中达变频器22kw带18.5kw甩干电机,启动时间200秒,显示电流在8HZ时攀升到70A,然后OL报警

2025-02-25 06:51:38
推荐回答(4个)
回答1:

启动时间200秒 是不是时间太长了点 我不太懂你这个甩干机的工艺过程 但是启动时间也就十几秒 后者是 几秒钟 最终达到 理想转速 你这一直8HZ运转 是什么意思 不明白 可能是因为你的 闭环控制的原因吧 (你没说太清楚工艺要求和过程)空载16A应该正常 变频器运行在8HZ 电流不该达到70A 不知道你是启动之后多久 攀升到70A的 50HZ之前 电流应该是随着负载变化的 那么考虑是不是负载有突变呢 有掐住的现象 ,或者是电动机轴承 或者是轴承连接的地方有问题再或者 是不是考虑电动机绝缘问题呢 这三个问题 你要逐个考虑 逐个排除 如有不懂的地方 请追问

回答2:

应该重新设置 F/V 曲线。

回答3:

8hz频率太低了

回答4:

低频转矩不行

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