OPERATIONEaton 9155 UPS (8–15 kVA) User's Guide 164201553 Rev G (www.eaton.com/powerquality)58Changing the LanguagePress and hold the first button on the left for approximately five seconds to select thelanguage menu. This action is possible from any LCD menu screen.Display FunctionsAs the default or after 15 minutes of inactivity, the LCD displays the selectable startupscreen. The default is the Eaton logo and can be changed to the Mimic screen in theUser Settings menu.The backlit LCD automatically dims after a long period of inactivity. Press any buttonto restore the screen.Use the two middle buttons ( and ) to scroll through the menu structure. Press thebutton to enter a submenu. Press the button to select an option. Press theESC button to cancel or return to the previous menu.The following table shows the basic menu structure.Table 8. Menu Map for Display FunctionsMain Menu Submenu Display Information or Menu FunctionUPS Status UPS off / System normal / UPS supporting load / UPS on battery / UPS on bypass / Active alarmlist / Battery statusEvent Log Displays up to 100 events and alarmsMeasurements Output L-N and L-L / Current / Frequency / PowerBattery Voltage / Current / RuntimeInput L-N and L-L / Current / FrequencyBypass L-N and L-L / FrequencyControl Go to Bypass Mode Transfers the UPS to internal Bypass modeWhen this command is active, the option changes to Go to Normal Mode.Start Battery Test Initiates a battery testDisplay Test Four different selectable tests for the front panel functions: the LEDs cycle through, the alarmbeep sounds, the backlight turns off and on, and the pixels scroll through to test the LCD.Settings User Settings See Table 9 for detail.Service Settings This screen is password-protected.Identification UPS Type / Part Number / Serial Number / Firmware / Display / CAN BridgeTurn UPS ON/OFF ON and OFF Options