I have a 3 MPII for a 3 phase installation. Use DESS. The sum of the 3 phases at Grid side is incorrectly shown in dashboard, while it is correctly displayed on the Remote Console. This only happens when there is PV power. If PV power is 0W, it all is correct.
Anyone an idea? Bug?
That doesn’t seem correct either…
Input: 2166 + 2852
Sinks: 85 + ~3700
That’s about 1200W difference. To much to be considered efficiency losses.
So, would need more details about your system. What kind of meter do you use, how are things wired, whats on ac in / out of the multi?
Hi @dognose , thanks for your reply.
My setup is as follows:
Let me know if you need more details.
Kelvin
Thx, that helps a bit.
So, the system is usually having each inverter running with the same inverting power.
That means, with a Battery Charge of 3779, it should be about 1259 (DC) per Inverter or roughly 1384 AC on the AC-Side of each inverter. (which can be achieved due to multi-phase balancing)
Combined with consumption that should have lead to grid values of -785 / 1451 / 1428 and in Total 2094 for the grid.
This matches the reported values for L2 and L3 quite good - but L1 is wrong. So, it is related to the solaredge, and this matches your observation, that this only happens, when PV Power is present.
So, to figure out more precisely what’s happening it would be helpfull, if you generate an advanced graph for the AC IN and AC OUT values during that time.
something like this:
Eventually that helps to figure out, where values are not “as expected”.
No problem. Find below the requested figures. I tried to find the exact moment 11.23 mathcing with the pictures from the initial post. But can’t come closer than 11.22. But seems close to numbers of 11.23
If I look at the graphs, it seems all quite logic. The remarkable aspect is that the right numbers are displayed on the remote console at the same time-spot.
Thanks for your effort again!
The AC-Input of L1 is “way off”.
And that is about the difference of -785, as my thought outlines.
So, what I see, that your system also says “0” Consumption on L1. A wonderful 0 is very suspicious, that indicates that a “negative” consumption is calculated, and therefore displayed as 0.
From the Data - and the assumed connection paths - The system should conclude: 2169 Solar, 1368 into the multi and 6W to grid, the consumption musst be (2169-1368-6) = 795 - which again is the value we are missing on the AC In side.
Data shows, it is connected to ac-out of L1. But eventually it is configured to report it’s feedin on AC-IN? Then, the maths for consumption would conclude -1368 consumption and just display that as “0”.
And for the grid, what happens then is:
Can you check, that your solar inverter is configured to be connected to AC-OUT?
Settings → PV Inverters → Inverters - make sure that is set to AC-OUT.
If that IS Set to AC-Out: Change it to AC-In, save, wait a couple of seconds, then change it back to AC-Out to make sure the setting propagates again through all involved services and stuff.
Then, refresh VRM (F5) and see, if stuff is fixed. (Depending on the logging interval, it may take some minutes until vrm displayes a change)
Hi Dognose, you are amazing 
Indeed, my PV inverter was associated to AC IN. Changed it and now all numbers are correct. I’ve looked a million times to the settings, but missed this one. So simple…
Thank you.
