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REVO II 5,5Kw / EASUN IGRID VE II 5,5KW work only in on grid mode

Evgeny84

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Jul 11, 2021
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Hello I just resive my Easun Revo II inverter with CT sensor .I connect it by the schematic diagram from the manual.I don't have battery and I want to use it only In on grid mode.I trying all settings but the inverter is still feed power to the grid Wich I don't want.How can I adjust the wright settings. Thanks in advance.
 
Might be worth searching the forum for "REVO II", there are multiple threads about this type of inverter.
 
Something else in idle the inverter is consuming around 1A in idle from the grid without solar panels without any load . That's are 230W .
 
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helllo @Evgeny84,

i'm not sure what you are trying to accomplish.
it looks like you want to use the on/óff grid inverter as a grid tied system.

in that situation, you bought the wrong product.

1A is probably the lowest measurement from the CT meter.
my 3 x 3200 watt Revo II have each about 50w own consumption.
I have no grid, so i can not tell how much it will use on grid.
easy way to tell is feel the heat when it tells you its using 1A... 230 watt is a lot of heat.

I know that my numbers are off, MPPT is showing 5000 watt solar, my Ammeter shows 4500W.
that matches also better with the rest of the numbers in the display, and i cant not feel 500 watt being lost on heat.

remember, energy can not come from nothing or disappear.
Usually electric power unaccounted for is lost via heat, that can occur due resistance, or ...
well many options :)

if you put 5000 watt in, and total readings are under 4500, you should feel a lot of hot air.
while 230 watt isnt 500, it still enough to heat up significant!

please provide a drawing on how you are planning to use the Revo II, and what you expect the behavior to be.

Off grid, the battery less operation works great, for smaller loads.
starting my electric 2000 watt pump wont work, taking smaller steps from 500-1000 watt up to 3000 watt, is not a problem, as lomng as there is enough solar production.
it does have a buffer battery, not one capable of buffering 2000 watt.
 
I checked some Information, and I made an mistake..

The Revo II can charge 60A, about 3000W from the grid.
2022-10-4 7-29-50.jpg

Voltage for charging the battery is maximal 60V

2022-10-4 7-29-7.jpg

My settings that work for me to keep the bateries and BMS happy are:
2022-10-4 7-29-37.jpg

Work mode settings:
2022-10-4 7-28-11.jpg

Again, I have no grid, so setting it to solar or AC+ PV (aka solar) doesn't make any difference in my setup.

When you have grid and CT connected, things probably are a lot different :)
 
helllo @Evgeny84,

i'm not sure what you are trying to accomplish.
it looks like you want to use the on/óff grid inverter as a grid tied system.

in that situation, you bought the wrong product.

1A is probably the lowest measurement from the CT meter.
my 3 x 3200 watt Revo II have each about 50w own consumption.
I have no grid, so i can not tell how much it will use on grid.
easy way to tell is feel the heat when it tells you its using 1A... 230 watt is a lot of heat.

I know that my numbers are off, MPPT is showing 5000 watt solar, my Ammeter shows 4500W.
that matches also better with the rest of the numbers in the display, and i cant not feel 500 watt being lost on heat.

remember, energy can not come from nothing or disappear.
Usually electric power unaccounted for is lost via heat, that can occur due resistance, or ...
well many options :)

if you put 5000 watt in, and total readings are under 4500, you should feel a lot of hot air.
while 230 watt isnt 500, it still enough to heat up significant!

please provide a drawing on how you are planning to use the Revo II, and what you expect the behavior to be.

Off grid, the battery less operation works great, for smaller loads.
starting my electric 2000 watt pump wont work, taking smaller steps from 500-1000 watt up to 3000 watt, is not a problem, as lomng as there is enough solar production.
it does have a buffer battery, not one capable of buffering 2000 watt.
So thats why am having this loss, 550w shows as incoming from panels,

Then only 310w as going to charge battery, no load.
So 240w goes to waste????. That is huge.


2nd question, what would make 21 x 250w panels produce only 740w in bright sunlight?.
Lithium battery not full.

Used to work well b4
 
So thats why am having this loss, 550w shows as incoming from panels,

Then only 310w as going to charge battery, no load.
So 240w goes to waste????. That is huge.


2nd question, what would make 21 x 250w panels produce only 740w in bright sunlight?.
Lithium battery not full.

Used to work well b4
First question,

Yes, correct.

I noticed with Ammeters that the first 100 watt generated with the solar panels vanishes before the Mppt starts providing Energy to the Revo.

Second step is the own power consumption of the unit.
That is for a 5.5kw unit about 100 watt.

Don't feel bad about it.
A Victron 3kw using 50 watt also just to have AC "stand by" (output life, except noting using the power)
off-grid garage showed this in a video about 15 monthe ago.

There is your 200 watt standard losses.
The other 40?
Probably some measurements inconsistency.

21*250 or probably 3*7 36v?
7*36=252 volt, right?
5250 watt theoretical.

my experience is that even with +7000 watt solar the Revo II provide max 4200-4400 (different units, different results)

while you miss out on the 2-3 hours absolute peak, due the "overcapacity" you reach that 4200 soon, and stays long.

I now have 3 sections of 2*7 345w
(As I use 3 x Revo II)
this gives be the best performance.

Usually my 54 kWh battery is recharged before noon.
It's the rainy season that need the "Overkill" on solar.
Living off grid does have its benefits and drawbacks.

One of the benefits is that I don't have to deal with all the hassle that seems to be there when you connect to the grid.

"2nd question, what would make 21 x 250w panels produce only 740w in bright sunlight?.
Lithium battery not full."

- i assume you are connected to the grid.

Advice that I've given before and will again, disconnect from the grid.
set it to solar only and see if the problems are still there.
Probably they strange behavior is gone.

As I don't have grid, I can't really help in fixing it.

A work around is using an automatic transfer switch, where the Revo is the main power source.
And you use the grid as backup power source.

Downside of this solution is that you can not feed to the grid.
Nor charge the batteries via the grid.

But... It will work :)

If you aren't connected to the grid, you probably have the wrong battery profile.

Setting it to lithium is S15 or 48v
Not 51.2v

To get the correct setting is a bit tricky.
1. Choose lead Acid, safe , exit, reboot
2. choose lithium, safe, exit, reboot.
3. Choose "user own setting" i set 54 and 54.2v (if i remember correctly, need to Check but not at home now)
Anyways.. really close toget and it gives be about 90% charge.

Sadly.. the Revo doesn't always register correctly.
It will look like all settings are registered, but it will charge up/over 58v... (!!!)

Steps 1 to 3 probably will correct this.
Sometimes several times is needed.
It's working now, so i don't play around with it because of this risk.

My best guess is if you are not connected to the grid , you choose lithium, aka S15 and you have S16
 
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i am having error code 03 on my revo ii 3,2kw inverter. curious to know if this is a common error , possible cause and solution
 
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