wheatman
New Member
- Joined
- Nov 22, 2022
- Messages
- 8
Hey guys!
I've assembled the following config for my neighbour:
2x Growatt SPF5000ES invertors connected in parallel
280Ah battery bank DIY (16x cells) with a 100A 48v OverkillSolar BMS
2 equal Arrays x 7pcs of 660w Canadian Solar in series, each array coming into each invertor separately (14pcs in total)
Equal cable length to the battery from both invertors
The settings are as follows:
Battery Type USE
CV 56.4
FLV 54.4
CO 42.8
The system is working fine, the invertors are in slave/master modes as it should be, but i keep randomly getting the 03 fault with a long continious beep from them from time to time, followed by the electricity going off. Usually it happens when there's a lot of sun, and especially when after some load - like, everything is working fine, I use a circular saw, and 10-15 mins AFTER this the invertors go fault mode. I assume there is some kind of miscommunication between the BMS and the invertors, but dont have enough experience to know where to start from.
Also, I use a similar setup at my home, but with one Growatt invertor, 4 panels the same kind and 2 of 280ah batteries with same BMS, and have never had this kind of problem. Will appreciate your input a lot, its a pain to manually restart the invertors each time after the fault Here are some pics of the neighbors setup as well:
I've assembled the following config for my neighbour:
2x Growatt SPF5000ES invertors connected in parallel
280Ah battery bank DIY (16x cells) with a 100A 48v OverkillSolar BMS
2 equal Arrays x 7pcs of 660w Canadian Solar in series, each array coming into each invertor separately (14pcs in total)
Equal cable length to the battery from both invertors
The settings are as follows:
Battery Type USE
CV 56.4
FLV 54.4
CO 42.8
The system is working fine, the invertors are in slave/master modes as it should be, but i keep randomly getting the 03 fault with a long continious beep from them from time to time, followed by the electricity going off. Usually it happens when there's a lot of sun, and especially when after some load - like, everything is working fine, I use a circular saw, and 10-15 mins AFTER this the invertors go fault mode. I assume there is some kind of miscommunication between the BMS and the invertors, but dont have enough experience to know where to start from.
Also, I use a similar setup at my home, but with one Growatt invertor, 4 panels the same kind and 2 of 280ah batteries with same BMS, and have never had this kind of problem. Will appreciate your input a lot, its a pain to manually restart the invertors each time after the fault Here are some pics of the neighbors setup as well:
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