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Denarius

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  1. Like
    Denarius got a reaction from mzezman in Do I have to remove "solar-assistant" to run the Nodered environment?   
    I noticed in the latest solar assistant beta they have started adding the ability to change inverter settings:
    https://solar-assistant.io/help/home-assistant/adjust-settings
    I've started playing with the home assistant automations and it does cater for everything I wanted to do.  To some extent it reduces the need for node red.  With home assistant I can also build custom dashboards that combine solar assistant data with data from other devices.
    Seems like solar assistant features are available first to voltronic/axpert inverters then afterwards for deye/sunsynk.
  2. Like
    Denarius got a reaction from Nate in SunSynk - Inverter Monitoring   
    Has anyone managed to write a modbus registers to the SunSynk 3 phase inverter?  Whenever I write to it, it gives a success response, but the change doesn't take affect, if I read the same register right afterwards, it's still the old value.  I've tried writing any register but none work. Note the 3 phase is different than the other inverters as the data stored in the modbus registers differ from what is posted in this topic.
  3. Like
    Denarius got a reaction from 87 Dream in Free solar monitoring device - Voltronic inverters   
    I had the same issue. See this page: https://solar-assistant.io/shop/products/micro_usb

  4. Thanks
    Denarius got a reaction from isetech in Free solar monitoring device - Voltronic inverters   
    @isetech Home assistant will require it's own Pi and SD card.  You run hass.io which is an operating system, you can't run Raspberry Pi Desktop or any other OS together with hass.io.  There are technically ways that you can run home assistant without hass.io on Raspberry Pi Desktop, but if you are a new user it's probably not a good idea.
    Solar assistant is similar to home assistant meaning it's an operating system and not an application you run within Raspberry Pi Desktop.  Both hass.io and Solar assistant is used as a network device, you don't plug in a screen, keyboard, mouse into it.
    I'm mentioning all of this because it sounds like you were expecting Raspberry Pi Desktop where you install home assistant and solar assistant, which is not true for either apps.
  5. Like
    Denarius got a reaction from Energy-Jason in Sunsynk- Solarman app updating data slowly   
    Slow intermittent data is not due to inverter, it's due to solarman monitoring device. There are other options that are real time up to the second, stores years of data on device and doesn't require internet to access it:
    https://solar-assistant.io
  6. Like
    Denarius got a reaction from PurePower in Pylontech US3000c   
    Check your RS232 console port.  If it looks like a phone line you have an A or B. If it looks like a network port you have C.
  7. Thanks
    Denarius got a reaction from AntonDj in Axpert 5K - Pylontech US3000   
    With ICC or SolarAssistant you will basically ignore the inverter state of charge and just look at what the app reports. It won't solve the charging issue, that should be charge voltage settings as mentioned. It will solve switching between battery/grid:
    https://solar-assistant.io/help/power_management/axpert
  8. Like
    Denarius got a reaction from GVC in Pylontech vs Hubble   
    I bought my Pylontechs due to the empiric evidence of this report a few years ago.  Would love to see a South African battery dominate that report.
  9. Thanks
    Denarius got a reaction from FixAMess in Pylontech vs Hubble   
    I bought my Pylontechs due to the empiric evidence of this report a few years ago.  Would love to see a South African battery dominate that report.
  10. Thanks
    Denarius got a reaction from JohanDbn in ICC software ends inadvertently   
    I've tried both. It's practically the same software.  It's two partners that split up and each is now selling it separately.  Since they split up, each have made their own changes to it.
  11. Thanks
    Denarius got a reaction from Jaco P Bloem in Axpert MKS II firmware - 71.82 - August 2020   
    I've flashed my 2x Axpert MKS II inverters with the latest firmware (71.82).  I've attached the firmware to this post for interest sake.  Whatever you do with it is at your own risk.
    I used this cable and it worked the first time on both. Note this cable goes from your computer to the serial cable that came with the inverter (see picture):
    https://www.takealot.com/ce-link-usb-2-0-to-rs232-db9-serial-male-a-2m-cable/PLID51855970
    The inverters remained connected via parallel cable during upgrade.  I turned one on and the other off, which sets the one turned on to master.  I then flashed the master.  Did the same to the other one.  Note sure if this process made any difference I'm just posting it anyway.
    Mostly followed the instructions from @Coulomb from this link. Didn't reset all settings with watchpower afterwards. Note files on this link should NOT be used with MKS II, the instruction is just the same: https://forums.aeva.asn.au/viewtopic.php?title=pip4048ms-inverter&p=64096&t=4332#p64096
    Note it seems like the MKS II doesn't have SCC firmware to upgrade.  On the inverter display I can see the inverter version (U1) but scrolling up or down doesn't show a SCC version (U2).
     


    MKS II Firmware 71 82.zip
  12. Thanks
    Denarius got a reaction from Coulomb in Axpert MKS II firmware - 71.82 - August 2020   
    @Jaco P Bloem I have 9x 340W in serie per inverter.  My PV voltage generally goes between 310V and 390V.  What do you have?

