大家好, 为了一个新工程, 我下载了西门子的"Application: Master/Slave Switchover主从切换应用手册"Entry ID:9473023(https://support.automation.siemens.com/CN/llisapi.dll?aktprim=0&lang=en&referer=%2fCN%2f&func=cslib.csinfo&siteid=cseus&caller=view&treeLang=zh&extranet=standard&nodeid0=10804967&objaction=csopen)
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手册中描述从机的启动和停机方法:
The slaves are switched on simultaneously by means of control
word 1 of the master. The actual speed value is transferred to all devices via the peer-to-peer link to enable
recording of a field characteristic for the slaves. The ramp-function generator and speed controller on the
slaves are not active. When the drive is braked, all motors decelerate together along the deceleration ramp of
the master and shut down simultaneously in response to n < nmin.
简单翻译如下:
从机由主机的控制字1控制下与主机同时启动. 当前速度通过装置对装置通讯连接传递给所有从机. 必须关闭从机的斜坡功能和速度控制功能.制动的时候, 所有电机遵从主机的减速斜坡一起减速, 当转速小于最小速度(n < nmin.)时, 主从装置同时停机.

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是否可以这样理解: 从机收到主机通过装置对装置通讯发来的控制字的停机指令后(OFF1), 按主机来的电流给定值运行直至 n < nmin后封锁触发脉冲, 并断开进线接触器? 主从的nmin是否要设为一致?

谢谢!