Sorotec REVO II 5,5Kw / EASUN( AXPERT/POWLAND) IGRID VE II 5,5KW

all1971si said:

I replaced REVO II with 6200W (powmr/next/daxrtomoon)

It wokrs much more stable, lower selfcomsuption, export limit, but no external CT)

On many chinese inverters is problem with software.

Hardware on paper promise a lot but in relity, almost allways there is a software problem

Click to expand...

Good luck with the new inverter.
Most of us aren't able to simply change inverter, especially as the "all" look great on paper, but reality is different.
Except the High quality brands ??

For the money, My Revo's work fine.
And the development didn't stand still in the last 3 years.

I'm sure there are good alternatives now.

Well, there is allways P/P. I got 6200 for 450€ shipped.
PV MAX 450V and no busbar high voltage errors.
No battery draining power night.
I can not test full power for now.

MPTT works OK (7x 450W panel in winter)

Looks like a nice one.
Can They work in Paralel?

When ever you have 3 x €450 leftover. Think of your pal in Thailand ???

Frank in Thailand said:

Looks like a nice one.
Can They work in Paralel?

When ever you have 3 x €450 leftover. Think of your pal in Thailand ???

Click to expand...

Downside.
No parallel on this models (6.2, 7.2 , 8.2 and 10.2)
No external CT, yust internal export limit.
And no automatic switching from SBU mode to solar mode. (export works only in solar mode)

In the future i will change 7x450 to 36x405.
I will zip them

all1971si said:

Downside.
No parallel on this models (6.2, 7.2 , 8.2 and 10.2)
No external CT, yust internal export limit.
And no automatic switching from SBU mode to solar mode. (export works only in solar mode)

In the future i will change 7x450 to 36x405.
I will zip them

Click to expand...

6500 solar sounds nice.
Not sure if it really can do.
The Revo claimed 5500, but does 4200-4400.

Not so bad after I changed the amount of solar per unit to better match the max real capacity.

Most units at that time had a max of 250v and 3500 watt.

14.5 kw on solar panels, stil would need 3 hybrid.
And the stupid thing is, if you find an MPPT that can manage around 350-450v and +/- 5000 watt... It's usually more expensive then an hybrid unit.

It's good to see that development continu!
And the price... €450,- that's good.

Revo units here (5.5kw) are still around €600-650

How is the noise level?
The Revo II does need some modification if you want to use it indoors and have bedroom or office in that area.
(Or use earplugs)
Temperature in Thailand probably has something to do with that also.
30 c is normal indoor temperature.
And during cool season under 20c in the morning... Thais wear winter jackets that normally is seen in the snow at -10 in Europe ???

sorotec released new model revo hmt. anybody got his hands on them?, how are they performing

Berseker said:

sorotec released new model revo hmt. anybody got his hands on them?, how are they performing

Click to expand...

On paper not a bad one.
4-6kw 6000w solar (probably might just tip 5000 as the 5500 doesn't get it)

Not much information about the lithium battery.
The Revo II Lithium setting is S15...
Would be great if they improved that.

And they put back the peak and valley power charge / discharge to the grid!
(What was in the original firmware of the Revo II)

Price about 300-500, depending where (and how much) you want to buy.

They updated the airflow, less restricted now, but probably still is far from optimal.

I'm curious about the noise levels!!


If anyone buys.. please leave a review!

all1971si said:

I replaced REVO II with 6200W (powmr/next/daxrtomoon)

It wokrs much more stable, lower selfcomsuption, export limit, but no external CT)

On many chinese inverters is problem with software.

Hardware on paper promise a lot but in relity, almost allways there is a software problem

Click to expand...

lower self consumption? how many watts does our new inverter consume?

Good question!

Zorro said:

lower self consumption? how many watts does our new inverter consume?

Click to expand...

And "what is" self consumption?

We know the Revo like most China Hybrid use about 1.5% of rated power just to operate.
In my opinion, the 75-100 first watts of the MPPT getting "lost" before the mppt starts providing energy is also "self consumption.
But...
Without external shunts and Ammeter, you wouldn't be aware

The 1.5% you probably can see from the battery BMS when it's turned in but powering "nothing".

On paper it all looks nice.
Heck, even the Victron 3kw inverter on paper isn't using.much..
That is, untill you hook it up with ammeters and turn it on, without using AC... 50 watts self consumption.

I had a whole discussion about it with a Victron Engineer...
Obviously he tried to defend the numbers on paper...
And failed, claiming it's really complex to determine its own power consumption, so many different factors...

Hahaha...

Battery + shunt/Ammeter-> inverter turned on, no AC draw.. (breaker) -> look at shunt/Ammeter....
Really complex...

Probably I'm not smart enough to understand the complexity.

@all1971si , please share your findings!
Also, can it reach any of the advertised numbers?

Perhaps make a new post fot it, your findings of this PowMR, and place a link to it here?

I'm absolutely curious about how it is living up to the specifications.

