LMGControl User manual
Contents
1. C Stop time E Cl Quration days hours mintes seconds v Duration Choca time courte Choose time source use LMG clock Set LMG time to PC time use LMG dock Cuse PE clock O use PC dock Set LMG time to PC time List of programmed triggers List of programmed triggers at time 06 11 07 1105 14 start recording at tine 06 11 07 11 05 14 start recording at time 06 1107 1124 shop recording fter timespan of 0 days 01 hours 42 minutes 12 seconds stop recording Figure 11 Time as event Figure 12 Duration of recording as event Program recording Program recording start stop ting measuring value triggers digital inputs triggers start stop time measuring value briggers digital inputs triggers Ciel OR m Diel AND De ine start reconding gt a 300 25 start recording A r List of prog ammed triggers at tine 05 11 07 01 05 14 shart recording at time 06 11 07 11 05 14 start recording after timespan of O days Ol hours 42 minutes 12 seconds stop recording after timespan of O days OL hours 42 minutes 12 seconds stop recording F value of P gt 300 2500000 start recording F value of P gt 300 250000 start recording F dyta inputs satisfy formula Di OR D AND Obed start reconding List of programmed buggers Figure 13 Measuring value Figure 14 Logical formula with threshold as event digital inputs as event 9 Export recorded data The recorded measuring values are saved in a binar2. Choose unblock for LMGControl to work Firewall settings for LMGControl must allow network access a feau vr p q an WWW LECOM COM CN 4 Connecting to an LM important For RS232 connection you must configure your LM s IF 1O settings to use ComA OEM Appl The first time you start LMGControl there are no previous connections to an LM available Therefore you start the interface search by clicking on the search for devices link or choose Device gt Search for devices from the application menu If your LM is correctly connected to the PC it can be selected from the list of found devices When the search is finished the first found device is automatically selected if you do not manually select another one If your LM is not found you might need to check the IF IO settings in the LM or the connecting cable cf section 11 1 on page 13 If you have several devices connected to your PC they Should be displayed one by one You can select one of them to work with LMGControl does not support using more than one LM at a time If you are successfully connected to a device LMGControl will automatically try to restore this connection every time it is started As long as you do not change the interface e g by plugging your USB adapter into a different port you will be able to start working as soon as the application has been started Of course you can disconnect from an LM to search for other connected devices on other interfac
3. Interval measurements These are only available when you are viewing values live in the plugins or performing a recording You can start stop and reset the interval measurements via the corresponding menu entries A a m a SS i faa C a a ae a amp WWW LECOM COM CN 6 View values live on your PC or prepare for recording To begin fetching values from the LM you first have to choose one of the plugins described in the following Each plugin provides a different view of measuring values Only plugins can retreive measuring values The same values can be Shown in several plugins simultaneously The number of plugins you can use is only limited by the PC s performance The maximum number of measuring values that can be fetched depends on the speed of your PC as well as on the bandwidth of the interface and its transfer rate e g selected baudrate of the RS232 interface 6 1 Starting plugins and viewing measuring values Plugins can be started by clicking on their icons in the main window cf figure 2 or selecting a plugin from the Start plugin menu As soon as a plugin is open LMGControl switches into interactive mode where no configuration of the LM is possible To add measuring values to a plugin either use the plugin s menu File gt Request value or click on the add FA LMGControl 1 05 no project File Device Recording Plugins Betis Options LMG Configuration Plugin EER Harmoni
4. The main problem was the accuracy of the generators which was not sufficient for this measurement To eliminate this problem the signal was measured in two different ways First we measured It by reading the value in normal measuring mode This was the reference value and its uncertainty is according to the standard specifications of the instrument Second we transferred the sample values using LMGControl version 1 13 and calculated the harmonics The value of the applied harmonic was compared to the reference value This test was repeated in different ranges resulting in different range usages This should simulate the effect that typically the harmonics are very small compared to the fundamental and its range usage respectively The results are summarized in the following tables 10 usage of range no filter Harmoni 10 usage of range no filter 16 6Hz 19 E C 3 wr F feau a T WWW LECOM COM CN Results Notably the usage of a range has very small influence on the uncertainty as well as the filters The frequency dependent errors are quite small Therefore the influence of the computation on the final result is negligible compared to the uncertainty of the instrument Necessary equipment for this application Following you find the necessary equipment in minimum configuration for this application Further options and equipment may be necessary to meet the requirements for a concrete application Measu
