question

o-alcobia avatar image
o-alcobia asked

MPPT still produce

hi to all,
Today I find some estrange,
I shutdown my system for testing the protection, i cut the power supply to multiplus II, battery charger (simpbms bms) Cerbo Gx, but the mppt connected via ve.direct to GX in absorption mode .... still send energy to the battery's .... is dangerous because this energy goes without control.
Is possible fix this fault ? my config ? ...
MPPT Controllers
2 comments
2 |3000
Toggle Comment visibility. Current Visibility: Viewable by all users

Up to 8 attachments (including images) can be used with a maximum of 190.8 MiB each and 286.6 MiB total.

Matthias Lange - DE avatar image Matthias Lange - DE ♦ commented ·

What Batteries and BMS do you have?

0 Likes 0 ·
o-alcobia avatar image o-alcobia Matthias Lange - DE ♦ commented ·

two modules from tesla and a simpbms.

0 Likes 0 ·
2 Answers
Murray van Graan avatar image
Murray van Graan answered ·

When the sun is out and you don’t interrupt the D.C. bus to the MPPT, it will stay on. Rather disconnect the PV also, which will see the MPPT shut down

2 |3000
Toggle Comment visibility. Current Visibility: Viewable by all users

Up to 8 attachments (including images) can be used with a maximum of 190.8 MiB each and 286.6 MiB total.

Matthias Lange - DE avatar image
Matthias Lange - DE answered ·

Does the BMS has some sort of communication to the Cerbo or the MPPT?

1 comment
2 |3000
Toggle Comment visibility. Current Visibility: Viewable by all users

Up to 8 attachments (including images) can be used with a maximum of 190.8 MiB each and 286.6 MiB total.

o-alcobia avatar image o-alcobia commented ·

yes, but when everting fail .... this is my point
... shit happens when U don´t aspect :(

0 Likes 0 ·