Andre R Posted September 22 Share Posted September 22 (edited) Hi, I have added a second string of five (5) x375w Canadian Solar panels to my Luxpower SNA5000. These are facing the morning sun in an effort to boost solar PV production in the mornings as my first string of panels suffers from shading and only really come to their own from 11h30 onwards. However now when both isolators of PV1 and PV2 strings are switched on the inverter stops using the solar power of both strings. Why? But for instance when string 1 isolator only is on it uses the PV power from PV1 and; and when string 2 isolator only is on it then uses the PV from PV2 successfully. But when both is on it doesn't use the solar power from either PV1 or PV2. Do I need to change settings on the invertor via the LCD screen to "tell" the inverter that PV2 should be enabled? Ie to activate PV2.. Andre Edited September 22 by Andre R Quote Link to comment Share on other sites More sharing options...
Scorp007 Posted September 22 Share Posted September 22 1 hour ago, Andre R said: Hi, I have added a second string of five (5) x375w Canadian Solar panels to my Luxpower SNA5000. These are facing the morning sun in an effort to boost solar PV production in the mornings as my first string of panels suffers from shading and only really come to their own from 11h30 onwards. However now when both isolators of PV1 and PV2 strings are switched on the inverter stops using the solar power of both strings. Why? But for instance when string 1 isolator only is on it uses the PV power from PV1 and; and when string 2 isolator only is on it then uses the PV from PV2 successfully. But when both is on it doesn't use the solar power from either PV1 or PV2. Do I need to change settings on the invertor via the LCD screen to "tell" the inverter that PV2 should be enabled? Ie to activate PV2.. Andre Are both sets of panels 5 in series. Quote Link to comment Share on other sites More sharing options...
TaliaB Posted September 22 Share Posted September 22 (edited) 4 hours ago, Andre R said: However now when both isolators of PV1 and PV2 strings are switched on the inverter stops using the solar power of both strings. Why? How is the 2 strings connected to the inverter? String1 5S1P to mppt1? and String2 5S1P to mppt2? Edited September 22 by TaliaB Quote Link to comment Share on other sites More sharing options...
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