5. again E Select values for plugin Table 1001 Phase angle behweene current and voltage Average active Reactive Power Supply system power Active serial resistance Sine of queue 9 96 6 valuas 192 bits 6 2 Table plugin The Table plugin allows to view a number of measuring values in tabular form The values are arranged in columns in the order in which they were added By default the table scrolls when new values are added after a measuring cycle This can be changed via View gt Follow values in the menu or with the blue arrow icon in the toolbar Fj Table ID 1002 File view O 5P FETT CUR Rent PPEsk FETCH CUR Rents IRECHFY HRET On CUR Rents TRMS FETCH CUR Rent RUSed FETA POWer PHASS CFETOR Power AAC CTive ETC POWer REA Jive HETO SSS PETOA RESE ASR LEcoM Figure 3 Adding and removing measuring values of plugin Ek Pee e ee a 6 3 Display plugin The Display plugin shows the current values of the selected measuring values like the display of the LM The measuring values can be formatted with different font faces sizes and colors Additionally a background color for the window can be selected The formatting is controlled via a context menu for each displayed measuring value You can open the context menu by right clicking on a measuring value 217 008 217 029 217 049 217 070 217 022 217 193 217 347 217 458 217 462 217 432 217 454 217 445 2lf 3f lf 413 217 402 2
6. on your PC and load it to your LM later edit the LM script display the measuring values live in different views and record and export them for later analysis LMGControl can be used with the LECOM power meters LM95 LM450 and LM500 LMGControl consists of the main application which controls a collection of plugin applications The main application fetches the measuring values stores them and exports them The plugins only view measuring values received by the main application Therefore you can close plugins while recording or open new ones to view the same measuring values differently This modular design enhances stability performance extensibility When a plugin is not responding it is suspended by the main application while the rest of the plugins and the main application continue working On modern multi core processors the main application runs on one processor core and the plugins can use the remaining ones to fully utilize your PC s capabilities More plugins for viewing and analysis are developed to extend the abilities of the software 2 Requirements LMGControl is available for the following operating systems Windows 2000 Windows XP Windows Vista for Linux Debian 4 0 please contact LECOM For the reliable transfer of measuring values we recommend a CPU with 2GHz or more and at least 512MB RAM for Windows 2000 XP or 1GB RAM for Windows Vista LMGControl requires approximately 20 MB of free hard disk spac
7. options key to LMG After the successful transfer of the key the new options will be unlocked 13 Problems 13 1 LM is not automatically connected Ensure that the connecting cable between PC and LM is plugged in correctly LMGControl supports only COM ports 1 through 9 You can re assign the port number in Windows device manager If you are using a USB adapter USB to RS232 serial or USB GPIB interface try plugging it out and in again Check if the IF I1O settings in your LM are set to either ComA OEM Appl or GPIB especially it must not say Not connected Wait until search is finished If the LM was not found try searching a second time USB serial adapters with certain chipsets do not work with multi core processors In this case you have to use another interface 17 feau rr a WWW LECOM COM CN 13 2 Plugins show error Cannot connect to LMGControl You must configure your firewall to allow PC internal network access for LMGControl See chapter 3 on page 3 for details 13 3 Recording aborts after some time The transfer of data from LM to PC requires real time processing For stable long term recording not to loose any data the PC should have enough resources available Especially the following items are important The energy saving options must be disabled or else your PC will go into energy saving mode after you are away for some time Disable your screensaver too be
