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LC502 control unit for MonoFlex Operating instructions single-line centralized lubrication systems Version 02...
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230 VAC Menu structure of Status main lines 10. Operational and pump faults 4. LC502 Factory settings on a single-line 7. Status display 10.1 Operational malfunctions centralized lubrication system 4.1 General design of a single-line centralized Status - Display of current device 10.2 System errors...
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Error LED Displays fault notification Red LED flashes = error detected LC502 control screen Red LED lights up = fault on a signal input, no error detected on pump control unit (error is outside The display and control unit is protected from...
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Page 4 1. Display and control elements of control screen Display and control elements of control screen Drawing Description Function Operator keys Operator keys Go to menu selection (navigation) Edit numerical values Operator keys Operator keys for menu selection (navigation) (arrow key up/down/left) Go to the selected menu based on direction of arrow Operator keys for changing numerical values...
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The Service menu selection is The first menu level shows language selection. password-protected and can only be The language that is currently selected flashes. accessed by SKF employees. Upon confirmation, the main menu will be dis- played in the selected language.
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Main menu items Display Description Info Display device-speciic data such as serial number or irmware Config.uration Parameter coniguration Status Display current status of control unit Service menu Service Menu level only enabled for SKF service personnel Display...
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Page 7 2. Display and operating menu Information mode Step Display Description Entry mask/language selection The German version is active by default (flashing). English Press “arrow key up” to switch to the English version. Deutsch Press the ENTER key. Main menu Info Press the ENTER key to go to the Info menu.
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Page 8 2. Display and operating menu Conig. - Coniguration mode Configuration mode is started by selecting Configuration menu, Table 1 of 2 <Config.> in the main menu and pressing the Step Display Description ENTER key. The system first queries whether Entry mask/language selection you want to edit or simply view the configura- tion data.
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Page 9 2. Display and operating menu Configuration menu, Table 2 of 2 Step Display Description Edit View Press the ENTER key to enter the password prompt menu. Press the ENTER key. Edit Password menu The following password prompt prevents modifications by unauthorized persons. Password Press <arrow key up>...
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Page 10 3. Menu structure 3. Menu structure Menu structure of Info English Deutsch Info Config. Status ØØØØØØØØ Service Serial ØØØØ Firmware Sys time Mot time ØØØ-ØØØ-ØØØ- Err time LØ v1.Ø.a.1 Sys time ØØØØØh ØØm ØØ s Mot time ØØØØØh ØØm ØØ...
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Page 11 3. Menu structure Menu structure of Conigurations - View English Info Deutsch Pause Config. Pause System ØØØØØh Pro Flex Status View Runtime Settings Mono Flex ØØm ØØs Edit Service Dwell time Inputs Duo Flex Runtime Time Outputs ØØØØØh Valves Line 1 ØØm ØØs...
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Page 12 3. Menu structure Menu structure of Conigurations - Edit English Pause Pause Deutsch Info ØØØØØh Pro Flex System Runtime Config. ØØm ØØs Mono Flex Settings Dwell time Status Duo Flex Imputs Runtime Service Time ØØØØØh Outputs Valves Line 1 ØØm ØØs Default p-switch...
Page 13 3. Menu structure Menu structure of Status English Deutsch Info Config. Runntime/ Pause Status Line 1 ØØØØØh Lubtime Service Line 2 ØØm ØØs Inputs Errors IO state IO conn. Input 1 Temp. Menu pressure switch Digital Input 2 Output 1 (2) Output 1 p-switch...
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Page 14 4. LC502- Factory settings on a single-line centralized lubrication system 4. LC502- Factory settings on a single-line centralized lubrication system 4.1.1 System design General design of a single-line cen- See page 15. tralized lubrication system Pressure is built up from the pump element (3),...
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Page 15 4. LC502- Factory settings on a single-line centralized lubrication system Single-line centralized lubrication system with pressure monitoring Legend KFGL unit W1 control with agitator Pump element LC502 display Connector plug for pressure switch and error output 230 VAC connector plug...
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Page 16 4. LC502- Factory settings on a single-line centralized lubrication system General system inputs on a single-line centralized lubrication system Requirement: The Configuration menu was pre-selected in the Main menu. System inputs, Table 1 of 4 Step Display Description...
