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

rokbok wrote:

It was like that before SUN 2000 was added to the "yellow" app, logging in looked completely different than now, now it is enough to be within the range of home WiFi, and not within the WiFi range of the inverter, the description of what it looked like is in post # 32 on the second page of this thread.

Wait a minute ... Now in the yellow FS you don't have to turn off the GSM connection and connect to the inverter network?
Since when is this the case? I do it all the time the old way

dprzyb wrote:

It's now in yellow FS

The yellow FS seems to have just lost its raison d'?tre.

If you are also interested in the functionality and support of the new FusionSolar application / website, please visit the link on the electrode, perhaps some of them do not know :)

Link: https://www.elektroda.pl/rtvforum/topic3714816-270.html#19403692

Gentlemen, what network configuration (State) do you use to have the best production?
Before updating the inverter, it reached the maximum without any problems and now it does not even reach the rated power.

after installing the installation, the wi-fi signal was too weak (the inverter is under the panels outside). I bought a signal amplifier, I managed to connect and it worked beautifully for 8 days. from Sunday after fusionsolar launch there is info offline. on the phone shows me that the wi-fi signal is strong, I can easily run, for example, youtube. I logged in to the inverter, re-entered the wi-fi network, it starts to connect, it starts blinking green, at 50% it starts blinking red, and at about 82% it pops up that it cannot connect to the router. what could it be?

In my case, the inverter is connected to the routers by a cable and this is the best solution. As it is possible to connect directly to the inverter through its "SUN-2000 ..." Wi-Fi access point, I can see that the distance from it is crucial. At 3 meters from the inverter (wall), it is ok for me, but moving away to the next room (about 8 meters from the inverter) is no range. I installed a Wi-Fi amplifier (TP-Link TL-WA850RE) in the socket located just 3 meters from the inverter and it is now ok.
To sum up:
Connect by cable to the router or mount the WiFi repeater close to the inverter.

I did so - I installed the tp link amplifier, the inverter is behind one wall - now it is about 5-6m from the amplifier. for the first few days everything was running beautifully - and since Sunday I don't know what happened - it doesn't connect and it's over. I shared cellular data from my wife's phone - it caught the net and fusion online connected - but the phone was right next to the inverter. I do not have a cable - the inverter is under the roof of the carport - 2m from the house, I would have to hang the cable, for example, between the roofs and pull the cable over the facade.

is it possible that the antenna in the inverter is damaged and its reception power has dropped? or something like that?

Can, for example, unscrewing and screwing the dongle back on help? and won't that reset the settings?

And you have the correct home WiFi network set up on the inverter, are you trying to connect via the inverter WiFi network?

today, to connect the inverter with home wi-fi, I connected to the application via the inverter wi-fi, I will look for a wi-fi network, chose mine and gave the connection. the LED on the dongle blinks green until 50% of the connection, then it blinks red again and at about 85% it pops up that it cannot connect to the router.

the information appears that the signal strength may be too weak, but before that, for a few days everything was connected without any problems and it worked beautifully.

And the signal from the home network reaches the inverter, it is stable, if the signal is weak, this can happen, install an app such as WiFi Analyzer on your smartphone and check the signal strength of your home WiFi network at the inverter, the one you have set on the inverter.
In what band you have 2.4 GHz or 5 GHz WiFi, the inverter may not support the latter.

I have 2.4. It seems strange to me, because the first 8 days it was ok, and now I don't want to connect at all. I will check the wifi strength with the app next to the inverter, maybe something happened with the signal amplifier, but I didn't touch it at all and show me the signal strength at full on the phone next to the inverter

I bet on the instability of the signal, but it can also be something else, it is difficult to clearly determine, let us know what strength the app will show in dBm, the last tab in the app, or the reading from the graph, data on the right on the first tab.

at the inverter is -55dBm, wifi signal 85% - this network from the amplifier

If it is a stable indication, it should be ok, i.e. the reason is different, which is hard to say.

