TVF7000 series variable frequency drive is a high-quality, low-noise, multi-function general variable frequency speed controller suitable for a variety of working conditions. The variable frequency drive has the following features: adopts optimized space vector PWM control, the output current harmonic components are small, the operation is stable, and the efficiency is high. It adopts the latest generation IGBT power module, the maximum carrier frequency is 16kHz, and it runs silently. The instantaneous output voltage is automatically adjusted, even if the input power grid has a large fluctuation, the output voltage basically remains unchanged. Digital keyboard, analog potentiometer, voltage source, current source, program running, frequency sweeping, computer interface and other input methods, flexible and convenient control methods. Current limiting, overvoltage stall, regenerative braking, speed tracking smooth restart and other functions, suitable for various applications. The built-in PID controller makes the closed-loop control system simple. The built-in RS-485 standard communication interface provides standard communication protocol and computer network control operation software. Liquid crystal character, graphic display, Chinese and English display modes can be set at any time, and the human-machine interface is friendly. Dual keyboard interactive switching control, the machine and remote control are freely selected. The protection function is perfect, and the system can immediately protect the variable frequency drive when it occurs short circuit, overcurrent, overload, and overvoltage faults. The entire series is molded, with beautiful appearance and compact structure.