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Page 17 4. LC502- Factory settings on a single-line centralized lubrication system System inputs, Table 2 of 4 Step Display Description Assign a function to the selected input Disabled MC Count The following are available for selection: Disabled = No monitoring system enabled...
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Page 18 4. LC502- Factory settings on a single-line centralized lubrication system System inputs, Table 3 of 4 Step Display Description Assign the <Type> switch type Function Select Type using <arrow key down>. Type Press the ENTER key. Polarity You will enter the (Sensor) Type menu.
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Page 19 4. LC502- Factory settings on a single-line centralized lubrication system System inputs, Table 4 of 4 Step Display Description Configure the <p-Active> analog changeover value of a pressure switch Analogue Select p-Active using <arrow key down>. Digital Press the ENTER key.
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Page 20 4. LC502- Factory settings on a single-line centralized lubrication system Factory assignment of LC502 control inputs 4.3.1 Control inputs The MonoFlex standard pump contains a maximum of 4 control inputs. By default, they are assigned as follows: Input 1...
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Page 21 4. LC502- Factory settings on a single-line centralized lubrication system General system outputs on a single-line centralized lubrication system Requirement: The Configuration menu was pre-selected in the Config menu. System outputs, Table 1 of 3 Step Display Description...
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Page 22 4. LC502- Factory settings on a single-line centralized lubrication system System outputs, Table 2 of 3 Step Display Description Activating the changeover valve Disabled You will enter the menu for activating the changeover valve. The following are available for selection:...
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Page 23 4. LC502- Factory settings on a single-line centralized lubrication system Factory assignment of LC502 control outputs 4.5.1 Control outputs System outputs, Table 3 of 3 The MonoFlex standard pump contains a Step Display Description maximum of 2 control outputs, plus an error Select the error output output for triggering a possible fault signal.
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Page 24 5. Options for customer adjustment of a single-line centralized lubrication system 5. Options for customer adjustment 5.1 Coniguring the pause times, runtimes, and dwell times Requirement: The Configuration menu was pre-selected in the Config menu. Pause times, runtimes, and dwell times , Table 1 of 2 Step Display Description <Pause> stands for the programmed pause Select the <Line1>...
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Page 25 5. Options for customer adjustment of a single-line centralized lubrication system Pause times, runtimes, and dwell times , Table 2 of 2 Step Display Description Set the pause time, runtimes, and dwell when p-switch is enabled for main line 1 Pause If a dwell time has already been activated in the p-switch sub-menu, an additional <Dwell> menu item will be displayed.
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Page 26 5.2 Coniguring the valve function for pressure build-up and release Requirement: The Configuration menu was pre-selected in the Config menu. Coniguring the valve function for pressure build-up and release, Table 1 of 2 Step Display Description Select the <Line1> main line The switching function of the changeover valve System Select the Settings menu item using <arrow key <Valve SW>...
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Page 27 Coniguring the valve function for pressure buildup and release, Table 2 of 2 Step Display Description Defining the switching function of the changeover valve You will enter the menu for pressure release/buildup of the changeover valve. Release In this menu, you can define whether the changeover valve for main line 1 (main line 2) reacts to actua- Buildup tion by switching to the control position for pressure release = <Release>...
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Page 28 5. Options for customer adjustment of a single-line centralized lubrication system Enabling/disabling dwell time Requirement: The Configuration menu was pre-selected in the Config menu. Enabling/disabling dwell time , Table 1 of 2 Step Display Description Select the <Line1> main line <Dwell>...
Page 29 5. Options for customer adjustment of a single-line centralized lubrication system Enabling/disabling dwell time , Table 2 of 2 Step Display Description Activating the switching function of pressure switch <p-switch> Release Release = Input (1,2,3, or 4) is used for pressure release Buildup = Input (1,2,3, or 4) is used for pressure buildup Buildup...
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Page 30 5. Options for customer adjustment of a single-line centralized lubrication system Specifying the runtime limitation through number of agitator rotations Requirement: The Configuration menu was pre-selected in the Config menu. Speciication of runtime limit, Table 1 of 2 Step Display Description < Rotation> By default, the quantity of lubri- Set the agitator rotations <Rotation>...
