ISI202

ISI202步進電機一般不具有過載能力。交流伺服電機具有較強的過載能力。以松下交流伺服系統(tǒng)為例，它具有速度過載和轉矩過載能力。其大轉矩為額定轉矩的三倍，可用于克服慣性負載在啟動瞬間的慣性力矩。步進電機因為沒有這種過載能力，在選型時為了克服這種慣性力矩，往往需要選取較大轉矩的電機，而機器在正常工作期間又不需要那么大的轉矩，便出現(xiàn)了力矩浪費的現(xiàn)象。

1

Q;伺服電機報警過載原因

驅動傳動阻力太大，檢查傳動系統(tǒng)。

2

Q;關于伺服電機過載是否跟電流有關

電動機作為力矩輸出的元件，其過載是機械部分軸力矩大且超過電動機允許的數(shù)值，與電流無關。但現(xiàn)象的表征是電流增大，或等于或超過額定電流。通常情況下電動機配置設計時，其選擇的電動力矩大于機械的軸力矩10~15%，所以，當電動機運行電流達到或略超過85%的額定電流時，基本上可以認定是達到了機械的滿負荷，超過90%時，可以認定為機械（設備）過負荷。

3

Q;伺服電機過載會出現(xiàn)的問題

如果保護不動作的話；電機不轉，電機溫度升高，達到溫度后，就保持這個狀態(tài)不變了。

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