Table of Contents
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Table of Contents
Related Manuals for IFM Electronic LK1022
Summary of Contents for IFM Electronic LK1022
- Page 1 Operating instructions Electronic level sensor LK10xx LK70xx...
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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 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 Basic settings ...................21 10.2.1 Setting the unit of measurement [uni] ..........21 10.2.2 Setting the offset [OFS] ..............21 10.2.3 Setting the medium [MEdI] ...............21 10.2.4 Setting the overflow protection [OP] ..........22 10.2.5 Adjusting the overflow protection [cOP] ..........22 10.3 Setting of output signals ................24 10.3.1 Setting the output function [oux] for OUTx ........24 10.3.2 Set the switching limits [SPx] /[rPx] (hysteresis function) ....24 10.3.3 Set the switching limits [FHx] / [FLx] (window function) ....24...
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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 • 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
3 Functions and features 3.1 Applications The unit was specially designed to meet the requirements of machine tool building. It is specially 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
The indicated minimum distances apply exclusively for each separately described case. 4.1 Example configuration 1 Applied sensor: LK1022 (probe length L = 264 mm) Medium to be detected: Mineral oil Operating mode: Manual media selection with overflow protection (factory setting LK10xx) →... -
Page 7: Example Configuration 2
4.2 Example configuration 2 Applied sensor: LK7023 (probe length L = 472 mm) Medium to be detected: Coolant emulsion Operating mode: Automatic medium detection (factory setting LK70xx) → 5.2.1. Type of installation: Metal tank, installation to Fig.4-2 ► Install sensor. Fig. -
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: Operating Modes
5.2.1 Operating modes 1. Manual media selection with overflow protection (factory setting LK10xx) Recommended! Highest operational reliability! The medium to be detected is set manually [MEdI]. In addition, an integrated, independently functioning overflow protection is available. 2. Manual media selection without overflow protection Medium operational reliability! The medium to be detected is set manually as described under 1. -
Page 10: Display And Switching Functions
even though the corresponding switch point has been exceeded (e.g. due to application-related malfunctions). • Typically the overflow protection OP reacts when the selected measuring segment has been reached (a few mm before the set OP value). • The overflow protection OP replies immediately and without delay. The set delay times (e.g. -
Page 11: Offset To Indicate The Real Level In The Tank
Fig. 5-2 Fig. 5-3 L : level HY: hysteresis FE:window 5.2.4 Offset to indicate the real level in the tank The distance 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 (reference point = bottom of the tank). -
Page 12: Installation
With a PC, suitable IO-Link software and an IO-Link adapter cable communication is possible when the system is not in operation. For 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 visit www.ifm.com. -
Page 13: Installation Instructions For Operation With Overflow Protection
6.1 Installation instructions for operation with overflow protection [MEdI] = [CLW..] or [OIL..] [OP] = [value ...] (Overflow protection OP activated) It is permitted to fix the mounting elements within the mounting zone (M) (Fig. 6-1). ► Observe the maximum permitted extension length (c) according to Table 6-1. ►... -
Page 14: Installation Instructions For Operation Without Overflow Protection
6.2 Installation instructions for operation without overflow protection [MEdI] = [Auto] or [OP] = [OFF] (Overflow protection OP deactivated!) 6.2.1 Installation in the inactive zone Between the maximum level (b1) and the inactive zone (I1), minimum distance (a1) must be adhered to (see Fig. 6-2 and Table 6-3)! ►... -
Page 15: Installation In The Active Zone A Of The Probe
6.2.2 Installation in the active zone A of the probe A 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). -
Page 16: Further Notes On Installation
In case of automatic medium detection [MEdl] = [Auto] or deactivated overflow protection [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 may not be completely covered by the medium! The indicated minimum distances ensure this. -
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 cm. LED 2 Indication in inch. LED 3 - 6 Not used. LED 7 Switching status OUT2 (lights when output 2 is switched). LED 8 Switching status OUT1 (lights when output 1 is switched). -
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] several times 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 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] ►... -
Page 22: Setting The Overflow Protection [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]. >...
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Page 24: Setting Of Output Signals
10.3 Setting of output signals 10.3.1 Setting the 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 protection, the setting [oux] = [Hnc] (NC function) is recommended. -
Page 25: Set The Switch-Off Delay [Drx]
10.3.5 Set the switch-off delay [drx] ► Select [drx] and set the value between 0.0 and 60 s. The switching delay takes place according to VDMA. 10.3.6 Set output logic [P-n] ► Select [P-n] and set [PnP] or [nPn]. 10.3.7 Response of the outputs in case of a fault [FOUx] ►... -
Page 26: Operation
11 Operation After switch-on of the operating voltage, the unit is in the operating mode (= normal 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. 11.1 Operating indicators [----] (continuous) Initialisation phase after power on. -
Page 27: Error Indications
11.3 Error indications Possible cause Recommended measures [Err] Fault in the electronics. ► Replace the unit. • Interfering sources ► Check electrical connection. • Faulty wiring [SEnS] ► Check the connection between the • Problems with the supply sensor and the tank ground. voltage Error during adjustment of the ►... -
Page 28: Technical Data
12 Technical data Technical data and scale drawing at www.ifm.com. 12.1 Setting values [OFS] Table 12-1 [cm] [inch] Setting range 0...200.0 0...78.8 LKx022 LKx022 LKx024 LKx024 LKx023 LKx023 Step increment Setting values [OP] Tab. 12-2 LKx022 LKx023 LKx024 [cm] [inch] [cm] [inch] [cm]... - Page 29 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...
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Page 30: Calculation Aids [Op]
12.2 Calculation aids [OP] For proper functioning of the overflow protection OP a minimum distance (y) (Fig. 12-1) must be observed (→ 6.1). The following applies (Fig. 12-1): B: tank height L: probe length B + c = L + u c: outside length (maximal →... -
Page 31: Setting Ranges [Spx] / [Fhx] And [Rpx] / [Flx]
12.3 Setting ranges [SPx] / [FHx] and [rPx] / [FLx] Table 12-3 LKx022 LKx023 LKx024 [cm] [inch] [cm] [inch] [cm] [inch] [SPx] / [FHx] 2.5...20.0 1.0...8.0 3.5...39.0 1.4...15.4 6.0...59.0 2.5...23.5 [rPx] / [FLx] 2.0...19.5 0.8...7.8 3.0...38.5 1.2...15.2 5.0...58.0 2.0...23.0 Step increment The values apply if [OFS] = [0]. -
Page 32: Factory Setting
• After a change of media with dielectric constants that differ significantly. For manual selection of media, first the [MEdI] setting needs to be adjusted. 14 Factory setting Factory setting User setting LKx022 LKx023 LKx024 10.0 19.5 29.0 19.0 28.0 20.0 39.0 59.0... -
Page 33: Applications
15 Applications 15.1 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 34: Pumping Station
15.2 Pumping station Empty the tank with overflow protection 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: overfill protection (for the LK10xx, it is recommended to use the integrated overflow protection (parameter [OP]) maximum value exceeded →... -
Page 35: Storage Tank
15.3 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.