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设计了适用于BQ2 0 10轻型龙门刨床工作台的交流变频拖动及其PLC控制系统 .用交流变频电机实现工作台往复运动的换向和软启动 ,利用能量回馈装置克服工作台换向制动时的大惯量引起的泵升电压 ,PLC完成各种逻辑控制 ,实现了工作台的平稳换向和无级调速 .
The AC frequency conversion drag and its PLC control system which is suitable for the light gantry planer of BQ2 0 10 are designed and the commutation and soft start of the reciprocating motion of the worktable are realized by using the AC variable frequency motor.The energy feedback device is used to overcome the reversing brake of the worktable When the pump caused by large inertia voltage, PLC to complete a variety of logic control, to achieve a smooth commutation stage and stepless speed regulation.