ＡＢ８４００系统丢程序的原因及处理美国ＡＢ公司生产的ＡＢ８４００数控系统进入我国已有多年。该系统在使用中常出现工件程序丢失现象。如果机床不带外存设备，工件程序丢失后重新输入就相当费时。我们在对多台使用该系统的加工中心丢程序故障的修理中，发现主要由以下... AB8400 system to lose the reason and deal with the sequence AB AB produced by the United States AB8400 CNC system has been in our country for many years. The system often appear in the use of the loss of the workpiece program. If the machine does not have external memory device, re-enter the workpiece program is lost after a considerable time-consuming. We are in the use of the system more than the loss of the processing center lost sequence repair, found mainly by the following ...