A90 series Inverter User Guide 3.3.2 Function and Wiring of Control Terminals Table 3-2 Control Terminal Functions 17 Mode Terminals Function Detailed description +10V Power Offers a +10V power supply, maximum 10V-GND Supply output current: 10mA. 24V-COM Auxiliary Offers +24V power supply, generally used as (A90-4T017B Power Supply a working power supply for digital input or and the +24V Power output terminal, or external device power smaller Supply supply. models are Maximum output current: 100mA. 24V-GND) AI1-GND Analog Input Terminal 1 Input voltage range: DC 0 - 10 V Input impedance: 1MΩ AI2-GND Analog Input Terminal 2 Input range:
DC 0-10 V or 0-20 mA; select the voltage/ current mode by switch S2 on the Control board. Input impedance: Voltage mode 1 MΩ, current mode 250 Ω Analog Input X1-COM(*) Digital Input1 Optocoupler isolated input terminals, Common for COM Functions selected by F02.00-F02.05 Input impedance：5.1 kΩ (* A90-4T017B and the smaller models without optocoupler isolation, the common is GND) X2-COM(*) Digital Input2 X3-COM(*) Digital Input3 Digital Input X4-COM(*) Digital Input4 X5-COM(*) Digital Input5 X6-COM(*) Digital Input6 M1-GND Analog Output Terminal Output range: DC 0 - 10 V. Functions selected by F03.21 Analog Output Y1-COM(*) OC Output Terminal Optocoupler isolated, Open-Collector output.
Maximum output voltage: DC 24V Output current: 50 mA Functions selected by F03.00 (A90-4T017B and the samller models is Y1-GND) Digital Output R1： EA-EB-EC Relay Output Terminal EA-EC:Normally Open EB-EC:Normally Close Functions selected by F03.01 Relay Output A+ RS-485 Communication Interface RS485 communication (+) Communication A- RS485 communication (-)