8. 17 412 217 440 217 467 217 487 0 13296 0 13316 0 13262 0 13277 0 13204 0 1333 0 13447 0 13275 0 13222 0 13222 0 13271 0 13245 0 13226 0 13236 0 13253 0 13261 0 13262 0 13522 16 6591 16 6717 16 6121 16 6397 16 5300 16 8459 16 6977 16 6523 16 5611 16 5907 16 6565 16 6162 16 5661 16 6049 16 6287 16 6377 16 6692 16 7247 16 6299 0 57732 0 57657 0 57713 0 57736 0 57665 0 57751 0 57014 0 57664 0 57666 0 57709 0 57718 0 57693 0 57623 0 57704 0 57713 0 5770 O 57717 Dare 0 57709 Figure 4 Table plugin 24 73003 54 76912 54 75133 54 73431 34 77081 34 72452 34 07989 54 77169 54 70392 54 75366 D47472 34 Gpl 54 61450 54 75772 54 75117 4 O04 54 74809 54 74099 54 75393 0 00000 0 00000 0 00000 0 00000 0 00000 0 00000 0 00000 0 00000 0 00000 0 00000 0 00000 0 000000 0 00000 0 00000 0 000000 0 00000 0 00000 0 00000 WWW LECOM COM CN ae Display ID 1 Seles File View Qr UTRMS V 217 784V ITRMS A 0 13468A P W 16 6582W PF 0 56 95 PHI 55 39260 Q var 24 1408var 5 VA 29 3305V4 Figure 5 Display plugin 6 4 Plot plugin The Plot plugin can show a single measuring value s plot over time You can use the magnifying glass icon in the toolbar to zoom into the plot If you want to see the complete plot double click in the window or use the Fit graph to window button in the toolbar to a
9. 5 5 2 Save and load configurations 5 5 3 Enter and edit scripts 5 5 4 Create a problem report 5 5 5 Show hardware and software options 5 5 6 Enter a new options key 5 5 7 Reset the LM completely 6 5 8 Energy measurement and other interval measurements 6 6 View values live on your PC or prepare for recording 7 6 1 Starting plugins and viewing measuring values 7 6 2 Table plugin 8 6 3 Display plugin 8 6 4 Plot plugin 9 6 5 Harmonics plugin 9 6 6 LM Configuration plugin 10 6 7 M n Motor torque and speed determination without measuring shaft 11 7 Measuring projects 11 8 Recording mode 12 8 1 Programming events 12 9 Export recorded data 13 10 Waveform analysis Analysis of sampling values 15 10 1 General information 15 10 2 Harmonic analysis and frequency analysis up to 1MHz 15 10 3 Recording of transient events 16 11 Recommendations for measurements 17 12 HowTos 17 12 1 Upgrade the options of your LM 17 13 Problems 17 11 1 LM is not automatically connected 17 11 2 Plugins show error Cannot connect to LMGControl 18 11 3 Recording aborts after some time 18 A Estimation of uncertainty for measuring high frequency harmonics like in avionic applications 19 a feau Pr p q an WWW LECOM COM CN 1 Overview LMGControl allows you to control your LM power meter conveniently from your PC and transfer measuring values for real time viewing and recording You can configure the power meter remotely save the current configuration
10. 99 Add gt gt Huams 0 99 Remigii oc Remove al Filename C Documents and Settings gm My Documentsitesk ler Start bime of recorded values 30 10 07 16 26 14 Bnd time of recorded values 30 10 07 16 26 51 Export from time 10 30 2007 6 26 14 073 2 Export to time 10 30 2007 16 26 51 083 2 Coy separator Decimal separator v Write device info to File F Write header names to file Cspt at number of lines Llapit at filesize of Figure 15 Export options 14 sa A me amp am an H E E C EWE ap Ge w i p VU WWW LECOM COM CN 10 Wave form analysis Analysis of sampling values LMGControl can be extended for the analysis of the LM s sampling values with the module Waveform Analysis option LMG SUBSCRIPTNBCONTROL SUBSCRIPTNB W A which is available separately This option provides several recording and analysis options Harmonic or frequency analysis is possible up to 1 MHz with LM500 exceeding the limits of the internal harmonic analysis of the LM Transient events which are detected by the LM can be transferred and collected over longer periods of time for later analysis 10 1 General information The waveform analysis can be found in LMGControl s toolbar Sampling values The menu can only be used when no plugin has been opened To keep the transfer duration short only those values from the u i and p channels are transferred whic
11. The configuration is downloaded and stored when you select Device gt Save device configuration to file from the menu The configuration can then be transferred back to the LM via the menu item Device gt Load device configuration from file 5 3 Enter and edit scripts LM power meters can be extended with a scripting language allowing the users to compute new values from the measuring values inside the LM These computed values can be displayed in the LM s user defined menu and transferred to the PC e g to LMGControl LMGControl contains a comfortable editor for the LM scripting language which can be started via Device gt Edit user defined script in the LM This editor includes features like syntax highlighting of the scripting language keywords tool tips to display possible parameters and a syntax testing which places the cursor on the position of an error in your script More help about the editor and the scripting language is available in the editor itself in the Help menu 5 4 Create a problem report If you have questions about the usage of the LM and want to contact the LECOM Support it is very helpful if you can provide a problem report The menu option Device gt Create problem report allows you to enter some data about the set up of your measurement and then automatically reads important configuration settings and measuring values from the LM This information is written to a PDF document which you can e mail to LECOM to help our s
