Are the axis motors supposed to output power when moving?
I just changed the firmware on my maker select v2 from marlin to repetier. I noticed that when you move the extruder on the x axis fast, it powers the fan and the lcd screen for a moment. I don't remember this happening before. It also happens with all the axis. I don't have it plugged into the wall either. This might be a stupid question but I haven't found anything online.