西门子6ES7902-3AB00-0AA0 压力飞轮

西门子6ES7902-3AB00-0AA0 压力飞轮

控制技术方案

  细纱机电气控制系统需要具备纺纱过程所需的自动开车、纲领板自动下降、中途停车后自动跟踪开车、自动落纱、自动留头等功能外；还能显示管纱长度等的工艺参数，实现定长落纱和锭子速度曲线控制以及班产累计等功能。电气控制系统包括：传动部分、数据检测部分、变频器锭子速度曲线控制、可编程控制器部分、TD2X单元及数字通讯部分。

  1.系统硬件  传动部分

 包括主电机、吸风电机、纲领板升降电机、自动润滑装置、变频器、落纱电源、开关等。

 2).数据检测部分

 功能为自动检测纺织过程中主轴、前后罗拉的运行数据，为计算班产、锭速、牵伸倍数、捻度等工艺阐述以及为锭子速度曲线控制提供数据。

3).自动检测部分

其作用为当落纱开始后能自动适位停车，自动留头，为重新开车降低断头创造条件。4).变频器锭子速度控制

其作用是变频器依据PLC传输的锭子速度控制曲线自动调整锭子运行，提纱线质量和产量。

可编程控制器部分

该部分由CPU226L主机和扩展开关信号模块构成；完成全机开关量输入、数据检测以及计算和过程控制，实现纺纱过程自动化和对机器运行情况进行监控。

该部分由CPU226L主机和CO-TRUST系列TD2X之间以PPI协议通讯，完成纺纱过程工艺参数显示设定，可直接设定锭子的运行速率，实现控制柔性化。

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