Don’t use an external resistor. Before you buy, tell the seller that you want to use an external resistor. If your motor is heavy-duty, choose a higher horsepower VFD or contact sales for help with model selection. You need to change the Hertz parameter of the VFD if your motor runs at 50 or 60 Hz.
Input：1 or 3 phase 220v . A 3phase 220v output. Frequency：0-50hz/60hz. 0-400hz. There are three inputs on the VFD: R, S, and T. You can just connect L1/L2 to any two of them.
Diverse terminal functions, can be controlled by external potentiometers.
Application MOTOR :CNC router, CNC machine, milling machine, drilling machine, wingding machine, mixer, extruder, slitter, winder, compressor, ventilator, pump, grinder, conveyor, elevator, centrifuger and other speed control machine.
1 year of free replacement.
If there is an alarm in the product and you do not know how to operate, please contact the selle. This was wired by a professional. It didn’t power any devices, it was just turned on. It didn’t work for 30 minutes as I changed settings. Loud pop, and threw the breaker. A piece of the circuit boards looks like it’s been blown up. It was put in after the return window closed, so I’m out of luck. Poor quality control Chinese made junk.
