February 18, 20224 yr Hi all. I today commissioned a Luxpower 5KVA system. I did the install work during the week. Two strings of 6 JA 455W. Two 100AH Li Batteries and all looks and test perfect. Up to the point I power up the PV side. Without the Inverter I get 260V open circuit, this include loss due to the cable length and the combiner. But as soon as I turn the combiner switch on to the inverter it pulls the PV to 1,8V. Any ideas what to look for?
February 22, 20224 yr The polarity is incorrect on your pv cabling to the solar panels. When you connecting your pv cables to the panels you need to crimp the connector with the negative sign to the red cable and the connector with the positive sign to the black cable.
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