Skip to content
View in the app

A better way to browse. Learn more.

Power Forum - Renewable Energy Discussion

A full-screen app on your home screen with push notifications, badges and more.

To install this app on iOS and iPadOS
  1. Tap the Share icon in Safari
  2. Scroll the menu and tap Add to Home Screen.
  3. Tap Add in the top-right corner.
To install this app on Android
  1. Tap the 3-dot menu (⋮) in the top-right corner of the browser.
  2. Tap Add to Home screen or Install app.
  3. Confirm by tapping Install.

Inverters

Off Grid & Grid Tie inverters

  1. Started by Dean K,

    My Kodak inverter WMIII 5Kw 48v will not charge my battery from generator unless the inverter is switched off, while suppling power Via battery or PV's it shows generator is running but does not supply power to AC or charge battery. Basically I'm running the generator for nothing, tried all different settings given by tech but no change. Any ideas appreciated.

  2. Good day, I want to setup a grid tie solar system with a phase 2 backup with victron multiplus 2. Long term in trying to achieve what is described here: https://www.victronenergy.com/media/pg/Energy_Storage_System/en/ess-introduction---features.html now there is lots of talk about fronious and SMA grid tie inverters which are extremely expensive in SA. My question, is there anyway to use a SOLS or any other grid tie brand for that matter, with the multipus 2 inverter to achieve the same results? I saw a small statement somehwere that you can buy the victron POWER meter, and put that between the grid tie and the multi plus, then that power meter will talk…

  3. Started by Eckart,

    I installed a Axpert 5 kVA Mk II inverter and have a problem with the output frequency, which shows to be 40 Hz + 1. There is no setting to address this. The alarm also beeps continuously but the red alarm light does not show. The center top of the display shows H5. Can anyone help to correct this situation. The rest of the solar power installation seems to work very well, with batteries charging and utility being off, the load feeds off the system.

    • 3 replies
    • 1.3k views
  4. Started by Kalito,

    I attempted to upgrade my 5KVA (4kW) Mecer with the patched firmware. I discovered an old USB to serial adapter in my stuff. Windows could not recognize it properly (something to do with counterfeit chipset or the sort from some net reading) but I got a driver fix and the thing was recognized. I am running Win10. However, after the about 30sec wait after clicking on update I got an error that Serial Port failed to open. This is despite the display showing that the port was opened. Is my adapter too ancient to work or maybe its a known issue? I tried different COM ports same result. I will try to get my hands on a more modern adapter and see what happens.

  5. Started by CM21,

    Hi all I recently upgraded my inverter to Voltronics off grid VMIII model and added a pylontech battery. I already have 6x 335watts panels connected in series to both charge the battery and power the loads. Grid is used as a last backup on days of bad weather. What i have noticed is that during the day, Inverter is drawing from batteries instead of solar panels. output priorty is set as SBU. I have tried to change to SUB but still the inverter prioritises utility to power loads even when Solar power is availale. Is there anyway of working around this?

  6. Started by Lazarus,

    Hi Someone advised me to connect 3 strings of 4 panels each in series then parallel. my inverter fault (13) comes on. Is this the incorrect way to wire up. Fault is there even when i unplug two strings? what is recommended to wire up the panels on this inverter? Current set up 12 x 335watt panels 48 volt battery set up.

  7. Good day all, I have a voltex 12v 1kVa inverter that seems fully functional except the battery is not being charged while mains is available. The negative wire from the secondary winding of the charging circuit was loose and could have made contact with the PV +ve terminal (See circled lug in attached picture) There does not seem to be a soft start psu,even if there was,it would appear to be working as the LCD shows normal display with a flashing green charge LED(not sure if that is normal) Fault LED not lit. The system psu seems to be at top right of PCB(circled) has output voltage and the SMD 7805 output voltage is stable. Checked the rect…

    • 2 replies
    • 2k views
  8. I have an off grid solar system with VMIII: 16 x 340W solar panels (North-West) - 2 strings of 8 panels each 4 x US3000 Pylontech I am missing out on some good sun in the early morning, which I want to capture as follows: Add another US3000 to the existing VMIII Add another VMIII or King with solar panels connected from the rooftop which gets son in the early morning. This new VMIII or King would then have its AC output permanently wired to the grid input of the existing VMIII which would be set to charge from utility and solar. I can have the new VMIII or King run from an old lead acid or no battery, I only want it to send solar po…

