GE Multilin L30 Line Current Differential System 4-254 HUMAN INTERFACES 4.3 FACEPLATE INTERFACE44.3.8 CHANGING SETTINGSa) ENTERING NUMERICAL DATAEach numerical setting has its own minimum, maximum, and increment value associated with it. These parameters definewhat values are acceptable for a setting.Two methods of editing and storing a numerical setting value are available.• 0 to 9 and decimal point: The relay numeric keypad works the same as that of any electronic calculator. A number isentered one digit at a time. The leftmost digit is entered first and the rightmost digit is entered last. Pressing the MES-SAGE LEFT key or pressing the ESCAPE key, returns the original value to the display.• VALUE keys: The VALUE UP key increments the displayed value by the step value, up to the maximum value allowed.While at the maximum value, pressing the VALUE UP key again allows the setting selection to continue upward fromthe minimum value. The VALUE DOWN key decrements the displayed value by the step value, down to the minimumvalue. While at the minimum value, pressing the VALUE DOWN key again allows the setting selection to continuedownward from the maximum value.b) ENTERING ENUMERATION DATAEnumeration settings have data values which are part of a set, whose members are explicitly defined by a name. A set iscomprised of two or more members.Enumeration type values are changed using the VALUE keys. The VALUE UP key displays the next selection while theVALUE DOWN key displays the previous selection.c) ENTERING ALPHANUMERIC TEXTText settings have data values which are fixed in length, but user-defined in character. They can be upper case letters,lower case letters, numerals, and a selection of special characters.FLASH MESSAGETIME: 1.0 sFor example, select the SETTINGS PRODUCT SETUP DISPLAY PROPERTIES FLASHMESSAGE TIME setting.MINIMUM: 0.5MAXIMUM: 10.0Press the HELP key to view the minimum and maximum values. Press the HELP keyagain to view the next context sensitive help message.FLASH MESSAGETIME: 2.5 sAs an example, set the flash message time setting to 2.5 seconds. Press the appropriatenumeric keys in the sequence “2 . 5". The display message changes as the digits arebeing entered.NEW SETTINGHAS BEEN STOREDUntil ENTER is pressed, editing changes are not registered by the relay. Therefore, pressENTER to store the new value in memory. This flash message momentarily appears asconfirmation of the storing process. Numerical values which contain decimal places arerounded-off if more decimal place digits are entered than specified by the step value.ACCESS LEVEL:RestrictedFor example, the selections available for ACCESS LEVEL are "Restricted", "Command","Setting", and "Factory Service".ACCESS LEVEL:SettingIf the ACCESS LEVEL needs to be "Setting", press the VALUE keys until the proper selec-tion is displayed. Press HELP at any time for the context sensitive help messages.NEW SETTINGHAS BEEN STOREDChanges are not registered by the relay until the ENTER key is pressed. PressingENTER stores the new value in memory. This flash message momentarily appears asconfirmation of the storing process.
