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

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  • #121 19293974
    strucel
    Level 35  
    Math13 wrote:
    domelek wrote:
    You enter the Fusion Solar website. You log in and enter the settings at the very top. I think you can still do it ...


    It's not very intuitive, but I managed it somehow.
    You have to find the device yourself and the matching software.
    I just still don't understand:
    1) Why I didn't get the update from the machine like my colleague "mondo20001"
    2) I do not see any software with the ending ... SPC126 on the list.
    3) I can't see firmware newer than: V100R001C00SPC122
    Huawei SUN2000 Inverter: WIFI Dongle Connection, Firmware Update & FusionSolar


    What inverter do you have? Until my latest version is the one marked by me, im going fast 130 came out in February as far as I can remember.
    Huawei SUN2000 Inverter: WIFI Dongle Connection, Firmware Update & FusionSolar Other files are for other inverters, probably parts to those that do not exist in Europe, theoretically, the system should not give a bad one, but seeing how the Huawei is thrashing with the application, I would not risk it.
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  • #122 19294028
    Math13
    Level 14  
    andrzej20001 wrote:
    For me, the machine sucks up updates.


    I don't and I don't understand why. :-(

    Added after 7 [minutes]:

    strucel wrote:
    What inverter do you have?


    I have both installations on identical inverters.
    SUN2000-5KTL-M0
    Huawei SUN2000 Inverter: WIFI Dongle Connection, Firmware Update & FusionSolar

    In the list (as I indicated earlier, in the search window) I also found updates for SDongleA-05.
    Huawei SUN2000 Inverter: WIFI Dongle Connection, Firmware Update & FusionSolar
    How do you guys. Worth updating?
  • #123 19294107
    kazkyy
    Level 6  
    Hi!
    He has been trying to connect to the dongle in the inverter for a long time. The inverter model is sun2000-5ktl-m0 and for the gingerbread house I can't get the connection ...

    I have an insight into how many panels are produced for me, but this USB dongle for the inverter is flashing red all the time and I have no idea how to connect to it, I think I've tried everything ... it's not the fault of the router ...
    I connect to the application using my phone. As I wrote, I connect to the inverter normally, I already have my password for the installer and the user. I am asking for help, because my hands are dropping, how should I make the dongle online and the quick configuration will be successful with the working dongle.
    Huawei SUN2000 Inverter: WIFI Dongle Connection, Firmware Update & FusionSolar Huawei SUN2000 Inverter: WIFI Dongle Connection, Firmware Update & FusionSolar Huawei SUN2000 Inverter: WIFI Dongle Connection, Firmware Update & FusionSolar Huawei SUN2000 Inverter: WIFI Dongle Connection, Firmware Update & FusionSolar
  • #124 19294388
    domelek
    Level 17  
    Math13 wrote:
    domelek wrote:
    You enter the Fusion Solar website. You log in and enter the settings at the very top. I think you can still do it ...


    It's not very intuitive, but I managed it somehow.
    You have to find the device yourself and the matching software.
    I just still don't understand:
    1) Why I didn't get the update from the machine like my colleague "mondo20001"
    2) I do not see any software with the ending ... SPC126 on the list.
    3) I can't see firmware newer than: V100R001C00SPC122
    Huawei SUN2000 Inverter: WIFI Dongle Connection, Firmware Update & FusionSolar


    The ending 133 is the newest (at the top in your screenshot)
  • #125 19294727
    andrzej20001
    Level 43  
    Today it went, updating the inverter on spc133 and dongle on spc118. But the second time they took off
  • #126 19295321
    Math13
    Level 14  
    andrzej20001 wrote:
    Today it went, updating the inverter on spc133 and dongle on spc118. But the second time they took off


    Do these update bring any changes to the visual preview of the inverter operation, add any interesting options?
    Is it just, for example, an improvement in the inverter operation and the ordinary user will not notice the changes?
    I am asking because I hesitate to install manually, if both my inverters are not signaling and are not installing updates from the automatic machine. I am afraid not to spoil something, because the inverters on the old software seem to work well.
  • #127 19295396
    domelek
    Level 17  
    Math13 wrote:
    andrzej20001 wrote:
    Today it went, updating the inverter on spc133 and dongle on spc118. But the second time they took off


    Do these update bring any changes to the visual preview of the inverter operation, add any interesting options?
    Is it just, for example, an improvement in the inverter operation and the ordinary user will not notice the changes?
    I am asking because I hesitate to install manually, if both my inverters are not signaling and are not installing updates from the automatic machine. I am afraid not to spoil something, because the inverters on the old software seem to work well.


