BENTLY NEVADA PWA-140734 

BENTLY NEVADA PWA-140734 

BENTLY NEVADA PWA-140734 

联系人:刘经理

电话:0592-5580706   15359273796

1、操控要求
(1)初始状况
电动机M1和M2为OFF，电磁阀3YA和4YA为OFF,夹具处于松开状况，lYA和2YA为OFF，飞锯处于抬起状况，液压阀SYA为OFF,小车处于原始方位。
(2)发动操作
按下发动按钮，开端下列操作:
①电动机M2工作后M1工作，即飞锯旋转后再送入钢管。
②当钢管长度到达预订要求时(例如6m)，电磁阀4YA为ON，夹具夹紧钢管，带动小车和飞锯一起向前工作。
③当小车工作到SQ1方位时，SQ1为ON，电磁阀lYA为OFF，下锯切开钢管，完结钢管切开时，SQS为ONo
④当小车到达SQ2方位时，SQ2为ON，一起lYA为OFF,  2YA为ON飞锯抬起，随后2YA为OFF o
⑤当到达SQ3的方位时， SQ3为ON，一起电磁阀4YA为OFF,  3YA为ON夹具松开。一起液压阀SYA为ON使小车回来到本来方位，随后3YA,  SYA又康复为OFF。
⑥假如小车没有回来继续向前工作，当到达SQ4方位时，SQ4为ON，表明体系出现毛病发报出报警信号，一起整个体系中止在当时状况下。
⑦假如不是按着上述操控要求工作，都要发出报警信号中止工作。例如3YA,4YA一起为ON,  4YA,  SYA一起为ON,  S04为ON等。
(3)中止操作
按下中止键后，一切的输出均匀为OFF，中止操作。
3、依据上述操控要求，编制体系操控程序，调试并工作程序
四、编程练习
依据下面的两种操控要求分别编制自控飞锯体系的操控程序，并上机调试工作。
①操控要求同1、但增加每月切开钢管数的统计功用。
②选用2位拨码器输入，作为由外部设定钢管长度和数量进行切开。
③依据钢管传送的速度修正电磁阀4YA为ON的动作时刻，确保切开钢管长度的精度，编制程序。
提示:在刚管切开的过程中，切开钢管的长度会发生误差，其原因是因为电磁阀的动作速度是必定的，而电动机M1的工作速度是可变的，即钢管的传送速度是不定的，当M1工作的快就有必要确保电磁阀4YA为ON有一个提前量，而M1工作的慢，4YA为ON就应有一个推迟量，这样才干确保切开钢管长度的精度，减少误差。在编程时有必要考试这一要素。
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