题目：HA400电火花线切割机步进电机异常故障维修方案设计目录1.设备介绍....................................................................................................................11.1设备信息........................................................................................................11.2设备工作原理................................................................................................21.3设备操作........................................................................................................31.4故障现象........................................................................................................31.5故障原因分析................................................................................................42.安全操作规程............................................................................................................52.1一般要求........................................................................................................52.2工作前要求....................................................................................................52.3工作中要求....................................................................................................52.4工作后要求....................................................................................................53.故障诊断流程方案设计及实施................................................................................63.1HA400电火花线切割机步进电机故障流程诊断方案.................................63.2方案的实施....................................................................................................74.修复验证..................................................................................................................154.1故障排除方法..............................................................................................154.2修复后运行..................................................................................................16总结分析...............................................................................................................