User’s Guide for EM760 series high-performance vector inverter Fig. 3-8 Wiring of Multi-function Output Terminals Note: The relay wire package must include anti-parallel diodes. The components of the absorption circuit should be installed close to both ends of the relay or contactor coil. Wiring of analog output terminals The analog output terminals (M1 and M2) can be connected with external analog meters to represent multiple physical quantities, which are optional for selection by using F03.34 or F03.35. 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. Connections of the RS485 and RS485/RS232 adapters to EM760 inverter are shown in Fig. 3-9, Fig. 3-10 and Fig. 3-11. Direct connection of the RS485 terminal of a single inverter to the host for communication: Inverter 变频器 A+ OFF A- S1 GND Fig. 3-9 Communication Terminal Wiring of Single Inverter Connection of the RS485 terminals of multiple inverters to host for communication: A+ GND A- A+ GND A- A- A+ GND A- A+ GND Inverter Inverter Inverter Inverter 变频器 OFF S1 变频器 OFF S1 变频器 OFF S1 变频器 S1 ON Fig.
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