The PSM-A Monitor System (PCU of Emerson)of the electric power supply system is used for data acquisition and display of parameters of the lower-level intelligent equipments such as rectifier, AC distribution cabinet, DC distribution cabinet, battery controller and insulation monitor. It also has functions like alarm processing and history data management according to settings of the system. In the meantime, it can realize the functions of battery management, outputting control command and alarm notification according to the processing result. Finally, the PCU can communicate with the host
The PSM-A Monitor System (PCU of Emerson), through RS-485 serial port, communicates with the monitoring units of rectifiers, AC distribution cabinet, DC distribution cabinet and insulation monitor respectively. It also communicates with host computer through RS-232 and RS-485/RS-422 serial ports. By issuing different data acquisition commands or various control commands to PCU, the host obtains various operating parameters of the system, and implements various control operations such as remotely configuring the analog and digital values of the system, and remotely acquiring the data of the system.
The PSM-A Monitor System (PCU of Emerson) gathers various data and working status of the power supply system. Through sorting and analysis the data and status, it can realize fully automatic management of the system and battery charging and discharging. Operators can manually start andshutdown the rectifier, start the boost or float charging, and regulate the current limiting and output voltage of rectifier through the keypad.
Monitoring software installed in the host will not only display all the detailed real-time data and status of the power supply system, but also issue various control commands to the power supply system, such as current limiting, boost/float charging voltage regulation, and start/shutdown of the rectifier.