五、电动机运行时响声不正常有异响
故障原因①轴承磨损或油内有砂粒等异物；②转子铁芯松动；③轴承缺油；④电源电压过高或不平衡。
故障排除①更换轴承或清洗轴承；②检修转子铁芯；③加油；④检查并调整电源电压。
六、运行中电动机振动较大
故障原因①由于磨损轴承间隙过大；②气隙不均匀；③转子不平衡；④转轴弯曲；⑤联轴器（皮带轮）同轴度过低。
故障排除①检修轴承，必要时更换；②调整气隙，使之均匀；③校正转子动平衡；④校直转轴；⑤重新校正，使之符合规定。
新闻:崇川区ATM机用步进马达57HS51手册
交流伺服电机也是无刷电机，分为同步和异步电机，目前运动控制中一般都用同步电机，它的功率范围大，可以做到很大的功率。大惯量，转动速度低，且随着功率增大而快速降低。因而适合做低速平稳运行的应用。
使用电机时要注意的问题？
答：上电运行前要作如下检查：
1） 电源电压是否合适（过压很可能造成驱动模块的损坏）；对于直流输入的 +/- 极性一定不能接错，驱动控制器上的电机型号或电流设定值是否合适（开始时不要太大）；
2） 控制信号线接牢靠，工业现场要考虑屏蔽问题（如采用双绞线）；
CH750-3-S-B-G4-DR-H3
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一般常用的有溶剂清洗法、化学处理清洁法和机械清洁法。表面干燥清洗干净后可用过滤的干燥压缩空气吹干，或者用12~17℃的干燥器进行干燥，也可用干净纱布擦干。涂敷防锈油的方法1）浸泡法：一些小轴承采用浸泡在防锈油脂中，让其表面粘附上一层防锈油脂的方法。油膜厚度可通过控制防锈油脂的温度或粘度来达到。刷涂法用于不适用浸泡或喷涂的室外建筑设备或特殊形状的制品，刷涂时既要注意不产生堆积，也要注意防止漏涂。
新闻:崇川区ATM机用步进马达57HS51手册
1,直流他励电动机:
励磁绕组与电枢没有电的联系，励磁电路是由另外直流电源供给的。因此励磁电流不受电枢端电压或电枢电流的影响。
2,直流并励电动机:
并励绕组两端电压就是电枢两端电压，但是励磁绕组用细导线绕成，其匝数很多，因此具有较大的电阻，使得通过他的励磁电流较小。
3,直流串励电动机：
励磁绕组是和电枢串联的，所以这种电动机内磁场随着电枢电流的改变有显著的变化。为了使励磁绕组中不致引起大的损耗和电压降，励磁绕组的电阻越小越好，所以直流串励电动机通常用较粗的导线绕成，他的匝数较少。
4,直流复励电动机：
电动机的磁通由两个绕组内的励磁电流产生。
新闻:崇川区ATM机用步进马达57HS51手册
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CH2200-90-S-G2-RT-H0
CH2200-100-S-G2-RT-H0
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CH2200-140-S-G2-RT-H0
CH2200-160-S-G2-RT-H0
CH2200-180-S-G2-RT-H0
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新闻:崇川区ATM机用步进马达57HS51手册
