User Manual EM303B General Purpose Inverter 3.3.3 Wiring the Analog Input Terminals Wiring terminals VS and VF through analog voltage signal: When analog voltage input signal is as the external power supply, terminals VS and VF shall be wired as per the method shown in Figure 3-13, and terminals IS and IF shall be wired as per the method shown in Figure 3-14. EM303B EM303B VS/VF 0 ~ 10VDC GND (a) (b) Figure 3-13 Wiring of Terminals VS and VF Grounding Shield Cable PE Wiring terminals IS and IF analog current signal: EM303B 0~20mA 0~20mA Grounding Shield Cable 3.3.4 Wiring Multi-function Input Terminal The multi-function input terminals of EM303B adopt full bridge rectifier circuit.
Terminal PLC is the common terminal of X1~X7. The current passed through the PLC terminal can be forward (NPN Mode) or reverse (PNP mode), so that it is flexible to connect terminals X1-X7 to external devices. The typical wirings are as shown in the followings: Figure 3-14 Wiring of Terminals IS and IF 33 10V VS/VF GND PE IS GND IF NPN and PNP wirings of multi-function numeric input terminals(X1～X7) (See F2 Group for parameter setting) A. Dry contact wiring mode PLC 24V K1 X1 K2 X2 K3 X3 K4 X4 K5 X5 K6 X6 K7 X7 COM B. NPN mode with external supply -+ PLC DC 24V 24V K1 X1 K2 X2 K3 X3 K4 X4 K5 X5 K6 X6 K7 X7 COM C.
PNP mode with external supply + - PLC DC 24V 24V K1 X1 K2 X2 K3 X3 K4 X4 K5 X5 K6 X6 K7 X7 COM