REXROTH MKD112C-058-GG2-BN 力士乐伺服电机

　　知道了哪些方面会导致交流伺服电机产生振动故障，实际维修中如何将故障范围进一步缩小进而锁定故障原因是个难点，需要结合具体的现场信息来综合判断。

　　1、故障发生在新设备开机调试后

　　发生在这个时段内的故障最复杂，可能是由于机械制造方面的原因，也有可能是参数调整不正确的原因，需要一步步的排除，排除的原则是先排除简单的原因，后排除复杂的，如果是数控系统装有两台以上相同的驱动器和交流伺服电机，其中一台电机产生振动，可以采用最简单的“对换法”将两台交流伺服电机的伺服驱动器对换，利用此法可以快速判断问题是否出在伺服驱动器参数设置上。

　　2、故障发生在设备运行使用很长时间以后

　　这种情况基本可以排除伺服驱动器参数设置问题，因为如果参数设置不当，早就应该反映出问题了。

　　3、故障发生在刚刚开机后

　　如果刚刚开机交流伺服电机就产生振动，这种情况下可以确定是在数控系统自动寻找机床原点时发生了机械卡阻导致电机不能到达位置或到达位置后产生反复，这种情况下一般是机械故障。

　　4、故障发生在机床正在加工工件时

　　这样的情况首先考虑是由于加工时负载增加而导致的振动，围绕负载增加检查原因。

　　5、故障连续规律发生或断续无规律发生

　　故障连续发生时说明导致电机振动的故障原因一直存在，而断续无规律发生时说明导致电机振动的故障原因有时会发生变化，这种情况如果负载没有很大的变化基本可以排除伺服驱动器参数设置的原因。

　　导致交流伺服电机的振动故障是多方面复杂的原因，从实际操作中总结发现机械故障或机械故障导致的电机故障原因比例较大，在排除这类故障时需要掌握交流伺服系统的工作原理，了解哪些原因容易引起电机振动故障，同时结合现场情况综合判断，才能彻底解决交流伺服电机的振动故障。

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　　It is difficult to know which aspects will lead to the vibration fault of AC servo motor. In the actual maintenance, how to further narrow the fault range and lock the fault cause is a difficulty, which needs to be comprehensively judged in combination with the specific field information.

　　1. The fault occurred after the startup and commissioning of the new equipment

　　The most complex faults occurred during this period may be caused by mechanical manufacturing or incorrect parameter adjustment. They need to be eliminated step by step. The principle of elimination is to eliminate simple causes first and then complex ones. If the NC system is equipped with more than two identical drivers and AC servo motors, one of the motors generates vibration, The simplest "exchange method" can be used to exchange the servo drivers of two AC servo motors. This method can quickly judge whether the problem lies in the parameter setting of the servo driver.

　　2. The failure occurred after the equipment was operated and used for a long time

　　In this case, the problem of servo driver parameter setting can be basically eliminated, because if the parameter setting is improper, the problem should have been reflected long ago.

　　3. The fault occurred just after power on

　　If the AC servo motor vibrates just after starting up, it can be determined that the mechanical jam occurs when the NC system automatically looks for the origin of the machine tool, resulting in the motor unable to reach the specified position or repeated after reaching the specified position. In this case, it is generally a mechanical fault.

　　4. The fault occurs when the machine tool is processing the workpiece

　　In this case, first consider the vibration caused by the increase of load during processing, and check the reason around the increase of load.

　　5. The fault occurs continuously or intermittently and irregularly

　　When the fault occurs continuously, it indicates that the fault cause of motor vibration always exists, while when it occurs intermittently and irregularly, it indicates that the fault cause of motor vibration sometimes changes. In this case, if the load does not change greatly, the reason for servo driver parameter setting can be basically eliminated.

　　The vibration fault of AC servo motor is caused by many complex reasons. It is concluded from the actual operation that a large proportion of motor faults are caused by mechanical faults or mechanical faults. When eliminating such faults, it is necessary to master the working principle of AC servo system, understand which causes are easy to cause motor vibration faults, and make comprehensive judgment in combination with the on-site situation, so as to completely solve the vibration fault of AC servo motor.