April 23, 20197 yr Hi I have two axpert units in parallel, there is 3000w of solar connected to the first one. Will the units share the solar (if solar first is selected) example below: 1. Assuming a load of 2500 watts shared between the two inverters and actual solar production of 3000 (coming into one) 2. Is the load always split equally between the units is parallel ? 3. Is there a way to set the unit up so it uses a percentage of battery for self consumption and then keep some in reserve for load shedding. Thanks !!
April 23, 20197 yr 3 hours ago, Dean said: I have two axpert units in parallel, there is 3000w of solar connected to the first one. Will the units share the solar (if solar first is selected) example below: 1. Assuming a load of 2500 watts shared between the two inverters and actual solar production of 3000 (coming into one) Yes. PV power will get to the second inverter via the battery cables, but in this case won't actually go to the battery. 3 hours ago, Dean said: 2. Is the load always split equally between the units is parallel ? Yes, though it's a roughly equal split. There might be 10% or 20% difference with smaller loads. 3 hours ago, Dean said: 3. Is there a way to set the unit up so it uses a percentage of battery for self consumption and then keep some in reserve for load shedding. Yes, there is. Settings 12 and 13 determine when the inverter switches between line/bypass mode and battery mode, when there is AC-in power available. Choose a suitable battery voltage for these. Unfortunately, you are limited to whole volts, but usually you can get close to what you want. Even better, purchase ICC for Pi, and you can set it to a particular SOC, to a whole percent. This is much more accurate, repeatable, and easy to use. If you don't have a lithium battery that ICC can talk directly to (at present, I believe that's any Pylontech or any Blue Nova), then you'll need a BMV battery monitor as well. See the ICC web site.
April 23, 20197 yr Author Thanks, I have an ICC, so to confirm I can use a portion of the battery's for self consumption and then keep reserve for load shedding. How does program 12 differ from program 13 Thanks
April 24, 20197 yr 8 hours ago, Dean said: How does program 12 differ from program 13 Setting 12 is about when to go to line/bypass mode, 13 is about when to go back to battery mode. So the voltage in setting 13 will always be higher than the voltage in setting 12.
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