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Megarevo RxLNA Discussion

What happens is that the anti-reverse is disabled, however it wants, it sends the current to the counter and the count is in reverse. On the counter physically. I don't get carried away by the graph. Only physically on the counter.
Now I am confused
If you don't want to feed back to the grid you should ENABLE anti-reverse.
You mention above it is DISABLED.

Can you show photo of setting on display on inverter?
 
Now I am confused
If you don't want to feed back to the grid you should ENABLE anti-reverse.
You mention above it is DISABLED.

Can you show photo of setting on display on inverter?
 

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I think you want active Island enabled also? You don't want to feed grid when it goes down.
Grid% is irrelevant in your case where you are not feeding a panel before the MR. If you are feeding a main panel between meter and MR then the Grid% will limit what it feeds the main panel when it gets to, in your case 80%, capacity of the inverter.

The manual from Signature Solar is the best I have seen but still very lacking.
 
I think you want active Island enabled also? You don't want to feed grid when it goes down.
Grid% is irrelevant in your case where you are not feeding a panel before the MR. If you are feeding a main panel between meter and MR then the Grid% will limit what it feeds the main panel when it gets to, in your case 80%, capacity of the inverter.

The manual from Signature Solar is the best I have seen but still very lacking.
The island setting would be a good thing to test. I have a feeling that not selected or having it selected for enable will both work.
 
The island setting would be a good thing to test. I have a feeling that not selected or having it selected for enable will both work.
Any inverter connected to the grid requires anti-islanding functionality.
That is not something you are allowed to turn off.

I think you want active Island enabled also? You don't want to feed grid when it goes down.
I do not think this is what you think it is , see above.

I think this has to do when this inverter is part of an "island" and freq shifting is used to control the amount of power generated.
If this unit is down stream of another hybrid inverter.
But technically the grid could do freq shifting as well, so this is again an odd setup option IMO and we should ask MR for an explanation.

Grid% is irrelevant in your case where you are not feeding a panel before the MR. If you are feeding a main panel between meter and MR then the Grid% will limit what it feeds the main panel when it gets to, in your case 80%, capacity of the inverter.

The manual from Signature Solar is the best I have seen but still very lacking.
I have been looking at and is basically is the general version I have from BlueSun (one of the OEM's) but with some screenshots of the display.
Full with spelling errors and wrong config examples.
 
Is anyone else seeing this?
I put my MR on "self consume"
Today my battery charged up a lot (not to full) and when sun set, it started using the battery again until it hit the low limit setting.
When I look at the meter to the grid I see this (when it is dark outside, so no PV support)
Screenshot from 2023-01-01 20-10-48.png
It is pushing 700+ watt into the grid.
That is not what I would assume a setting with "self consume"
Is anyone else seeing this kind of behavior as well ?
 
Is anyone else seeing this?
I put my MR on "self consume"
Today my battery charged up a lot (not to full) and when sun set, it started using the battery again until it hit the low limit setting.
When I look at the meter to the grid I see this (when it is dark outside, so no PV support)
View attachment 127434
It is pushing 700+ watt into the grid.
That is not what I would assume a setting with "self consume"
Is anyone else seeing this kind of behavior as well ?
Mine does the same thing but when on peak shift. Self consume doesn’t do that for me.
 
I contacted MegaRevo about the issues I have with Self Consume mode.
They sent me the following new firmware as a reply.

Let me know if/when someone has flashed it.
Would like to know what the version shows on the display.
I won't be able to flash it until probably 2 days from now.
 

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I can give it a try. My latest firmware before this compares as below:

V14_20220907 (old)
V19_20221210

v1.4.13.B02D02 (old)
v1.4.13.B03D06
 
This version has parallel mode but does NOT have generator option.

I am also getting alarms:

06: Grid low vol
08: Grid low freq

(edit: these eventually went away)

Which makes sense since I'm off-grid, but these don't occur on the previous version.


Some changes..
Setting menu now has option for RSD Switch, and setting the CT Ratio. Anti-reverse is now called anti-reflux. Run setting now includes grid reconnect timer.

20230103_173908.jpg20230103_175037.jpg20230103_175017.jpg20230103_175011.jpg

A few more issues which apply to my setup. Shutting down or disconnecting the slave inverter will shut down EPS of the first inverter. Old firmware didn't do this, and its an issue for me because I used to be able to restart either inverter without losing power to the loads. Also, I cannot set parallel charge voltages separate. This normally wouldn't be an issue, but one of my inverters reads 0.5v higher and I'm not sure how to recalibrate it. I tried in the stream software, but it didn't save the setting. As a result, the slave inverter will stop charging the batteries earlier because it thinks the charge voltage has already been met.
 
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