VB5N series inverter
18
Connection of inverter RS485 port and superior device:
Fig. 2-8 RS485-(RS485/232)-RS232 cable connection
Many inverters can be connected together through RS485, the PLC(or PC) is the master device, as shown in Fig.2-9;
Also, you can select one inveter as master and the other inverters are slaves, as shown in Fig.2-10.The more inverters
are connected, the communication system will be interfered seriously, the following wiring is recommended.
Fig. 2-9 Connection of PLC and inverters
(Inverters and motors are all grounded well)
Fig. 2-10 Connection of several inverters
(Inverters and motors are all grounded well)
Shield
cable
Frequency inverter
Inverter
Superior device
RS232 (DB9)