Huawei SUN2000 Inverter: WIFI Dongle Connection, Firmware Update & FusionSolar

rokbok wrote:

Check in the SUN2000 if the update message states its version, if so then check on the phone, FusionHome -> UpgradeDewice if there are any updates and if there is this version.

You can also check the Maintenance tab -> Update the device in the SUN2000, it will display the current version, click on Update and check if it shows a newer version, if so, update, I will not tell you whether it is on your smartphone or only informs you that it is available and will download directly from the net.

It does not show, immediately after the connection a message pops up that I need to update, otherwise I will not enter anything.
And what is FusionHome for? How is it different from the SUN2000?

FusionHome, this is an app like SUN2000, but forget about it, just either update or contact the installer and he will do it, remotely or visit you, I don't know.

I don't know what these dilemmas are for. You upload a file to your phone, go to the inverter and update it directly by connecting to it as an AP. It takes a few minutes, somehow, but it will reboot in the end and that's it.

mariusz.lubicz wrote:

You upload a file to your phone, go to the inverter and update it

Well, this is what this file is about, if @MisiekDPx had it, there would probably be no discussion, he has a poor link and he is afraid that when he approves the update, he may interrupt it, what the consequences will be, it is unknown.

But the file will already be downloaded to the phone? It connects to the Internet, there is probably nothing to say about it during the update.

Exactly as there is a file on the phone, the Internet is no longer needed. You need to connect to the Wfii network of the inverter and update via the SUN200 app

Exactly and even the internet will not be there, because if the AP will be from the inverter. I even advise you to turn off cellular data and leave only wifi.

@szczukot @rokbok update done. And now a few interesting facts for the future:
- the update file for the inverter was already in the application (at least in FusionSolar - it was enough to log in to the application using the network, then disconnect the mobile network and completely cut off the Internet and go to the "Me" tab -> "Putting the device into operation" -> we connect to the inverter WiFi AP + QR code -> update), it will probably be exactly the same in the SUN2000 application, i.e. the update file will already be in the application,
- another point that you can update the inverter being completely cut off from the internet, I'm a bit shocked that you don't need any connection (I thought it was downloading from the network), but it's on +,
- going further, you can experience an unpleasant "surprise" (? - when updating the inverter at approx. 80%, the inverter probably restarts, which results in breaking the WiFi connection with the inverter and this will result in a message that the connection has been broken, some may get scared that something went "wrong", it did not reach 100% and the inverter is damaged - but none of these things, it turns out that it's normal (it's a pity that I didn't know about it ? ,
- the update takes more than 10 minutes, as if the file is flying via WiFi, weighs about 3MB, but it updates slowly and you have to be patient.

Now I am wondering how to update the dongle here, because here I have no idea how to connect to it I tried to connect to the same router as the dongle, but it does not detect.

PS. In the application I found a setting regarding "High voltage limit when reconnecting to the grid" with a setting of 253V and is this value responsible for when the inverter will turn off when the grid voltage is high? What would happen if I changed this value to a higher one (some problem with the distributor or the distributor of the network would have a problem with it)?

MisiekDPx wrote:

PS. In the application I found a setting regarding "Upper voltage limit when reconnecting to the grid" with a setting of 253V and whether this value is responsible for when the inverter is to turn off when the grid voltage is high

I do not advise to touch it, you can burn yourself and other equipment in the house, this is the limit value, change only at your own risk with all related consequences.

It was all about updating the inverter I always download the latest apps But in general, I recommend the SUN2000 to update the inverter, or if someone has the ability to do FusionSolar (you only need to log in using the network at the beginning (SUN2000 will work from the beginning without internet)).
And FusionHome I don't know if it's a good choice, because this app is no longer updated. As far as I remember, this is an old version of today's FusionSolar application, so there is also a risk that FusionHome will already have old inverter software in it, and FusionSolar or SUN2000 much newer :)

Added after 1 [minutes]:

rokbok wrote:

MisiekDPx wrote:

PS. In the application I found a setting regarding "Upper voltage limit when reconnecting to the grid" with a setting of 253V and whether this value is responsible for when the inverter is to turn off when the grid voltage is high

I do not advise to touch it, you can burn yourself and other equipment in the house, this is the limit value, change only at your own risk with all related consequences.

I thought so too. I asked out of curiosity and curiosity, as some people write that their inverters turn off because their network is so clogged.
PS. In Germany, this value is supposedly higher (probably something around 264V)

If people have unblocked inverters, they can win against their neighbors by setting 1-2V more This is the voltage on the inverter, on its terminals, and in the cable connector it will be lower by these 1-2V.

MisiekDPx wrote:

Now I am wondering how to update the dongle here, because I have no idea how to connect to it. I tried to connect to the same router as the dongle, but it does not detect.

Just disconnect the smart dongle and after re-plugging in, a new network will appear, the rest is similar to updating the inverter. As if what it is below I am putting a more detailed instruction.

lizak1983 wrote:

MisiekDPx wrote:

Now I am wondering how to update the dongle here, because I have no idea how to connect to it. I tried to connect to the same router as the dongle, but it does not detect.

Just disconnect the smart dongle and after re-plugging in, a new network will appear, the rest is similar to updating the inverter. As if what it is below I am putting a more detailed instruction.

