Setting SBMS0 for DSSR50

[Dustin Dudley]

I have 4 12v panels wired as two sets of (2 panels in parallel).  I use a SBMS0 to control charging and use a DSSR50 (one set of 2 panels in parallel into "PV A" and one set of 2 panels in parallel into "PV B").

Then RC+ is wired to EXTI04+ and the RC- is wired to the EXTI04-.

On the SBMS0, should EXTI04 be set to type 1, 6, or 2?

[Dacian Todea (electrodacus)]

EXT IO4 should be set as type 1 (it should already be set as type 1 by default).

But are the panels in parallel ? Do you have a 12V battery ?

If you have a 24V battery then panels should be connected in series.

[Dustin Dudley]

Thank you!

It is a 12v battery for my gate controller. So, I wired the panels such that it is 12v (2 panels in parallel to PV A and 2 panels in parallel to PV B).