Even though SOCH is correctly set to 95%, the system does not resume charging.
Everything worked very well with the previous software. I updated to 2.92-2 and have problems.
Where can I download an older version of the software to check this?
System managed by Cerbo DVCC (MultiPlus, MPTT) .
I will add that in the previous version of the software it was possible to set the Charge float voltage coefficient [0.1 - 1] to "0" and with this setting my system worked very well for 2 years.
We just added it back to our REC NA website downloads. Here is the link
https://rec-bms-na.com/product-manuals/#7-8-wpfd-rec-active-bms
Thank you very much for the older version, I already installed it.
Regards
@Christopher I put your settings in a calculation sheet with the formulas from the manual.
Result in:
Bulk charge max 14.18V
Float 13.08V
Restart charging, if below 13.04.
If you voltage is not below 13.04, it will not recharge, probably is this what you see?
Try these settings:
Settings:
Balancing end 3,55
Balancing start 3,45
max allow delta 0,25
end off charge 3,52
end off charge hysteresis 0,19
max allow voltage 3,65
max allow voltage hysteresis 0,1
min allowed Voltage 2,8
Min allow voltage hysteresis 0,1
min Vcel discharge 2,9
CFVC 0,9
SOCH 0,05
Which give:
Max charge 14,18V
float 13,4V
recharge if below 13,28 AND lower as 95%soc
let us know the result with new settings.
Maybe your old firmware didnt support CFVC, and you made not the best settings.
Good catch Ben!
@Ben
"let us know the result with new settings."
Of course, let's wait 24 hours, I can already see that your settings work better.
"Maybe your old firmware didnt support CFVC, and you made not the best settings."
Yes .
PS.
I installed Arco Zeus with another system and I'm waiting for the yacht to be launched to check how it works, and I will definitely report back.
@Ben Everything works very well.
Thank you .
@Christopher ,
The max charge, float setting en recharge settings is just one example to get the system running.
You can change this settings to the settings you like yourself.
