Hi!
In few last weeks, there jumps up some problems in two of our installation.
Config:
1) 2phase - 2x Multi II 5000VA 48V, 9,6 kWh Lead-Carbon battery, 4,92 kWp, Smart Solar MPPT 150/85, Venus Gx
2) 3phase - 3x Multi II 3000AV 48V, 17,2 kWh Lead-Carbon battery, 7,2 kWp, Smart Solar MPPT 150/100, Venus Gx
these are not only installation with these batteries and we have no other problems, so I am certain, that the batteries parameters are set well.
there are 2 problems:
1) there are high jumps in SOC
2) once per 2-3 weeks the SOC stucks at some point and ESS stuck in float and system needs to be restarted to correct the SOC.
With our clients I have found out, that there is some weird behaviour, when the water pump or water level sensor (1) client doesn’t have water level sensor so it looks like, there is problem in water pump (230 V) which causing energy to returning to the system (it runs with the grid disconnecte). At the other client (2) I didn’t found problem in Water pump, but it looks like, the energy returns is caused by Water Level sensor.
Excuse my English please, I am better in reading then writing.
Thank You!