    In addition to the added grid code, the last one improves something with sending data to the server and more for the M1 series (batteries, optimization), the update takes about 20 minutes ...
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  • #128 19301757
    AlaratH
    Level 10  
    Hello
    SUN 2000 M1 inverter
    During configuration, when choosing wifi, I cannot enter the password. I only choose the network and it is on, of course it does not connect. I only have the inscription under the network selection: the current method of connecting to the network is dangerous, change .., but nowhere do I see the possibility of changing the encryption.
  • #129 19302043
    rokbok
    Level 39  
    For me, there is a configuration screen as below, I do not know how it is with you.

    Huawei SUN2000 Inverter: WIFI Dongle Connection, Firmware Update & FusionSolar
  • #130 19302265
    lukkucz
    Level 9  
    The question is a bit different

    I have a SUN2000-5KTL-M0 inverter, panels power 4.74kWp - to what maximum value I can extend the installation. I know it will be one or two panels, but I mean a specific value.

    And the second thing I would like to have a preview like in the photo
    Huawei SUN2000 Inverter: WIFI Dongle Connection, Firmware Update & FusionSolar
    I mean the load, how much energy do I use, give back etc. Probably something needs to be built, but what and how it is already beyond me
  • #131 19302424
    dprzyb
    Level 22  
    You must have an energy meter in addition. The original one is Huawei DTSU666-H.
    Somewhere on the Electrode there was a topic with the replacements given ...

    Added after 1 [hours] 52 [minutes]:

    You can force some update if I do not have the "Software update" tab available in Fusion Solar, and after logging in to the inverter directly with the app, it shows me "no update"?
    At the moment I have SPC122 in inverter and SPC111 in donglu (SUN2000-4KTL-M0)
  • #132 19317700
    Math13
    Level 14  
    I have a problem and I count on your help as always.
    I accidentally clicked on the phone in wi-fi options, "forget network" for my connection to SUN2000-2050084xxxx
    Now there is no way I can connect to the inverter with FusionHome and SUN2000.
    I do not remember if I had to set the password personally during the first connection / installation or if it is a standard one.
    Password: "00000a" is not accepted because it is too short.
    What can the password be, or how to set a new one or recover the old one?

    Currently, I can log into the inverter with the FusionSolar app by entering my email and password
    Unfortunately, the above password is inappropriate to connect to the inverter via FusionHome or SUN2000.
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  • #133 19317808
    rokbok
    Level 39  
    Math13 wrote:
    I accidentally clicked on the phone in wi-fi options, "forget network" for my connection to SUN2000-2050084xxxx


    This means that you have deleted the password needed for connection, go to the inverter and turn on the WiFi scan on the phone, when your SUN2000-2050084xxxx inverter pops up, click on it and enter the password provided on the side of the inverter.

    Math13 wrote:
    Password: "00000a" is not accepted because it is too short.


    You use this password only when you have a visible inverter network on your phone and want to enter its options, of course, if someone has not changed this password before, the installer, maybe you.

    How to enter the inverter options I described earlier, page 2 of this thread, post # 32.
  • #134 19318111
    Math13
    Level 14  
    rokbok wrote:
    This means that you have deleted the password needed for connection, go to the inverter and turn on the WiFi scan on the phone, when your SUN2000-2050084xxxx inverter pops up, click on it and enter the password provided on the side of the inverter.


    Thanks. Managed to. The square code in no way wanted to read, but the password to the network was written in small letters. It worked.
    FusionHome works. :-)

    Out of curiosity, I also downloaded the SUN2000 app. On another thread of this form it was written that it also supposedly works with an inverter.
    Unfortunately, it does not work for me. When selecting "Connection mode" and selecting the last "WLAN connection", it takes you to the network selection screen. After selecting and accepting "SUN2000-HV20500xxxxx, it connects to it (as does FusionHome). But nothing else can be done, because this app stays in the network selection window and you can't go back to this SUN2000 window to enter other parameters ( ie "Common user" and enter "password").
    Anyone using the SUN2000 app with a Huawei inverter? Does it work for you?
  • #135 19318130
    rokbok
    Level 39  
    Math13 wrote:
    Anyone use a SUN2000 cap with a Huawei inverter? Does it work for you?


