Table of Contents
Advertisement
Quick Links
Advertisement
Table of Contents
Related Manuals for IFM LK 022 Series
Summary of Contents for IFM LK 022 Series
- Page 1 Operating instructions Electronic level sensor LK10xx LK70xx...
-
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 Application area ....................5 3.2 Restriction of the application area ..............5 4 Getting started .....................6 4.1 Example configuration 1 ................6 4.2 Example configuration 2 ................7 5 Function .......................8 5.1 Measuring principle ..................8 5.2 Operating principle / features of the unit ............8... - Page 3 10.2.1 Set unit of measurement [uni] ............21 10.2.2 Set offset [OFS] ................21 10.2.3 Set medium [MEdI] ................21 10.2.4 Set overflow prevention [OP] ............22 10.2.5 Adjust overflow prevention [cOP] ............22 10.3 Set output signals ..................24 10.3.1 Set output function [oux] for OUTx ..........24 10.3.2 Define switching limits [SPx] / [rPx] (hysteresis function) ....24 10.3.3 Define switching limits [FHx] / [FLx] (window function) .....24 10.3.4 Set switching delays [dSx] for the switching outputs ......24...
-
Page 4: Preliminary Note
1 Preliminary note 1.1 Symbols used ► Instructions > 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 • Read this document before setting up the product and keep it during the entire service life. -
Page 5: Functions And Features
3 Functions and features 3.1 Application area The unit was especially designed to meet the requirements of machine tool building. It is particularly suitable for monitoring coolant emulsions (also dirty) as well as cutting and hydraulic oils. 3.2 Restriction of the application area •... -
Page 6: Getting Started
4 Getting started For fast set-up, the example configurations described in the following can be used for most applications. The indicated minimum distances apply exclusively to each separately described case. 4.1 Example configuration 1 Unit: LK1022 (probe length L= 264 mm) Medium to be detected: Mineral oil Operating mode:... -
Page 7: Example Configuration 2
4.2 Example configuration 2 Unit LK7023 (with factory setting); probe length L = 472 mm Medium to be detected: coolant emulsion Operating mode: automatic medium detection (factory setting LK70xx) (→ 5.2.1) Installation environment: metal tank, installation to Fig. 4-2 Fig. 4-2 ►... -
Page 8: Function
5 Function 5.1 Measuring principle The sensor determines the level according to the capacitive measuring principle: • An electrical field [E] is generated Fig. 5-1 and influenced by the medium to be detected. This change to the field causes a measurement signal that is electronically evaluated. -
Page 9: Notes On Integrated Overflow Prevention
The medium to be detected is set manually [MEdI]. In addition, an integrated, independently functioning overflow prevention is available. 2. Manual media selection without overflow prevention Medium operational reliability! The medium to be detected is set manually as described under 1. However, the overflow prevention is deactivated. -
Page 10: Display And Switching Functions
• Typically the overflow prevention OP reacts when the selected measuring segment has been reached (a few mm before the set OP value). • The overflow prevention OP reacts immediately and without delay. The set delay times (e.g. of a switch point directly below) have no effect on the overflow prevention OP. -
Page 11: Offset For Indicating The Real Level In The Tank
Fig. 5-2 Fig. 5-3 L: level HY: hysteresis FE: window 5.2.4 Offset for indicating the real level in the tank The zone between tank bottom and lower edge of the probe can be entered as offset value [OFS]. So display and switch points refer to the actual level (point of reference = tank bottom). -
Page 12: Installation
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. 6 Installation Fig. 6-1 probe length u ... -
Page 13: Installation Instructions For Operation With Overflow Prevention
6.1 Installation instructions for operation with overflow pre- vention [MEdI] = [CLW..] or [OIL..] [OP] = [value ...] (overflow prevention OP activated) It is permitted to fix the mounting elements within the mounting zone (M) (Fig. 6-1). ► Adhere to the maximum permitted outside length (c) according to Table 6-1. ►... -
Page 14: Installation Instructions For Operation Without Overflow Prevention
6.2 Installation instructions for operation without overflow prevention [MEdI] = [Auto] or [OP] = [OFF] (overflow prevention OP deactivated) 6.2.1 Installation in the inactive zone Between the maximum level (b1) and the inactive zone (I1), the minimum distance (a1) has to be adhered to (see Fig. 6-2 and Table6-3)! ►... -
Page 15: Installation In The Active Zone A Of The Probe
6.2.2 Installation in the active zone A of the probe The minimum distance (a2) between maximum level (b2) and mounting element has to be observed (see Fig. 6-3 and Table 6-4)! ► Fix mounting elements in the mounting Fig. 6-3 zone (M) (Fig. -
Page 16: Other Installation Notes
In case of automatic medium detection [MEdI] = [Auto] or deactivated overflow prevention [OP] = [OFF], the sensor reinitialises itself each time it is switched on and makes adjustments to the medium and the installation environment. The active zone / measuring range must not be completely covered by the medium. -
Page 17: Electrical Connection
7 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 black OUT2... -
Page 18: Operating And Display Elements
8 Operating and display elements 3 4 5 6 Mode/Enter 1 to 8: Indicator LEDs LED 1 indication in centimetres LED 2 indication in inches LEDs not used 3 - 6 LED 7 switching status OUT2 (on if output 2 is switched) LED 8 switching status OUT1 (on if output 1 is switched) 9: [Mode/Enter] button... -
Page 19: Menu
9 Menu 9.1 Menu structure - - - - 10.0 10.0 20.0 20.0 19.5 19.5 MEdl CLW.1 20.4 donE FOU1 FOU2 Menu items highlighted in grey, e.g. [ cOP ], are only active when assigned parameters have been selected. -
Page 20: Parameter Setting
10 Parameter setting 10.1 Parameter setting in general ► Press [Mode/Enter] until the required parameter is displayed. To select parameters in the extended Mode/Enter Set menu (menu level 2): ► Select [EF] and briefly press [Set]. ► Press and hold [Set]. >... -
Page 21: Basic Settings
The unit can be configured before or after installation. Exception: To adjust the overflow prevention [cOP], the unit must be instal- led in the tank. 10.2 Basic settings Setting ranges of all parameters: (→ 13) Factory settings of all parameters: (→ 15) 10.2.1 Set unit of measurement [uni] ►... -
Page 22: Set Overflow Prevention [Op]
The settings [CLW.1] and [CLW.2] suppress deposits (e.g. metal swarf). The settings [OIL.1] and [OIL.2] suppress a bottom layer of higher dielectric water or swarf which is a few cm high. If no oil layer is present (or if it is very thin), the bottom layer is detected. - Page 23 ► Select [cOP]. ► Press [SET] and keep it pressed. > [cOP] flashes for some seconds; then the continuous display indicates that the adjustment is being made. > If the adjustment is successful, [donE] is displayed. ► Confirm with [Mode/Enter]. >...
