... VDCINDICATORS & CONTROL PANELTypeLCD PanelControl PanelPush Buttons (Open / Close, Audible Alarm Cancellation)Measuring and Alarms % Load, Input Voltage Exist, Output Voltage Exist, Bypass ... ALARMSAlarm Type and AlarmsBuzzer, it can be switched off by audible alarm button.Battery Mode, Battery Low, UPS fault, Overload, Short ...