12. a mt LEcoM WWW LECOM COM CN LMGControl FJ LEGControl 1 17 no project File Device Recording Plugins Start plugin Options QO 4 A Quit New Open Save hp 1 LMG500 SN 02930810 Firmware 4 076 COMB 38400 baud Collapse plugin panel 7 connect LMG Configuration Plugin This plugin can be used to configure the LMG remotely Harmonics Plugin Shows the spectrum of up to 100 harmonics Use this plugin to show a graph of the measured values A dn r Ta hy i I Plot Plugin 4 i T Wy T l A a i M VEN AN ra i search for devices show search results Display Plugin This plugin shows the values of the current cycle Itrms 91 070 mA Uirms 244 618 V 2 952 W 22 081 var 22 277 VA 0 13252 i M n Motor Plugin This plugin configures the torque and speed determination with the LMG Table Plugin Le This plugin can be used to view data in a tabular grid OR BREE 3 ikid 41 6657 305 CO0E S m6115 41 0465 SM POVE 3 Falta 41 78 MC Se a 217 912 41 304 MC 2ESE 3 217 64 41 1106 MB 1922 5 717 34 41 0425 LEcoM config mode Show log messages Visualization logging and analysis User manual V1 17 2008 11 28 10 03 20 software a feau vt d an WWW LECOM COM CN Contents 1 Overview 2 2 Requirements 2 3 Installation 3 4 Connecting to an LM 4 5 LM configuration 5 5 1 Remote configuration
13. ate Therefore a rate you input is marked in yellow at first and by pressing the enter key on your keyboard it is sent to the LM Then the next possible recording rate is set and displayed in the input field instead Additionally you can limit the values to be transferred In the dialog you see the number of values and time in seconds before and after the transient event which will be recorded by the LM By entering your required interval the transfer duration for a transient is reduced An approximation of the transfer time is shown as text below the input fields During transfer over a transient the search is stopped and further events which occur during this time are not detected and recorded by the LM Select sampling values to transfer Spectrum Transient recording rate 99378 86 samples per second _ _ _ _ Time before event 0 622496432 s Time after event 0 622496432 s Samples before event 61863 Samples after event 61863 transfer of values requires ca 00m 47s Figure 18 Recording of tra nsients start search For transient events abort 16 a feau Pr p q an WWW LECOM COM CN 11 Recommendations for measurements In general auto range should not be used for recordings also cf the notes on auto range in the manual of your LM When the measuring range changes which can occur multiple times in a row in case of high signal peaks the instrument requires up to
14. cause it could disturb the data transfer The background checking of your virus scanner can slow down the writing to hard disc too If you are recording directly to a network drive it is possible that the network speed is not sufficient 18 2 a m E SS E C I EWE i w u EVE WWW LECOM COM CN A Estimation of uncertainty for measuring high frequency harmonics like in avionic applications Some applications require more than the 100 harmonics supplied directly by the measuring instruments LM95 LM450 or LM500 For example there are measurements according to the AIRBUS standards ABD0100 part 1 chapter 8 or according to EUROCAE ED 14D In these cases the harmonics are calculated using speed optimized algorithms with externa software like LMGControl using the sample values of the instrument as calculation base For these standards it is also important to know the uncertainty of the measuring equipment including the evaluation software which is part of the measuring chain For the purpose of estimating the uncertainties of this calculation method we generated two voltages using two coupled arbitrary waveform generators One generator was used for a 416 6Hz fundamental which we applied to the voltage channel This signal was used for the synchronization of the instrument With the second generator we produced several harmonics one at a time always same amplitude which we applied to the shunt input of the current channel
15. corded like other script variables Further information is available in a separate manual for this module it can be found in the Windows start menu under LMGControl E Motor ID 1001 File Device Help Ome 2 Motor specifications from type plate Nominal output power SS W Nominal speed SSS ifmin Nominal Frequency lc Nominal voltage line to line OO y Nominal current SSS A Nominal powerfactor SSS Additional specifications Stator copper resistance line to line Ohm Number of poles Torque adjustment value Figure 9 Mn Motor Modul 7 Measuring projects When you have started and positioned some plugins on the screen and added measuring values to the plugins for a specific measuring task you do not want to repeat that every time you are performing this measurement Therefore you can save all this as a measuring project In the main window you find the options to create a new project save the current project and open a saved project These options are available in the menu File and as icons in the toolbar The following items are saved in a project the connection to the LM the configuration of the LM the plugins you have started position and size of the plugins windows and the main application window measuring values for each plugin Programmed events for event triggered recording Before you load a project make sure that the LM is connected to the PC and ready so that the connection with LMGControl ca
