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JT1

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  1. Does anyone know if Axpert 5kw MK3 450VOC and Axpert 5KW 140VOC will run in parallel ? The panels will be wired in series of 6 panels for 450VOC model and series of 3 for 140VOC model. Settings 28 remains the same for both to configure Single/Parallel option. Please advise if this has been tested and working ?
  2. I have seen on various threads on the forum where people have some confusion on Pylontech Battery Monitoring cables and how to construct them for the various versions of the Pylontech Batteries. I did tests on Pylontech US2000 Plus, US3000a and US3000c batteries and it worked 100% via ICC Pylontech Battery Monitoring Option. Attached is a picture of the cable construction for the RJ45 version (RJ11 Console port Version also available). The cable has been constructed and wired for flexibility and able to extend via normal network cable. I listed the cable from 2 Meter to to 20 meter for people that cannot make these cables themselves at https://www.hdcabling.co.za/product/pylontech-console-cable-for-battery-monitoring-us2000-us3000a-b-us3000c-up2500-up5000/ and think it is an affordable price. The link should be useful for people who are unsure which cable to buy. Please leave some comments on pricing / construction.
  3. @dropkickWill use an old android 10" Tablet for sure and permanently on charge for a display with mqtt values. Will be a lot cheaper. Can also fit more counter values on a larger display than currently on my phone without scrolling. I Mostly check the phone if bad weather and then switch over to utility if batteries is low to charge from utility, especially before load shedding periods in the area. For remote switching between utility/solar I just configured a ddns record and forward mqtt on port 1883 to the pi via router. The mode switch button is Inverter/SetMode on ICC Variable, not a lot of people use ICC to max potential.
  4. Thanks for the compliment. I use ICC on a pi and the screenshot is mqtt dash on android with the variables on each block just linking to ICC variables and inverter mode trigger. Still have to do some trunking on some cables on setup tomorrow but then sorted. I added thicker trunking to ensure on failure cables are easily rerouted in future. Attached was during my troubleshooting and replacement lol.
  5. Thanks for the reply, it makes sense on the higher voltages. Yes I rewired DC Db's to have 6 pv panels in series where it was 3 before per breaker. Total 8 sets of 6 pv panels, 2 sets of 6 panels in parallel on each inverter. Took a while to figure it out lol. Solar Pv panel icon was just flashing on 3 pv panels in series. After I checked the manual it showed 120Vac min, 450vac max. Input around 205-220v now with 6 in series.
  6. Can anyone please advise if temps attached is normal for the Axpert 4k mk3 inverters? I had 4 inverters in pararallel for 4 years model AXPERT 5K/5000VA but 1 failed recently and I replaced all with 4 x axpert 5k mk3 units. The previous models ran 55C max with around 50% usage while charging batteries. Attached is ONLY charging batteries and temps on inverters very high, had almost no load on the inverters. Ambient temps were around 30 degrees Celcius. When batteries were fully charged and usage around 30% the temps on the 5k mk3 are around 55C. Could airflow at the bottom of inverter improve temps? Previous inverters were mounted on the exact same position and was fine it rarely went over 50C.
  7. @Coulomb Thanks, I checked the Aussieview manual and the text makes more sense now :-) The switchback to UTL from SBU for Parameter 1 one seems to happen when charging is on Solar Only. I have ICC Running with a back to Grid Time setting, might be only during the time it is back to grid that the setting is updated and then when Time back to Solar it will update setting again. Will monitor it and check thanks for the guideline
  8. Hi @Coulomb I have installed the 73.00c with 4 inverters in parallel but the text is not displaying well. See attached for picture of master (Should be HS), the Slave (SL text) displays fine. Other settings text also not readable on some settings can upload a few if needed. The inverter automatically sets Parameter 1 back to UTL after a few hours. I then force it to SBU / SOL but it will set it back to UTL again. Any ideas ?
  9. @Chris Hobson Thanks for assisting. I have set the Floating Charge Voltage Parameter 27 to 52.8v and Bulk charging voltage Parameter 26 remains on 53.2v as set by battery installer. Will check if bypass problem will improve. Doing some research currently on the 72.70c patched firmware
  10. Currently I have 4 x RCT (Voltronic) 5kva inverters in parallel. The settings are set to charge the batteries 10A max from Utility and 25A per Battery for the Pylontech US2000 2.4kw Batteries. It seems the batteries does not reach above 51.5volts. I have the setting for Parameter 1 = SOL (Solar Only) set and did not mess around with the charging voltages set by installer since do not have a guide for it. The installer who helped with the setup recommended solar only and said it will charge during day with Solar and during Night with Eskom. This does not make sense to me. The inverter is on bypass a lot during night and I am trying to resolve this (Even this morning when panels could supply load it was on bypass and panels charged batteries). When I manually dropped the Eskom breakers the load supply switched over to the PV Panels/Batteries but the power to the house dropped for around 1 sec and there was an interruption on power which caused appliances to power cycle for that short period. The load is around 700w-900w during night per inverter and 900w-1.6kw during day per inverter when I do not switch-on the manual changeovers for some plugs I have on changeover between Eskom and Inverters. I have Parameter 1 set to SBU this morning hoping it will solve the problem with the batteries charging. Is there anything else that can be checked ? Thank you @Chris Hobson for the pics of your ground mount panels. It took me a while to build them all with some help and I change it a bit to ensure the angles can be adjusted best I could do was 11 degrees to 50 degrees variable adjustments. Posted some pics
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