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pioneer01 avatar image
pioneer01 asked

MPPT 100/20 Load switch low voltage level

I configured MPPT load output with low voltage level 22,0 V and high voltage 25,0 V as you can see in the screenshot.

bildschirmfoto-2023-02-13-um-215544.png

Basically everything works really fine but I don't know why load output is disconnected at ~22,3 V every day:

bildschirmfoto-2023-02-13-21-47-33.png


Does anybody have an explanation for that? Jumper is removed and Raspberry Pi with Venus OS connected on VE.Direct Port.

Thanks for your support!


MPPT Controllers
bildschirmfoto-2023-02-13-um-215544.png (129.8 KiB)
bildschirmfoto-2023-02-13-21-47-33.png (75.0 KiB)
2 comments
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Alexandra avatar image Alexandra ♦ commented ·
@pioneer01

Maybe just a reading difference. Have you tried adjusting your cut off voltage 0.3v lower?

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pioneer01 avatar image pioneer01 Alexandra ♦ commented ·

Hi Alexandra, I can eliminate reading difference because I observe the cut off at 22,3V live too. Didn't adjust the voltage lower. Thought someone can explain the behavior.

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1 Answer
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pioneer01 answered ·

It seems that there is an offset of about 0,3V. I configured cut off voltage with 21,7 V now. MPPT disables load at 22,0 V now.

Can somebody explain this behavior?

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