16. cs Plugin Plot Plugin Table Plugin 3 Firmware 4 074 COM4 115200 baud P LMG Configuration Plugin 107 Display Plugin am ar This plugin can be used to le aE This plugin shows the values FEH configure the LMG remotely P 2 952 H of the current cycle sanl 22 081 var weal 22 277 VA 0 13252 i Plot Plugin Harmonics Plugin Use this plugin to show a Shows the spectrum of up to lA h graph of the measured values i ihi i mm e im Table Plugin This plugin can be used to view data in a tabular grid grees rr O E l pu Wh 03 03 2008 12 04 56 Figure 2 Plugins can be started via the main menu or their icons symbol in its toolbar Then a dialog appears which lets you add and remove measuring values cf figure 3 The dialog contains a short description for every value If you are looking for a measuring value you can use the search tab to enter a term to look for in the description or the value names On the right side the dialog shows the list of currently retrieved values and lets you remove them from this plugin Finally when you press then start button in the toolbar of the main application the measuring values are retrieved from the LM The main application is minimized to give more screen space to the plugins While you are retrieving values you can still open more plugins and add measuring values to them As soon as you add a new value the plugin is restarted and begins viewing
17. d to a second file which has the same name you have given but with the extension Ich When the calculation is done this file is loaded displayed automatically 15 Select sampling values to transfer selici sampling values fo lranster Spectrum Transient Hamor anobysis Frequency andyss fundamental frequency F ato channel 1 49 9520 v uptothe 40 th harmonic number of rterharmonics 0 Additional options Akiona opia f use no fiter causes ahasing effects Tepe no fiter caue allacing effects aways record with marenm recording rate even not required shares record vith mascmum reconding rabe even iF not required stant recording abort start recording abat Figure 16 Harmonic analysis Figure 17 Frequency analysis 10 3 Recording of transient events LMs with hardware option L95 05 L45 O05 or L50 05 can search the measured sample values for transient events record a detected event and keep it for viewing and transfer LMGControl provides the possibility to save not only a single transient event but to continually search for transients and record them to files on your PC The configuration of the transient mode can be accomplished via the LM Configuration Modul cf page 10 In the transient tab of the sampling values menu cf figure 18 you can change the recording rate for the sample values Please note that the LM does not support every recording r
18. e For the recordings we highly recommend to use the NTFS file system The interface between LM and PC can be any of the following RS232 serial interface EEE488 GPIB interface USB to RS232 adapter cf 11 1 on page 13 USB interface of the LM500 Ethernet adapter Z318 LEcoM WWW N LECOM COM C COM CN 3 Installation LMGControl is distributed as a single setup executable which contains all required files Just click on the setup executable and follow the instructions on the screen Afterwards a shortcut on the desktop and an entry in the start menu are available to start LMGControl I mportant The first time you start LMGControl your firewall may ask you if it should be blocked from accessing the network Do not block network access for LMGControl LMGControl uses a PC internal network to communication between plugins and main application and will not work otherwise When the firewall question pops up choose Unblock cf figure 1 If you are using the standard Windows firewall you can unblock LMGControl by opening the Windows Firewall which can be found in the Control Panel Select the tab Exceptions and make sure the box in front of the application name LMGControl visualization logging and analysis software is checked cf figure 1 f Control Panel yi Add or a Remov P IOT ao Ww v Gereesl Exceptore Advanced ens i Q Forks G a ewal is blocking incoming ne
