1、Realize up to 16-speed operation through built-in PLC or control terminal, very practical 2、In the case of instantaneous power failure, the load feedback energy is used to compensate for the voltage drop to keep the inverter running for a short time 3、Linear or S-curve acceleration and deceleration mode. There are four kinds of acceleration and deceleration time, range is 0.0-3600.0s 4、When the V/F operating load changes, the output current is automatically limited to prevent over‑current tripping and realize the "shovel" characteristics 5、Provide power-on motor short circuit detection, input and output phase loss protection, overcurrent protection, overvoltage protection, undervoltage protection, overheat protection, overload protection, etc. 6、The parameters can be copied quickly through the LED operation panel, part or all of the keys can be locked, and the scope of part of the keys can be defined to prevent misoperation 7、9 kinds of frequency sources, contain digital setting, analog voltage setting, analog current setting, pulse setting, communication setting, which can be switched in a variety of ways