User manual

Page 69
EA Elektro-Automatik GmbH
Helmholtzstr. 31-37 • 41747 Viersen
Germany
Fon: +49 2162 / 3785-0
Fax: +49 2162 / 16230
www.elektroautomatik.de
[e-mail]
EL 9000 B HP Series
Uploading of a table from an USB stick must use text les in CSV format (.csv). Plausibility is
checked on loading (values not too high, number of values correct),and possible errors reported
in which case the table will not be loaded.
The 4096 values in the table are only checked for size and count. If all the values were to be
graphicallyplottedacurvewouldbecreatedwhichcouldincludesignicantstepchangesincur-
rent or voltage. That could lead to complications in the loading of the source if, e.g., the internal
voltage measurement in the electronic load swings slightly so that the load jumps backwards
and forwards between two values in the table, which, in the worst case, could be 0 A and the
maximum current.
3.10.12.1 Loading UI and IU tables from USB drive
The so-called UI / IU function generator requires to load tables from a com-
monFAT32formattedUSBdriveviathefrontsideUSBport.Thelesare
requiredtohaveacertainformatandtomeetfollowingspecications:
• Thelesnamesmust always begin withIUorUI (not case-sensitive),
depending on the target function you want to load the table to
• ThelemustbeatextleoftypeExcelCSV(semicolonasseparator)
and must only contain one column with exactly 4096 values without gaps
• Values with decimal places must use the comma as decimal separator
• None of values may exceed the related maximum value of the device. For example if you have a 80 V model
you are going to load the table for the UI function, it is assumed that all the values in the table are for voltage
and thus must not be bigger than 80 (the adjustment limits of the device are not in effect here)
• ThelesmustbestoredinsideafoldercalledHMI_FILESwithhastobeintherootoftheUSBdrive
Ifthelenaming,pathandlecontentspecicationsarenotmet,theleiseithernotrecognizedatallorrejected.
Soitis,forexample,impossibletoloadanUItable(lenamestartswithUI)fortheIUfunctionandviceversa.
TheUSBdrivemaycontainmultiplelesofwhichupto10arelistedasaselectionbeforeloading.
► How to load an UI or IU table from USB stick
1. Do not plug the USB drive yet or pull it out if already plugged.
2. Open the function selection menu of the function manager with MENU -> Function Generator -> XY Table
3. In the next scree select the desired function with either „UI Table“ or „IU Table“.
4. ConguretheglobalparametersforU,IandP,ifnecessary.
5. Tap touch area and plug the USB drive when requested, in order to select one out of X compatible
lesfromthedrive.Incasetheleisnotaccepted,thedevicewillreportanerrorinthedisplayandalsotell
what’swrongwiththele.
6. Oncetheleisaccepted,youwillberequestedtoremovetheUSBdrive.
7. Submit and load the function with to start and control it as with other function (also see „3.10.4.1.
Function selection and control“).