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北京华大中兴科技有限公司--西门子备件专业服务商：自动化︱驱动︱配电︱能源︱楼宇︱交通
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（十）西门子罗宾康变频器和电机输出故障原因分析(一)：
1、显示名称：Motor Over Volt Fault(电机过压故障)。实际名称：Motor Over Voltage Fault。类型：F。使能：SOP。
潜在原因：测量的电机电压超过“限值”菜单(1120) 中电机跳闸电压参数(1160)设定的阀值。该故障通常由不正确设置或整定变频器引起。可能是副边抽头设置错误， 也可能是输入电压太高。
2、显示名称：IOC。实际名称：Instantanteous Over Current。类型：F。使能：固定。
潜在原因：变频器瞬时过流(IOC)故障通常在系统接口板上IOC测试点的信号超过“输入保护"菜单(7000)中“变频器IOC设定”参数(7110)时产生。
3、显示名称：Under Load Alarm(欠载通知)。实际名称：同显示名称。类型：A。使能：SOP。
潜在原因：变频器转矩电流已经跌到用户预置值以下。
4、显示名称：Under Load Fault(欠载故障)。实际名称：同显示名称。类型：F。使能：菜单。
潜在原因：该故障通常表明负载丢失。变频器转矩电流低于用户预设值超过一定的时间。
5、显示名称：Output Phase Imbal(输出相不平衡)。实际名称：Output Phase Imbalance。类型：A。使能：固定。
潜在原因：软件检测到电机的电流不平衡。
6、显示名称：Output Phase Open(输出相开路)。实际名称：同显示名称。类型：A。使能：SOP。
潜在原因：软件检测到变频器到电机的输出相开路。通常，反馈部分有问题会引起该故障。真正的输出相开路故障会导致IOC故障。
7、显示名称：In Torque Limit(转矩限幅)。实际名称：同显示名称。类型：A。使能：SOP。
潜在原因：变频器在速度回落(由于某一转矩限制条件)工况下超过一分钟。
8、显示名称：In Torq Limit Rollback(转矩限幅降速)。实际名称：In Torq Limit Rollback。类型：F/A。使能：SOP。
潜在原因：该故障或通知（由SOP程序决定)在变频器处于速度回落(由于某一转矩限制条件)工况下超过30分钟后发出。
9、显示名称：Minimum Speed Trip(最小转速跳闸)。实际名称：同显示名称。类型：F/A。使能：SOP。
潜在原因：电机转速低于零速设定”(2200)。引发该故障的原因要么是由于电机堵转(如果速度命令高于“零速设定")，要么是由于低的速度命令(速度命令低于“零速设定")。
10、显示名称：Loss of Field Current(磁场电流信号丢失)。实际名称：同显示名称。类型：F/A。使能：SOP。
潜在原因：仅在同步电机控制下发生，可能是励磁系统故障或励磁系统的输入电源丢失。
（十一）西门子罗宾康变频器和电机输出故障原因分析(二)：
1、显示名称：Over Speed Alarm(超速通知)。实际名称：同显示名称。类型：A。使能：SOP。
潜在原因：电机速度超过“限值"菜单(1120)中“超速设定值"(1170)参数的95%。该通知通常由不正确设置或整定变频器引起。
2、显示名称：Over Speed Fault(超速故障)。实际名称：同显示名称。类型：F。使能：固定。
潜在原因：电机速度超过“限值"菜单(1120)中超速设定值(1170)参数。该故障通常由不正确设置或整定变频器引起。
3、显示名称：Output Ground Fault(输出接地故障)。实际名称：同显示名称。类型：A。使能：固定。
潜在原因：由于输出接地故障条件而导致估算出的接地电压超过电机"限值"菜单下的“接地故障限值”参数(1245)时产生该故障。
4、显示名称：Encoder Loss(编码器信号丢失)。实际名称：同显示名称。类型：菜单。使能：菜单。
潜在原因：原因软件检测到无编码器信号。该故障可能由编码器或编码器接口损坏引起。
5、显示名称：Mtr Therm Over Load 1(电机热过载1)。
实际名称：Motor Temperature (or Motor Current) Over-Load 1。类型：A。使能：SOP。
潜在原因：取决于过载方式选择的电机温度或电机电流，高于过载预设置。
6、显示名称：Mtr Therm Over Load 2(电机热过载2)。
实际名称：Motor Temperature (or Motor Current) Over-Load 2。类型：A。使能：SOP。
潜在原因：取决于过载方式选择的电机温度或电机电流，高于过载预设置。
7、显示名称：Mtr Therm Over Load 2(电机热过载2)。
实际名称：Motor Temperature (or Motor Current) Over-Load Fault。类型：F。使能：固定。
潜在原因：电机温度(或电机电流，由选定的过载方式决定)超出“过载故障阈值"一定的时间，该时间由“过载超时”。
8、显示名称：Motor Over Volt Alarm(电机过压通知)。
实际名称：Motor Over Volt Alarm(电机过压通知)。类型：A。使能：SOP。
潜在原因：电机电压超过电机“限值”菜单中的“电机过压限值”参数的90%。
