So I have newly migrated to Victron. 10kw 120 vac 60 cycle inverter and three 250/70 Mppt, Cerbo, shunt etc. So tonight the Quattro inverter shuts down low voltage. Keeps throwing the fault. Voltage per shunt, per Cerbo and via test leads at the inverter are 55.4 vdc. The inverter will not accept generator. Settings checked with VE config for what little that does. Also via laptop with MK3 and firmware updated. WTF?
Re generator : turn off “weak ac” and ups.
Turn charger down to 10a, ac-input according generator.
For a 10kw multi you’ll need at least a 5kw generator.
Low voltage ?
Wiring losses, bad connections, fuses, circuit breakers.
So kind of you to reply. Those are turned off. The generator was not started until the inverter shut down so that’s not the issue. it’s only 3 kW It is however a Honda 3000 IS inverter. So not a weak source, frequency voltage etc are good even via the cerbo. Inverter just randomly decided 55.4 volts was low voltage and stubbornly refuses to accept any other ideas. Not sure about this equipment anymore. The shunt, the cerbo and even the Quattro as shown on the color screen and via the mk3 is showing 55.4 volts. Verified this with multi tester at the inverter input.. Sorry in a 48 volt system that’s not low volts.
Rated output is 23.3a. 2800w.
Quattro ac input limit should be set below that.
DC charge current should be 35-40a. to keep below ac input limit.
What settings has the quattro been programmed with.
Screenshots pls.
Thank you for that, and yes input is set at 30. But my apologies to the community and to Victron. When the sun came up I discovered a problem with the 4/0 Anderdson disconnect between the battery bank and the inverter. Somehow the positive cable was unsnapped, so not making contact. I was confused by having 55.4 volts at every reference point but of course as the voltage was read at the smart shunt before the Anderson that would be so. I still do not understand how I could show full voltage on the multi meter at the inverter input. I did not however check amps there, could be just enough contact at the Anderson to show VDC but not any amps? Anyway thanks and a replacement connector is on order already.
This topic was automatically closed 14 days after the last reply. New replies are no longer allowed.