It so happened that my computer is connected to the EnerGenie EG-UPS-035 2000VA (1200 watts) UPS. AC180p is used as a backup power supply for the apartment. When the apartment is powered by AC180p, there are no problems, but if I start to turn on my computer or the EnerGenie UPS, the voltage spikes are fixed. I see these jumps because I have a voltage relay. Jumps can be both to a larger side and to a smaller one (80 or 270 volts at a nominal 230 volts).
After starting the computer, everything works perfectly. But I’m worried about this question because I can’t find an answer as to why this is happening.
AC180p does not detect any errors. If you go to the settings, E000 is displayed there.