6.参考点脉冲的产生 参考点脉冲又叫零脉冲。数控机床停电以后重新送电都要进行回参考点操作,用来建立机床的坐标系。零脉冲可使机床参考点定位准确。零脉冲的宽度应为一个计数脉冲的宽度,而且要求工作台每转一周只有一个零脉冲。当数控机床进行回参考点操作时,接收到这个零脉冲信号,机床就停止在该点,并把计数器清零,或是置数为参考点偏移值。以这点作为基准,对工作台的旋转角度进行测量和运算。零脉冲是怎样产生 6. Reference point pulse generation Reference point pulse is also called zero pulse. CNC machine power failure after re-transmission will have to carry out reference point operation, used to establish the coordinate system of the machine. Zero pulse can make the reference point of the machine locate accurately. The width of the zero pulse should be the width of one count pulse, and requires only one zero pulse per revolution of the table. When the CNC machine back to the reference point operation, the receipt of the zero pulse signal, the machine stops at this point, and the counter cleared, or set the number of reference point offset value. Using this as a benchmark, the rotation angle of the table is measured and calculated. Zero pulse is how to produce