August 27, 20233 yr Morning All I have just upgraded from 4 x Fivestar to 4 x Deye 5kw Inverters all in parallel Setup is working perfect except for the solar panel connections, I have moved the strings from the 4 x five stars to the Deye's and they wont pull a load strings are as follows per inverter 7 x 455w canada solar panels, string voltage 350v Plugged into the Fivestar 8kw charges batteries no issue pulling around 1.4kw at the moment, change to the deye inverter voltage showing same 350v but will only get to 9w basically not pulling from the panels Checked with another old axpert I have and they work perfect on that one too...... I am off grid no eskom Whats the issue?
August 28, 20233 yr On 2023/08/27 at 9:36 AM, offgrid africa said: Morning All I have just upgraded from 4 x Fivestar to 4 x Deye 5kw Inverters all in parallel Setup is working perfect except for the solar panel connections, I have moved the strings from the 4 x five stars to the Deye's and they wont pull a load strings are as follows per inverter 7 x 455w canada solar panels, string voltage 350v Plugged into the Fivestar 8kw charges batteries no issue pulling around 1.4kw at the moment, change to the deye inverter voltage showing same 350v but will only get to 9w basically not pulling from the panels Checked with another old axpert I have and they work perfect on that one too...... I am off grid no eskom Whats the issue? I would 1st connect only 1 inverter at a time to it's panels and to the battery with all other connection removed and see that each inverter will work with it's own panels. Then add one more at a time while going the paralleling route.
August 28, 20233 yr 3 hours ago, Scorp007 said: I would 1st connect only 1 inverter at a time to it's panels and to the battery with all other connection removed and see that each inverter will work with it's own panels. Then add one more at a time while going the paralleling route. This is a good troubleshooting mechanism - Also check your startup procedure - ensure the Normal light is on while running on batteries only THEN switch on DC
August 29, 20233 yr Author deye say they need a firmware upgrade they will start to work if i put 12 panels on a string at 480v but then it only pulls half the panel power around 2kw on a 4.5kw string If i remove just 1 panel in the string the draw drops to 9w tested on existing string and a new set of panels today
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