EM500 Open-Loop Vector Control Inverter User Manual 49 Terminal 1 Input impedance: 1MΩ AI2-GND Analog Input Terminal 2 Input range: DC 0 - 10 V/0 - 20 mA; select the voltage/current mode by switch S4 on the terminal block Input impedance: Voltage mode 1 MΩ, current mode 250 Ω AI3-GND Analog Input Terminal 3 Input range: DC 0 – 10 V/0 – 20 mA; select voltage/current mode by switch S5 on the terminal block. Input impedance: Voltage mode 1 MΩ, current mode 250 Ω X1-COM Multi-function Input Terminal 1 Optocoupler isolation, compatible with bipolar input of NPN and PNP. Input impedance: 4.5 kΩ Input voltage range:
9 – 30 V X2-COM Multi-function Input Terminal 2 X3-COM Multi-function Input Terminal 3 X4-COM Multi-function Input Terminal 4 Numeric Input X5-COM Multi-function Input Terminal 5 X6-COM Multi-function Input Terminal 6 X7-COM High Speed Pulse Input Terminal In addition to being used as multi-function input terminal, it can be used as high speed pulse input terminal as well with maximum response frequency of 100 kHz. Input voltage: 12 – 48 V Input impedance: 1 kΩ