I built an off-grid system that’s been running for a few years, and today tried to change the inverter we had for a second hand Quattro 48/10000.
The inverter worked, but the inverter was not successfully communicating with the Cerbo (the device didn’t show at all on the screen). I was using a Victron VE.can cable, the same one I have been using with the old inverter.
I updated the inverter firmware to the latest version, which made no difference.
I then tried using a Victron MK3 USB cable between the inverter and Cerbo, and this resulted in some success. The device now shows in the device list, and on the main screen, but on the main screen there is simply a question mark in the inverter icon.
Can anyone shed any light on how I can improve this, and why I needed to use a MK3 cable rather than the usual RJ45?
The Quattro is not particularly new, I think it’s a 2015 model. Does this make a difference?
First check the serial number for the production date to be sure how old the device really is.
Also check the sticker on the processor to be sure it is the new one starting with 26/27 digits.
What software version is installed on the Quattro?
Use MK3 dongle with PC an VictronConnect to check and update firmware before connecting such an old device to the cerbo.
I have checked the serial number, and it’s marked as a 2015 model.
I already used the MK3 dongle and VictronConnect to update the firmware to the lastest available.
I didn’t know about the different processor generations, but from a quick Google search, it seems that 2014 was the changeover year to the newer 26/27 processor, so I think I should have the newer version. I will be on site today and I can check.
Yes, it is the latest one an the firmware is also up to date. So from this point, there is nothing what should cause the problem.
Also the interface seems to be intact, because it’s working fine with MK3 dongle.
Just to be sure: The Multiplus is connected to one of the two VE.Bus ports on the Cerbo, right?
In your initial post you wrote VE.Can…
