doityourself2021
New Member
- Joined
- Oct 19, 2021
- Messages
- 11
I have a SPF 6000T- DVM and having issues, with three packs and correct BMS addresses.. Today for some reason the Growatt decided it did not like the L1 L01 51 Lithium BMS communications setting and went to Fault 20, and it was working fine for past month.. but today No, keep going to Fault 20 which on page 19 of the manual Program #5 tells you to select one of the four L1 L01,L1 L02, or L02, -L04 etc.. all the Protocols for this Growatt are 51.. so I selected L1 L02 51, and it began working again communicating with the 3 Packs, all in Parallel Pack 1 is master, Pack 2 & 3 are considered slaved.
I would like to know what is the differences between L01, L02-L04 etc.. all are Protocol 51 address and why did the Growatt say No more BMS on L01, but L02 ok, when it had been working with L01. however the Pack 3 SOC was not being kept up with proper charge amounts or in balance with Pack 1 master and Pack 2 slave.. etc.
Thanks in advance. Ric retired aircraft tech, DIY solar guy..
I would like to know what is the differences between L01, L02-L04 etc.. all are Protocol 51 address and why did the Growatt say No more BMS on L01, but L02 ok, when it had been working with L01. however the Pack 3 SOC was not being kept up with proper charge amounts or in balance with Pack 1 master and Pack 2 slave.. etc.
Thanks in advance. Ric retired aircraft tech, DIY solar guy..