MC07B0220-503-4-00

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MC07B0220-503-4-00

针对电磁方面造成的振动，应从电源入手开始检查。检查三相电压是否平衡，用钳形电流表测量三相电流是否平衡，有没有存在单相运行，生产中发现电动机接线盒内端头接线因紧固不牢，经常烧断，造成单相运行，应加强此处检查并进行消除。若在用钳形电流表测量时，发现三相电流不平衡，且表针摆动时高时低，说明转子有笼条断裂现象。此时应立即停止电动机运行，切断电源，抽出转子进行检查，修复。另外，还应测量三相定子绕组的电阻值，检查绕组是否对称，若电阻值不平衡，则说明有开焊部位，也应抽出转子后进行检查，重新焊接。电机的结构同时包含电气和机械两部分，也可以说是电气和机械的结合点。所以说，它的故障要一分为二的分析。对电机的振动故障原因也要分成两部分。转子在物理结构上不是完全的的中心对称、轴对称。在转动时转动惯量的不平衡导致振动。振动情况根据转速而变化。比如低速情况下振动很小，高速时振动大的情况；反过来也有低转速下振动大，高转速时振动变小的情况。另外，转轴轴承同心度同轴度差也会引起振动，从设计上改用空气轴承可以改善。
调整转子的转动惯量或轴承同心度度同轴度是很专业的工作，除了是原产厂家很难操作。现实中一般的解决办法就是在固定电动机的时候配置减振弹簧、减振橡胶等。

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选择深圳长欣，选择放心，售后无忧大量现货，当天顺丰发货！
主营：本特利，英维思，伍德沃德，福克斯波罗、西屋、瑞恩、施耐德莫迪康、ABB、AB、西门子、摩托罗拉、GE发那科、安川、博世力士乐，ACSO，力士乐等各大品牌的DCS系统配件，机器人系统配件，大型伺服系统备件。

先介绍几点经验。
1、先通读一遍“系统手册”（不管能不能看懂，先了解个大概，以便学习编程时查找）；
2、由位控逻辑入手，逐渐增加定时、计数等条件，把或、与、非关系理顺；
3、进而练习整数运算、实数运算、类型转换；
4、量程转换、PID调节回路的建立及P、I、D参数的理解（最好是有个物理回路验证，比如变频器+电机+测速传感器）；
5、循环、顺序、跳转等程序控制（尽量避免跳转，非跳不可时也是跳的越近越好）；
6、中断、通讯、位置控制....

本人以ABB工业机器人配件DSQC系列和Motorola MVME系列，GE 卡件 模块 驱动器系列为主攻。各位电工朋友可根据自己的条件选择适合自己的PLC品牌，由于PLC的基本框架大同小异，学会一种至于其它的学习起来也就简单了。

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