I'm not sure if this should go into AIO forum of off-grid forum, but I'm leaning towards AIO as this inverter has grid support, grid charging etc. I'm talking about ESUN smh-ii-7k and MPS-VIII ECO 4.2KW (very similar devices) and other similar ones
I never saw anything about it in the respective units manuals, but it was mentioned in few places on the forum you shouldn't connect the PV input while the inverter is powered on. You should switch it off, connect the PV input, then power the unit back on.
This is contrary to how I'm hoping to use my unit. So I'm starting this thread to learn what is this advice based on? Just overabundance of caution? Or some technical reason that will cause the device to blow up the first time the rule is broken?
I have an grid-tied inverter with a PV string. I would like to set up an automated way to disconnect this PV string from the grid-tie inverter and connect it to a the AIO inverter in an extended grid-down situation. As at the time the AIO inverter will be powering my entire house from the battery I definitely do not want to be swithing it off to connect PV. What do you think? Can it be done?
Also, this is a high voltage unit, up to 450V VOC, and my string can be up to 400V in cold temperature.
I never saw anything about it in the respective units manuals, but it was mentioned in few places on the forum you shouldn't connect the PV input while the inverter is powered on. You should switch it off, connect the PV input, then power the unit back on.
This is contrary to how I'm hoping to use my unit. So I'm starting this thread to learn what is this advice based on? Just overabundance of caution? Or some technical reason that will cause the device to blow up the first time the rule is broken?
I have an grid-tied inverter with a PV string. I would like to set up an automated way to disconnect this PV string from the grid-tie inverter and connect it to a the AIO inverter in an extended grid-down situation. As at the time the AIO inverter will be powering my entire house from the battery I definitely do not want to be swithing it off to connect PV. What do you think? Can it be done?
Also, this is a high voltage unit, up to 450V VOC, and my string can be up to 400V in cold temperature.