logo elektroda
logo elektroda
X
logo elektroda
Advanced Search
logo elektroda

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

Bob271 377316 1361
ADVERTISEMENT
Treść została przetłumaczona polish » english Zobacz oryginalną wersję tematu
Reply | New topic
  • #241 19536651
    rokbok
    Level 38  
    dprzyb wrote:
    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


    Yes, only these two strings connected in series with the inverter are connected in parallel, and I described a mistake made when there are people who think that a series is a series ;) .
  • ADVERTISEMENT
  • #242 19538129
    mariusz.lubicz
    Level 24  
    It works very nicely to operate the inverter via RS485. I once asked about this here. I have a 10kW inverter in the Chinese version from a private import and it was normally possible to access it in its wifi with the password a00000 and there are no locks on anything inside. I set all the parameters according to the PDF of the manual and programmed myself the RS485. No internet communication is required. The firmware can be uploaded from a file via an app that connects via wifi. You only need to come within range of the inverter. Everything is available via RS485, including the correction of reactive power according to demand. If you have the skills and the desire, I recommend buying an ETH/RS485 converter and writing your own programme. There is nothing better.

    As for strings and how to connect them. You have a Voc voltage written on the panels, e.g. 49V and you have a short circuit current of e.g. 10A. The inverter has a max input voltage and max input current. You cannot exceed this. You need to leave a voltage reserve for the type of protectors you use. For example, you give them 1000V, the inverter has a max Vin of 1100 or 1200, and the panels only go up to 800V, well maybe a bit more up to 900V. But if you have panels giving 10A short-circuit, you must not connect them in parallel to an input which has 15A Imax. You have to plan your installation and buy such panels to use the inverter so that the voltage is as high as possible within the range specified in the technical documentation.
  • #244 19541183
    mariusz.lubicz
    Level 24  
    I didn't set it up, I don't even know where it is. I chose only international power or something like that, the app in English and it was 50Hz 253V and I only chose where PID repair is set, panel type and that's it. I left the rest at default. I checked the registers with the manual and it looks like you don't need to set anything else. Works well. The voltage does not go more than 245V on the inverter, so there is a reserve. There is 3V less on the connector as it lights up to the maximum due to the voltage drop on the cable from the inverter to the connector, with a total of 100m, maybe less.
    The choice of the types of electric networks was not there. We are talking about the M0 version the Chinese version.
  • #245 19541711
    domelek
    Level 17  
    kravat3 wrote:
    I am asking for precise parameters for this characteristic. In my Chinese, I had to type everything by hand to comply with the norm, and it's hard to read from a drawing.

    For example, according to Tauron, it should look like this: Huawei SUN2000 Inverter: WIFI Dongle Connection, Firmware Update & FusionSolar

    The Q / S value is the value of sin (phi) - 0.45 corresponds to a shift angle of about 26/27 degrees - cos (phi) for 26/27 - that's 0.9 in your case, you only need to change the U / Un values
  • #246 19542747
    mariusz.lubicz
    Level 24  
    Ha, you see a person learns all his life :-) I also corrected it and it is wider for cosine = 1.
  • ADVERTISEMENT
  • #247 19544656
    JackRze
    Level 8  
    Can I reset the password for the inverter? sun2000. From time to time my wifi connection crashes and I have to reconnect - probably poor coverage despite the amplifier. Since yesterday I have not been able to connect - I get the wrong password. I restarted the router, inverter - nothing helps. I'm connecting to the app, but the device is offline. I have the password saved in my notebook, so it's a bit strange - has it changed by itself? Is it even possible?

    There is no password on the sticker on the inverter, only a blank space
  • #248 19544673
    kravat3
    Level 10  
    domelek wrote:
    kravat3 wrote:
    I am asking for precise parameters for this characteristic. In my Chinese, I had to type everything by hand to comply with the norm, and it's hard to read from a drawing.

    For example, according to Tauron, it should look like this: Huawei SUN2000 Inverter: WIFI Dongle Connection, Firmware Update & FusionSolar

    The Q / S value is the value of sin (phi) - 0.45 corresponds to a shift angle of about 26/27 degrees - cos (phi) for 26/27 - that's 0.9 in your case, you only need to change the U / Un values


    Well, I'm just under the Tauron, and I also got the parameters from the settings for the German network, and it's set up completely different there. The second thing that worries me is yesterday the inverter showed the current on the western string over 11A, where for my 375W longs the current at maximum power is 10.84A, and the short-circuit current is 11.6A. Can electricity also be limited in the settings?
    Attachments:
  • ADVERTISEMENT
  • #249 19544874
    mariusz.lubicz
    Level 24  
    There is probably no need, this inverter has Isc 15A, and these plus or minus a few% from the nominal value of 11A can be left. It is with me Huawei SUN2000 Inverter: WIFI Dongle Connection, Firmware Update & FusionSolar
    Huawei SUN2000 Inverter: WIFI Dongle Connection, Firmware Update & FusionSolar

    You will not exceed the Isc 15A, give the 11A fuse on the DC side and even if the supernova illuminates it, it will blow the fuse at most, but I doubt it. If they burn out, give 1A more, e.g. 12A.
    Secondly, if the panels are new, it may be so, but they will weaken in 2 months and the problem will disappear by itself. When buying panels, you must always choose the inverter so that the current is a bit lower than the inverter input, but on the other hand, that there is a relatively high voltage. You have to strive for the Voc to be at least 600V, I have more. Protection for 1000V and 1100V input
    This total Voc of the panels is important because when the panels are lit with full sun and produce as much as the factory gave and suddenly 400V disappears from the grid, the panels will suddenly supply full Voc voltage to the input of the inverter. And the point is not to break through.