Hello everyone, hope you are all well.
For a while now I have noticed some oddities with my two machines running in parallel when the sun is bright outside, no clouds and causing losses from the panels. One of the machines most often the master rests instead of charging the battery. The battery at this point still has a long way to go until it reaches the maximum I set at 55V. The other thing I've noticed is that with the sun shining again, one of the machines sits at zero energy PV output but detect 309V from PV until I restart it completely. I've read that there are quite a few different firmwares, so I think there might be bugs in my factory FW one, and I'd like to ask if there's a newer version or a solution to my issues. I am attaching a screen shot for us. Many thanks to those who responded to help.

Yes, there is newer firmware.
The display firmware is relatively easy to update.

The MPPT you kind of need to buy flash hardware from Sorotec.
it's the "same" as the everywhere available J-Link, except that the one available at Alix/Amazon will brick your MPPT.
Flashing will while the firmware, not complete writing the new
With "their version" re-flash and all good.

i tried to figure out with Sorotec what is the difference, we could not pinpoint.
i just now have 8 spare boards working..
who had died during several attempts.

the strange behavior...
you might not need to flash.

what is crucial is the correct order or the steps and confirm that it is working.

it has everything to do with battery settings.
first set to lead acid, safe, exit , reboot (not sure if reboot is needed, i do it anyway)
next step is to set to lithium (what is standard S15) safe, exit, reboot
then set "user" and your desired voltage.

there will be a difference between the voltage "seen" by the Revo and your battery voltage. Keep this in mind.

I use 0.2v difference between the 2 voltages, that works for me.
Same voltage doesn't.

Make sure that the settings are holding in the system.
Just looking and seeing the values you placed isn't good enough.

I have had times that the voltages are shown correct, but it kept charging like it's lead acid ..
And times that it kept "hanging" in S15 lithium, while showing the correct information in the display.

Just redo the loop (a few times, if needed) and it does hold.

How what why?? No idea.
It just does this strange behavior.

Once it does hold...
All works just fine.

Going from lead acid to lithium, that always went OK.
And charging S16 like its S15 isn't that bad.
You charge up to roughly 93%
What is also recommended to have longer life / more Cycles.

If you ever have "no battery" as choice...
Remember that you need to set it to lead acid before the system will work again

Hi Frank, thanks for the comprehensive answer. I thought that with RS232 I would be able to flash, but since additional hardware has to be used and the risk of not having a working inverter afterwards is high, I will skip these steps. Otherwise, I have manually set values for float and bulk voltages of the battery, the battery is also behind the BMS from which I can also watch when it is charging and what is happening to the cells.

Codename said:

Hi Frank, thanks for the comprehensive answer. I thought that with RS232 I would be able to flash, but since additional hardware has to be used and the risk of not having a working inverter afterwards is high, I will skip these steps. Otherwise, I have manually set values for float and bulk voltages of the battery, the battery is also behind the BMS from which I can also watch when it is charging and what is happening to the cells.

Click to expand...

"Any" J-Link will flash the display firmware, without any trouble.

That's the "brains".
MPPT more tricky.
Inverter firmware is the Controller board, that Sorotec doesn't provide firmware for.
You can buy newer version.

At what voltage does the mppt stop charging?

It might be hanging in lithium setting.

When close to the "set voltage" it does stop for a while, sometimes even 0 solar to "Cycle" or something like that, like some tickle charging??
By lack of better word.
Discharge a bit and then push it a bit further.

Stupid thing is that it doesn't sync with the other units...
So that then makes it pointless as the other is just pushing a bit harder.

This only happens when it's near fully charged (to set voltage)

I don't care that much as i like around 90-95% charge

Here you are, the facts in one beautifull and sunny day:


And the another REVO in parallel:


And my USER settings: 56V Bulk & 54.8V Float - My Deligreen/Daly BMS settings: 3.65 High protect Voltage, and 2.50 Low voltage and the battery pack is perfectly synchronised between all 16pcs. they are completely far away from 3.65 protect limit. But slave inverter is day off :D without asking me. The inverters use same PV platform with same pcs PV modules. And I have no Failure or events about that, when I restart the inverters, S 02 starting to generate power.

Codename said:

Here you are, the facts in one beautifull and sunny day:
View attachment 138097

And the another REVO in parallel:
View attachment 138098

And my USER settings: 56V Bulk & 54.8V Float - My Deligreen/Daly BMS settings: 3.65 High protect Voltage, and 2.50 Low voltage and the battery pack is perfectly synchronised between all 16pcs. they are completely far away from 3.65 protect limit. But slave inverter is day off :D without asking me. The inverters use same PV platform with same pcs PV modules. And I have no Failure or events about that, when I restart the inverters, S 02 starting to generate power.

Click to expand...

It looks like both solar are on holiday at 14hrs....
Lazy bastards hahaha...

As a test, can you reset both units to factory settings?

Just to be sure it holds, set this 3 times on each inverter.
Safe, exit, reboot / power off.
Reset again ..

