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kw4np avatar image
kw4np asked

Is it possible to use values from VM-3P75CT AC Load Meter instead of Multi/Quattro?

I have a three phase system with a manually switched battery backup Quattro system that is only one phase. The Quattro is fed directly from the grid and a generator. The VM-3P75CT is connected to all of the loads and measures the energy being used by the loads regardless of the source (three phase grid or generator, and single phase Quattro connected to all three phases on the input). As currently connected, the VM-3P75CT is being used as a load meter, but when in load meter mode it doesn't show up on the dashboard. If it's configured as a grid meter, it works correctly most of the time as the Quattro is only used for extended outages, but when the Quattro is working the results are not accurate as the grid meter is apparently added to the Quattro output to show the loads in the dashboard, resulting in a doubled load figure.

What I would like to be able to do is select the AC Load meter as the measurement that shows up as the AC loads on the Cerbo GX and VRM instead of the Quattro. This seems like it should be very simple, and a similar question has been asked here. At the very least it seems like the other question should be addressed so we could see a sub-load on the dashboard.

cerbo gxEnergy Metervm-3p75ct
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kw4np avatar image kw4np commented ·

Is no one using the VM-3P75CT?


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kw4np avatar image kw4np commented ·
There's a similar question here and apparently pages does show it as load if the inverter is off. Unfortunately, I don't want to leave the inverter in standby all the time. Victron, this should be pretty simple. Can you give us an option to choose our load measurement, just like with battery measurements?
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andrii-podanenko avatar image
andrii-podanenko answered ·

You can switch meter role from Grid to Loads in Cerbo

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kw4np avatar image kw4np commented ·
Thanks @Andrii Podanenko , but have you tried to use the load meter function? It does work, but doesn't show up on the display of the Cerbo or the main VRM page. And there's no way to set it any differently. It seems like there should be an option to select the load meter as the default source of information on the loads for the Cerbo. But for whatever reason, if the Quattro is present, it always meters the load instead of the load meter. However, in this particular setup the Quattro is used as backup, so most of the time the loads are bypassing the Quattro. If I'm missing something, please let me know!
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