When AC coupling using 2 or more OB radian inverters, it is only the master inverter(at least that's where ac-coupling status shows as "yes") which can be set to, and perform "ac-coupling", correct? The Mate3s option to enable AC-coupling does not specify individual ports(inverters) to select and enable. The other inverter(s) will pass their share of the GTI PV through to the grid regardless.
I ask because I was talking to OB tech support today on another issue for a 2 Radian AC-coupled system. They told me that all Radians needed to be set to AC-coupling, but there is no option to do it in the Mate3s. When I mentioned that, he said the Mate had to be unplugged from the hub and into the slave inverter directly to do it. But I don't think that's correct. And besides, if the ac-coupling setting only enables a frequency shift, that's all we need to knock the GTI offline. -- *Kirk Herander / **kirkh@vermont.solar <kirkh@vermont.solar>* *Owner|Principal, VT Solar, LLC* *Celebrating our 31st Anniversary 1991-2022!!* *www.vermont.solar* <https://nam02.safelinks.protection.outlook.com/?url=www.vermontsolarnow.com&data=02%7C01%7C%7C9f0330d75a244870112408d685311841%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C636842843233477645&sdata=0NjyuKeQbEK6245SNnk8X4XnP9Q%2B%2BqtvcALkdDghvk4%3D&reserved=0> dba Vermont Solar Engineering 802.863.1202
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