19. es Just select Device gt Disconnect from the application s main menu The device connection is saved with your project too cf section 7 When you load a project the connection will be restored if the device is available Therefore you can have projects using different LMs 4 feau Pr p q a WWW LECOM COM CN 5 LM configuration When LMGControl is connected to your LM it first goes into configuration mode In this mode you can configure your LM using every option available in the Device menu 5 1 Remote configuration While you are using LMGControl your LM is in remote mode Therefore you cannot use the instrument s controls to configure it directly A better alternative is to configure the LM directly from your PC using the menu option Device gt Configure The remote setup dialog appears which replicates the LM s menu screens for configuration When you enter a new value into one of the fields it is marked in yellow signifying that the change has not yet been sent to the LM This is only done when you press the return enter key on your keyboard Otherwise you can still decide to discard this change by closing the dialog After confirming a change the dialog reloads from the LM because some configuration options cause changes in the available configuration options 5 2 Save and load configurations Once you have configured your LM as needed for your project you can save the configuration to a file on your PC
20. h you selected The value list is on the right side of the input dialog The left list contains all available channels and the right list displays the selected ones By double clicking on an entry you can add a value or remove it respectively 10 2 Harmonic analysis and frequency analysis up to 1MHz Depending on your application it is easier to view the spectral analysis of the Sampling values either as harmonic analysis or as frequency analysis LMGControl provides both possibilities to specify the required parameters With the harmonic analysis you can either synchronize the fundamental frequency to any channel of the LM or set a fixed frequency for the analysis Based on this fundamental frequency you can then set the number of harmonics and inter harmonics which should be calculated With the frequency analysis you define a range of frequencies you want to analyze The provided step size between the analyzed frequencies is used as the fundamental frequency If you click the button Start recording you will be asked for a file name The file containing only the sampling values of the device will get the extension Ics The moment you click on Save LMGControl starts to record the values For this purpose is clears the LM s sample value memory and then waits for enough Sample values to be recorded Afterwards the sampling values are transferred and the harmonics are computed with an FFT algorithm cf chapter A on page 19 These are save
21. n be restored and the measuring values be added to the plugins 11 a feau vt p q an WWW LECOM COM CN 8 Recording mode When you have selected the measuring values in the plugins you can then record them to hard disc LMGControl provides three different types of recordings Normal recording start immediately record values continuously Step recording start immediately but only record values of single time steps when a button Is clicked Event based recording program events which trigger start and stop of the recording Each of these recording types can be started with its button in the toolbar or via the entry in the Recording menu If you have chosen event based recording you can then program the events For a detailed description refer to chapter 8 1 on page 10 Otherwise the recording dialog is displayed immediately listing the measuring values to be recorded and allowing you to enter a comment to describe the measurement cf figure 9 which will be saved in the recording file Confirm it with OK and next input a filename for the recording As soon as you click on Save the recording is started In the case of the step recording the values are recorded only when you click on the Step record button in the toolbar Each recorded value is displayed in the plugins immediately Once a recording has been Started LMGControl changes into recording mode In recording mode you can neither configure the LM nor add new measuri
22. ng values to the plugins besides the ones you are recording at the time but it is still possible to start more plugins to view the recorded values Start recording mode Request name Number of values DATE_M5 TIME _MS UTRMS Figure 10 Recording dialog 8 1 Programming events The following events can be used to control a recording Time You define a start time and a stop time for the recording using either PC or LM as time source cf figure 11 Duration As an alternative to defining a stop time you can also specify a duration for the recording cf figure 12 measuring values You can define threshold values to be compared with the measuring values which trigger an event when they are exceeded cf figure 13 Digital inputs The states of the digital inputs can be combined with AND and OR to a logical formula which triggers an event when it equals TRUE cf figure 8 1 A recording can only be started and stopped once Even if you have programmed several start events only the first event to occur triggers the beginning After the recording has been stopped by a stop event it will not be resumed by another start event 12 Program recording Program recording start stop time measuring value triggers digihal inputs triggers Rartishop time measuring value triggers digtal inputs triggers fi Start time Lif 6 2007 10 05 14 S M Start time 11 6 2007 10 05 14 gt fe Stop time jij ef20o7 o 10 Bbi4
