mib
New Member
Yes, I'm from Ukraine, we have a standard of 230 volts
but in point 38 I can change 120/230 volts, which surprised me, but I didn’t check it with a multimeter
EAsun MLV 3KW-U hybrid off grid solar inverter 1st week review and updated for 1 year of usage.
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but in point 38 I can change 120/230 volts, which surprised me, but I didn’t check it with a multimeter
if your manual stops around setting #29, you have the manual missing several pages. something ive seen in many downloads too
My manual runs up to #37. There is a jump from #29 to #35. #35 of Battery voltage recovery setting and #37 of Battery fully charged recovery point are pretty important parameters to have. #36 of Max PV charging current is a must.
good, ive downloaded from different sites that were incomplete. my inverter has #38 That i dont mess with
mib
New Member
U serie = US 120V
S serie = EU 230V
You have an S version, normally you cannot set 120V in parameter 38.
Me too 230V I'm in Belgium
Yes, sorry, I checked, I can change 200/208/220/230/240, it seems that the instruction is universal for both 120 and 230
Yes, I also downloaded the instructions on the manufacturer's website and there is the last item 28, but these items are in the instructions for the HF2430S80-H and in my paper manual, photo above
Sleeper85
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In my EAsun manual the parameter 36 is absent and also in the SRNE HF4850S80 manual but in the SRNE HF4850S80 P (parallel) manual it is present.
All these manuals are the same with the same errors ? and sometimes corrections... The best I've seen is the PowLand site which provides the manual with the EAsun logo
mib
New Member
I didn’t understand either, I decided that it didn’t concern me
perhaps you could write your settings to me, with your lifepo4 battery?
Sleeper85
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For 48V battery
To set the same value for parameter 04 and 14, you must set parameter 14 greater than the desired value for 04. Next, set parameter 04 and then set the value of parameter 14 to the same value as 04.
Parameters 14, 04 and 12 could be set lower like 48V but I increased them to keep some power in the batteries because in AC bypass mode the inverter still draws 30Wh from the batteries, so that leaves some time before the next solar recharge.
Personally I use LiFePO4 batteries in the 3V to 3.4V range in order to preserve them.
To set the same value for parameter 04 and 14, you must set parameter 14 greater than the desired value for 04. Next, set parameter 04 and then set the value of parameter 14 to the same value as 04.
Parameters 14, 04 and 12 could be set lower like 48V but I increased them to keep some power in the batteries because in AC bypass mode the inverter still draws 30Wh from the batteries, so that leaves some time before the next solar recharge.
Personally I use LiFePO4 batteries in the 3V to 3.4V range in order to preserve them.
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Sleeper85
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Ditto and I don't touch this parameter ?
ME EITHER
mib
New Member
Thank youFor 48V battery
View attachment 134394
Parameters 14, 04 and 12 could be set lower like 48V but I increased them to keep some power in the batteries because in AC bypass mode the inverter still draws 30Wh from the batteries, so that leaves some time before the next solar recharge.
Personally I use LiFePO4 batteries in the 3V to 3.4V range in order to preserve them.
and in SOL mode, when the sun sets in the evening, doesn't the AIO turn on the bypass? Or does it only happen after low voltage at battery point 04?
I will have a small battery 140 ah, I want to save it as much as possible for the reserve, respectively, I will set item 04 as high as possible
but I may have to do, just like now, the timer on the AIO input turn off the AC at 9 am and turn it on at 6 pm and UTI mode
at the same time, use another timer to turn on the AC power supply connected to the battery, with the voltage set to 0.03 volts lower than AIO
Sleeper85
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Yes in SOL mode the AC bypass takes over as soon as there is no PV power. This can also often happen in the morning and at the end of the day when there is not enough PV power. For this reason I only use SBU or UTI mode and I can program it to change automatically based on a schedule via a Linux service that I have programmed.
Sleeper85
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If you read my post below, you will understand that in SOL mode, when there is low light.
The SOL to bypass switch could occur on average every minute which will certainly not be good for the relay.
diysolarforum.com
Still regarding the SCC MPPT, it would be worth paying attention if you notice behavior similar to what is described in the following post:
diysolarforum.com
The SOL to bypass switch could occur on average every minute which will certainly not be good for the relay.
