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@diso12 Actually, I didn't bother with trying to figure out the HDMI connector's pinout. If you remove the 4 screws holding the wifi dongle's mounting bracket to the inverter's chassis, you'll see that inside there's just a simple PCB to adapt the HDMI connector to a standard 4-pin JST header...

@diso12 Hardware-wise I'm just using an ESP32 with a RS485 to UART adapter. I also don't really like the wifi dongle implementation (security-wise, if nothing else), and besides my inverter is in an outbuilding with no wifi connectivity, so I leave the wifi dongle disconnected. I'm not sure...

I also just saw my battery voltage hit 58.1v for the first time after recently upgrading my Luxpower SNA-US 6000 to 190D0E. I upgraded on September 10th, and now that I look more closely at the history you can see that this happens any time my SOC hits 100%. Before the upgrade, voltage never...

I know it's been a few months since there's been activity on this thread, but for anyone still interested I actually got this exact scenario working with the current release (2023-08-16) version of Solar Assistant on my EG4 LL-S batteries. Initially, I saw the exact same behaviour that @crzykidd...

Very interesting! Looking at your register map (here) made me realize that while I did try bitmasking on the WORD and D_WORD boundaries, one thing I didn't try was handling the high/low BYTES of the register as individual value. In retrospect, I'm not sure why that didn't occur to me ;) I'm...

What RS485 to UART converter are you using? I had nothing but trouble with some cheap adapter boards I bought off AliExpress initially. Things magically started working once I bought these. Also, does your model RS485 converter have a flowcontrol pin that you need to trigger to toggle between Tx...

You definitely can't share them; only one master allowed per rs485 bus. My point was just that the manual and RTU documents both strongly imply there are two separate RS485 busses - the INV485 bus and the "Meter" bus. I still don't know where the Meter bus pins are though. Agreed the Wifi...

Sage advice. Physical inspection shouldn't be too much trouble -- it runs the length of the house through the basement above a drop ceiling to the breaker panel. I should be able to pop up enough tiles to see all of it. The previous owners used it on a separate 50a breaker for a hot tub, so it's...

I have a Luxpower SNA US-6000 (effectively an OEM 6000XP), and my unit has behaved like you describe since day 1. In addition to not charging from PV when EPS is switched off, I've also noticed that the green "Normal" LED flashes continuously. This seemed like a software bug to me when I first...

I have some good news for you. I still don't know the cause or eventual solution, but your "upgrade won't skip firmware versions makes sense to me. (my previous upgrade was 6 months ago so I don't remember exactly, but maybe I tried to upgrade to 180C0D at night so the MPPT had no voltage)...

@Offgrid Jungle I'm also still mid installation. My inverter and batteries are installed and running, but I'm still building my PV ground mount. My understanding is that the bigger noise culprit are the 2 fans dedicated to the PV charge controller, so I can't test those yet without PV input. But...

Just wanted to reply to this thread with some closure, for anyone in the future that sees this same thing. I wound up engaging Luxpower support to look into this behaviour. After some investigation, the conclusion was that there was some error in the voltage calibration. I don't have much in...

What inverter model and firmware version are you looking at? I just checked the app, and the newest shown for my SNA-US 6000 is still 190D0E.

Sorry, I suppose I should have updated this thread. No, unfortunately I'm still not able to poll SoH. I did check the high byte of the 16-bit return response from register 5, and it's always 0. There aren't any other references to SoH or Health in the modbus protocol doc, and all of the...

Just to chime in, I'm also seeing this issue after recently updating to 190D0E. I posted a bit of info about it here. I wish I'd seen this thread first as it's probably more relevant to my issue, but I don't want to double-post the same info.

Has anyone been able to successfully update the MPPT firmware on their LXP6k? I recently noticed that there was a new release for my inverter (probably coinciding with the recently-released EG4 6000XP firmware). I don't use the web management portal, so I connected the App directly to my...

Alright, thanks for the correction. I'm still mid-install, so I don't have as much hands-on time as you.

Sorry for the delay in reply. Had to get the little ones in bed before I could get back to the keyboard. So it seems to be working now, but I'm not sure what's changed. Previously (i.e. this morning) when I turned EPS functionality on for 5 or 10 minutes it had no impact on the behaviour. This...

Amazing. Thanks so much for sharing, and sorry I didn't find that post in my searching. Clarifying question though: I'm assuming the black/white wires are the RS485 bus referred to in the documentation as "INV485", and the other two wires are GND/VCC to power the wifi dongle. Is that a safe...

Yup. I’m still using USB modbus in SA.

I'm having a strange (to me) problem I'm hoping someone can shed some light on. I've got a 6000XP and 2x EG4 LL-S 48v 100AH. For the past few months I've been keeping the batteries charged via off-hours grid charging while I worked on getting my PV ground mount built and the cables run. Just...