23. nics of a channel you will get an additional choice dialog with the option to specify a range of harmonics and limiting the export to even or odd harmonics Also you can choose a time span from the recording to export An accurate timestamp is attached to all recorded measuring values so that LMGControl can export the values between a start time and an end time which you can input Another option is to export not the values of every recorded cycle but only every second or third etc value This is useful if you need a table where the time span between two values is longer than the longest cycle time of the LM For the use with applications that do not support larger data sets you can split the exported file into several smaller files As a criterion for the splitting the maximum number of lines per file or a maximum file size in kilobyte can be chosen Important In some countries the comma is used as decimal separator Therefore it must not be used as a field separator in CSV files LMGControl by default uses a period as decimal separator If your other application does not work correctly with this setting you should change the CSV separator to semicolon and the decimal separator to comma and adapt the import settings of the application respectively Export Recorded values 302 Selected values 303 TIMESTAMP ms ooo TIMESTAMP ms ATE MS WEM addal gt gt TIME MS AML 0 99 HUAMI 0 99 HUAMZ 0 99 HAM 0 99 HUAMS 0
24. re displayed for these measuring values will not be correct The Configuration plugin cannot be used when a recording is in progress If you really need to change the settings of the LM during a recording e g change the cycle time or a Measuring range you can do this instead on the device itself if you have activated the local control in the main program in the menu Options gt Preferences in the tab Advanced activate the option enable local control of LMG Beware that changes during a recording Always induce the risk of inconsistent or undesired measured values For example it could be confusing if a part of the recording contains filtered values while the other part contains values recorded with a filter turned on Fj Konfiguration Measure Ranges Misc 10 Settings Globals Group Ewv AB Measuring Mode Normi Cycles 0 500 Average l Channel 1 4 His tats Wiring 4 0 Channels Aron Figure 8 LM Configuration Module 10 oe r P feau Pr WWW LECOM COM CN 6 7 M n Motor torque and speed determination without measuring shaft This plugin can only be used with LM450 and LM500 if the options linked values star to delta conversion option L45 06 resp L50 06 and option L45 016 resp L50 016 are enabled for your LM It provides an input form for the data of the motor to be measured After the input the LM computes script variables for motor torque and speed which can be retrieved and re
25. ring Instrument a LM95 option O1 restricted usage due to bandwidth or b LM450 restricted usage due to bandwidth or c LM500 recommended Software LMGControl with option LMG SUBSCRIPTNBCONTROL SUBSCRIPTNBWA waveform analysis 20
26. several seconds to settle During this time there are no sensible measuring values available Therefore no new values are computed or displayed In this case your recording can contain gaps of several seconds Further more it is necessary to know the used measuring range and its usage of range for the computation of the accuracy of the measurement As the measuring ranges can change in auto range their values URNG and IRNG for every recorded measuring channel must be requested and recorded too These values can be selected and added like any other measuring values Even with fixed measuring ranges it is recommended to record the usage of range or over range respectively These are the values OVRI for current channels and OVRU for voltage channels This allows to calculate afterwards if the measurement has been performed correctly and the measured values are plausible usage of range neither too small nor over 100 12 HowTos 12 1 Upgrade the options of your LM LMGControl provides a convenient way to upgrade the software options of your LM Select Device gt Show information about LMG from the main menu to view your current options At the very bottom of the dialog you can find the current options key Click on Copy options key to clipboard Then you can paste the key into an e mail in which you order new options from LECOM When you receive the new key you can input it in LMGControl and send it to the LM Device gt Send new
