November 24, 20223 yr When power is lost . loadshedding, the inverter (8 kW Sunsink) shuts down, no battery change over to UPS function., Voltage ) , freq. O Fault alarm F56 undervoltage . Battery shows 100% . Batt : alpha esse 1okW. li . Can anyone advise , assist in resolving the issue ? Thank you .
November 24, 20223 yr 3 hours ago, H . Hall said: When power is lost . loadshedding, the inverter (8 kW Sunsink) shuts down, no battery change over to UPS function., Voltage ) , freq. O Fault alarm F56 undervoltage . Battery shows 100% . Batt : alpha esse 1okW. li . Can anyone advise , assist in resolving the issue ? Thank you . Does this happen everytime there is LS or only in certain instances, e.g. when a load is on the inverter? How arw the battery and inverter connected to each other. Can you share the LiBMS screen from the Inverter. Please also share the Battery setting screens (all 3 of them)
November 25, 20223 yr Just a heads up, I have been testing the SMILE5 batteries with Axpert inverters and I have been running into odd issues... Seems like the Alpha systems run a lot of their background features via BMS coms and getting them to work perfectly with other brand inverters can prove painful. Your best bet is going to be liaising with Alpha and Sunsync. Alpha should be able to advise on the needs of the battery and hopefully Sunsync will be able to make that work with one of their inverters... PS. Keep in mind that Alpha do not manufacture anything. Manufacture is handle by other companies and they just build the complete systems/integrations. They seem to be using some 5D chess stuff to make the system really cool, easy to maintain remotely and service free. However, all these fancy features makes connecting to other inverters a pain. On the Axpert they don't fully charge and turn off after a while, could probably fix it but its just annoying...
November 25, 20223 yr Well, Sunsynk does claim to support the Alpha Ess batteries: The problem the OP is having sounds like the BMS is disconnecting the output, presumably due to an overcurrent condition. I assume these batteries are 0.5C, so perhaps demand is more than ~5kW at that point or close enough that a fridge or similar starting will trip it.
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