    Feedback in terms of the upgrade: I can confirm that my problem has 90% been solved at the cost of 5% less PV generation.  As far as I can tell the inverter now tries to squeze out less power from the panels, but is much more stable.  The PV voltage doesn't have sudden drops and my AC out doesn't drop below 220V, where it previously dropped to 190V.  There is another forum topic where a user also reported less PV generation when upgrading from 71.70 to 71.80.  I've upgraded from 71.71 to 71.82.  I think the big change came when going to the next major version 80.
    When looking at the chart below, pay attention to where the blue and yellow lines meet, at those points the voltage tended to become unstable and then the yellow and blue sticks to each other for larger periods by getting stuck in the unstable state.
    Before:

     
    After: At the one point just before 12pm I increased the load slightly on purpose to see what it does when PV generation and load is equal.  It became slightly unstable but output voltage remained above 220V.

  13. Like
    Denarius got a reaction from Coulomb in Axpert King not Using Solar correctly   
    @Blowdart18 This table from geyserwise is pretty good as a reference for how much difference there is between the months.  Don't mind what the actual value is in this table, just calculate the percentage relative to the best summer month, then do the math to predict what you will get in that month based on what you currently get.
    https://www.geyserwise.com/wp-content/uploads/2016/03/0207_PV-system-installation-manual_web.2016March09.pdf

  14. Thanks
    Denarius got a reaction from Coulomb in Axpert MKS II firmware - 71.82 - August 2020   
    I've flashed my 2x Axpert MKS II inverters with the latest firmware (71.82).  I've attached the firmware to this post for interest sake.  Whatever you do with it is at your own risk.
    I used this cable and it worked the first time on both. Note this cable goes from your computer to the serial cable that came with the inverter (see picture):
    https://www.takealot.com/ce-link-usb-2-0-to-rs232-db9-serial-male-a-2m-cable/PLID51855970
    The inverters remained connected via parallel cable during upgrade.  I turned one on and the other off, which sets the one turned on to master.  I then flashed the master.  Did the same to the other one.  Note sure if this process made any difference I'm just posting it anyway.
    Mostly followed the instructions from @Coulomb from this link. Didn't reset all settings with watchpower afterwards. Note files on this link should NOT be used with MKS II, the instruction is just the same: https://forums.aeva.asn.au/viewtopic.php?title=pip4048ms-inverter&p=64096&t=4332#p64096
    Note it seems like the MKS II doesn't have SCC firmware to upgrade.  On the inverter display I can see the inverter version (U1) but scrolling up or down doesn't show a SCC version (U2).
     


    MKS II Firmware 71 82.zip
  15. Like
    Denarius got a reaction from Youda in Fact check: Axpert/King vs Victron video   
    I recently saw this video on youtube which I don't agree with.  I'm going to post it here so that it can be debated in public.
    1) Incorrect: The Axpert inverter can only use battery voltage, not state of charge (SOC).
    The battery in the video looks like a PylonTech lithium battery.  Historically Axperts couldn't read the SOC, but this has been added, example:
    https://www.enway.co.za/axpert-pylontech-communication-cable-rj45-rs485-bms 

    2) The whole premise of the video seems to be that with the Axpert you need a separate grid tie inverter to have a proper setup.  This logic is flawed, the reason is different for the various Axperts:
    Axpert king: There is a Solar/Utility/Battery (SUB) mode which means the load is firstly provided by a blend of solar and utility, only if utility is not present it switches to a solar battery blend.  So for Axpert King the logic of (2) above is just outright wrong.
    Most other Axperts: It works with a simple mechanism: it runs on Solar/Battery which means if solar isn't enough, the battery is discharged.  Once the battery is lowered to a configured SOC point, the entire load is switched to grid while all solar charges the battery, so no energy is lost.  Once a higher SOC is achieved, the whole load switches back to Solar/Battery.  No need for a separate grid tie inverter.  In his previous video he mentions that a battery could partially solve the problem, when in fact if you don't have a battery the problem doesn't exist at all.  The Axpert MKS II can blend grid and solar if no battery is present, heck it can even run without grid or battery. 
     
    My conclusion: Yes Victron is generally better quaility, but this video just spreads misinformation around non-existent limitations of Axpert inverters.  Presumably greenpro is biased towards Victron and is trying to find strong reasons why it's better.  These reasons were there in the past but are disappearing over time as Voltronics improve their products.  This is the story of almost the entire electronics industry: the Chinese products are much cheaper and is slowly but surely closing the gap on quality and features, each year there is less reason to buy the more expensive non-Chinese product.  Think iPhone, Samsung, etc. desperately trying to find reasons why their products are still better than the cheap Chinese phones because they will never be able to halve the price to be able to compete on price.
     
     
  16. Like
    Denarius got a reaction from Jatho in My DIY Home Automation   
    For PylonTech I think we can extract code from the repository below.  I'm currently running ICC but I'm thinking of developing something open source that supports axpert and pylon techs, has a small control panel and can submit data via MQTT to home assistant or smart things.  Then people don't have to pay 3k+ for ICC which becomes unresponsive in various situations.
    https://github.com/celsworth/lxp-pylon-utils
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