  9. Started by BikerBrad,

    I recently purchased 3 x180w panels and a12V / 40A mppt controller from a supplier who assured my that exerything was compatable. I did the install myself. I knew the mppt was limited to 100v input. Wired the panels in series, connected the panels to mppt and was shocked to see 120v input and immediately disconnected the panels. Sadly mppt was tested and was reported as blown. Is it possible to repair the mppt ? Who would be to blame as I was assured that the panels and mppt were compatable ?

    • 3 replies
    • 2k views
  10. Started by Speckled Jim,

    I have a solar-battery system and pure sinewave inverter which runs basic lights ie. led tubes. I find that the led lights flicker even when turned off (inverter is working with a minor load). Appreciate any advice, thanks. SJ

    • 1 reply
    • 844 views
  11. Hi All i need help, none of the solar installers or Generator Suppliers seems to be able to solve my problem. I have tried with the Axpert MKS / MKS II / Axpert King and Recently the Axpert Infini VIII inverters all fully offgrid. No AC input from Eskom. only solar panels and Generator They are connected to a bank of Pylontech us2000b Batteries and i have a 6kw Diesel Generator from Bundu Power connected with some kind of small AC filter fitted I need the Generator to just charge or top up my Pylontech Batteries during rainy day`s but when the generator is started i can see the inverter detecting the AC input from the generator at 49-50hz 230-240v. As…

  12. Hi, I have a VMIII and I need to update the removable screen firmware to a version that supports "LiB". This is according to the supplier what is required for the VMIII to communicate with Giter batteries. I see "LiB" has been remove in the latest removable screen firmware. My firmware is however old. U1: 41.14 U2: 02.40 (Can I update this to 02.49, using the below while keeping U1: 41.14) U3: 00.24 Is it possible to flash the removable screen with a USB cable only or do you need RJ45 serial? @Coulomb

  13. Hi. I have a Quattro with MPPT 150/85s, CCGX and BMV702. When I was using other equipment (Voltronic Axperts) I fed all generation and usage statistics to pvoutput.org which is a great way to monitor installations year to year and long term. Is there an easy way to feed statistics from my Victron installation to pvoutput.org. If it is very technical I will need a detailed explanation of the steps. I can't programme. Wasn't sure whether to put this here or in "The Internet of Things".

    • 18 replies
    • 5.3k views
  14. Started by Tariq,

    last night, when grid fell away due to load shedding, Smart Load switched on, even though the solar threshold was set at 2200 watts, although soc was within the parameters set for switching on, this does not happen when grid is present, as both conditions have to be met, anyone else experiencing this behavior.

  15. Hi Everyone I have an Axpert/Kodak MAX OG7.2 Inverter, KODAK FL5.2 Battery unit with 6 x Canadian Solar 330w Panels currently installed and working. I managed to setup the Watchpower app to connect to the Inverter successfully on the day of the install 4 days ago. But now, my Data Log shows offline. I can edit any of the Inverter settings via the Watchpower app, but I cannot see any logged information on the app or online. Any Idea on what may be wrong?

    • 1 reply
    • 1.6k views
  16. Hi, I'm pretty new to this solar thing. I'm thinking of getting this inverter: RCT Axpert MKSII 5KVA/5KW Inverter 48VDC 4500W 450VDC MPPT But I'm on a budget, so what is the minimum solar array I can hook up to it? And how do I figure that out. I'm under the impression that these types of inverters have a minimum that they need to operate. I won't be using batteries but will by grid tied.

    • 9 replies
    • 3k views
  17. Started by Bobster.,

    I am getting a steady stream of these. They always start after SOC has reached 100% IE I never get them when the battery is charging. Looking at the history, they stop as PV becomes trivial at around16:00. The temperatures shown range from 31 to 48, so I'm not sure temperature is the driver. Should I worry?

