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EAsun MLV 3KW-U hybrid off grid solar inverter 1st week review and updated for 1 year of usage.

Checking my settings, I see that setting 37 is at 54v and I can't increase it.
1675897857491.png

06/02 at 12:40 the voltage reaches 54v
06/02 at 12:51 first time I see this problem

The other times I was slightly below 54v but I don't know the SoC at that time.
We are talking about the SoC estimated by the inverter (not that of the BMS...).

I will reconfigure the battery in LiFePO4 L16 mode (instead of USE) and see if it possible to increase this parameter 37...
 
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Configuring the battery in L16 mode with the following parameters. Results tomorrow night...
1675928772576.png
 
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Unfortunately that doesn't change anything and the problem is still there...

There are surely some things that are programmed like this in the MPPT algorithm, is this normal? no ideas ... if I have more infos I'll let you know.

It's thanks to Solar Assistant (data every 10sec) that I can see that. Otherwise I wouldn't have seen it because I don't stay in front of my AIO screen. Maybe it happens to you too but you've never seen it.

1675950843849.png
 
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I observe my unit quite a bit and am fairly confident that I do not have the same symptoms that you have of the flashing off PV icon and 30 minute cycle. But my unit is a different model than yours.

I note that you said in a different thread that your unit does not charge from PV with the power switch off whereas mine does. So there are some major areas that these models differ in.
 
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Mattb4 said:
I note that you said in a different thread that your unit does not charge from PV with the power switch off whereas mine does. So there are some major areas that these models differ in.
Click to expand...

Indeed if your SCC charges when the switch is OFF, they are very different. You're in luck.
 
A few weeks back I did a full test of my model of AIO charging with the power switch off with my spare AIO. It was hooked up to 2-195w panels in series and charging 2S 12v 100ah SLA batteries. I had discharged the batteries down to about 50% so I could get a good check. On a sunny day the inverter began charging to the batteries once the sun came up, reached as high as 380w, and than before the end of day ceased charging with batteries indicated a full charge.
 
Wakintx said:
3000w 24v. HF2430U60-100.
Click to expand...

I think you have the same AIO as @Mattb4 which is sold as an EAsun.

I wonder now if you have the same firmware? Is there a firmware for SRNE and another for EAsun?

Can you post your firmware and boot loader versions?

Thanks
 
My software APP is 5.17 the bootloader is 1.07


Just to try out taking pictures from my phone and bringing into computer I took this shot of the Control screen from the EAsun with battery fully charged. You will note that the line from PV is off as well as the MPPT icon. Battery charged.jpg
 
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Sleeper85 said:
I think you have the same AIO as @Mattb4 which is sold as an EAsun.

I wonder now if you have the same firmware? Is there a firmware for SRNE and another for EAsun?

Can you post your firmware and boot loader versions?

Thanks
Click to expand...
5.17 and 1.07 firmware. There is a YouTube video to update firmware with an email to a person with srne email address about obtaining firmware
 
Wakintx said:
5.17 and 1.07 firmware. There is a YouTube video to update firmware with an email to a person with srne email address about obtaining firmware
Click to expand...

So, for this AIO model, same firmware for SRNE and EAsun. :giggle:
 
Yesterday at 7:38 p.m., I sent an email to SRNE's technical department.

Today morning 7:55 am I already have an answer :cool:

hi sir,

It is normal for solar charge inverter,every 30 minutes,the solar charge inverter will scan the PV once globally to achieve the maximum input power.


have a nice day.
Click to expand...
 
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Sleeper85 said:
Yesterday at 7:38 p.m., I sent an email to SRNE's technical department.

Today morning 7:55 am I already have an answer :cool:
Click to expand...
Classic answer that is no answer at all. The idea it would have a PV scan every 30 minutes where it flashes the PV icon off for your model of AIO is simply a programing fault of some kind. It would not be a ideal MPPT scan duration for maximum input power.
 
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Mattb4 said:
Classic answer that is no answer at all. The idea it would have a PV scan every 30 minutes where it flashes the PV icon off for your model of AIO is simply a programing fault of some kind. It would not be a ideal MPPT scan duration for maximum input power.
Click to expand...

Yes it is true that it is strange...
 
Sleeper85 said:
Yes but on this site, is not possible to download the SRNE manual. That is the English site.
Click to expand...
Sure you can you just have to select the inverter tab and then scroll down to the high frequency 120 volt model. Yeah and even there you will find almost every website that has srne built inverters are missing a page of the parameters
 
Sleeper85 said:
So, for this AIO model, same firmware for SRNE and EAsun. :giggle:
Click to expand...
Sure srna manufacturers them and you can buy them with your name on it as long as you buy a minimum quantity and pay for them to put your decal or name on it.

