Solar panel charger power very unstable

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zygao asked Jun 30, '23

Solar panel charger power very unstable

The solar charger power very unstable, The MPPT is smart 250/100 VE.CAN, the SOC of house battery is 70%. What is the reason ?

MPPT SmartSolar Solar Panel smart solar charging behaviour

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Modifications Space

Node Red Space

Answer 1 · 2023-06-30T06:07:37Z

zygao answered · Jun 30, 2023 at 06:07 AM

When the state is "Foat", the charger is very small. When the state is “External control”，the charger power is high. I don't understand why the state is changed every some seconds ?

If it is communication problem ? But there is no alarm on GX touch panel.

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Answer 2 · 2023-06-30T06:25:18Z

nickdb answered · Jun 30, 2023 at 06:25 AM

You need to see if the entry on the GX is disappearing, it won't generate an alarm. Might be a bad cable. Make sure you aren't using both a cable and smart networking, these can conflict and aren't intended to be used together.

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zygao commented · Jun 30, 2023 at 08:16 AM

Thanks very much, I find the reason. I run a new VE.DIRECT cable, now it is OK.

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Answer 3 · 2023-06-30T21:21:48Z

herzigwi answered · Jun 30, 2023 at 09:21 PM

I see something similar on my configuration. The drops on my case are just clouds. Looks the same.

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