Multiplus II 12v 2x120 & Cerbo GX Configuration Deep Dive 

Unfortunately, connecting to the Cerbo GX with the VictronConnect App (via Bluetooth) is very limited in the functionality. You can't see any status of loads/charge states/etc. It really only allows you to configure network settings and go to the online VRM portal. You could potentially connect to the web interface on the CerboGX, but I've had issues getting it to work properly. In my opinion, to get full functionality, you pretty much have to also install the touch screen. It's strange how Victron sells all of the components separately, but likely the reason they do it is they make two different sized touch screens available to purchase. If you have the SmartShunt, you can also connect directly to it via the VictronConnect app via Bluetooth to see battery charge state and loads. Obviously that option won't let you change input current limits and other settings, but if you just want to check on your battery state of charge without a touch screen, that would be the way to go.

Me again! Apologies, I’ve had a fiddle and found it. FYI if any one asks its under setting>Display and Language>Show boat and motor home overview

@@aljotock good to know! I actually didn’t have to change anything to get it to appear on mine, so I was going to have to do some digging to figure that one out. Glad it was simple!

Hi Mike -- can you clarify which screen you're referring to? Maybe give me a time stamp in the video of which one it is and I can try to help you get there.

Thank you Ricky it’s at 21 minutes

@@mikenorris2346 oh, you should be able to just swipe to a new page and it should appear as you cycle through. I don't remember having to change anything to get that display where you set the current limit.

Hello Ricky, I go it! The "showboat & motorhome" function was not on in the display section on settings, Yikes! I been chasing that one for a few days now. Best

@@mikenorris2346 oh, good deal! I will remember that one!

You shouldn’t need one to get it powered up the first time, but to configure all of the charging parameters, you’ll probably want to have one.

@@RickysHP thanks again, for the video, I will be receiving my MK3 today and setting up the DC volts to charge at a higher rate now that I have added 1 more 300ah lithium. Now I just need to contact the company who sold me the batteries to get the charge profile. Thanks sean

The Cerbo GX does connect directly to the Multiplus, and you can control the Multiplus from the touch screen of the Cerbo GX. The Victron app can also be used, but it is on a PC, or a mobile device, so you would need to connect it to the Multiplus itself. I have not yet tried to connect the USB-to-VE adapter dongle to the CerboGX and then reach the Multiplus from there, but I'm guessing it would work, because the application does successfully find the Cerbo and the Multiplus upon launching it while connected to the Multiplus.

@@RickysHP My plan is to install a Cerbo Gx without the GX Monitor, so i need to control Multiplus trought the victron connect app, from my smartphone or ipad.

@@DaniloMongelli I’m sure you can, but the things you can change may be a bit limited. I do highly recommend considering the touch screen, because it’s so clean and instant, plus you can monitor battery charge level, loads, etc all from it.

I have only done it with the dongle. Keep in mind, any time I’ve updated the firmware of the inverter, it has wiped the entire configuration, so I’ve had to re-program the battery charge profile and such afterward, so be sure to save all of that off somewhere before doing an update.

@@RickysHP Hey thanks for the response! So basically I found your video helpful because I currently have a 120x2 Multiplus 2, and when I plug in shore power I get a very strong humming sound. I reached out to battery born who I got my victron products from and they told me they would walk me through reprogramming the inverter after I update. I’m just trying to decide if I should just get the dongle or if I should spring for the cerbo for the nice monitoring features.

@@Dubera mine had such an awful humming noise that resonated throughout the entire RV when I first got it and the firmware update cured it for good. The dongle is pretty inexpensive, but the Cerbo GX and the touch screen are SO incredibly useful, I would recommend also getting it to control the whole system. Once you have the touch screen, you will never have any need to touch the inverter itself in the future to change modes and set current input limits (such as if you had to plug in to a 30amp connection or a 15amp circuit at someone's house) ever again.

