Just installed 2 of the 250/100 Smart Solar MPPTs. I would like to use the streetlight function to turn some lights on/off automatically. I have the relay working as expected in the settings, but really have no idea how to wire it. Not much info in the manual.
MPPT is charging 48V batteries
48V-24V dc-dc converter
Relay is Gigavac P115BDA, 12V coil, (takes 170mA to power coil)
Lights use 5A @24V.
I have a small 12V house bank for DC lights I can pull power from to power the coil.
My questions: Do I run 12V- to the relay coil from the battery? Then run 12V+ from battery to MPPT “Common” terminal? Then from “N.O.” terminal of MPPT back to 12V+ side of relay coil?
Any help is very appreciated!