question

pmano avatar image
pmano asked

PV input power fluxes/dips in a pattern, is this normal ?

Given you are looking at 3 or 6 hour window of VRM. There is almost a perfect pattern of 'dips'

Is this normal ? See picture.


* I am in CO, Fire smoke is constant and has been for weeks.

* I have DVCC enabled, is this causing this ?

Cerbo GX

24/3000/70

MPPT 250/100

BMV-712

x6 100Ah 12v Battleborn in 3PS2 24V 300Ah

x8 400W panels 2PS4 ~ 190v/20A



MPPT ControllersDVCC
1598463233602.png (48.9 KiB)
1598470968470.png (161.8 KiB)
dips.png (117.8 KiB)
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spirou avatar image spirou commented ·

MPPT sweep I think

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pmano avatar image pmano spirou commented ·

After looking up MPPT sweep, I think you are correct.

Its either the smoke=clouds which is constant~ or possibly bad wires ??? as suggested on some of the posts on this subject

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2 Answers
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launacorp answered ·

I have the same issue on a MPPT100/20 on complete sunny days.


I don't know what this causes, but I think it could be normal for some reasons. As far as I know today the same issue I had with a 75/20 mppt before I got a 100/20.

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pmano avatar image pmano commented ·

Looks like it could be MPPT sweep, which is more pronounced now. Problem is variables are many that have changed. From when I did not see this, to now I see it.

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pmano avatar image
pmano answered ·

Here is right now today. I have not touched anything / made any changes.

No massive MPPT sweep dips.



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