EM500 Open-Loop Vector Control Inverter User Manual When analog voltage input signal is powered by external power supply, terminals AI1, AI2 and AI3 are wired as Figure 3-14-a. When analog voltage input signal is generated by potentiometer, terminals AI1, AI2 and AI3 are wired as Figure 3-14-b. Inverter 10V Inverter 0 ~ 10VDC AI1/AI2/AI3 AI1/AI2/AI3 GND Near-End Grounding of Shield Cable PE GND PE (a) (b) Figure 3-14 Wiring of Terminals AI1, AI2 and AI3 3.3.3.2 Wiring Terminals AI2 and AI3 (Input Analog Current Signal): When selecting analog current signal input on terminals AI2 and AI3, configure current mode through switches S4 and S5 of the terminal block. See Figure 3–15 for detail.
V AI2 I V I AI3 Figure 3-15 Configuring Current Modes with S4 and S5 S4 S5 3.3.4 Wiring of Terminals AI2 and AI3 (as shown in Figure 3-15) GND 0 ~ 20mA AI2 Inverter 0 ~ 20mA Near-End Grounding AI3 PE Figure 3-16 Wiring of Terminals AI2 and AI3 of Shield Cable 3.3.5Wiring of Multi-function Input Terminal Multi-function input terminals of EM500 inverter adopt full bridge rectifier. PLC terminal is a common terminal for X1-X7. The current passing through PLC terminal can be either forward (NPN Mode) or reverse (PNP Mode), so that it is flexible to connect terminals X1 - X7 to external devices. Typical wiring methods are shown in the 51