Hello all, I work with Victron products in integrated hybrid generator systems. These systems use Quattro inverters, Cerbo GX and GX Touch 50, and have generally been straightforward to work with. They run MG batteries with a 1000A MG Master LV for BMS.
One of my systems had 3x Quattro 48/5000 configured in 3-phase. This is our most common setup and I’ve replaced and reconfigured like-for-like inverters multiple times without issues.
I’m swapping these out for brand new Quattro 48/8000 units. After checking all rating of cabling (doubling up), BMS, and contactors I got everything connected and started configuration via VictronConnect. Here’s where things went sideways:
1. Firmware consistency issues Had a lot of difficulty getting all three inverters onto the same firmware. Even after updating, VictronConnect kept throwing errors saying firmware wasn’t consistent across units. Took around four update attempts before this finally resolved itself.
2. System configuration issues Went through the usual phase assignment process and got the green tick, but after VictronConnect refreshed it would display an error about a multi-phase or parallel system being detected, with options to check connectivity, update (which confirmed up to date), or restart config. Went through this roughly six times with inconsistent results, occasionally it would let me through to the settings page, but the inverters were always showing as OFF or in a fault state. These are brand new units from our distributor so I don’t believe they’re faulty.
3. GX errors On the GX Touch we’re getting:
#3 Expected Devices Error
Quattro showing in the device list with state variously as Unknown, Blocked, or OFF
#10 System time sync error often appears to just be a secondary error tagging along with the others
I’ve tried redetecting and restarting via the Cerbo multiple times with no change. Tomorrow I’m going to try Quick Configure rather than VictronConnect to see if that makes any difference.
You need to set it up with ve quick configuration/ setup.
You appear to have incorrectly configured them as standalone systems and not a 3-phase system.
Thanks for the speedy reply. I will try this asap and hopefully it’s as simple as this.
I assigned each phase via the blinking lights L1 L2 L3 etc so I don’t think I’ve configured as standalone but maybe it’s confused itself
Seems strange as I have reconfigured other 3 phase systems using VictronConnect in the past. I used to use quick configure and my distributor recommend I change to victron connect…
Most still use the usual tools, support was added to VC - see video below - but I would still stick to tried and tested means. Usually assistants are needed and VC can’t do those.
I started again and set up the system via Quick Configure. It started off looking good, but not much has changed…
It all looks good for approximately 40-60 seconds then turns off, the lights on the inverter start cycling and on the GX screen the Inverter shows as off. Often displaying time sync error. It will then magically turn on again, work for 30 seconds, turn off again. Will do this cycle about 3-4 times before the inverter goes in to fault condition and gives up…
I tried loading the settings from the previous 5000VA inverter via VE Configure 3 but this hasnt changed much. Does the same thing
thanks for your help on this one @nickdb the split phase isolation helped me know where to look. Turns out the little remote connection port with the 3x bootlace ferrules on the top section of the inverter was loose, I suspect I had accidentally pulled on the cable hard enough or something. Once I had cleared that up I started from scratch and everything went smoothly… just completed 45 mins of rigorous load bank testing right up to 25kw briefly and will get it set up for some sustained 15kw testing over a longer period of time. Once again, thanks