-
Page 24: Set Output Signals
10.3 Set output signals 10.3.1 Set output function [oux] for OUTx ► Select [oux] and adjust the switching function: [Hno] = hysteresis function / normally open [Hnc] = hysteresis function / normally closed [Fno] = window function / normally open [Fnc] = window function / normally closed If the switching output is used as an overflow prevention, the setting [oux] = [Hnc] (NC function) is recommended. -
Page 25: Set Reset Delay [Drx]
10.3.5 Set reset delay [drx] ► Select [drx] and set the value between 0.0 and 60 s. The switch-off delay reacts according to VDMA. 10.3.6 Define switching logic [P-n] ► Select [P-n] and set [PnP] or [nPn]. 10.3.7 Define response of the outputs in case of a fault [FOUx] ►... -
Page 26: Notes On Parameter Setting Via Io-Link
11 Notes on parameter setting via IO-Link On delivery the LK10xx-type unit is not operational. First, the integrated overfill prevention OP has to be adjusted. Depending on the application, OP adjustment can be carried out in diffe- rent ways: • directly on the display (→ 10). •... -
Page 27: Operation
12 Operation After switch-on of the operating voltage, the unit is in the operating mode (= nor- mal operating mode). It carries out its measurement and evaluation functions and generates output signals according to the set parameters. ► Check whether the unit operates correctly. 12.1 Operation indication [----] (continuous) Initialisation phase after power on... -
Page 28: Error Indications
12.3 Error indications Table 11-2 Possible cause Recommended measures [Err] Fault in the electronics ► Replace the unit. • Interfering sources (e.g. EMC) ► Check electrical connection. • Faulty wiring [SEnS] ► Check the connection between the • Problems with the supply sensor and the tank ground. -
Page 29: Technical Data
13 Technical data Technical data and scale drawing at www.ifm.com. 13.1 Setting values [OFS] Table 12-1 [cm] [inch] Setting range 0...200.0 0...78.8 LKx022 LKx023 LKx024 LKx022 LKx023 LKx024 Step increment 13.2 Setting values [OP] Table 12-2 LKx022 LKx023 LKx024 [cm]... -
Page 30: Calculation Aids [Op]
The indicated values for [OP] refer to the distance 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. -
Page 31: Definition "From The Bottom
13.3.2 Definition "from the bottom" Response level (z) of the overflow prevention OP from the tank bottom is defined. • Without offset ([OFS] = [0]): [OP] = z - u • With offset ([OFS] = u): [OP] = z Example: z = 18.0 cm (from the tank bottom), u = 1.0 cm Without offset: [OP] = 18.0 cm - 1.0 cm = 17.0 cm With offset: [OP] = 18.0 cm... -
Page 32: Maintenance Information For Operation Without Overflow Prevention
14.1 Maintenance information for operation without overflow prevention [MEdI] = [Auto] or = [OFF] (overflow prevention OP deactivated) The unit must be reinitialised in the following cases (switch the operating voltage briefly off and on again): • after all maintenance operations. •... -
Page 33: Factory Setting
15 Factory setting Factory setting User settings LKx022 LKx023 LKx024 10.0 19.5 19.0 20.0 39.0 19.5 38.5 20.4 40.7 MEdI LK10xx: CLW.1 LK70xx: Auto ---- ---- FOU1 FOU2 * Not available / inactive for LK70xx... -
Page 34: Applications
16 Applications 16.1 Hydraulic tank Minimum level monitoring with early warning and alarm Switching output 1: early warning slightly above rP1 (to suppress wave movements) below preset level → early warning, start refilling hysteresis function, normally closed (Hnc) Switching output 2: alarm min. -
Page 35: Pumping Station
16.2 Pumping station Empty the tank with overflow prevention Switching output 1: control to empty tank upper value exceeded → submersible pump ON lower value reached → submersible pump OFF hysteresis function, normally open (Hno) Switching output 2: overflow prevention (for the LK10xx, it is recommended to use the integrated overflow prevention (parameter [OP]) maximum value exceeded →... -
Page 36: Storage Tank
16.3 Storage tank Monitoring of the acceptable range (alarm) and level control Switching output 1: refilling upper preset value reached → finish refilling below lower preset value → start refilling hysteresis function, normally closed (Hnc) Switching output 2: safety function min - max max. - Page 37 More information at www.ifm.com...
Need help?
Do you have a question about the LK 022 Series and is the answer not in the manual?
Questions and answers