Hi friendly people of the forum,
Here is my situation. I have the mentioned inverter. I am trying to set a new setup for it. I have Inverter priority as output. I have been using it with Solar Only input, meaning, the battery will only be charged by the PV.
I want to change the settings to Solar Priority meaning that once my battery is drained to AON (Auxiliary module on), the inverter goes into bypass, with utility supplying the load while also charging the batter. There are two related settings MCC (Max charging current) and MUC (Max utility charging current) MCC is set to 50A in my case. The MUC default is 60A minimum is 2A. I tried to set it to the minimum (2A) so the utility only charges the battery with the minimum current, until solar is back and charges the battery properly along with utility until AOF (Auxiliary module OFF).
This way I can still utilize my system In case the utility goes down as I have the battery LVD (Low Voltage Disconnect) that is set to a lover value than AON.
I hope I could paint a good picture of what I am trying to achieve and the variables I'm using.
The issue arises when at nigh the system reaches AON. If my load is relatively high. the inverter throws a HOV (Hardware over voltage) error and faults out, not supplying load from either the utility either from battery. If this happens I need to restart the inverter (most likely in the middle of the night).
What is this HOV (Hardware Over Voltage) error? (There is nothing about it in the manual or online)
Is it related to my MCC value? (My suspicion is if I raise this to a higher value than my load, than the issue doesn't happen)
In case it is related, shouldn't the error be Hardware UNDER voltage instead of Hardware Over Voltage?
Any other thought suggestions observations are welcomed.
I am also attaching the related bits here from the manual that I was basing my settings on:
Manual link: https://www.epever.com/wp-content/uploads/2021/09/UPower-Hi-Manual-EN-V2.2.pdf
Here is my situation. I have the mentioned inverter. I am trying to set a new setup for it. I have Inverter priority as output. I have been using it with Solar Only input, meaning, the battery will only be charged by the PV.
I want to change the settings to Solar Priority meaning that once my battery is drained to AON (Auxiliary module on), the inverter goes into bypass, with utility supplying the load while also charging the batter. There are two related settings MCC (Max charging current) and MUC (Max utility charging current) MCC is set to 50A in my case. The MUC default is 60A minimum is 2A. I tried to set it to the minimum (2A) so the utility only charges the battery with the minimum current, until solar is back and charges the battery properly along with utility until AOF (Auxiliary module OFF).
This way I can still utilize my system In case the utility goes down as I have the battery LVD (Low Voltage Disconnect) that is set to a lover value than AON.
I hope I could paint a good picture of what I am trying to achieve and the variables I'm using.
The issue arises when at nigh the system reaches AON. If my load is relatively high. the inverter throws a HOV (Hardware over voltage) error and faults out, not supplying load from either the utility either from battery. If this happens I need to restart the inverter (most likely in the middle of the night).
What is this HOV (Hardware Over Voltage) error? (There is nothing about it in the manual or online)
Is it related to my MCC value? (My suspicion is if I raise this to a higher value than my load, than the issue doesn't happen)
In case it is related, shouldn't the error be Hardware UNDER voltage instead of Hardware Over Voltage?
Any other thought suggestions observations are welcomed.
I am also attaching the related bits here from the manual that I was basing my settings on:
Manual link: https://www.epever.com/wp-content/uploads/2021/09/UPower-Hi-Manual-EN-V2.2.pdf
