Hello,
I recently started having to maintain someones solar power system. They are using the MPPT 75/10 charge controller and the BMV 700. They managed to hook up all the connections and are getting data output on one of their computers. They appear to be tracking a number of values and I wanted to get some clarity on what exactly they represent. I have been thorugh the VE direct datasheet but I have some further questions.
The values being collected are as follows.
V - This appears to be the voltage of the battires, that is clear enough.
P - What is this the power of? Is this the net power = (power in - power out)?
CE - I am assuming this is the cumulative power consumed, but it is not clear since when. is there a way to reset this value?
VPV - This is clear, it is just the voltage accross the solar panel leads.
PPV - Is this simply the power in from the solar panels?
I - Battery current has an explanation in the document
iL - I guess this is simple the current draw of the load.
Apologies if this question is very basic and vague. I just want to get the terminoology clear so I can understand this system better.
Thanks a lot!