    It doesn't work for me either, it's better to install FusionHome, it's better to enter the inverter options than through FusionSolar.
  • #136 19318151
    Math13
    Level 14  
    rokbok wrote:
    Math13 wrote:
    Anyone use a SUN2000 cap with a Huawei inverter? Does it work for you?


    It doesn't work for me either, it's better to install FusionHome, it's better to enter the inverter options than through FusionSolar.


    Thanks. I also have both FusionHome and FusionSolar.
    You're right. At home, I actually enjoy FH better. I use FS only as an app to control and preview away from home.
  • #137 19319061
    dprzyb
    Level 22  
    dprzyb wrote:
    You can force some update if I do not have the "Software update" tab available in Fusion Solar, and after logging in to the inverter directly with the app, it shows me "no update"?
    At the moment I have SPC122 in inverter and SPC111 in donglu (SUN2000-4KTL-M0)


    Someone something?
  • #138 19319338
    domelek
    Level 17  
    dprzyb wrote:
    dprzyb wrote:
    You can force some update if I do not have the "Software update" tab available in Fusion Solar, and after logging in to the inverter directly with the app, it shows me "no update"?
    At the moment I have SPC122 in inverter and SPC111 in donglu (SUN2000-4KTL-M0)


    Someone something?

    See post 121, how do you have no update option, maybe you do not have permission?
  • #139 19319387
    dprzyb
    Level 22  
    Exactly. I do not have the option to update on the FusionSolar website, probably due to lack of permissions. Therefore, I am asking how to get around it.
    I have an update option in the app but I write that there is no newer version.
    Can you manually download this version of SPC133 from somewhere?
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  • #140 19319794
    rokbok
    Level 39  
    dprzyb wrote:
    Can you manually download this version of SPC133 from somewhere?


    Yes, from the huawei website, registration required, link below.

    https://support.huawei.com/enterprise/en/digital-power/sun2000ma-pid-22755755/software

    dprzyb wrote:
    after logging in directly to the inverter, the app shows me "no update"?
    Someone something?


    For me, there is an option to select the file manually, but you need to physically have it, e.g. on a smartphone, see below.

    Huawei SUN2000 Inverter: WIFI Dongle Connection, Firmware Update & FusionSolar
  • #141 19320558
    domelek
    Level 17  
    In the appendix to the 3-phase version:
    Applicable to SUN2000-3KTL-M0, SUN2000-4KTL-M0, SUN2000-5KTL-M0, SUN2000-6KTL-M0, SUN2000-8KTL-M0, SUN2000-10KTL-M0, SUN2000-12KTL-M0, SUN2000-15KTL-M0, SUN2000-17KTL-M0, SUN2000-20KTL-M0, SUN2000-3KTL-M1, SUN2000-4KTL-M1, SUN2000-5KTL-M1, SUN2000-6KTL-M1, SUN2000-8KTL-M1, SUN2000-10KTL-M1, SUN2000- 8KTL-M2, SUN2000-10KTL-M2, SUN2000-12KTL-M2, SUN2000-15KTL-M2, SUN2000-17KTL-M2, SUN2000-20KTL-M2
    Attachments:
  • #142 19320577
    rokbok
    Level 39  
    domelek wrote:
    In the appendix to the 3-phase version:


    You registered on the Huawei website, or the file in the attachment from another source, it is just out of curiosity whether it is worth registering there.
  • #143 19320584
    domelek
    Level 17  
    rokbok wrote:
    domelek wrote:
    In the appendix to the 3-phase version:


    You registered on the Huawei website, or the file in the attachment from another source, it is just out of curiosity whether it is worth registering there.


    The file straight from Huawei's website, the registration takes a while before they approve you, it took me about a week ...
  • #144 19321172
    Yahoou77
    Level 12  
    Math13 wrote:

    Anyone using the SUN2000 app with a Huawei inverter? Does it work for you?

    I use the SUN2000 app to support my SUN2000-5ktl-m1 and I really appreciate its performance. The only flaw is that it does not remember the login password and you have to stick your finger in it every time.

