_____________________________________________________________________________________________Q3 ENERGIE Installation and operating instructions QX³ series 18/109Version 1.0, Stand 27.04.2015Installation and operating instructionsQX³ series3.3 Unit identificationEvery PV inverter has unambiguous device identification (serial number). Youshould make a note of this data before installation, so you have it to hand forordering spare parts or if you have any questions. The type plate is affixed on theright-hand side of the inverter.Have the serial number ready to hand if you contact the Customer Service with aquery.Type plate (example):3.4 Functional descriptionThe inverters of the product family QX³ are multi-string inverters.Depending on the model selected, the inverter has two or rather threeindependent inputs, each with its own MPP tracker (Maximum Power Point). Thisallows the operation of various sub-generators also with different configurations(string length, alignment, pitch) on one device. Even projects with partial shadingcan be realised efficiently.Thanks to its wide input voltage range and a high degree of flexibility in thedesign of the strings this series efficiently covers all generator power levels fromaround 5kW to 20 kW.In order to save assembly and installation times all output and communicationinterfaces are designed externally. The device does not need to be opened forassembly and connection.Communication lines, sensors as well as the functions of the feed-in managementare already integrated in the device. The device can be configured elegantly andquickly using the integrated Ethernet interface. This makes an already integratedand efficient system management possible.