteresis function normally open Hno XX X display value A early warning B alarm If the level is below rP1 output 1 switches until liquid is refilled If SP1 is reached again output 1 switches off If the level is above SP2 output 2 switches If the level falls below rPs or if there is a wire break output 2 switches off By setting SP1 the maximum level can be controlled monitored the value ...

Page 34: ...low SP2 to suppress wave movements ou2 hysteresis function normally closed Hnc OP overflow protection XX X display value A empty B overflow protection If SP1 is exceeded output 1 switches submersible pump ON If the level is below rP1 again output 1 switches off submersible pump OFF If SP2 is exceeded or if there is a wire break output 2 switches off It is recommended to use the integrated overflow...

Page 35: ...ally open Fno FH2 SP1 rP1 FL2 XX X display value A refill B min monitoring C max monitoring If the level is below rP1 output 1 switches until liquid is refilled If SP1 is reached again output 1 switches off If the level is below FL2 or above FH2 or if there is a wire break output 2 switches OFF alarm The logical operation between the outputs 1 and 2 indicates whether there is overflow or the actua...

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