Terminals MX2-V2 Item Terminal symbol Terminal name Description Specifications Analog Power supply SC Input signal common Common terminal for the internal power supply, digital input, and analog I/O terminals. FS Frequency reference power supply This is 10 VDC power supply for the terminal FV. Allowable current: 10 mA max. Frequency setting input FV Frequency reference input (Ana- log voltage input) This is 0 to 10 VDC analog volt- age input. By default, this is adjusted so that the frequency reaches the maximum at 9.8 V. (Adjustable in A012/A014) Input impedance: Approx. 10 kΩ Allowable input voltage range:
-0.3 to -12 VDC FI Frequency reference input (Ana- log current input) This is 4 to 20 mA analog DC input. By default, this is adjusted so that the frequency reaches the maximum at 19.8 mA. (Adjust- able in A102/A104) Input impedance: Approx. 100 Ω Allowable input range: 0 to 24 mA Sensor input S5 (TH) External thermistor input (Multi- function input terminal used in common) Set the Multi-function Input S5 Selection (C005) to 19 (TH: PTC thermistor thermal protection) to enable this terminal. Connect an external thermistor between this terminal and SC, and the inverter will trip if a temperature error occurs.
(The inverter trips when the resistance of the thermistor is approximately 3 kW or higher.) PTC type Output AM Multi-func- tion analog output (Voltage) This terminal can output the specified signal as a 0 to 10- VDC voltage signal. Allowable current: 2 mA max.