question

catch21 avatar image
catch21 asked

System not allowing PV to power loads

Hi everyone,

Doing renovations and the workers were using jackhammers and the walls where the inverters and mppt's were mounted on, were vibrating a little so i figured i power the entire system down to prevent any damage.

Two days later, i power everything back on , and notice that the house is only taking power from grid and not PV.

I didn't change any settings, so confused as to what is causing this ?

TIA !

system setup:

3 x Multiplus ii ( 1 on each phase)

3 x MPPT

27 x 410w panels

8 x Pylontech US3000

VRM
4 comments
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shaneyake avatar image shaneyake commented ·
Can you post a picture of the Battery -> Parameters, you should see Charge Voltage, Current, Discharge Current. This would help rule out DVCC.


Also on the menu of your GX is all your devices present?

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catch21 avatar image catch21 shaneyake commented ·

Thanks for the reply.

I forgot to mention that the PV was charging the battery bank, i powered all off at 48% and it charged to 100% .

now in the evening, its still powering the house from grid instead of battery.


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device-list.jpg


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shaneyake avatar image shaneyake catch21 commented ·
Oh okay, that makes more sense. Can you send a picture of your ESS settings?

The active SOC might be at 100% in which case the system will return to normal operate tomorrow once the batteries are full.

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catch21 avatar image catch21 shaneyake commented ·

Here you go... i checked all cables etc, nothing seems loose or anything.

The vibrations on the walls were very light, nothing serious, otherwise i would have removed them .

The builder told me they removed a sub-db and connected only a few circuits to provide power to 2 rooms.

Can this affect the system in any way ?

ess.jpg

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2 Answers
Matthias Lange - DE avatar image
Matthias Lange - DE answered ·

Check all the communication wiring, maybe the VE.direct connections are loose.
Also check the power wiring.

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catch21 avatar image
catch21 answered ·

OK guys, the error was on the power-on switches on the inverters, can you believe it !

I powered it up on " II " instead of " I " .

Thanks for everything, much appreciated.


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