JAPMAC

could someone please confirm how to connect power to for snp-l6233. We have used the correct rated power supply and connected to connections labelled as ACS and FG on the PCB via power input block but the unit appears to not be powering there is a second AC connection on the power input block marked on the pcb as ACR. Does anybody have any idea if we are doing something wrong or have an explanation of ACR ACS and FG Help would be greatly appreciated. thanks