I have a 10KW Sungoldpower hybrid inverter (SPH10K48SP) along with 2 X 48V 100AH Server Rack Lifepro battery SG48100P solar system. Inverter AC input is fed from the main panel. Inverter AC output is feeding a subpanel. The ground and neutral are bonded at the main panel but not at the subpanel. I have the inverter setting 01 at SBU, which indicate AC out source priority to Solar then battery then utility. Setting 06 is at SNU for battery charging mode. Setting 63 is set to DIS to prevent neutral and ground bonding at the inverter.
My EV charger will not work and give a red light, which indicates an improper grounding, when fed from the subpanel through a nema 14-50 outlet. It works normally if connected to a regular outlet power from the main panel. All other loads fed from subpanel are working normally. The ground wire for feeding AC input from the main panel is connected to inverter AC ground input while the ground wire for feeding AC output to the subpanel is connected to the inverter AC output. I really want to use the subpanel in charging my EV to take advantage of solar power. Not sure if I'm missing anything that is causing the ev charger to see a grounding problem. Thanks for any help.
My EV charger will not work and give a red light, which indicates an improper grounding, when fed from the subpanel through a nema 14-50 outlet. It works normally if connected to a regular outlet power from the main panel. All other loads fed from subpanel are working normally. The ground wire for feeding AC input from the main panel is connected to inverter AC ground input while the ground wire for feeding AC output to the subpanel is connected to the inverter AC output. I really want to use the subpanel in charging my EV to take advantage of solar power. Not sure if I'm missing anything that is causing the ev charger to see a grounding problem. Thanks for any help.