User Manual of EM730 Series Inverter 3.4.2 Wiring of 485 communication terminals The communication terminals A+ and A- are the RS485 communication interfaces of the inverter. The online control of the host (PC or PLC controller) and inverter is performed through the connection and communication with the host. The connection of the RS485 and RS485/RS232 adapters to EM730 series inverter is shown in Fig. 3-16, Fig. 3-17 and Fig. 3-18. Direct connection of the RS485 terminal of a single inverter to the host for communication: Fig.3-16 Communication Terminal Wiring of Single Inverter Connection of the RS485 terminals of multiple inverters to host for communication: Fig.
3-17 Wiring of Communication Terminals of Multiple Inverters Connection to the host via RS485/RS232 adapter for communication: 48 M1 is for analog current output