    • 3 replies
    • 1.1k views
  18. Started by Adriaan.S,

    Hi All, I am rather new to the forum and this is my first post. I have a SuSynk 5kW, 48Vdc inverter with lead acid batteries which I recently installed. After start-up I received an alarm/fault code, F56 DC_VoltLow_Fault. The alarm does not want to clear, on the front display panel it is showing the SOC as 73%. I also checked the voltage of the batteries with a multi-meter, 50V. The current battery set-up worked perfectly on a previous Elllies inverter. I am also not sure if it is a battery fault, my logic tells me it will show low battery voltage and why give a constant alarm? If the batteries are low it should only try to charge the batteries and not give a constan…

  19. Started by MartinKoch,

    This relates to the previous question but just from a different angle, if I set the 01 parameter to UTI at 7 pm, charge batteries from 80% to fully charged, then set parameter back to SBU in order to start the next morning, washing machine and so forth with enough power to avoid grid charging, question is, does it matter if I change the parameters regularly or is it bad for the inverter?

    • 2 replies
    • 1.2k views
  20. Started by Mnr DC,

    Good day all. We have just Finnished installing 'n Sunsynk Inverter with 2 x AM2 Hubble batteries. When we switch everything on, the inverter keeps on switching between the grid and the batteries. What could be the cause of this? I am new to the installation of inverter. Thank you.

    • 1 reply
    • 828 views
  21. Hi I tried to connect my Axpert King 5kW via micro USB cable to raspberry PI computer USB port and found screen went completely black immediately Linux on PI in dmesg [ 691.585744] usb usb2-port1: over-current change #4 [ 691.734993] usb 1-1-port1: over-current change #4 [ 691.798610] usb usb2-port2: over-current change #4 [ 691.954955] usb 1-1-port2: over-current change #4 [ 692.014637] usb usb2-port3: over-current change #3 [ 692.178964] usb 1-1-port3: over-current change #3 [ 692.234585] usb usb2-port4: over-current change #3 [ 692.399057] usb 1-1-port4: over-current change #3 [ 692.454588] usb usb2-port1: over-current change #5 [ …

  22. Started by Marty,

    Pleas can I have some advice I have a solis 2kw grid tied inveter AC coupled to a 2kva Multiplus There are 5 x 285 watt panels connected I am getting this error every time I power up. OV-G-F02 "over grid frequency" Any ideas?

    • 0 replies
    • 1.1k views
  23. Started by smurfdbn,

    Hi All, Weather intervention blew Ethernet Port on my CCGX. Have installed new one, firmware updated, all configs done. Linked new CCGX in VRM under my account and went thru the sequence of replacing CCGX on my existing installation, rebooted CCGX etc - doesn’t seem to have worked New install hasn’t been linked to my old installation and all updates are only showing on the new install, no historical data. The VRM id on my old install looks “odd” in that it has additional explanatory text…? “fxxxxxxxxxxxx - USEDASREPLACEMENT” Anyone have any insights Thanks

  24. Started by CR Fourways,

    Hi, we had a hybrid system installed a couple of weeks ago by an installer. Sunsynk 5kva inverter and I am trying to find out more about how set up the inverter to push excess PV power to the DB board (during the day) to power the geyser for instance. Is there a setting on the inverter or is it an electricians expertise required? The installer wasn't to knowledgeable about this inverter unfortunately and trying to get him back, usual story. Thanks to this forum I have been able to find out alot to set up the inverter for its maximum use. Thanks in advance for any advice. CR

    • 3 replies
    • 1.3k views
  25. Started by TheBiscuit87,

    Hi all, I am new to the whole solar thing. I have been searching for the 69 error and found a few topics informing you to update the firmware but I am nor sure how to find it. Secondly what exactly does the bypass on the picture mean and what would the best settings be for a OG5.48 kodak system with 12 385w panels and 3 pylontech 3000c batteries be?

Account

Navigation

Search

Search

Configure browser push notifications

Chrome (Android)
  1. Tap the lock icon next to the address bar.
  2. Tap Permissions → Notifications.
  3. Adjust your preference.
Chrome (Desktop)
  1. Click the padlock icon in the address bar.
  2. Select Site settings.
  3. Find Notifications and adjust your preference.