I connected a small 230V inverter on the load port of my smart solar mppt. This setup works reliable and well. I think I saw around 150W on the load side in the app. The load port is set to always on. Now there is a device that creates unexpected trouble.
Whenever I turn on my soldering iron that is connected to the inverter the MPPT turns the load port off. The soldering iron has a rated power of 80 Watts. This shouldn’t be a problem since I can power devices with higher power ratings without issue.
The soldering iron works when powered from mains.
As I could not find anything on the victron site, is there some limit that forces the load port to switch off?
The load limit is indeed 15A. A soldering iron will have a larger current draw than rated when it is cold and as the element heats up, the resistance will increase and the current draw reduce (like a light bulb but less marked). Then you have the issue of the inverter efficiency, could add 10-20% onto the power drawn plus voltage drop from the battery added into the mix. This could exceed the power limit or if the battery is not charged or is aged then the voltage could drop and cause the load to disconnect.