回复：电机同时运转时，可以绝对同步吗？-技术论坛-工业支持中心-西门子中国

回复：电机同时运转时，可以绝对同步吗？

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黄金如何晋级?

发布于 2012-03-24 22:18:22

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就同步方式而言有下面几种：
1、机械式同步
使用一个主轴，然后通过齿轮或其它的传动方式带另外一个主轴
2、电气控制同步（引用自西门子数控系统功能手册）
2.1、Setpoint coupling (DV)
Use in position controlled operation. The control dynamic response of both spindles
should coincide as far as possible. Preferably, the setpoint coupling should be used.
2.2、Actual value coupling (AV)
Application if no position control of the LS is possible or with great deviation of the
control characteristics between FS and LS. The setpoints for the FS are derived from
the actual values of the LS. The quality of synchronism is worse with a varying spindle
speed than with the setpoint coupling.
2.3、Speed coupling (VV)
Internally, the velocity coupling is a setpoint coupling. The requirements for FS and LS
are lower. Position control and measuring systems are not required for FS and LS.
The position offset between FS and LS is undefined.
实际受机械特性、参数调整及优化、控制方式影响
我们使用两个伺服电机作闭环控制，在Setpoint coupling模式下能达到u级精度

一切皆有可能