    In our inverters we have inputs for 1100V, so we give protection lower to 1000V, and strings with a voltage of no more than 900V Voc, but you also need to count the total power of the panels, their voltages, and so on.
  • #250 19577364
    domelek
    Level 17  
    Jest nowy firmware dla falownika wersja 136.

    3.1 Update notes in this version
    3.1.1 What's New in Features
    New Features
    1. Added the alarm of energy storage version inconsistency.
    2. Supports paralleling of M1 and M3 models.
    Modified Features
    1. Allows the battery to charge in case of off-grid overload or short circuit.
    Deleted Features
    NA.
    Optimized Features
    1. The active power percentage derating is displayed as the maximum value in
    some scenarios.
    2. Optimized the offline startup self-check logic in some scenarios.
    Attachments:
  • #251 19584865
    tomiapage
    Level 1  
    Hello, at a friend's place, we have a problem with connecting the inverter to wifi from the router. Device SUN2000-4ktl-m0 only detects the wifi network from the attached dongle. We want to set the login and password for his home wifi because after the storm he stopped displaying data in the mobile app. The front panel of the device has 3 LEDs with a steady green light. Doesn't detect the inverter wifi. On the side of the device there is wifi: sun2000 ... but it doesn't detect it to configure it. It was constant after the power failure. What can I do? Do you have any ideas?
  • #252 19630772
    MisiekDPx
    Level 11  
    domelek wrote:
    Jest nowy firmware dla falownika wersja 136.

    3.1 Update notes in this version
    3.1.1 What's New in Features
    New Features
    1. Added the alarm of energy storage version inconsistency.
    2. Supports paralleling of M1 and M3 models.
    Modified Features
    1. Allows the battery to charge in case of off-grid overload or short circuit.
    Deleted Features
    NA.
    Optimized Features
    1. The active power percentage derating is displayed as the maximum value in
    some scenarios.
    2. Optimized the offline startup self-check logic in some scenarios.
    Jak wgrać takie oprogramowanie w ogóle? 🤔
  • #253 19631097
    domelek
    Level 17  
    MisiekDPx wrote:
    domelek wrote:
    There is a new firmware for the inverter version 136.

    3.1 Update notes in this version
    3.1.1 What's New in Features
    New Features
    1. Added the alarm of energy storage version inconsistency.
    2. Supports paralleling of M1 and M3 models.
    Modified Features
    1. Allows the battery to charge in case of off-grid overload or short circuit.
    Deleted Features
    ON.
    Optimized Features
    1. The active power percentage derating is displayed as the maximum value in
    some scenarios.
    2. Optimized the offline startup self-check logic in some scenarios.
    How to upload such software at all? ?

    If you have an installer account, it is via www. If not, through the Fusionhome app - here you need to have the dafault installer code is 00000a and the firmware files (how can I send something). But the most convenient way is via the website, there you can update the inverter and dongle remotely - only do it during the day ;)
  • #254 19631105
    decklen
    Level 13  
    And what is the latest soft in donglu and if you can ask for the newest one because I do not have the rank of installer and I do it from the app.
  • #255 19634514
    mariusz.lubicz
    Level 24  
    And did they change your wifi password for that built-in? If they took your rights to your own equipment, it's a bastard.
  • #256 19634518
    MisiekDPx
    Level 11  
    And how to check if they have taken away the rights to the equipment? For inside WiFi I know I can connect, but is anything else required?
  • #257 19634793
    rokbok
    Level 38  
    MisiekDPx wrote:
    And how to check if they have taken away the rights to the equipment?


    Try to log in to the inverter using the SUN2000 app, the factory default password is 00000a, if you log in, the password has not been changed by the installer, if not, ask the installer for a new password.

    I assume that the installer introduced your WiFi network to the inverter, to log in to it as described above, you must be within the range of this WiFi.
  • #258 19634814
    MisiekDPx
    Level 11  
    rokbok wrote:
    MisiekDPx wrote:
    And how to check if they have taken away the rights to the equipment?


    Try to log in to the inverter using the SUN2000 app, the factory default password is 00000a, if you log in, the password has not been changed by the installer, if not, ask the installer for a new password.

