Control the Multiplus second charge output

DIY
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1

Hi,

I just installed a new Multiplus 2000va in my motor home. The second charge output is connected to The CBE control unit and is basically a 12v signal indicating if 230V is connected or not. On my previous Mastervolt installation this output was only on if I had shore power connected. On my Victron it is currently always on, leading my main panel to believe that I always have 230v. This leads to a warning signal every time I turn on the ignition.

Can I control this output through the USB interface and the configuration software?

2

Could you use the programmable 12v relay with relay Assistant?

1 Like
3

Here is an explanation of how it is wired if you have not seen this.

https://community.victronenergy.com/t/how-does-the-multiplus-trickle-charger-work/98

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4

Ok, the it is my understanding that this output cannot be controlled through the VE Configure sw?

5

No you can not, as described it is permanently on and follows the main DC voltage. As noted above, feed it through a programmable relay via relay assistant to make it switchable.

6

I see, and for my product I only have one relay and would I then connect it to normally closed?

relay
relay1396×634 239 KB

7

Here s a link to some basic Victron info on assistants but no real detail.

www.victronenergy.com/live/assistants:overview_of_available_assistants

You may need to search around for more info.

Output from trickle charger goes to COM, I would connect the signal wire to your system to NO and program the relay assistant to close the relay when ac in is present. I believe you need a second assistant to open the relay when ac in is not present.