I have a Multiplus 2 48/500VA with ESS and a Cerbo GX connected to a battery. The ESS is in "Keep battery charged" mode. The Multiplus is always in bulk mode! What is the parameter that cause the change from bulk to absorption? I alredy try to change "absorption voltage" and " State of charge when bulk finished" but it's always bulk. It's supposed to stay this way?. Am i missing something? Thank you