I would like to understand if it is possible to implement an initial gcode that would choke the current absorption by the bad. During the heating of the bed we are at 1000watt absorption and my UPS is struggling. I don’t care if it would take longer to heat up, I just care about reducing the absorption
The bed is fed directly from the AC mains and is not controllable other than on/off, as far as I can tell. You could do the opposite of what some in the US do and use a step-down transformer to 120V, this drops the power consumption of the bed by a lot. You’d need one capable of handling 500W.
I think you use the wrong type of UPS, you must use an offline, not an online.
The major point that differentiates between the online UPS and offline UPS is that the online UPS supplies power from the AC mains to the Load through the rectifier and inverter combination while the Offline UPS directly supplies power from AC mains to the load.
I use an APC ES 550 for the Bambu, PC, monitor without any issues.