My srna all-in-one came through a company called Popsail, who has a distributor in the United states.

One of the clues is the physical appearance of the inverter and the second is if you look on the main circuit board you will find this part number on many HF2430U60-100

Or if you download the manuals or look on manufacturer's websites sometimes you find this same model number HF2430U60-100

I have downloaded manuals from many different companies purposely trying to figure out who manufactured another AIO I have that has the makeskyblue name on it just like the inexpensive mppt solar charge controllers.

I almost wanted to produce a chart of all the different ones I found leading back to the original manufacturer.

Not just SRNE but Must, Voltronic, etc
 
Wakintx said:
Sure srna manufacturers them and you can buy them with your name on it as long as you buy a minimum quantity and pay for them to put your decal or name on it.

...

I almost wanted to produce a chart of all the different ones I found leading back to the original manufacturer.

Not just SRNE but Must, Voltronic, etc
Click to expand...
I noticed when I did a search yesterday of off grid inverters there was several more companies that were selling identical to my EAsun 3KW inverter. PowMR, Powland, Y&H, Renogy, and several others that might be since they have the same control panel but slightly different box configuration.
 
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Mattb4 said:
I noticed when I did a search yesterday of off grid inverters there was several more companies that were selling identical to my EAsun 3KW inverter. PowMR, Powland, Y&H, Renogy, and several others that might be since they have the same control panel but slightly different box configuration.
Click to expand...
Exactly. Even midnite is selling the SRNE controllers under their DIY model. I work for an investor that has imported various things from china. Doesn't mean that it's necessarily garbage. You can actually order one's labeled with srne directly from the factory if you're willing to buy 10 plus for prototype.

At some point I almost wish that we created a group for inverters by manufacturer but you never really know who made them. My particular all in ones have a booklet that removed almost all the srne model numbers from it but the warranty card that came with them low and behold has srne all over it..
 
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I had paid no attention to it before but my AIO has no name on it, just model number on the spec. sticker and my user manual is for ISolar MLV 3KW-U with no mention of either EAsun or SRNE. The Warranty cards are nothing more than a blank form with places to fill in Customer and Product information plus a place to list date and failures. No mention of who or where you could contact or length of Warranty. None of the classical legalese where the item is warrantied against failure until it breaks.

Must admit I bought the inverter with no expectations of Service if something was not right.
 
Mattb4 said:
I had paid no attention to it before but my AIO has no name on it, just model number on the spec. sticker and my user manual is for ISolar MLV 3KW-U with no mention of either EAsun or SRNE. The Warranty cards are nothing more than a blank form with places to fill in Customer and Product information plus a place to list date and failures. No mention of who or where you could contact or length of Warranty. None of the classical legalese where the item is warrantied against failure until it breaks.

Must admit I bought the inverter with no expectations of Service if something was not right.
Click to expand...
My inverter all in ones are the same way. They have pop sales model number on the sticker on the side. But I already knew what I was looking at. Not because I have tons of experience with solar but because I have tons of experience chasing down products based on things like military specifications and just playing following threads and leads and crap I don't know how to explain it. But since I have an srne solar charge controller that I had already researched the company. And no my solar charge controller does not have srne written on it anywhere it just had the model number which I started googling and seeing how many different companies sold and etc etc

But the circuit boards inside have part numbers and model numbers that also help

At the price I paid for my all-in-ones on a kind of close-out deal I ended up buying three because hell 3,000 watt pure sine wave inverter was going to cost me more than that at 24 volts from somebody's company with somebody's name on it from some company probably in china.

I still paid less for three of my srne all-in-ones then the guys with the blue stuff, you know which company I'm probably talking about, pay for just an inverter with a battery charger and no solar charge controller and probably no LED display bar graph anything because you got to buy all those separate
 
As owner of AIO SRNE or other rebranded SRNE.
If you want to communicate with your AIO via modbus, this might interest you.

diysolarforum.com

ISOLAR-SMX-II-5.6KW dead after firmware update

Previous post was incomplete, i am making new one with more details. This is my first solar system installation and I guess i bricked my inverter i dont know if it is my fault i am pretty sure that i followed all the instructions carefully At Powland site i found that for "batteryless firmware"...
diysolarforum.com diysolarforum.com
 
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