... OutputOutput systemSingle phrase & earth groundOutput voltage230±20%(inverter output)Output frequency50±5Hz(line normal, according to line) 50Hz ... UPS status, load, temperature,O/P Voltage,Frequency, B/P Voltage,Frequency CommunicationsRS232,Intelligient Slot (Web power card, ... abnormal ,overload condition and inverter problemsProtectionAC input or output above or below the range of voltage Overload ...