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nevinvert

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  1. If it is a Geyserwise system, I would have thought it provided the option of 2 separate power inputs; one for the pump and control panel and separate one for powering the heating element. Not splitting the inputs means no circulation during midday blackouts and no heating by the sun. Wow!
  2. My problem was solved when I selected "USER" for battery and applied some settings I gleaned from advise from the factory
  3. I have a 5kwh Axpert inverter (V 02.66 firmware flashed a while ago) teamed up with a Meritsun 50v 100ah LIFEPO4 battery. This morning I found the Inverter dead with the battery terminals at 12 volt. We did have loadshed last night. The LED diode display 4 lights indicating 75% + charge, but the LCD display panel for interrogating the battery conditions was dead. I found the internal battery voltage is at 48volt when I opened the cover. The battery consists of 15 cells and the factory recommends "cycle charge 53.5-54 v and float 51.5-52.5" MY URGENT QUESTION Will it be safe to simply bypass the BMS and connect directly to the Axpert inverter with suitable settings. What will be the correct settings? We have imminent loadshed. Help please.
  4. Hi All Pardon my very basic/trivial question. TonyH what drawing tool do you use to produce your diagrams? I was wondering if a template for PowerPoint existed or LibreOffice Draw for these drawings Help will be appreciated Neville
  5. My battery is a 15 cel MERITSUN battery. All the new battery options are indeed listed, by scrolling through the battery options on the LCD Display panel. So the conclusion is for me to use a better Android App version of Watchpower. Any suggested? (Entering settings through the LCD panel is so "yester-year". ) Nevertheless, does any of the new (SOL, LIB or LIC) apply to MERITSUN? I'm still having to get Watchpower on my Laptop to connect to the inverter. Ironically the reflash tool connected without a problem but not Watchpower, using the same cable setup. Although my previous inverter connected without problems before it blew up. Any suggestions? This is quite embarrassing to say the least. Much appreciated Coulomb and Shadders
  6. IT WORKED!! VOILA My Android App still displays displays the same 5 battery options as before. My battery is LiPo4 ; any suggestion? If User is selected, where can one find the suitable settings. Your support is appreciated
  7. The main CPU update went well, but running the reflashtool for DSP the message "dsp.hex cannot found! displayed and the com port closed. I did not want to copy the file with the same name from the cpu reflash tool, or was that the right thing to do? I notice more battery selection will become available with the update whic I was looking forward to. LIFEPO4 is now included. Looking forward to uour response
  8. Once again thankyou for responding Coulomb. Unfortunately the problem persisted after converting to 6 strings x 2 panels. Voltage and current measurements confirmed correct reconfiguration. I do not have any monitoring feature installed to record any abnormalities at the time. So whether MPPT is overheating is not known to me. (Any recommendation?) It does appear to me the situation arises when a lot of sun is available and little or no load at the time. Need I be concerned that the inverter default settings are selected, implying Battery type = AGM? The Meritsun 100ah LifePo4 inspires me to be equipped with a sophisticated BMS. The FCS-KING-5000W-MPPT hybrid inverter does have a Battery Option "WECO" which seems equivalent to the Meritsun; Without having any communication cable connected between battery and inverter would some user defined settings not be the better option. Any comments will be highly appreciated. Thanks again for earlier advice.
  9. Thank you so much Coulomb. I think I was a bit in denial when reading your earlier response. So restringing is my next prject. Phase 1 will be 4 x 2 followed by purchasing more cable and connectors to convert remaining panels to 2 x 2. How does the 6 x 2 configuration affect max power output achievable
  10. As said before; I am rather new to the subject although I was an Electrical Engineer by profession many years ago. I am deeply appreciated and impressed by the support from this forum. MY PROBLEM At times my MPPT (SolarCharger) stops with the battery discharging and the sun is blazing. I suspect this occurs after the battery had reached 100% SOC but only sometimes. The MPPT will only resume operation after I first switch off the incoming supply from the PV and wait for the warning that PV is off, and then switch the PV supply back ON again. My system consists of: (A)a single hybrid inverter Specs are: Model Name: FCS-KING-5000W-MPPT Main CPU version: 00071.90 Bluetooth CPU version 00000.24 SCC CPU1 00001.10 (B) 4 strings of 3 Peimar solar panels V(oc) = 46.73 (C) One battery pack of 100AH 50V LiFePO4 by MERITSUN If this problem is unique to this 71.90 firmware version, seems to be mentioned elsewhere on this forum, which version should I flash? and some guidance on flashing will be most appreciated. Especially the cable connections required. The WatchPower seems to have a good procedure. The instruction from Meritsun was not to use any signal cable between battery and inverter and to set the inverter to AGM mode which preloads all the remaining settings. Are there user settings that could solve this issue. Thanks in advance Neville
  11. They eventually replaced item damaged in transit
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