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我公司一台ＸＫ２１２０Ａ数控龙门铣床，数控系统采用西门子公司的８８０Ｍ，该机床在运行中出现以下故障。Ｚ轴不在参考点时，Ｔ型块平行显示按钮内的灯亮，显示正常；Ｚ轴一回到参考点，其Ｔ型块平行显示按钮内的灯立刻一闪一灭，且无报警信息，致使抓附件操作无法进行...
My company a XK2120A CNC gantry milling machine, CNC system using Siemens 880M, the machine in the operation of the following failures. When the Z axis is not at the reference point, the light in the T-type parallel display button is on and the display is normal; when the Z-axis returns to the reference point, the light in the T-type parallel display button immediately blinks and flickers without alarm information, Caught attachment operation can not be done ...