This was missing

Hello
Have any of you encountered the message in Fusion Solar "Device detected from unauthorized channel. Access denied"?
I bought a Sun2000 8ktl M0 inverter from an importer - a Polish wholesaler, Chinese version, connected with Fusion Solar, there was a prompt to update, I updated, set up Internet access via LAN - everything ok (despite the Chinese stamps). Then I wanted to add the inverter to the created installation in Fusion Solar and then this access denied message started to appear. Anyone have any idea for this?

I also have an identical inverter (czajnis) and in January this year it was possible to register without any problems. In the meantime, they changed the app and servers - maybe that's the problem. Try the FusionHome apke there, the language is normal (I only have Chinese in sun2000) In the communication options, check the server if you have there `` intl.fusionsolar.huawei.com '' on port 27250? Do you have there that the connection to the cloud is ok?

BTW recently I wrote to the support for Europe and they responded normally ...

wyimag11 wrote:

Hello
Have any of you encountered the message in Fusion Solar "Device detected from unauthorized channel. Access denied"?
I bought a Sun2000 8ktl M0 inverter from an importer - a Polish wholesaler, Chinese version, connected with Fusion Solar, there was a prompt to update, I updated, set up Internet access via LAN - everything ok (despite the Chinese stamps). Then I wanted to add the inverter to the created installation in Fusion Solar and then this access denied message started to appear. Anyone have any idea for this?

Hello. I didn't want to start a new topic so I'll ask here. When matching the inverter to the panels, do we compare the Isc of the panel with the maximum operating current at MPPT or the maximum short-circuit current MPPT? I am thinking of choosing the Sun2000 4ktl M1 due to optimization and can I choose panels with Isc above 11A for it? Max MPPT operating current of the inverter is 11A and short-circuit 15A.

I have a Huawei M1 and full optimization. You can see in the graphs of the inverter input current that it is limited to 11.2A, as if
the inverter forced the optimizers to limit their output current to this value. At the same time the output power
the inverter was below the rated power. In turn, the SUN2000-450W-P optimizer has a maximum input current of 13A and this is the criterion
must be taken into account when designing the chain.
In some Far East countries, M1 inverters (3-10kWp) are already available with an increased input current limit of up to 13A.

I 4KTLM1 want to marry 340w modules (this is the size that suits me best to put it on the roof). The working module is 35V, idle 40.9V. And working 9.72A, and short-circuit 10.32A. There will be 12 modules. Full optimization due to shading.
Will such a selection be correct?

Robyn212 wrote:

Hello. I didn't want to start a new topic so I'll ask here. When matching the inverter to the panels, do we compare the Isc of the panel with the maximum operating current at MPPT or the maximum short-circuit current MPPT? I am thinking of choosing the Sun2000 4ktl M1 due to optimization and can I choose panels with Isc above 11A for it? Max MPPT operating current of the inverter is 11A and short-circuit 15A.

You can, because Isc is a short circuit. Some 450W panels like this have a little more than 11A. Everything is fine, as long as you do not overdo it.

Added after 2 [minutes]:

Robyn212 wrote:

Will such a selection be correct?

Yes, but in 1 string and a little few panels, add a few more.

Added after 3 [minutes]:

jsw wrote:

as if the inverter forced the optimizers to limit their output current

After all, the optimizers only go around the shaded panels so that the current flows through it instead of through the diodes, because you would quickly get hotspots from overheated diodes. 11A this limits the inverter and won't take any more. But the tension in the string increases.

Unfortunately, more panels will not enter me. I was drawing it all over the place. Of course, the panels are in one string.

It's hard, you will have to live it

mariusz.lubicz wrote:

After all, the optimizers only go around the shaded panels so that the current flows through it instead of through the diodes,

This is not the case with Huawei optimizers. The shaded ones still produce and are not "bypassed", below are the output power graphs of two topologically distant panels. Green shaded still produces although less and less, blue is not shaded.
The optimizer is a DC / DC converter controlled by an inverter, which communicates with it via a protocol on DC cables.

In my case, does it make sense to choose 3ktl M1 instead of four?
One more thing. Do Huawei inverters meet the NC RfG requirements?

I would do 4kW
The certificate is there

Robyn212 wrote:

Do Huawei inverters meet the NC RfG requirements?

Attached, older and newer.

I have measured the roof more precisely and the joint will be 13 pieces. Would it be better to give 13 340W modules or 12 355W modules? More powerful modules already have a larger size. Each module will have an optimizer.
Below are links to these modules
https://allegro.pl/oferta/panel-fotowoltaiczny-tp6f60m-340w-half-cut-11259595634
https://allegro.pl/oferta/panel-modul-fotowol...-000af7f60c40755aa386fe7e14ee7421a14291fbf951

What these divagations have to do with the title of the topic " Configuration of the Huawei SUN2000 inverter. ", the plot is littered with a completely different topic, it gets such a mishmash.

In November I will have an optical fiber set up and a new router of course. Do I need to do anything about the Huawei Sun 2000 6KTL Inverter or Fusion Solar App? Does this inverter update its software somehow automatically and at what voltage will it turn off - 253V?

The easiest way is to set the ssid and wifi password in the same way as you currently use in the new router, then you will not need to change anything. As for the voltage, the inverter will turn off if the 10-minute average is equal to or greater than 253V.

Unless the mundry installer said otherwise ...

lizak1983 wrote:

The easiest way is to set the ssid and wifi password in the same way as you currently use in the new router, then you will not need to change anything. As for the voltage, the inverter will turn off if the 10-minute average is equal to or greater than 253V.