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Page 31 5. Options for customer adjustment of a single-line centralized lubrication system Speciication of runtime limit, Table 2 of 2 Step Display Description Activate the stop input for agitator <Mon+Stop> <Imm. Stop> You will enter the Stop menu, Mon+Stop for example for input 4; assigned by default for W1 control. Imm.
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Page 32 5. Options for customer adjustment of a single-line centralized lubrication system Additional optional settings (depending on pump coniguration) Requirement: The Configuration menu was pre-selected in the Config menu. The following menus can be enabled depending on how the inputs are used: <ExtDelay> (pause extension: <...
Page 33 5. Options for customer adjustment of a single-line centralized lubrication system Additional optional settings Step Display Description Activate the delay extension for main line 1 (main line 2) <ExtDelay> Valves You will enter the following sub-menu Pause delay time p-switch The input to which the extension delay was assigned will be displayed.
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Page 34 6. Options for customer adjustment of a single-line centralized lubrication system with two main lines 6. Options for customer adjustment of a centralized lubrication system with two main lines Requirement: The Configuration menu was pre-selected in the Config menu. Options for customer adjustment of main line 2 The options for customer adjustment of a sin- Step...
Page 35 7. Status display 7. Status display Display the current control status Status - Display of current device status Configuration menu Step Display Description Entry mask/language selection The German version is active by default (flashing). Press “arrow key up” to switch to the English English version.
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Page 36 7. Status display Lub - Runtimes of lubrication process Reading the enabled inputs Runtimes and pause times, Table 1 of 4 Step Display Description Runtimes of lubrication process Errors The Lub menu item is already enabled (flashing). IO State Press the ENTER key.
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Page 37 7. Status display Runtimes and pause times, Table 2 of 4 Step Display Description View active lubrication time or pause time <Inputs> Lubtime Select the <Inputs> menu item using <arrow key down> Inputs Press the ENTER key. You will enter the Inputs sub-menu. Input 1 Input 2 Select <Input 1 (2 or 3 or 4)>...
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Page 38 7. Status display Runtimes and pause times, Table 3 of 4 Step Display Description Rotation monitoring by fill level sensors <Rotation> The inputs were already programmed (specified) for the selected main line (1 to 4) in the <Config> menu, <Settings>, <Line1>.
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Page 39 7. Status display Runtimes and pause times, Table 4 of 4 Step Display Description Monitor the pressure switch If the selected input is configured as an analog pressure switch, the value read will be shown in analog format. Analogue Press <arrow key left>...
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Page 40 7. Status display Read error times of lubrication process Read fault times Errors Step Display Description IO State Errors encountered Errors Select the Errors menu item using <arrow key The control unit is capable of detecting various IO State down>...
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Page 41 7. Status display IO State - Read electrical states of inputs and outputs Electrical state of inputs and outputs Errors Step Display Description IO State States of inputs and outputs Errors Select the IO State menu item using <arrow key IO State down>...
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Page 42 7. Status display IO Conn. - read connection states of inputs and outputs Electrical state of inputs and outputs Errors Step Display Description IO Conn. IO State Connect inputs and outputs Temp Errors Select the IO Conn. menu item using <arrow key down>...
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You will enter the selected menu for the ambi- IO Conn. perature (LC502 board). If the temperature is ent temperature on the control unit. Temp too high or too low, all lubrication processes...
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Page 44 8. Basic settings 8. Basic settings Basic initialization of control unit Restoring default factory settings Basic initialization Step Display Description Basic initialization The basic initialization menu is used to restore the default factory settings. System Select <Default> from the main configuration menu Settings Press the ENTER key to confirm the selection Inputs...
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Page 45 8. Basic settings Control unit reset function Reset to original basic settings Control unit reset function Step Display Description Basic initialization System Select <Reset> from the main configuration menu Press the ENTER key to confirm the selection. Settings Select <Cancel>...
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Page 46 8. Basic settings Reset the user password The user password is factory pre-set to “0” digits. Only numerals between 0 and 9 are permitted. Password change Step Display Description Basic initialization System Select the <New Pwd> menu item using <arrow key down>. Settings Press the ENTER key.
