Hello
I wanted to know whether, on VM-3P75CT, it is possible to use only 2 of the 3 phases.
As it stands, one phase is managed by an autonomous system.
I want the MultiPlus 2 (with Ekrano GX) to compensate for only 2 phases and not take the third phase into account.
Thank you
What does that mean exactly?
You do have a threephase grid?
You could only install two CTs of the VM3, then the Victron system will automatically only compensate those two phases. But you would not see the third phase consumption in the Victron system. So to display the total consumption you would need another system.
Or you could feed the VM-3Ps measurment into NodeRed and in there only use two phases power simply added together, to then feed a virtual grid meter. For the total consumption i guess you would need to use a NodeRed visualization or some other tool, since VRM would not be able to show that nicely.
If you have a mutliplus on a single phase, that can see all the phases and phase compensation for all phases is enabled, it will try balance them all back to zero use, or the setpoint.
It can’t ignore one of the phases. The option is to look after it’s own phase or the some of all of them.
You could try, with your own integration, to adjust the setpoint so it does not compensate for the third phase. It isn’t very elegant though.
Else put a different meter on the phase you want ignored.
For your information
the following solution works
constant injection from the Zendure of approximately 150 W (background noise on this phase)
the MultiPlus remains in 3-phase mode but compensates for only two phases in background-noise mode, and compensates for all three phases in normal operating mode