A90 series Inverter User Guide 3.3.5 Digital output terminal wiring The Digital output terminal Y1 can be powered by 24V inside the inverter or an external 24V power supply, as shown in Figure 3-8: +24V 24V +24V 24V Inverter Inverter Y1 relay Y1 relay + - DC COM COM a: Use internal power supply b: Use an external power supply Figure 3-6 Digital output terminal wiring Note: The relay coil must be added to the anti-parallel diode . The elements of the absorption circuit are to be mounted on both ends of the coil of the relay or contactor. 3.3.6 Analog Output Terminal Wiring Analog output terminal M1 can represent a variety of physical quantities.M1 Output voltage (0 ~10V).
3.3.7 Wiring of 485 Communication Terminal Communication terminals A+ and A- are RS485 communication interfaces. Connect A+ to the controller’s communication positive terminal, A- to the controller’s communication negative. To achieve the host computer (PC or PLC controller) and the inverter network control. RS485 and A90 series inverter connection shown in Figure 3 9. Turn the last inverter’s S1 ON. RS485 communication Controller interface + - GND A+ GND A- A+ GND A- A- A+ GND A- A+ GND S1 OFF S1 OFF S1 OFF ON Inverter Inverter Inverter Inverter S1 Figure 3-9 multi-inverter/single inverter communication terminal wiring 19