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Page 49 9. Control ports 9.1.3 KFGL pump for vehicle lubrication, 12 VDC, 24 VDC KFGL pump for vehicle lubrication, 12 VDC, 24 VDC Power supply Pin 1: OV (-) Pin 2: 12/24 VDC (+) Error output (Fault) Pin 3: Fault notification (-) Pin 4: Fault notification (+) Input 3 (In 3) Pin 5: External DK (-)
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Page 50 9. Control ports 9.1.4 KFGL pump for industrial applications or with grease follower plate, 230 VAC Industrial applications or with grease follower plate, 230 VAC Input 1 (In 1) Pin 1: Pressure switch 1 (+) Pin 4: Pressure switch 1 (-) Output 1 (Out 1) Pin 2: Not programmed (+) Pin 3: Not programmed (-)
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10.1 Operational malfunctions 10.4 Delete error notiication 10.2 System errors Select the error display menu. All error notiications can be acknowledged The LC502 control unit is capable of detecting and cleared using the key. This restarts Step Display various system errors. The control unit acti- the lubrication process on all lines.
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Page 52 10. Operational and pump faults 10.5 Error types Depending on the severity of the error, the control unit issues either a warning or a mal- function notiication - see following table. Error types Error type Definition Display Example of error Response by control unit Malfunction An error has occurred that affects No pressure buildup...
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Page 53 10. Operational and pump faults 10.6 Error notiication Errors IO State Displayed error notifications Error notification Category Possible cause Rectification Current error Malfunction The measured motor current has gone below the • Remove agitator jamming limit. • Check lubricant delivery The fill level sensor of the agitator (W1) does •...
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Page 54 10. Operational and pump faults Displayed error notifications Error notification Category Possible cause Rectification Input error Malfunction Different signal sources can be connected to • Inspect electrical lines and connections of the affected input and a single input. Errors that are detected on an replace if necessary input can therefore have various causes.
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Konfig Configuration menu Status Status Device status menu Service Service Menu reserved for SKF, used for locking important settings Serial Serie Nr Menu selection for the serial number Firmware Firmware Menu selection for identifying the program on the control unit...
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Page 56 11. LC502 menu display Menu displays, Table 2 of 6 English Deutsch Description Password Passwort Password entry System System Menu selection for viewing/editing the mode of operation Settings Einstel. Menu selection for configuring parameters Inputs Eingänge Menu selection for configuring inputs Outputs Ausgänge...
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Page 57 11. LC502 menu display Menu displays, Table 3 of 6 English Deutsch Description ExtStop Stopeing Error input (function selection and assignment for the main line that will be stopped in the event of an error) MCNumber MCZyklen MC (machine contact input) (function selection and assignment for the main line that will be controlled)
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Page 58 11. LC502 menu display Menu displays, Table 4 of 6 English Deutsch Description MCCount1 to MCZähl. 1 bis MCZähl. 4 Selection of MC control input for the affected line MCCount4 Mon+Stop Mon+Stop Runtime limitation based on agitator rotations, with monitoring by cycle switch. An error is reported when the pre-set value is reached and cycles are missing.
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Page 59 11. LC502 menu display Menu displays, Table 5 of 6 English Deutsch Description ExternDK ExternDK Function of an input as DK input ExtDelay Pausever Function of an input as pause time extension input ExtStop Stopeing Function of an input as stopper input...
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Page 60 11. LC502 menu display Menu displays, Table 6 of 6 English Deutsch Description IO State IO Zust. Menu selection for displaying the state of inputs and outputs IO Conn. IO Verb. Menu selection for displaying the connection state of inputs and outputs Temp.
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Page 61 12. Technical data for LC502 control unit 12. Technical data for LC502 control unit 12.1 Basic settings of LC 502 Pause time: 00008h, 00m, 00s corresponds to a pause time of 8 hours Pump runtime: 00001h, 00m, 00s...
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Not all lubricants can be fed using centralized lubrica- tion systems. SKF can, on request, inspect the suitability of the lubricants selected by the user for pumping in centralized lubrication systems. Lubrication systems and their compo-...
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