... ultra silently; build in PID, can realize close-loop control conveniently; 36 kinds of perfect protection and alarm functions ... kinds of requirement.Technical Features1. Special magnetic flux vector control 2. Low frequent high start torque: 0.5Hz/ ... multi-function input/output terminalsApplicationConveyor, Steel, Cement, CNC machine, Fan & pump, Chemical fiber, Sugar, Glass, Packaging, Metal, Plastic ...