User Manual EM303B General Purpose Inverter Figure 3-17-b Multi-function Terminal with External Power Supply Remarks: If the multi-function output terminal is powered by external supply, then the multi-function input terminal should be applied with the same supply, to avoid short circuit when input terminal is set as PNP mode. 3.3.7 Wiring Analog Output Terminals Analog output terminals M0 and M1 can represent various physical quantities when connected to external analog meter. The specifications of jumper are taken as: 0~20mA output current or 0~10V output voltage. Here M0 and M1 correspond to JP1 and JP2 respectively. See Figure 3-18 for details.
Figure 3-18 Wiring Analog Output Terminal 3.3.8 Wiring Communication Terminal Terminals A+ and A- are the RS485 communication terminals of the inverter. The control network between PC or PLC and inverter can be achieved through connecting communication with PC or PLC. See Figure 3-19 and Figure 3-20 for connection of RS485, RS485/RS232 converter and EM303B. Connect to PC or PLC through RS485 terminal Figure 3-19 Wiring Communication Terminals 36 EM303B +24V 24V PLC +3.3V Y1.Y2 COM Relay + DC- EM303B Analog Meter M0 M1 GND J1 M0: Analog voltage output M0: Analog current output J2 M1: Analog voltage output M1:
Analog current output A+ EM303B A- GND PE 485+ PC/PLC 485- RS485 Communication GND Terminals