My castle, a boat; The ocean, my moat
- Jan 12, 2021
- Vancouver Island
Thanks, I don't have the Schneider inverter either. I am just in the middle of the longest, slowest LFP build project on the planet, I'm sure lol. (I have major issues getting parts/supplies).I also have an Orion but not a Schneider inverter. I would be happy to answer questions about the Orion.
Anyway, I am in the configuration phase now and everything is functioning fine on the top end of the charge cycle but I have been unable to get my contactor to trip on the bottom end of the discharge cycle. I've got the setting at 3.1V/cell for testing but have run it right down to 2.75V/cell and that's where my inverter shuts off but that has nothing to do with the BMS or the contactor.
My set up is as follows.
400ah @ 12V LFP feeding the AC system via a 3KW Go Power inverter and being charged by 680W of solar and a Stirling BB1260.
400ah @ 12V FLA feeding all DC loads and being charged by 180W of solar, a 150A alternator and a 60A Xantrex Truecharge charger.
I've tested the BlueSea MLB 7700 contactor by applying 12V to the relay and the contactor opens as it should but I've measured the voltage when expecting the contactor to kick and the voltage from the Orion to the relay only reaches ~600mv and nothing happens.
This, and I am also confused by the SoC drift point concept