What is the motor in the conveyor belt (pipelined) The kind of motor also has a speed control box, but not the inverter.
Asynchronous motor. Synchronous motors are used in this place
Speed motor, which is a kind of voltage regulator, and frequency control is not the same.
You use this governor to use a governor control, commonly used in low-power motor, 400W below the use of common 200W following motor, speed control panel + motor cost is low, more than 400W using the inverter control, the motor is asynchronous motor, There are two phases and three phases.