2. Monitoring configuration The monitoring unit of the DC system is responsible for the control of the high-frequency rectifier module, battery charging management, AC input detection, DC bus voltage detection alarm. Insulation monitoring and insulation status detection of each output branch of the DC panel, battery pack inspection and discharge detection functions, and AC and DC power distribution re- Status switch detection and alarm function of important components, output feeders, etc., detection of communication modules, inverter modules, etc. The organizational structure is shown below:
AC detection unit Computer backend or DC detection unit power automation system charging module RS232/ 485 charging module PSM series monitoring Battery inspection unit Insulation detection unit Switch detection unit Operation display Communication module Inverter module optional unit RS485 bus —-5--