I have just downloaded the new firmware 1.46 for my Blue solar 75/15 and now the temperature compensation doesnt work. I am seeing voltage at the absorption voltage set point. If i remove temperature compensation nothing changes. If i drop the absorption voltage setting the voltage goes down. It doesnt matter how I set the temperature compensation, it has no effect. Help please
By any chance is it as cold where you are as it is here?... my float voltage is 28.2 temp compensated. It seemed high until I looked it up.
Hi Tim. Unless you have external temp sensing set up, the mppt will determine it's program using it's own internal sensor. But only once per day, when it fires up in the morning.
So any changes you make to temp comp mightn't show til the next morning. You could simulate a new day by powering down the panels, but there's a min time involved there, deliberately to avoid effects of transient (serious) shade. I can't remember what that is, but if you can spare your panels for 30 min that might work.
If you're using VictronConnect for daily history that will foul your day count though.
That said, I noticed my own system return to a non-compensated Abs V after loading 1.46. It was minor for me, and returned to 'normal' the next day.
I can't see anything in the firmware changelogs relevant. Maybe just wait'n'see til tomorrow?
Opposite problem here in Spanish Virgin Islands. Its hot!
