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Experience with power values #8

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rsaemann opened this issue Jan 29, 2023 · 2 comments
Open

Experience with power values #8

rsaemann opened this issue Jan 29, 2023 · 2 comments
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help wanted Extra attention is needed

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@rsaemann
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Dear users,
I do not know how to interpret the follwing power values for each of the R/S/T: 'Inv Power R' / 'EPS Power R' / 'Load Power R'
In my case 'EPS Power R' is always the same as 'Load Power R', even if 'Inv Power R' is totally different.

First I thought 'Load Power R' would be EPS+Inv, but it is not.
Do you agree with these findings? I think I should disable the Sensors for 'Load Power R'/'S'/'T' to save modbus call actions.

@rsaemann rsaemann added the help wanted Extra attention is needed label Jan 29, 2023
@trstnbsch
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Hi,
in my case EPS and load are almost the same (see below).
However, I have not yet tested it in EPS-mode.

What RS485 code do you mean by Inv Power R/S/T?

screenshot

@rsaemann
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rsaemann commented Mar 1, 2023

Thank you, trstnbsch.
I think the small variation comes from the small time differences at which the values are read from the inverter.
I believe the calculation of EPS power is a complicated thing, if you do not know how much power comes "into" the inverter from the grid to be "outputted" through the EPS out.

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