I know, it sounds stupid.

If all is correct, battery should be standard lead acid, the annoying beep is there, and default Solar+AC.

Please be aware, standard lead acid setting will "overcharge" the battery.
Your BMS will need to step in.

You will see different behavior, then that will be "proof" that the previous settings didn't "hold",.

If it doesn't change anything (after 3 x reset and reboot each) please contact Sorotec.

Hello everyone,
and especially for @MikeSolarPT and @Dave21,

I'm new here and just getting started with the OffGrid system: Powland iGrid VEII 5.5kW 48V with WiFi device to RS232 + BatteryPack LiFePO4 120Ah 6kWh 16S (58.4V is the maximum; I will use in the range of 15% to 90%) + 9 panels (Voc =379V, Isc=9.88A). WiFi AccessPon is close and connected to the LAN.

And I also have a Raspberry Pi4 with HomeAssistant (MQTT add-on installed in HA) connected on the same LAN. The HA is far from the inverter.

I also have an Waveshare "RS232 to Ethernet" RJ45 converter on the same LAN.

I went through this discussion, but I haven't found a solution for my need yet: I need to monitor (only read) the values on the "Powland iGrid" inverter, preferably via a cable (RS232 to RJ45 converter). Receive data in HA and regulate charging (start/stop generator), alarms, etc.

Please, can you share with me your inverter integration via RS232 (what HW and firmware you use), configuration.yaml settings (device, sensors,...), or other configurations in HA?
I couldn't find a complete solution on GitHub.

I think it will help others as well.
I look forward to any helpful response.
Petr from CzechRep.

Brouk said:

Hello everyone,
and especially for @MikeSolarPT and @Dave21,

I'm new here and just getting started with the OffGrid system: Powland iGrid VEII 5.5kW 48V with WiFi device to RS232 + BatteryPack LiFePO4 120Ah 6kWh 16S (58.4V is the maximum; I will use in the range of 15% to 90%) + 9 panels (Voc =379V, Isc=9.88A). WiFi AccessPon is close and connected to the LAN.

And I also have a Raspberry Pi4 with HomeAssistant (MQTT add-on installed in HA) connected on the same LAN. The HA is far from the inverter.

I also have an Waveshare "RS232 to Ethernet" RJ45 converter on the same LAN.

I went through this discussion, but I haven't found a solution for my need yet: I need to monitor (only read) the values on the "Powland iGrid" inverter, preferably via a cable (RS232 to RJ45 converter). Receive data in HA and regulate charging (start/stop generator), alarms, etc.

Please, can you share with me your inverter integration via RS232 (what HW and firmware you use), configuration.yaml settings (device, sensors,...), or other configurations in HA?
I couldn't find a complete solution on GitHub.

I think it will help others as well.
I look forward to any helpful response.
Petr from CzechRep.

Click to expand...

I found a interface description in the net and translated it to German (find attached). Be aware that writing to the inverter is different to the document. The PSET command works, if you don't send <CR>/ODhex at the end. I've no idea why this is different to all other commands, but that's it.

Regards, Itschi

Hi @Itschi,
Thanks.
Is this communication for the SOROTEC Revo II Hybrid with Touch Screen?
What is the original language? Would there be an English version?

Brouk said:

Hi @Itschi,
Thanks.
Is this communication for the SOROTEC Revo II Hybrid with Touch Screen?
What is the original language? Would there be an English version?

Click to expand...

Yes, it's about the Sorotec Revo II / EASUN IGRID VE II which are identical devices. The original document was in Chines language but I don't have it any longer... However, try an auto convert using Google. If you have any specific question, feel free to ask me.

Flankerzo said:

well, they dont use same protocol, or mine is damaged i cant get comunication from POW-HVM5.5K-48V-V. Revo is responding with somethig if you send RSR232 2400baud, QPIRI /r in hex... but PowMr, absolutly nothing. I have tried RX-TX swap, 2400baud 9600baud, nothing.

In Slovakia, if you dont have certified inverter, you cant feed any power to grid, means 0W, 0VA. We have 4 quadrant eletricity meter, that sends reports every 15minutes, if Sum doesnt ads up, you will have visitors

Click to expand...

Hello Flankerzo. Unfortunately i have the same problem. I have Powmr HVM5.5 kw -48 model. I don’t know why but can’t check any stats with WatchPower(driver already installed CH340 chipset) and Com port connected. Also tried to lunch this system on Orange PI 3LTS(Debian). with in Home Assistant, MQTT on it and one project from https://github.com/ned-kelly/docker-voltronic-homeassistant. The Home Assistant works fine and also get all data, but with no value, because of the issue communication between OPI3 and inverter. I have tried lot of thinks with driver Usb-Seria(Ch340), network settings, etc. I will be very appreciate if you can help me to solve this communication problem.
Did you found maybe some solution?
I will also try to communicate with official supplier from Aibaba where i bought it.