User Guide of EM730 Series Inverter 3.3.3 Wiring of analog input terminal Wiring of AI1 and AI2 terminals with analog voltage signal: When the AI2 terminal is in the mode of analog voltage signal input, the switch J8 on the control panel is set to the voltage mode, as shown in Fig. 3-12 When the analog voltage input signal is powered by an external power supply, the wiring of terminals AI1 and AI2 is shown in Fig. 3-12-a. When the analog voltage input signal is sent by a potentiometer, the terminals AI1 and AI2 are connected as shown in Fig. 3-12-b. In addition, F02.62 (AI1 input type) and F02.63 (AI2 input type) should be set according to actual needs (0: 0-10V; 1: 4-20mA; 2: 0-20mA; 4:
0-5V). EM730 -10VDC~10VDC/0~10VDC AI1/AI2 Near-end grounding GND of shielded cable PE (a) 24 terminal common side COM of the digital input terminal are independent of each other. A+ RS485 communication terminal positive terminal of RS485 differential signal Communication A- negative terminal of RS485 differential signal EA Relay output terminal EA-EC: Normally open EB-EC: Normally closed Relay output EB EC RJ45 External keyboard terminal For the external operation panel The upper computer can also be connected through this port for background software debugging. External keyboard port