Forward and reverse rotation of motor is controlled by changeover switch and VFD IST230A Series Mini Variable frequency drive is divided into single-phase and three-phase general inverters, which has strong load adaptability, stable and reliable operation, automatic energy-saving operation and other functions. It can be widely applied in medical care, food, water treatment, papermaking, textile, machine tool, conveyor belt, carpentry, traffic and transportation, communication, machinery and equi