Hello, I have two 10kva Multiplus II set up independently on two of my phases. They are not synchronized and simply provide power to each of the two phases separately and independently. One of them is connected to my cerbo gx via one of the VE Bus ports and I can see it in VRM, Vconnect, and remote monitoring. How do I connect the other Multiplus II to the cerbo gx so I can see it in VRam and other platforms as well. Will any of the below method work?
Daisy chain both MP2 using theVE Bus and connect last one in the chain to Cerbo gx
Connect both MP2 to the two VE Bus port on my cerbo gx.
Many thanks for any advice you can provide.
Regards,
Rickyman
@eadah
No you canāt daisy chain them on the ve bus.
And no, you cant use the separate port either.
A gx is designed to control one ve bus system at a time. Inverters can only be in one ve bus system if they are identical units and programmed as such (split phase, three phase, parrallel).
That being said, you can gain basic monitoring if you plug the mk3 to usb adaptor into the MP2 and then to a usb - but there is no ESS control.
Alexandra, thanks ever so much for taking out time to provide these very detailed and clear answer.
āAll connected systems will be taken into account for Energy consumption and
distribution calculations (kWh graphs on VRM)ā.
My remaining confusion is with the section above from the cerbo manual. If I use the MK3 to usb connection to add my 2nd mp2 to my cerbo. Will I be able to see its energy consumption and other calculations separately in VRMā¦as I do for my existing MP2 connected to my cerboās ve bus? I saw in a document that it may simply be added to the existing ve bus product so I may not see its values separately. Many thanks for your help clarifying this.
I think it varies from product to product.
It wont be separate information. If you want separate information its best to just have a separate system.
You can i think graph activity separately in the vrm advanced. Not sure there as i have not tried it.
But not on the overview and dashboard.
Alexandra, thanks ever so much for your quick response. plse this is my last question and my sincere apologies in advance for the bother. If I want to set up my two 10kva MP2 as split phase system. Which of the following options will give me 230v on outputs of each of them (separately):
Split phase 120 degrees
A total of two units are required
Split phase 180 degrees
A total of two units are required
Split phase 240 degrees
A total of two units are required
Split phase 180 (Auto)
A total of two units are required
If I can achieve 230v split phase set up on each of my MP2. It fundamentally resolves all my issues. I have been trying to figure this out for last few weeks without any luck and Iām practically going gray. I would have opted for 3 phase multiphase but I cannot get an additional MP2 to the 2 I already haveā¦out of stock in my country. I will be eternally grateful if you can point me in the right direction. Thanks ever so much
Alexandra, thanks for your help so far. Above question is resolved. No further help required.
For a system designed to deliver 230V per phase like my MP2, a 180-degree phase shift means that each inverterās output is perfectly opposite the otherās, potentially creating a stable 230V output per phase.
@eadah
Sorry i missed your replies.
Most phases on a 3 phase system are 120Ā° out. So if you are using l1 and l2 then 120Ā°
If L1 and L3 then 240Ā°. Etc.
But 180 will work too. You may see overloads on grid connect and disconnect during re-sync.
Thanks Alexandra,
Indeed 120 degrees will resolve potential grid sync issues you correctly outlined in your note. However, I rarely connect to grid so will stay with 180 degrees as more appropriate for two phases and neutral cancellation will be useful for cable consideration. However as soon as I can get a 3rd MP2, I will revert to 120 degrees as you suggested.
You have been super helpful. I would have been lost with your help. Really appreciate. I will install my system in the next 2-3 weeks. I will come back to after then with the great news that all clearš. Many thanks again for your help.
@eadah
Sorry i missed your replies.
Most phases on a 3 phase system are 120Ā° out. So if you are using l1 and l2 then 120Ā°
If L1 and L3 then 240Ā°. Etc.
But 180 will work too. You may see overloads on grid connect and disconnect during re-sync.
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