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

Thanks for reply!
Even for AC gen equipped with mechanical alternator this is really hard to avoid fluctuations. However, it is important to warm it up before putting any load on it and to make sure that approx. same amount of load is added on each phase.
Actually, tried hooking up another generator (single phase inverter) to my previous solar inverter and nothing happened... Solar inverter ignored such poor quality of AC power which is more suitable for power tools. I assume there should be some sort of protection on revo as well...
 
After spending a lot of time to get my IGRID VE II to do what I want by controlling it via the RS232 interface I'm now experiencing a new issue: About all 10 days the inverter goes to fault state with error "01" = "Bus voltage is to high" mostly short after sunrise (Battery mode, On Grid, EnPV/AC, 0A AC Charging). This causes the load to be disconnected :-( If I toggle the inverter On/Off switch, the inverter starts running fine again. Since I didn't find any solution so far, I'm checking the fault state of the inverter using the RS232 connection again and toggling the power switch with a relay. A workaround but not really satisfying...

Does anyone experience similar issues and how did you solve them? Maybe there is a setting (using the calibration program or RS232 command set) to increase the bus voltage tolerance etc.?
 
MikeSolarPT said:
Hi, there is many questions about the working of the REVO II series from Sorotec ( same model as EASUN IGRID VE II ).

After many questions to the Engineers, i finally got mine to work.

General Function - This inverter doesn´t like to work with a PV array with Open Circuit Voltage over 300volts. Be sure you set and configure your array to be under 300volts.

CT Limiting Function
- PV Open Circuit Voltage below 300volts
- having a CT sensor 100A/0,333volts
- The CT sensor must be in the correct direction, load displays ( - ) Watts, feed in displays ( + ) Watts. if wrong, just change the direction of the sensor.
- Working Mode - AC+PV with CT sensor Selected
- Ongrid Mode - Set to OFF

You the can calibrate you CT sensor in the other menu to match you load correctly.

Battery
If you are working with LIFEPO4 cells, in the battery menu , select USER and define Bulk and Float

If you have batteries, and you select AC+PV the battery will act as a UPS, only discharges if the AC power goes off. From my findings the PV only powers loads and batter, it will feed the grid with the remaining power.
I tryed pushing more loads and it got it from the grid, not from the battery, so i assume it is backup only mode.

I also got a software for battery voltage and amps calibration but i haven't tested it yet.

Monitoring
For monitoring, i use Jblance code in a raspberry pi. I got the protocol from this inverter and JBlance manage to put it in the software and it is working fine.

you can use Wifi Logger and the app works ok, but i as looking for more detail, that is what i get from graphana in home assistant.

Any help i can give about this inverter, just ask.
Click to expand...
Hey Mike, thanks a lot for the info.
I would be very interested to obtain the software for battery voltage and amps calibration, as I have two batteries connected in parallel (LiFePO4 Sorotech 100A 48V each). I had trouble in calibrating them and I still feel they are not alligned.

Would greatly appreciate your guidance.

Thanks.
 
Itschi said:
After spending a lot of time to get my IGRID VE II to do what I want by controlling it via the RS232 interface I'm now experiencing a new issue: About all 10 days the inverter goes to fault state with error "01" = "Bus voltage is to high" mostly short after sunrise (Battery mode, On Grid, EnPV/AC, 0A AC Charging). This causes the load to be disconnected :-( If I toggle the inverter On/Off switch, the inverter starts running fine again. Since I didn't find any solution so far, I'm checking the fault state of the inverter using the RS232 connection again and toggling the power switch with a relay. A workaround but not really satisfying...

Does anyone experience similar issues and how did you solve them? Maybe there is a setting (using the calibration program or RS232 command set) to increase the bus voltage tolerance etc.?
Click to expand...
Hi. I'm experiencing the same issue like you, and looking for a permanent fix. For the moment the only workaround that I did, was a time relay that disconnect PV between some hours. In this way I avoid sun rise. This is not help me if it's raining outside, and rhe error chould occur any time.
If someone else have a real fix for that, ai will appreciate. (0A charge, and Solar mode setting, not work for me).
 
Ronny China said:
If you guys wanna know more about Chinese inverters manufacturer, please contact me.
Click to expand...
Hello Ronny China, please share with us your experience about the SOROTEC REVO II here so that everyone can benefit- check above some questions about such inverter and let us know your feedback !
 
Ronny China said:
If you guys wanna know more about Chinese inverters manufacturer, please contact me.
Click to expand...
Sorry to say, smell's a bit wrong.

I get the feeling you're just an other Chinese reseller who found this forum and tries to make a buck out of it.
Nothing wrong with that, there is a special section for retailers.

Trying to "harvest soules"... Not OK.

Now this is of my chest...
Some of your insight might be helpful.

Registered today, this is the first post you reply on...
If you aren't here to get new sales, it would only make sense you have something with EASUN..

