viceroy

Sorry to resurrect an old post. Would the following be compliant? - Dedicated 40A (or would 32A be better?) breaker in main DB. - 6mm2 cable in trunking from DB to garage. Around 5m in length. - Industrial plug with disconnect in garage. (no sub-DB) - 7kW EV charger connected to industrial plug

Nah, the solar feeds the house loads only. The EV charger will be separate.

I've just purchased a BYD Dolphin Surf with 38kWh battery. It came with a plethora of charging goodness ranging from 7kW wall charger, 3kW plug in mobile charger, EV to load cable and an EV to EV cable. Currently I've just plugged the mobile charger in and seems to charge decently well, enough that should be able to charge from 10% to 100% in around 12 hours. While the mobile charger should be fine, I would like to install the wall charger though, and initially I thought this would be straight forward, but pretty much everything I have read seems to indicate requiring municipal permits. Is this really the case or will a CoC on completion suffice (I am no electrician, but am friendly with one who is happy to validate anything I do.) Anyway, municipal permits aside, I wouldn't easily be able to add a dedicated 40A circuit to the main DB, however there is an external board where power enters the property into a breaker and then to the main DB. Would I be able to feed from this point into the garage (literally through the wall) where I could install a small DB dedicated to the charger with the required RCD, main breaker, surge protector etc? Thanks

Got a cable custom made for me by a local PC guys. Used Billy's cable layout from the mentioned thread and instant BMS recognition. Inverter 2 -> Pylontech 6 Inverter 4 -> Pylontech 4 Inverter 5 -> Pylontech 5

Thanks, I did read that already, and it was useful, but I'd rather buy a correct cable than be hacking at cables or having to go out and purchase RJ45 crimping kits.

I recently purchased a Deye 5kV inverter to replace my aging RCT MKS 4kV inverter, mostly because the RCT is relying on a Pi for monitoring, and I was starting to see some really strange battery behavior, ie SOC would be at 100% and instantly drop to 40% and then back up to 100% over and over again until I reset the Pi and all was good again. I don't know what the issue was and I didn't delve more deeply into it other to verify the actual SOC was really at 100% and not bouncing up and down. Anyway, this last weekend I started setting up the Deye, plugged in the Deye provided CAN cable, and no BMS. Eventually I tried connecting each battery to the inverter by itself and the 2 older US3000 batteries report BMS fine with the cable, but the 2 newer US3000C refuse, and this is a problem because the C is the master. To cut a long story short, what cable do I need? I don't really mind if it's CAN or RS485, just as long as I can get the BMS reporting to the inverter working. Thanks

I'd rather not pair such an old inverter with a "new" one, and highly doubtful I'd find the same exact same model to do so. Space is also a limiting factor as I cannot fit two side by side with appropriate spacings between. Is your advice based on any inherent problems with the Kodak?

So I've been running with my RCT Axpert MKS-5000 for at least 7 years now. I've been thinking of a slight upgrade to basically allow installation of more panels, get some more available kW for running the house, and some QoL features wouldn't go amiss. I saw the Kodak 6.2kW (OG-PLUS6.2) on the PowerStore which I think fits the bill. Anyone have any experience with these? Are they basically just fancier newer Axperts, or are they different animals entirely? Any feedback would be appreciated.

I'm interested in what field you're studying? And also, done.

Aaah, saw that section in the manual, but couldn't see those options in the menu setup pages. I didn't want to enable hybrid mode as it looked like it was for grid export, at least according to the confusing screenshots and lack of wording. Will investigate. However, without going into that section it seems to be doing what I want by working with some of the main menu options. Not sure why the bms charge limit is at 0, was set to 70.

I recently installed a LuxPower SNA5000 and 2 Pylontech US3000C batteries for my father-in-law, and it's been functioning great. This week we added 4kW of PV, but for the life of me, I can't get the inverter to use solar as first priority, then battery and then only grid if the first two are not available. I'm used to a RCT Axpert MKS inverter which allows this, but this Luxpower has me stumped. Anyone out there with a similar setup and running it like I want to, able to share their settings? Thanks in advance.