Ah. Any idea how long these releases typically take to trickle down from installer-only to generally available? Also, how does one get an installer account? Is that a permission my local distributor can add, or only LuxPower directly?

yup. My MPPT input is at about 260v right now.

I've had this installed in my house for about 18 months now as a standby emergency power backup. So it's used, but barely; Still looks and works like new. I'm selling it because I've upgraded my system to 48V. I'm asking $700 CAD for it, and I'm located in southern Ontario just north of the GTA...

I've been referring to the EG4 Modbus protocol spec (provided by EG4 here) and successfully polling my inverter for the usual suspects (inverter state, battery voltage, PV power in, load power out, bus current, etc.) directly via a DIY modbus controller I'm working on. The one thing I haven't...

I'm having a strange problem with my SNA-US 6000 (aka 6000xp) inverter. I'm wondering if anyone's seen this before, or has any suggestions. The behaviour is that once the PV has charged the batteries to full, the inverter keeps trying to flip operating mode from Solar/Battery to Grid mode...

Not sure how similar the 12k is to the 6000xp, but assuming they share a similar protocol (and you've got your wiring sorted out), you should just need to add a few components to your .yaml in order to get basic comms working: uart: - id: rs485_uart tx_pin: GPIO1 rx_pin: GPIO3...

Makes sense. Thanks for the background. I suspected it wasn't a conductor-related issue. My inverter will support MPPT on up to 400V in, so my original plan was to use as high a PV voltage as I could in order to minimize line loss over the ~200ft run. Now I'm thinking maybe that's not...

Given that Voltronic was the OEM for the 6500EX, and Luxpower is the OEM for the 6000XP, I don't imagine there's a strong "feedback loop" through-line in the design process. Not to say there aren't improvements; there are. My point is just that it's not like these products are iterative...

Whether or not you need to use flow control depends on which RS485/UART converter module you're using. Which module are you using? Does it have more than just VCC/GND/Tx/Rx pins on the UART side? As for which GPIO pins to use, that depends as well. Most ESP32 modules have at least 2 UARTs. You...

I realized after posting that this topic is probably more appropriate for the General Troubleshooting Help forum. Can a mod move this thread there for me or should I repost? Thanks, -A

@Offgrid Jungle agreed there's obviously a correlation between wattage and temperature. I guess my main complaint is that basing the fan curve on wattage alone is in my view a naive way to do it, and doesn't account for external factors like ambient temperature. I briefly toyed with the idea of...

@EG4_Jarrett did you ever get a chance to dig into this? I'd really like to be able to query the inverter directly using RS485, in addition to using the wifi dongle if possible. The only RS485 pins I've found that are referenced explicitly are pins 1/2 in the BMS port, but those don't seem to...

I'm planning an off grid ~4kW solar array, and am putting together a parts list. I plan on using the appropriate outdoor-rated 8awg cable in a conduit for the run between the array itself and where the cabling will enter the house. However, the array will be at the opposite side of the house...

@Offgrid Jungle -- I really like this idea, and I'm in the process of printing 3 of these adapters in black PETG. I have one concern though that might be a showstopper for me. In general, I don't see how one fan can achieve similar static pressures at 1200 RPM as another can at 7000 RPM, I don't...

Yeah. It would have been less confusing if they'd called "Return" something else, like "Back" :P

Nothing's changed as far as I know... are you sure you're holding the right button though? It's the "return" key, not the "enter" key. The second one from the right.

follow-up question... I noticed while I was doing my inspection that the printing along the length of the cable indicates it's rated for 300V. The panels I'm looking at have a Voc of ~40v, which means @ 8s I'd be running at 320v and that's without some margin for cold temperature. Is this maybe...

I'll definitely keep doing more digging through the forum for both Luxpower and EG4 posts. I'm aware of an issue from last year where 6000xp inverters (either EG4 or Luxpower OEM) would exceed the configured absorption voltage under certain circumstances, which could trip a BMS's overvoltage...

Perhaps. I hadn't considered that. ECO mode is off on my unit. If I get a chance I'll turn it on and see if it makes a different once the sun's up tomorrow. Can I ask what makes you suspect ECO mode?

@SunBandit I suspect you may have it backwards... I believe fans 1 and 2 are for the PV charge controller, and fan 3 is for the inverter. During "peak PV", are your AC loads still relatively light? If so, that might explain why fan 3's exhaust remains cool. Does fan 3 exhaust heat up if you put...

Sounds good. I'd appreciate it if you could share your findings here as your testing progresses. Maybe by the time I'm ready you'll be a revision or two further along. Once I finish getting my PV installed, I also plan to do some testing. One thing I'd like to do is hook up a few strategically...