    And a question for installers who have the configuration of Huawei inverters at their fingertips:
    How should the parameter "PID operation mode" be optimally set (marked in the photo below)? There are two options: "disable" and "repair". I have a Sun2000-5ktl-m1 to which 2 chains (12 + 7) of JaSolar jam60s10-340 / mr panels are connected, without optimizers, because there is no risk of shading.
    By default, the installer has disabled this feature. Is this a good approach? If not, what are the benefits / inconveniences of changing this option to "repair"?
    I will be grateful for your response...
    Huawei SUN2000 Inverter: WIFI Dongle Connection, Firmware Update & FusionSolar
  • #145 19332357
    ŁukaszD
    Level 1  
    AlaratH wrote:
    Hello
    SUN 2000 M1 inverter
    During configuration, when choosing wifi, I cannot enter the password. I only choose the network and it is on, of course it does not connect. I only have the inscription under the network selection: the current method of connecting to the network is dangerous, change .., but nowhere do I see the possibility of changing the encryption.


    Hello. Did you manage to solve the problem you wrote about? I have the same, I cannot connect the SUN2000-6KTL-M1 inverter to the home WIFI network, there is no field to enter the password, and the information "the current method of connecting to the network is dangerous ...". After selecting a network from the list, it reaches 20% and throws an error. The same errors when trying to connect to another router and when using the TP-LINK TL-WA855RE repeater. If I connect the TP-LINK TL-WA855RE amplifier with the Dongle with a LAN cable, everything works fine. WIFI encryption is WPA / WPA2. Best regards.
  • #146 19334701
    robert14-83
    Level 11  
    For me, the power of the panels is 5.22kWp and the Huawei SUN2000-4KTL-M0 inverter. I noticed that in sunny weather, the maximum instantaneous gain is 4400W of the inverter output power. More will not "push out". Is it not capable of handling more power?
  • #147 19335372
    domelek
    Level 17  
    robert14-83 wrote:
    For me, the power of the panels is 5.22kWp and the Huawei SUN2000-4KTL-M0 inverter. I noticed that in sunny weather, the maximum instantaneous gain is 4400W of the inverter output power. More will not "push out". Is it not capable of handling more power?

    NO max is 4.4 at cos phi = 1
  • #148 19344399
    Domian456
    Level 2  
    Hello...
    This morning the Smart Dongle LED started flashing red ... So far, everything was ok ... Can't connect to the Internet ... I reset the router and nothing has any effect ...
    I can not enter the inverter settings because where is the password on the sticker next to the inverter ... Because I can not find ...
    Thank you in advance for your help...
  • #149 19344405
    topic_vw
    Level 11  
    A global problem, I think everyone has it. I'm used to these fucups now :)
  • #150 19344421
    Domian456
    Level 2  
    So what should I wait for it to graciously connect itself ... It is unknown when ...

    Added after 6 [minutes]:

    rokbok wrote:


    This means that you have deleted the password needed for connection, go to the inverter and turn on the WiFi scan on the phone, when your SUN2000-2050084xxxx inverter pops up, click on it and enter the password provided on the side of the inverter.

    Where is the password written on the sticker ... Or as signed ...
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Topic summary

The discussion centers on issues and configurations related to Huawei SUN2000 series inverters, particularly focusing on WiFi dongle connectivity, firmware updates, and the FusionSolar platform. Users report successful inverter commissioning and firmware updates but face persistent problems connecting the WiFi dongle, which often blinks red and appears offline in FusionSolar. A reliable workaround is connecting the dongle via Ethernet cable to the router. Changing WiFi network credentials requires logging directly into the inverter through FusionSolar or FusionHome apps, as remote password changes are not supported. Installer accounts have broader configuration permissions than owner accounts, which often restrict access to settings such as location, currency, and power configuration. The discussion also covers optimal network code selection (e.g., Germany-VDE-AR-N-4105 for Poland), MPPT multi-peak scanning settings for shadowed panels, and string capacity configuration aligning with physical panel connections. Users note that inverter startup voltage and MPPT voltage ranges affect minimum panel string length, with debates on using 140V or 240V for calculations. Firmware updates are available but may not always be visible to all users simultaneously; some recommend downgrading FusionSolar app versions to resolve login or configuration issues. The FusionSolar platform's interface and permissions can be non-intuitive, with some users unable to modify installation parameters without installer access. Additional topics include inverter automatic shutdown due to high grid voltage, anti-PID function requiring external devices, and integration with Huawei DTSU666-H smart meters, which are often auto-detected. Overall, the thread provides practical advice on inverter setup, network configuration, firmware management, and troubleshooting communication issues with Huawei SUN2000 inverters and associated software tools.
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