I have a SplitPhase Setup with an 48/5K 230v Multi + Autotransformer. The setup Manuals tells you to Disable the Multi+ Internal Ground relay by removing the check mark in VE Configure.
and that will enable the External Ground relay control at the Multi+ to use the Ground relay at the AT.
Multi+ gnd relay connection
I realized this AT external ground relay does not close at all. So I tested the relay applying 5volts and the relay close (Relay has a label attached that said 28VDC). Then I tried to read anything coming from the Multi+ Gnd relay green contact and nothing is coming out (no voltage, no Contact close)
I tested having the Multi in Inverter mode and connected to the Grid and the same results.
Multi+ Firmware: 473
Additionally, I tested changing the dip switches has the Manual advise and still no control over the AT gnd relay.
Thanks for your help