27. twork Connections except tor the Windows Security Alert Folder Options Ra ogam retar telected below Adding exceplor akows tome programs io man better but might rcrease you security risk gt To help protect your computer Windows Firewall has blocked we 2 p h I some features of this program 3 wo Phor i pat Progam and Seervaces work Power Optio Name C Fie and Printer Sharing A LMG Corto Vieualkzation aching and enchysis poftrrare C Remote Assntance O Remote Desktop OUFE Framervork H Commections Do you want to keep blocking this program LE Securty Sounds end Certer Audio Devices Windows Frewal Name LMGControl Visualization archiving and analysis soft Publisher Unknown pJ My Documents n e ae L My Recent Documents gt v Oy My Pictures Ws Sy My Music Sg 3 My Computer Windows Meda Player Keep Blocking Unblock Ask Me Later Windows Firewall has blocked this program from accepting connections from the Internet or a network If you recognize the pepun or trust the publisher you can unblock it When should unblock a program ELAN E E E _Deme E Cortrol Pare Display a notification when Windows Firewall blocks a program 3 Windows Messenger deh aati What are the nuke of alioweng axcaption Cropper gp Printers ond Faxes ra Cancel SD 5 inian Figure 1 Windows firewall question about LMGControl s network access
28. upport find a solution for you faster 5 5 Show hardware and software options You can display information about your LM including the hardware equipment and software options as well as connected clamps This information is available via the menu item Device gt Show information about LM or by clicking on the LM icon in the main window 5 6 Enter a new options key LM power meters can be upgraded to new options with an activation key These can be input by using the wheel on the LM to select the letters A more comfortable alternative is to use LMGControl and choose Device gt Send a new options key to the LM from the menu If you want to upgrade your LM with a new options key please read the detailed description on this topic which can be found in section 10 1 on page 13 oe w LF feau vt i WWW LECOM COM CN 5 7 Reset the LM completely If you want to reset your LM to the factory default settings select Device gt Reset the LM from the main menu Beware that every script formula and user defined menu in the LM is deleted While the script is saved with the configuration on your PC the user defined menus can only be saved to the floppy disk drive of your LM or a plugged in USB stick Please refer to the manual of your LM for more information on this topic 5 8 Energy measurement and other interval measurements To control the integration of the active energy or other integration values there are three menu entries in Device gt
29. uto scale both the x and y axes More options are available in a context menu right click on the plot to view it You can save the plot as an image to use it in your documents or print it This command is available in the menu via Extras gt Save plot as image file Fi Piot iD 1003 File View Or AQAA JO Plotting P W Plotted values 439 Figure 6 Plot plugin 6 5 Harmonics plugin The Harmonics plugin displays a bar plot of the selected harmonics Because of the high differences between the harmonics values a logarithmic scaling is used by default The Harmonics plugin is only available if the LM is configured in Harm or CEHarm mode 9 LEcoM WWW LECOM COM CN E Harmonics ID 1005 k aa Pahl Ei l 2 i ry 1 2 l F i g i i E l m r i 1 3 4 4 a 1 i an t l q F harmonics Figure 7 Harmonics plug 6 6 LM Configuration plugin The Configuration plugin allows a convenient remote configuration of the LM via your PC For this it needs exclusive access to the device so that every other plugin will be stopped and not receive any values until this plugin is closed If you change the measuring mode in the configuration plugin some previously selected measuring values will not be available any more and should be removed from all plugins Therefore answer the corresponding question of LMGControl with Yes or else the values which a
30. y format which cannot be read with a text editor or spreadsheet application This format is much more efficient requiring only about half the space compared to a text based format To view the recording you can use LMGControl The file type for recordings Icr is associated with LMGControl so that you can view it by double clicking on a recording file Another possibility is to export the data for further processing in other applications LMGControl supports the widely used csv format comma separated values which can be read by every spreadsheet application With the export option which is available in the menu as File gt Export recording when you are viewing a recording you can select only those values which you really need in another application This is especially important as typical I gt feau vt P i E C 3 wF F WWW LECOM COM CN Spreadsheet applications do not support large text csv files with more than 256 columns or 65535 rows The export dialog cf figure 9 lets you select the measuring values from the ones available in the viewed recording By default all values are selected for export You can change the list by clicking on a measuring value and one of the buttons add all add remove remove all The selected measuring values are exported as columns in the order in which they appear in the selection list It is possible to export a value multiple times by adding it more than once If you have recorded the harmo
Download Pdf Manuals
Related Search