变频器现场调试故障分析.ppt

ACS800-67 Trouble Shooting,现场常见问题分析及处理,准备工作,故障记录器(Fault logger),警告和故障信息指示 当有故障产生时，它会记录在故障历史里 最近的警告及故障会有时间显示的 故障记录器将保留64个最近的故障,It is possible clear the selected drive FAULT LOGGER,Select the row(s) and update items,Click the Fault Logger,Fault or Warning messages,Desktop preferences: From Cache: values are pick up from the OPC Server cache From Device= “all actual values are pick up from the drive with separate commands”.It is not on-line and causes less load for the communication than other selections. Thus the contents of the fault logger are not updated even it is open on the desktop. By double-clicking with mouse the fault logger icon or by the Update Items-button the contents will be updated. PUT ON-LINE= is full time and real on-line connection. This is applicable also with the parameters and signals.But this causes more load for the communication, which should take into consideration in case by case. See more information from DriveWindow ONLINE HELP,故障记录器(Fault logger),You can set x-axis length of the monitor or a datalogger at any time. X-axis length of a datalogger can also change automatically when the datalogger is uploaded. Note! If a datalogger has never been uploaded, DriveWindow does not know for sure the size of a datalogger channel buffer. Thus DriveWindow does not do any checking about the x-axis length, until it knows more about the datalogger. When size of the datalogger channel buffer is known, DriveWindow does not accept improper setting of x-axis length.,Interval, where you can change the logging interval of the current datalogger.,Pre-Trig (ms), where you can change the number of values kept in the current datalogger before the triggering event. The value is given and shown as time, but the datalogger actually uses a count.,Trig Hysteresis, where you can change the triggering level hysteresis, which is used in triggering the current datalogger.,Trig Level, where you can change the triggering level, which is used in triggering the current datalogger.,Trig Conditions (fault, warning, level etc).,Trig Variable, where you can change OPC address of the variable, which is used in triggering the current datalogger.,Status shows the state of the datalogger. Double-clicking toggles it on-line/off-line. Trigged By shows the triggering reason,Scale channel 1; Two scaling methods available. Same method selected for Monitoring and Datalogger from FILE-menu:Graph/Preferences. Change the scale by double-click channel number.,数据记录器(Datalogger),Select the new signal by the mouse,Add the signal into the datalogger. Repeat points 2 and 3 with all four channels. Note! You cannot specify used channel. DriveWindow defined used channel automatically,Start datalogger,When FILLED, upload data,Delete existing signals from Datalogger one by one,Make your datalogger settings. Scalings, like X-axis length can be done after the uploading,数据记录器(Datalogger),主开关（MCB）无法并网,可能原因： 转子接线相序错误 K4、K5控制继电器松动 编码器信号未反馈或反馈错误,PC上的DriverWindow显示： GRID SYNC FAILED故障 无故障或MCB ACK FAULT故障,主开关（MCB）无法并网,如何处理： 更改转子接线相序 检查继电器是否松动，接线是否正确 检查编码器接线是否正确,MCB并网后迅速跳闸,可能原因： 定子互感器接线错误 检测开关（F8、F9）未合闸 定子限流值设定太小 转速太低 变频器参数下载不全,PC上的DriverWindow显示： STATOR OVERCURRENT故障 无故障显示,MCB并网后迅速跳闸,如何处理： 检查定子互感器接线 闭合检测开关（F8、F9） 检查参数30.04 STATOR CURR TRIP（正式并网是应将其设置为0） 重新下载对应电机的参数,同步失败GRID SYNC FAILED,可能原因： 定子相序错误 转子相序错误 电网和定子电压检测不正确 Crowbar故障,如何处理： 正确连接定子转子的接线 检查电压电流检测线路，更换NUIM-6X板 检查/更换Crowbar,同步失败GRID SYNC FAILED,常见定子相序错误波形,同步失败GRID SYNC FAILED,常见转子相序错误波形,变频器报Crowbar Trip故障,可能原因： 中间直流电压高于1210V 参数20.21、20.22、30.09、30.10设置不正确 Crowbar故障 发电机故障,如何处理： 启动后检查中间直流电压 合理设置20.21、20.22、30.09、30.10参数 检查Crowbar 检查发电机,变频器报ISU TRIPPED故障,可能原因： 转速太高或者太低造成中间直流电压高于1210V INU振荡（发电机尾部编码器故障或者受干扰） Crowbar故障 发电机故障,如何处理： 启动后检查中间直流电压 检查编码器电缆到我柜体端子的接线及屏蔽层，更换编码器 检查Crowbar 检查发电机,变频器报ISU TRIPPED故障,常见编码器干扰波形,变频器报ISU CHARGING FLT,可能原因： 充电后中间直流电压不够高 PPCC link故障（中间直流电压为0） 进线保险熔断 充电电阻或者充电保险熔断 发电机故障,如何处理： 检查中间直流环节是否有短路 检查PPCC link相关环节 检查进线保险 检查充电保险和充电电阻（约5欧姆） 检查发电机,变频器报ISU CHARGING FLT,变频器报EARTH FAULT故障,可能原因： 发电机有接地漏电流 变频器有接地漏电流 电缆、滑环等绝缘不好,如何处理： 在允许的情况下，将30.03的值放大 检查发电机、变频器的绝缘 检查电缆和滑环的绝缘,现场总线通讯错误,由于在AMC-33送电之前给通讯适配器送电，造成了51组参数无显示 重新下载参数后没有更改70组参数的节点地址 错误的通讯配置,变频器报PPCC LINK1故障,可能原因： 光纤未接好或者不纯净 光纤分配单元NPBU故障 AMC-33故障 模块的AINT板、APOW板或者IGBT故障 环境温度过低,NRED不正常,如何处理： 检查光纤 更换NPBU 更换AMC-33 更换模块内的AINT或者APOW或IGBT 等待加热器工作，并使模块内部温度达到工作温度范围,变频器在送控制电后主控板不得电,可能原因： 环境温度太低 24V控制电源故障 AMC-33主控板故障,如何处理： 等待加热器加热完成后自动上电 更换24V控制电源