Good day everyone. Please kindly assist me with my problem. I'm using Solarwize 3.2kva 80A MPPT charge control. MPPT VDC operating is 120 to 450. Normal operating voltage is 240VDC. I have connected 2x455w and 1x445w current specs very close to 445w. I get 134V from my PV. My question or my problem is that my inverter shows the pv on the display, but is flashing not charging. Is my pv voltage low, do I need to add pv, or adding separate MPPT charge controller with lower voltage range. Please advice. Thank you in advance 

Yours Jabu from springs GP

@Jabu I do have a possibly stupid question here. Are you connecting an external MPPT charge controller to PV input of inverter? Does the inverter not have its own MPPT controller? 

Edited September 25, 20223 yr by BritishRacingGreen

No Sir. It has its own built-in. On the external one I was thinking if it can be a cheaper option than to buy extra PV or may be I have a problem on my inverter 

Edited September 25, 20223 yr by Jabu

8 hours ago, Jabu said:

Solarwize 3.2kva 80A MPPT charge control.

That's kind of strange. I assume it's this one:

https://www.batteryfix.co.za/product/solarwize-hybrid-inverter-pure-sign-wave-80-amp-mppt-24-volts-3-2kw-parallel/

But if it's capable of outputting 80 A into a nominally 24 V battery, that would usually be classed as 80 x 25 = 2000 W. Very "optimistic" marketing.

But the inverter won't see the power from this MPPT; it will go directly to the battery (assuming that's how you've connected it). So if you don't have any other PV connected to the inverter's PV input, I'd expect the PV icon to be off, not flashing.

I think I'm missing something here.

Thats the one. It is flashing and pv generates 135v and and the minimum charge controller is 120v. If l can ask what are advantages of mppt controller. So do I need to add more pv

Edited September 25, 20223 yr by Jabu

I think the 135V is enough to start the MPPT, but as soon as it starts MPPT-ing, the voltage drops to below the minimum 120V and it switches off, restarting the process again. (which is why it is flashing)

20 hours ago, Coulomb said:

I think I'm missing something here.

Duh! What I was missing is that the Solarwise device linked to is the whole inverter, not an external MPPT charge controller.

So the 3.2 kW is the rated AC output of the inverter, not of the MPPT solar charger part.

As for why the PV icon is flashing, P1000's suggestion is a good one. If that's the case, you will presumably just need another solar panel to raise the voltage.

8 hours ago, Coulomb said:

Duh! What I was missing is that the Solarwise device linked to is the whole inverter, not an external MPPT charge controller.

So the 3.2 kW is the rated AC output of the inverter, not of the MPPT solar charger part.

As for why the PV icon is flashing, P1000's suggestion is a good one. If that's the case, you will presumably just need another solar panel to raise the voltage.

 

Thank you. I will do as your advise 

@Jabu

Did adding another panel fix this issue as I am facing the same

 

On 2023/08/02 at 2:03 AM, Cjsouls said:

@Jabu

Did adding another panel fix this issue as I am facing the same

 

The opening voltage for the mppt was low. I added one PV and opening voltage was then resolved 

Good day,

On a Solarwize 3kva inverter; does the PV panels show on the display only if there is a PV charge coming through ? I have just connected my PVs and nothing displaying on the inverter. I checked the charge with a multimeter and it is zero as it is night but I thought the display would show PVs being connected ?

Thanks