Hook up the other conclude from the grounding conductor to your picked grounding point. If utilizing a grounding rod, travel the rod to the earth close to the inverter system and fix the conductor securely to your rod using a grounding clamp. Owning no on/off activate the DC-favourable inverter wiring. https://deanwlyjs.total-blog.com/a-review-of-inverter-systems-installation-55585328