Since about one year I have been operating a self built battery with one multiplus II 5000VA an now I want to expand to a 3 phase system with three multiplus units. Currently I have wired the remote on/of to a kind of emergency stop button in order for other people to be able to shut the system down in case this would be needed. Now I would like to switch all three units off with the same function.
I’m talking about connector J in this diagram: https://www.victronenergy.com/media/pg/MultiPlus-II_230V/en/appendix.html
I cannot find much information about this connector, other than that I can connect a switch like I have now and this works very well.
I did find this video explaining a bit more about the remote switch on a different product: https://www.youtube.com/watch?v=vbyLCyHKYGk
On the Multiplus I don’t find the “L” and “H” designation for this connection though so it seems to me that I cannot turn the unit on by connecting “L” to ground.
My question is whether I can just connect connector J on all three units in parallel and then put the switch in between? This would create a direct electrical connection between all units though…
I would really appreciate if someone has more information on whether or not this is allowed or how to make it that I can have one stop button switch off all three units at the same time!