Riyad179
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I think it's difficult to get p.v panels with higher voc than 52v , if you decide to have 4 panels ,then it's OK to be in the limits 150v-200v
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thank you Youda for your quick response, it's probably as you mentioned a hardware issue (BMS). I will try to contact dealer , it's a 3 months only passed since purchased. !!
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Riyad179 reacted to a post in a topic:
MPP Solar - Voltronic - Testing IGBT drivers - Coulomb method with 2 power supplies.
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Collection of DSP Axpert Firmware for VM III TWIN and VM IV TWIN
Is it still working ?@Youda Can you or some one else help me in getting the upgrade file of Pylontech UF5000 . I have an issue with the battery hoping the upgrade will solve it . Battery is giving alarm at startup (pressing the red switch) for few seconds with 3 of 5 of the lends is on .? then goes to totally shutdown . . Thank you in advance
Riyad179 reacted to a post in a topic:
Pylontech in Parallel with JK , not working as expected ? Less current draw on JK.
This issue could be due to opamp circuit reading the voltage of solar panels . Your inverter is reading above threshold limits which could be above 500v . If you are a technician you can follow the series resistors reading the pv voltage and check the +ve and -ve voltages applied to tl072 op-amp .For me I prefer to replace the whole set of capacitors around the regulator 7912 , as each time I face this fault and measure those capacitors they give lower uF value than real value even if not bulged.Good news,Is it possible to replace the fans with another of higher amper value in order to have more efficient cooling if the originals are 0.3 A newer are 0.6 A ?Don't worry at all , it's like if ur inverter is 5kw while ur consumption is 1 or 2 KW . The most important how will he arranged the 5.6kw panel array to fit on 2 mppt's of 8kw hyprid inverter .I got you , yes you are right . !! Thankyou .That would be at peak time only ,but not at all the day , in other words when panels are at maximum power only . Isn't it??Well , then it would be nice to try this solution .Thank you Coulomb for your explanation , some one advised me to install an mc4 diode in series with pv cables out of inverter to (block) this voltage coming out of inverter , would that solution be effective ?I think this actually happens in all inverters of 450_500V . , but not on 145v inverters !!