Personally, their crappy products have costed me $7.000..
Defective Inverter charging my 800Ah 48v lead acid up to 78v...
That took about a month before my batteries died...
EASIN (type error on purpose) didn't accept responsibility..
And the unit was returned to their local distributor for resell... (Really)
Never anything with the label EASun for me again.

Sorotec makes reasonable good product, for its price. Absolutely not perfect.
I haven't had any of the trouble living off grid.

Usually EASIN have no idea what boxes they move and provide 0 customer service and support.
There are a few knowledgeable resellers, who do go that extra mile. Sadly, they are an exception.

EASIN headquarters just doesn't care reselling an unit they know is roasting batteries.... Devils.... Care only about the sale.
 
Itschi said:
After spending a lot of time to get my IGRID VE II to do what I want by controlling it via the RS232 interface I'm now experiencing a new issue: About all 10 days the inverter goes to fault state with error "01" = "Bus voltage is to high" mostly short after sunrise (Battery mode, On Grid, EnPV/AC, 0A AC Charging). This causes the load to be disconnected :-( If I toggle the inverter On/Off switch, the inverter starts running fine again. Since I didn't find any solution so far, I'm checking the fault state of the inverter using the RS232 connection again and toggling the power switch with a relay. A workaround but not really satisfying...

Does anyone experience similar issues and how did you solve them? Maybe there is a setting (using the calibration program or RS232 command set) to increase the bus voltage tolerance etc.?
Click to expand...
Hello!
Did you find any correlation with high humidity or rain with Bus Over voltage error? Another question is related to the PV frames Grounding, I understand that Sorotec/Easun don't reccomend to Ground PV Panels, bit I'm not sure about what they mean, Frames, or Dc negative. This type of inverter is transformerless, and not galvanic isolated. Maybe this error chould be related to some Leakage.
 
Hyper2283 said:
Hello!
Did you find any correlation with high humidity or rain with Bus Over voltage error? Another question is related to the PV frames Grounding, I understand that Sorotec/Easun don't reccomend to Ground PV Panels, bit I'm not sure about what they mean, Frames, or Dc negative. This type of inverter is transformerless, and not galvanic isolated. Maybe this error chould be related to some Leakage.
Click to expand...
To my understanding the ground has only to do with frameless solar panels.
Many times it's impossible to not ground then.

Rails mounted on metal roof.... :)

High humidity, from experience i can tell you that doesn't have to be the issue.
In Thailand rain season it's extremely hot and humid.

I did have bus errors, due to other failure.
Usually (in my experience) bus over voltage error = new main board...
And while you are at it.. the rest..

A short on the MPPT can give this error.
A short in the AC can give this error.

Both instanties... Your probably cheaper to buy a new one
(And a lot faster)

If anyone needs.. i have a few controler and MPPT boards left over from previous repairs ..
Functional, no warranty :)
 
Hyper2283 said:
Hello!
Did you find any correlation with high humidity or rain with Bus Over voltage error? Another question is related to the PV frames Grounding, I understand that Sorotec/Easun don't reccomend to Ground PV Panels, bit I'm not sure about what they mean, Frames, or Dc negative. This type of inverter is transformerless, and not galvanic isolated. Maybe this error chould be related to some Leakage.
Click to expand...
No, that append on sunny days during Autumn under quit dry conditions. However, I haven't seen the issue in winter yet. Probably too little sun and slow rise of PV production in the morning...
 
Well, i have no version info on MPPT when i click on About button, it says Mppt Version V0.0.0 2000-00-00.
I had it opened, disconected cables from screen, LCD version is OK, V1.5.1 2022-07-01, Inverter Version V1.5.7 2022-06-14.
i was making sure to leave one 4 pin connected, cuz there are 2 but at some point i disconected it, and i think i connected them good, glue marks.

Any leads?

i saw some FW here Pv-0307-14-S3 is for mppt?
 
Flankerzo said:
Well, i have no version info on MPPT when i click on About button, it says Mppt Version V0.0.0 2000-00-00.
I had it opened, disconected cables from screen, LCD version is OK, V1.5.1 2022-07-01, Inverter Version V1.5.7 2022-06-14.
i was making sure to leave one 4 pin connected, cuz there are 2 but at some point i disconected it, and i think i connected them good, glue marks.

Any leads?

i saw some FW here Pv-0307-14-S3 is for mppt?
Click to expand...
It looks like the MPPT is working as designed, depending on your setup and connections.

It will not show a version number if the MPPT doesn't receive solar power.
At night, all Revo II units will show this information.


Besides this, not much to work with.
Not enough information.

Did it work before you removed the MPPT?

Did you follow the repair/ replacement guide?

Discharge the "bus" with resistor?

Did you check if the other end of the 2 pin wire is still connected to the main board?

Before flashing firmware, are you sure you have the right equipment?
I ended up buying "special" version of "J-Link" at Sorotec. ($45)
All China clones work fine for the display, bit will leave the MPPT bricked.
Bricked, till you receive the correct hardware to re-flash the firmware and all is fine again :)

If that doesn't work for you, i have replacement parts available ?
 

