This site is now in read-only archive mode. Please move all discussion, and create a new account at the new Victron Community site.
I've purchased, but haven't installed, a Multiplus 24/2000 to connect to my pv system.
I'm concerned that it'll backfeed the grid and have read there's a setting which when changed will allow backfeeding the grid.
Is there a way to prevent it from backfeeding the grid even though the "mains" has no power? (LOM)
Thank you
LOM is there to prevent exactly that.
No mains, No feed in.
Anyway, unless you install the ESS assistant backfeeding cannot be selected.
That's good. Is LOM a setting? If it is then is there an internal relay which will completely disconnect AC wires that might be able to back feed?
I think I found the answer and hope this applies the Multiplus-
LOM is an automatic process that detects a loss of the mains/network/grid supply. After the detection, the inverter/charger will open its back-feed relay, making sure there is no live AC voltage on its AC-inputs, and anything connected to these inputs.
Unless you plan on using ESS, back feeding is not even a possibility. Even with ESS back feeding can be disabled.
if you do not enable ESS, you cannot feed in. 2 print screen from the ESS configuration.
Even if you enable ESS, you can restrict feed in to the grid / to the AC IN
By default, your Multiplus will not feed in to the grid. Don't worry, be happy and connect it.
Hi danqcca,
What's your inverter?
I'm looking for this setting, but in my case I want to backfeed, or better, supply my household loads so as to reduce draw from the grid.
Does the victron automatically feed the loads at it's output or do I need to add an external current sensor to do so? I'm looking into the original multiplus. Thanks!
MultiPlus 24/3000/70-50 120V VE.Bus / SKU:PMP243021102
What you want to do is what i do. In my case it's a manual process. I must adjust the injection manually. I monitor the electricity my provider give me and i inject what i need to bring it to 0 watts. I use Iotawatt in my main panel but is CT/information cannot be used by the Cerbo GX. I have 3 things that are not on the AC out that i want to cancel/lower their consummation, garage 60w, fridge 120w, dehumidifier 600w. I ear them starting and stopping.
External sensor will be the way to go but i didn't explore that route. It's in my to do...
My main goal will be : to put something like a Energy Meters VM-3P75CT and find a way to prioritize AC load on the output (done by default) of the MultiPlus, then inject to bring to 0 w (adjustable) my AC L1 consummation and the remaining to go in the battery but never use battery energy to supply the load on the AC Input.