Yes, they do! www.solar-electric.com/victron-multiplus-ii-inverter-charger-24-3000-70-50-2-120v.html

This particular unit is already split-phase... It has two 50amp legs of power in and out, just like a standard 50amp RV has. The inverter output is 3000va, which is around 2400 watts, give or take, depending on temperature.

This page should help you get there: www.victronenergy.com/live/ccgx:root_access From what I remember, when it says to press and hold the right arrow, you basically slowly swipe your finger to the right on the touch screen. If you remote access into it with a laptop, the arrows will be available on that interface for you to do that same thing.

Thank you

I was able to just gravity feed it down the wall. You can also use a metal fish tape to do runs like that, too.

You mean supply power from the batteries back out to the “shore power” source? It doesn’t allow for that, unfortunately.

@@RickysHP Thanks so much.

I believe there was a “remote management” or similar setting that gets turned on via laptop when initially setting it up. I am not near my rig at the moment, but can double check for that this evening or tomorrow, if you are still having troubles.

@@RickysHP thank you that would be great if you could thank you

@@RickysHP do you remember if it has to be done thru a laptop because I just set mine up thru the screen?

@@richardgollar6300 I’m pretty sure that’s where the setting was. I’ll double check for you, though.

Okay, so I just confirmed, when you use the Victron Connect on the laptop, there is a setting under General that says “Current limit overruled by remote.” That is what needs to be turned on to be able to set the max current limit on the remote touch screen.

You need to add the temp sensor probes to the Cerbo GX. I have a link in the description of the video to the temperature sensors. Once you have those and connect them, it’s just a matter of turning on the analog temperature inputs in the configuration on the touch screen. The latest firmware for the Gerbo GX now allows you to natively choose Fahrenheit versus Celsius without having to go into super user mode and manually enter the calculations.

@@RickysHP - thanks!

Mine is only showing voltage on L1 because it’s on a 30amp connection. Once connected to a 50amp split-phase connection, it will automatically display the voltage on both. Also, because I’m using a 30amp-to-50amp adapter, it puts the same phase onto both legs, but the MultiPlus will only connect to and draw power from L1 in that situation, then output on both legs back to the power distribution panel.

I didn’t make myself clear sorry for that. How did you get those values to display on the touch screen. Like in your shore power side you have the power coming in then below that it shows what each leg is seeing. My display doesn’t show that

Yes! They do. Here is a link to all of the app version downloads available for the VictronConnect software: www.victronenergy.com/support-and-downloads/software

@@RickysHP Sorry but that won’t change a lot of my inverter settings? 😳 I wonder if getting that screen with the settings on it will change it? Victron sure doesn’t make it easy for Mac users! I don’t want to buy windows and learn how use it just to change my settings.

@@benjones8977 Oh, sorry to hear that. I guess the MacOS version is more like the mobile versions of the app where they don't let you change a lot of settings. Are you connecting to it via a USB cable? Or are you connecting via Bluetooth? It could be a Bluetooth limitation, perhaps? Maybe you can run Windows in Parallels or some other virtual machine on the Mac that you have to be able to use the Windows version of the software? Maybe borrow someone's PC laptop for an hour to set everything up?

@@RickysHP Too bad I can’t change things with dip sticks, but I really don’t understand those. Thanks for your help I will keep searching for answers. 🖖

@@benjones8977 ahh, the good old days! I totally understand where you're coming from. Best of luck, and hope you come up with something easily enough! The good thing is, once those settings are set, and you get the firmware updated to a stable point where you are happy with the inverter and how it's working, you shouldn't really need to do it again.

In my opinion, the Cerbo GX with touch screen is almost essential to have all of the functionality of the system.

I had many issues with the plus GX rather than with the cerbo outside. This las has more capacity to process data due the hardware. Also many others capabilities from cerbo gx that you won’t find on multi gx.

@@shameelali2549 it supports that. Were you asking something in particular?

@@RickysHP u sort of didn't go into any detail.

For the purposes of this discussion, there isn't much difference, but yes. Thanks for the clarification. I'll update the title.

where?