Attachments

  • Revo II replacement parts guide-1.zip
    15.2 MB · Views: 34
Frank in Thailand said:
It looks like the MPPT is working as designed, depending on your setup and connections.

It will not show a version number if the MPPT doesn't receive solar power.
At night, all Revo II units will show this information.


Besides this, not much to work with.
Not enough information.

Did it work before you removed the MPPT?

Did you follow the repair/ replacement guide?

Discharge the "bus" with resistor?

Did you check if the other end of the 2 pin wire is still connected to the main board?

Before flashing firmware, are you sure you have the right equipment?
I ended up buying "special" version of "J-Link" at Sorotec. ($45)
All China clones work fine for the display, bit will leave the MPPT bricked.
Bricked, till you receive the correct hardware to re-flash the firmware and all is fine again :)

If that doesn't work for you, i have replacement parts available ?
Click to expand...
Aha, if no power from PV than its ok to see 0. :whistle::whistle::whistle::whistle::whistle:


Right now i have PowMr 5.5kw hybrid connected, cuz Revo ii was feeding grid as virtual battery (living in europe, cant have that), i have seen quite different schematic where to place CT sensor on easun and on sorotec websites.

On easun they have directly in front of inverter, and no other things connected between inverter and CT.
But on sorotec they placed CT sensor different way, between CT sensor and inverter there were some apliances, CT sensor was placed on input from grid, that way it can power both Inverter and some apliances. And load side of inverter to PV powered apliances.
I hope you understand, english is not native language.

If i connected it sorotec way, whitch isnt doable for me, different rooms, not wanting to destroy walls fot this. wil the CT limiter work?:unsure:

PS. if someone know how to connect to PowMr via RJ45/USB for monitoring im all ears. It was easy with Revo ii (google git voltronic esp8266), but PowMr isnt responding to any commands via usb or RJ45, that i send from PC.:cry:
 
In China "Voltronic" makes most inverters and hybrid. And many, many brands OEM.
Including Sorotec with some models, not their Revo line.
It does make sense that they will use the same cominication protocols as Voltronic.

For the CT, I can't help you with it.
We live off grid so no CT sensors to play with:)

What I can tell you is that the passthrough capacity of the Revo II is limited to its capacity.
5500 watt is 5500 watt.. not 5600..
Probably sooner 5000 then over 5500.

For sure, you can replace or remove the resettable fuse.

The Revo itself can boost like 7500 watt if on solar and battery (for a short peak period)
Not while taking electricity from the grid.

*****

The Revo doesn't have a "Virtual battery".
It's battery less operation are a couple of super capacitors that can take some of the load, while the MPPT play catch-up.

It is limited. Largely limited...
Yes, you can operate without battery, but your biggest peak is about 6-700 watt.
Start the microwave to pull 1000 watt....
Overload.
Slowly increase consumption (when there is enough sun and Solar available) I was able to use 3500 watt without problems.

The steps can't be too big.

What county in Europe doesn't allow to have Internal buffer in a hybrid inverter?
 
well, they dont use same protocol, or mine is damaged :unsure: 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 :rolleyes:
 
Flankerzo said:
well, they dont use same protocol, or mine is damaged :unsure: 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 :rolleyes:
Click to expand...
Haha... The curse of the smart meters

You simply can set it to not feed anything to the grid at all in the display settings.
No CT (really) needed.
All that does is measure the amperage.
Hal sensor.
If the settings is 0A, all the sensor should do is confirm.

Should not be too hard.

Again, I haven't got grid, I only see the settings, not using them.

I was talking about Sorotec using the same protocol as Voltronic.

PowMR...
Several of their inverters are OEM Voltronic, not all.

I like their MPPT, just wish it could handle higher voltage!
And that one is GOOD.
Noisy, you should replace the cover with a large silent fan.
Besides this...its efficiency is amazing.

Ok, im an end user.
I've used 4 different types of MPPT, where 2 gave magic smoke way to early.
Hot Thailand with temperature above 40 in the shade isn't good for some electronics.

Besides the Revo that keeps working, the PowMR worked a long time, and its performance was the best of the 4.

Simple, robust, scalable, cheap and efficient.

And that ends my experience with PowMR :)

Google shows that PowMR talks
To EPever Tracer AN Controller via rs485 to USB cable.
Link: Epever

Screenshot_20230204_200350.jpg

This might get you in the correct path to be able to chitchat ??
 
Frank in Thailand said:
Haha... The curse of the smart meters

You simply can set it to not feed anything to the grid at all in the display settings.
No CT (really) needed.
All that does is measure the amperage.
Hal sensor.
If the settings is 0A, all the sensor should do is confirm.
..
Click to expand...
I tried this software, but nothing, with cables i have, tried usb and comport, i have RJ45-RS232 cable from revo, and its simple RS485 with ground, power, RX/TX. Thanks for try
 
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
 
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