3. Overview3.3 Keypad3.1 Front Panel DisplayFigure 3.1 Front Panel Display3.2 LED Status Indicator LightsThere are three LED status indicator lights in the front panel of the inverter. Left LED:POWER LED (red) indicates the power status of the inverter. Middle LED: OPERATIONLED (green) indicates the operation status. Right LED: ALARM LED (yellow) indicatesthe alarm status. Please see Table 3.1 for detailsDescriptionThe inverter can detect DC powerNo DC power or low DC powerThe inverter is operating properly.The inverter has stopped to supply power.The inverter is initializing.Alarm or fault condition is detected.The inverter is operating properly.StatusONOFFONOFFOFFONFLASHINGLightPOWEROPERATIONALARM3.4 LCDThere are four keys in the front panel of the Inverter(from left to right):ESC, UP, DOWN and ENTER keys. The keypad is used for:Scrolling through the displayed options (the UP and DOWN keys);Access to modify the adjustable settings (the ESC and ENTER keys).3. OverviewThe two-line Liquid Crystal Display (LCD) is located at the front panel of the Inverter,which shows the following information:Inverter operation status and data;Service messages for operator;Alarm messages and fault indications.Table 3.1 Status Indicator Lights.7. .8.