Hello friends of the blue devices,
is there a false advertising promise from Victron?.
I bought 3 Quattro II, a Cerbo GX and 6x MPPT 150/70 VE.Can. Then I installed 14kWp PV and a 11kWh battery with diyBMS. Everything has been going great for about 2 months - except for the advertising promise with the generator.
Of course I installed the ESS Assistant in all 3 Quattros - there's no other way if you want to use the PV power yourself and want to store excess power in the battery. My 8kVa generator with Honda motor and AVR on each phase is connected to AC In1 as the owner's manual recommends.
Germany with internal NS protection is set as the grid code. LOM activated at AC IN 1+2. The generator is not recognized. LOM disabled at AC IN1 - nothing! Then I found that the generator is set to 52Hz, so I set it to around 50Hz - the generator is recognized after a very long time and serves phase 1+2+3. But no charging of the battery - which is the most important thing for me. After this connection was not stable either, I switched to EXTERNAL NA protection. This keeps the generator stable in the system. However, there is no PowerAssist and no support from the Quattro II inverter.
IF I suddenly switched on 4000W the Quattro II throw the generator out of the system again. I only want to charge the battery with the generator and the other consumers as before with an inverter using MPPT and battery power. So as if the grid is available on AC IN2 and no generator is connected. It works there too. I've tried everything with the generator - minimum SOC set to 100% or always keep the battery charged - all the setting options...nothing. You can only use the generator to operate connected consumers in the house without any support from the QUATTRO II. That sounds somehow different in the advertising. It doesn't say "all this will only work with your generator if you don't install an ESS". Then I should have saved a lot of money and would have bought 3 Multiplus II and 3 additional power supplies with a total of 7kW to charge the battery with the 3-phase generator.
Is there someone among you who knows more about this and can help me?