I've search the forum but not been able to find anyone with a similar issue/solution.
At least times this year, a few minutes into my scheduled battery charging, I get high DC current alarm simultaneously with low battery alarm:
The whole of the previous year since from when the system was installed this has not happened.
The low battery alarm is very odd since every time this has happened the batteries had at least 50% charge and I have no idea why the high DC current alarm is happening. Can anyone shed any light on this?
When these alarms hit the inverters cut all power to AC OUT 1 which takes down the house. I would have thought it would just pass through the grid in this situation, maybe there is some configuration needed?
This has happened both before and after having PV installed.
My system:
- 2 x Multiplus 2 5kVA in parallel
- 6 x Pylontech US5000
- Grid tied
- All house loads connected to AC OUT 1
- Recently installed small 1.3kW pv array to MPPT 150/35
Thanks for any and all help.