I asked this question in the Mppt section but it never showed up???
My BMS can turn my batteries off under certain [out of spec] conditions. My concern [although recently lowered] is when/if batteries are turned off power to my MPPT controller[s] will also be cut [batteries are literally turned off] but the PV power will continue to be supplied to the [BlueSolar 150/60] controller. while this "condition" will signal an alarm from the BMS If I am away the "condition" could exist for several days. I know some [cheaper] CC's aren't capable of this situation without damage. I have manual cut-offs on the PV [both legs] would contactor[s] be REQUIRED to isolate PV if/when battery power is off and if so can just one PV leg be opened [1 contactor vs two]. I understand the safety concerns about disconnecting PV first and the need for battery first for initial set-up. I have heard both absolutely yes and absolutely no on other forums so I'm hoping I can get a definitive answer here. Thanks