SRNE AIO - Winter production and MPPT behavior at low light
Hello, I have already posted about the behavior of my MPPT controller but a member thinks that my production is abnormal and suggested that I create a new topic. My panels are oriented to the east on a roof with a slight slope of 15°, therefore on the blue line of the diagram below. To the...
diysolarforum.com
Still regarding the SCC MPPT, it would be worth paying attention if you notice behavior similar to what is described in the following post:
SRNE Odd MPPT Charging Behavior - Pause Every 12 Minutes?
Wondering if this is normal behavior for MPPT. The sharp drop off on the right was a one of them pesky clouds :-P But this drop to 0 PV The inverter is a SRNE 3Kw 24v system, 120 volt out. While in between these 12 minute intervals, the voltage and wattage does change and does appear to...
diysolarforum.com
mib
New Member
can you elaborate on this, I thought it works like this:
1. load 800 watts, 1000 watts comes from solar panels, everything is powered by solar panels
2. load 800 watts, 500 watts come from solar panels and 300 watts are taken from the battery, as long as point 04 allows
3. load 800 watts, 0 comes from solar panels, evening has come, the bypass is turned on
maybe someday I will try to deal with a home assistant, I have quite a few sonoff relays installed that he can control, and in theory it will be possible to control the load depending on the power of the pv and soc batteries
Sleeper85
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If you want to connect your SRNE to Home Assistant, this is for you :
community.home-assistant.io
Integrating SRNE MPPT Inverter with HA
So I was looking for a way to get data from my SRNE Solar charge inverter. And after looking into some bluetooth adapters and different modbus configurations I decided to give it a shot. I have never looked into modbus before but after reading this thread I ordered a waveshare RS485 to ethernet...
community.home-assistant.io
mib
New Member
If you want to connect your SRNE to Home Assistant, this is for you :
Integrating SRNE MPPT Inverter with HA
So I was looking for a way to get data from my SRNE Solar charge inverter. And after looking into some bluetooth adapters and different modbus configurations I decided to give it a shot. I have never looked into modbus before but after reading this thread I ordered a waveshare RS485 to ethernet...
yes, this topic is already bookmarked, you need to gather your courage and try to install it, but I never used it, ewelink was always enough for me
unfortunately this is so :-( I looked at the capabilities of the application, they are very weak and there are no settings, but I already bought it while I will use it
mib
New Member
I hope to collect everything by March and I will test the modes, see what suits me more, I still need to wait for the battery
Sleeper85
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The WiFi datalogger is built around an ESP chipset. I don't know where but I saw some people flash it to make it a WiFi-RS485 gateway.
The links below use the WiFi dongle to communicate with the SRNE inverter in modbus :
GitHub - suletom/EASUN-ISOLAR-SMX-II-CONTROL: Documentation collection about controlling an EASUN-ISOLAR-SMX-II chinese off-grid solar inverter
Documentation collection about controlling an EASUN-ISOLAR-SMX-II chinese off-grid solar inverter - suletom/EASUN-ISOLAR-SMX-II-CONTROL
github.com
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The subject of how long these AC bypass relays will last is something that should be thought upon. Especially since I expect it is not a easily acquired or replaceable part. I expect that it would be good practice to minimize transfers, and if possible do it under minimum loading. Things wear out the more you use and stress them.
mib
New Member
I re-read the topic, and I saw about point 4
I also encountered this problem when looking at the settings
but then I discovered that point 4 is connected with point 14, the voltage of point 4 should be lower by 0.2 volts than in point 14
haha read to the end and saw that @Sleeper85 wrote about it twice, and once to me, but probably I did not attach any importance to this at the first reading until I myself encountered
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I find that I can set Parameter #14 much lower than #4 when I use the SRNE monitor program with password "administration". Presently I have #14 set at 24vDC and #4 set at 25vDC. But as I mentioned if I change any setting on the Main panel after doing this it results in #4 dropping down to being less than I would like it to be.
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