User’s Guide for EM760 series high-performance vector inverter 24V PLC 24V PLC COM COM K1 K2 X1 K1 K2 X1 K3 X2 X3 K3 X2 X3 K4 K5 X4 X5 K4 K5 X4 K6 K7 X6 K6 X6 X5 X7 K7 X7 C. Use of external power supply in NPN mode D. Use of external power supply in PNP mode 24V 24V DC 24V - + PLC DC 24V + - COM PLC K1 COM K1 X1 K2 K3 X2 X1 K2 K3 X2 K4 X3 X4 K4 X3 X4 K5 K6 X5 K5 K6 X5 K7 X6 X7 K7 X6 X7 Fig. 3-7 Wiring Diagram of Multi-function Input Terminals Note: When an external power source is used, do remove the short connection line between the 24V power source and the PLC terminal.
Wiring of multi-function output terminals The multi-function output terminals Y1 and Y2 can be powered on by the internal 24V power supply of the inverter or an external power supply, as shown in Fig. 3-8: +24V 24V +24V 24V Inverter Inverter 变频器 变频器 Y1（Y2） 继电器 + - DC Relay 继电器 Y1（Y2） Relay YCM（COM） YCM（COM） a: Use of internal power supply b: Use of external power supply 27