I've just upgraded my battery bank 2 Pylontech US3000B's with additional 2 US3000C batteries. My existing 2 batteries had been in use for nearly 3 years now with about 550 cycles on them. Now when I check in ICC, the cycles on all 4 batteries is showing as zero. Is this normal?

Who is your email provider/ISP? This type of scam happened to my father last year, and my suspicion is that it's an inside job at the ISP.

Looks like we've found a USB module. Hopefully it's the correct one.

I was online with Johan, the developer of SMH when we tried, and no luck. I'll chat with him more about using my system as a guinea pig if he can add RJ45 serial as a connection option.

Mine has a RJ45 port and I also have a RJ45 -> Serial cable. However, this setup is NOT compatible with SMH, so rather than buy a new inverter, I'm looking for the USB module which comes on the later inverters.

Thanks guys, but that is not what I'm looking for. I'm looking for the actual USB interface board which installs into the inverter replacing the RG45 RS232 board.

Hi 87, Please provide a link to the USB interface on Takealot? My searching skills don't seem to be able to find any.

I've just sat with Johan to upgrade my installation of ICC to SMH, and unfortunately my inverter still uses the old skool serial interface. Does anyone know where I can source (locally hopefully) a USB module to work on my inverter?

So there I was busy working from home, and the power just went out. Go check the two DBs and nothing is tripped on either, but there is a distinct burnt smell. Inverter showing error 56 (battery circuit open), so I pop open the fuse box, and the negative is tripped. I open up the fuse holder and see the 100A is blown. No high loads were happening at the time. Batteries were charging, normally by what I see in ICC, so I'm stumped as to what happened. For the time being I've turned off the batteries and inverter, and running purely on grid, but before I go off and get a new fuse and fuse holder, I'd love it if anyone can give insight into what might have happened. From what I can see, both batteries appear fine, as does the inverter, but I won't know till they are connected again, although ICC reported them as healthy so I'm hopeful.

Thanks all. Looking back through the history, it's tripped 4 times, 42A, 49A, 26A, and yesterday at 27A. Not a great record for one month. Definitely looking like it's faulty. Breaker is warm to the touch when I've been there to catch it. Going to play it safe and replace the breaker, and the wiring for that section.

I have 3180W of PV panels configured to output between 80v and 100V. At peak output the voltage is around 86V. The peak Wattage I see is 2800W, but usually closer to 2500W. When I redid my system recently, I installed an Onesto 250/500VDC 6kA 63A double break circuit breaker. I had nothing previously and this one seemed the closest match to what my panels put out. Since then, the breaker is tripping, usually late morning, and not every day. Not only is this annoying, as I'm at work and can do nothing about it until I get home, but is wasting precious solar to charge my batteries. Looking through ICC outputs, I can't see anything unusual. I've even lowered the PV charging amps in case there was some sort of overload causing the issue. The attached image is from today when the CB tripped. As you can see, looking pretty normal until the sun suddenly disappears out of the sky. Any ideas?

I sold mine to Battery Center in Roodepoort. Got R11 per kg.

I also saw this sort of thing happening at the low end of the charge scale too. Batteries got down to 21% and stayed there. I didn't wait more than 5 minutes to let it get to 20% so ICC could switch to grid and start charging. Would hate for this to happen to someone, and their batteries accidentally drain down to 0% because the BMS was still showing 21%. I have since set my min battery switchover SOC to 25%.

Thanks very much. I didn't use to have the luxury of putting everything right by the DB board, only about 5m, but the wires were already there so that's what I used. Only now that I've gone from 500kg of AGM batteries to 60kg of LiFePO4 can I make it all fit in that corner. That's great you are getting such good use out of the batteries. Sadly, where mine were before was in the garage, where temps are pretty much always above 40C...a real battery killer, so I'm happy to have gotten 4 years out of them. The labels are just printed on my laser printer and scotch taped to the inverter. It's kinda temporary. Will be getting some decent adhesive vinyl labels made up soon. A lady near where I live, has all the materials and printers to do it nicely. She already made my warning labels...