The machine is controlled by PLC program. Frequency steplessspeedcontrol. Electrical parts are imported.
整机由程序控制，变频器无级调速，电器控制部分采用进口元器件。
2
The analysis on the simulation results in steplessspeed regulating system of automotive air-conditioning fan shows that the fuzzy PI control is better than the conventional PI control.
The winch adopted valve-controlled proportional speed regulation hydraulic drive and PLC control to realize steplessspeed change of the winch drum and coordinating control of the cable layer.