    I assume that the installer introduced your WiFi network to the inverter, to log in to it as described above, you must be within the range of this WiFi.
    Hmm ... I haven't checked with the app, but will I not delete any settings when logging in?
    I also know that I can definitely connect my WiFi to the inverter WiFi (directly) and read data via Modbus TCP. But I don't remember if any password was required there ... In general, the installer put a Huawei dongle on me and the dongle connected to my WiFi.
  • #259 19634839
    rokbok
    Level 38  
    MisiekDPx wrote:
    Hmm ... I haven't checked with the app, but will I not delete any settings when logging in?


    You will not delete anything there, to change a parameter, you would have to select it, change its value and finally confirm it, so that no worries, just browsing you will not do anything ;) .
  • ADVERTISEMENT
  • #260 19634841
    MisiekDPx
    Level 11  
    rokbok wrote:
    MisiekDPx wrote:
    Hmm ... I haven't checked with the app, but will I not delete any settings when logging in?


    You will not delete anything there, to change a parameter, you would have to select it, change its value and finally confirm it, so that no worries, just browsing you will not do anything ;) .
    And the installer will not see that something was buried? ? So that later there would be no excuse to "lose the warranty" ?
  • #261 19634898
    rokbok
    Level 38  
    You will not lose any warranty, you want to check, check if you consciously change any parameters, then if you know what you are doing, it's okay, otherwise do not change anything that affects the operation of the inverter / installation without consulting the installer.
  • #262 19636226
    szczukot
    Level 14  
    I don't really get it.
    Why does it have to be on some installer account?
    Why can't I create an installer account myself and attach to it?
    Am I losing any guarantees or what?
    After all, there is a 10-year warranty for the equipment. Today, the installer may be on the market, and in a year, maybe the fireplace wood will be selling and not knowing anything about any of its installer accounts. And we completely lose access to it.
  • #263 19636271
    rokbok
    Level 38  
    szczukot wrote:
    Why can't I create an installer account myself and attach to it?


    You can, but when installing PV, you have to tell the installer not to create an account for you, then you do it yourself, after entering the S / N number of the inverter and your e-mail address into the Huawei system / cloud, it is not possible to register an account again for this data.
  • #264 19636323
    szczukot
    Level 14  
    Can I now transfer the inverter to my account? The installer has to remove it at home and then I can add it at home?
  • #265 19636492
    rokbok
    Level 38  
    The installer would have to completely remove the S / N of the inverter and the email address from the Huawei system / cloud, otherwise you will not create an installer account for this data.
    While there is no problem with the e-mail address, because you can create a new one, you will not change the S / N of the inverter, so it must disappear from their system.
  • #266 19637216
    mariusz.lubicz
    Level 24  
    szczukot wrote:
    Why does it have to be on some installer account?


    So that he can delete you for every attempt to change anything, even if you change your wifi, the inverter will no longer connect to the new network and you will have to pay the installer for the changes. So I say it's a bastard. Connect to the inverter wifi like AP and login to sun2000.
  • #267 19637492
    MisiekDPx
    Level 11  
    rokbok wrote:
    You will not lose any warranty, you want to check, check if you consciously change any parameters, then if you know what you are doing, it's okay, otherwise do not change anything that affects the operation of the inverter / installation without consulting the installer.
    I checked some time ago and through the SUN2000 application I can enter with the default password. The only problem is that the message that the old version of the software is popping up and I need to update to be able to do anything. Well, now I am thinking, can the update affect the warranty? Will the installer see that something has been updated? And is this software downloaded "live" from the web or is there already a software file in the application?
  • #268 19637517
    rokbok
    Level 38  
    MisiekDPx wrote:
    Well, now I am thinking, can the update affect the warranty?


    After all, this is a Huwei update, and he is also a guarantor of how you would void your warranty.

    MisiekDPx wrote:
    Will the installer see that something has been updated?


    Even if he knew it has nothing to do with it, the update will be made from an official source.

    MisiekDPx wrote:
    And is this software downloaded "live" from the web or is there already a software file in the application?


    Just approve the update and wait for it to finish.
  • #269 19637525
    MisiekDPx
    Level 11  
    rokbok wrote:
    MisiekDPx wrote:
    Well, now I am thinking, can the update affect the warranty?


    After all, this is a Huwei update, and he is also a guarantor of how you would void your warranty.

    MisiekDPx wrote:
    Will the installer see that something has been updated?


    Even if he knew it has nothing to do with it, the update will be made from an official source.

    MisiekDPx wrote:
    And is this software downloaded "live" from the web or is there already a software file in the application?


    Just approve the update and wait for it to finish.
    Right, right, I agree with everything. This is.
    And for the update, I ask if it downloads something from the Internet, because I have a very poor range there, and the inverter is in the room, so it additionally suppresses the range. And there is also the risk of disconnecting from the cellular network.
    You know, if the file was locally with the application, the application would just send the file to the inverter without downloading it.
  • #270 19637533
    rokbok
    Level 38  
    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.
Reply | New topic
Report a violation of the law

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.
Summary generated by the language model.
ADVERTISEMENT