On YouTube, I found a video of the guest showing in the previous version of fusion the place where the dongle was in - if there was a gray LED, he ordered to unscrew it and re-screw it. Maybe when I restarted the inverter (I thought it might help) I moved it? I do not see a place with a dongle in the new version, but maybe it's interfering with something?

I don't know, I don't have a dongle, I have WiFi built in and only the antenna is sticking out, unscrew it, turn off the inverter, screw it back in and start the inverter, maybe it will do something, it can also be damaged, I have no more ideas.

And I would bet shit..ne repeater. Reset it and set it up again.
Or, if you have such an option, as part of the test, throw it out at all and the router at home, try to move the inverter as close as possible - for example, on some long RJ45 cable and connect it directly.

Log in to the router and set network encryption to Open for a while. How the inverter catches, i.e. it has a problem with the encrypted connection.
Then try to set an older encryption standard, e.g. WPA / AES, or try WPA2 / AES later.
If your router is set to generate one SSID for both standards, try turning on separate names for 2.4G and 5G and select 2.4G when configuring the inverter.

today's attempts - I disconnected and reconnected the dongle - did not help. I restarted and reconfigured the amplifier - it did not help. I pulled the router through the window towards the inverter - the cable was enough up to a distance of about 2m from the inverter - it did not help. there was nothing between the devices - no walls. I shared cellular data from my wife's phone - the inverter connected to the network. I connected the router with the inverter with a cable - it connected. summary - dongle is ok, both on cable and wi-fi, but my home wifi does not suit it. it is definitely 2.4G.
gmacko - I'd love to take your advice, but I don't know how to do it. what I have done so far is quite a feat for me - I am completely ignorant of these matters.

Added after 4 [hours] 55 [minutes]:

managed to! after connecting the router with a cable, the installer logged in remotely to the inverter - there were dongle and inverter updates available - both installed. I unplugged the cable, connected to the router via wi-fi - and nothing, no connection. after an hour I go to the inverter - green LED. I launched the application - it works. apparently the update did its job, and the inverter took a while to recover.
so far the graphs from the last few days have disappeared, even those when there was still connectivity - but maybe the data is still being transferred.

Hello, it fell on me. I purchased a Sun2000 inverter from an auction site. Now it turns out to be a version straight from China. I can only choose from 3 types of networks. Two Chinese and one Custom (50Hz). Can someone throw screenshots with the inverter settings for Poland or Germany? I saw on this thread that someone had already had the same problem. I would like to compare the settings with those in the inverter.

kravat3 wrote:

Can someone throw screenshots with the inverter settings for Poland or Germany?

here are my settings - according to PGE guidelines :

What are they up to with the software version numbering?
On the support I see that in June soft V100R001C00SPC601 appeared (recently it was 134)
And after entering the 601 I can see the soft V100R001C00SPC135 and V100R001C20SPC107.
What this is about?

Hello. After half a day, fusion solar stopped working, i.e. it works but everything is suspended and shows the same. Refreshing the application does not help. Is it a breakdown or will such a circus repeat itself often?

For me, Fusion Solar works all day without stuttering, yesterday the same.

He cannot start this inverter, after switching the DC switch, the voltage on the terminals drops to 2V, with the switch turned off, the voltage around 300V on both strings. Does anyone know what is wrong?

Check the cable connection, whether it is + with + and - with -, check the overall AC and DC connections, earth connection in the inverter, there must be an error somewhere.

That's right, badly crimped tips, black is and red is -. Someone has reported a similar problem in another thread. I checked it with a multimeter, but I made a "school mistake" with the wires, it's time to buy a decent meter.

kravat3 wrote:

That's right, badly crimped tips, black is + and red is -.

Most often, such an error is made by misinterpreting the serial connection, since in a series of e.g. panels we connect + with -, someone may think that the inverter socket with + should be connected -.
The thing is that we connect the cables in parallel with the inverter and therefore a connection error is made.

It's like connecting two separate strings.
But if, for example, you have a pair of wires from 6 panels and a second pair from the second six panels to the inverter and you want to connect them as one string, then you must connect + with - between the strings