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51问答网 > 西门子变频器MM420设置完频率参数P1000后为什么按上下键没法用？

西门子变频器MM420设置完频率参数P1000后为什么按上下键没法用？

2025-03-14 22:20:24

推荐回答（1个）

回答1：

在P1000参数的意思是你选择视频设定的来源，0是无设定频率，1是由BOP（高级操作面板）通过上下键来调节，2是模拟设定值，我们一般用操作面板操作变频器时都是将这两个参数P700=1，P1000=1，如果你要做USS RS485通讯，就将他们设为5。

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