I have a Victron Quattro 48V, 8000Va 110 Amp UPS in my office server room. The equipment runs through the UPS, but there is no backup when the power supply fails. Further to that, I have a GX Color control screen with the UPS - if i plug this in whilst the UPS is on, everything is fine. But if the UPS is off, it will not turn on whilst the color control is plugged in. Once i unplug the color control, the UPS turns on and power supplied to the server equipment.
