140CPU43412A++140CPU43412A 价格

140CPU43412A
140CPU43412A
140CPU43412A




制动时，按下停机按钮SB2，X401常开触点断开Y430线圈，使KM1失电释放，而Y430的常闭触点接通Y431线圈，制动用的接触器KM2线圈通电，对调两相电源的相序，电动机处于反接制动状态。与此同时，Y430的常开触点断开Y432的线圈，KM3失电释放，串入电阻R限制制动电流。当电动机转速迅速下降至某值时，KS1常开触点断开，X402常开触点断开M100的线圈，M100的常开触点断开Y431线圈，KM2失电释放，电动机很快停下来。过载时，热继电器FR常开触点闭合，X403的两对常闭触点断开Y430和M110的线圈，从而使KM1或KM2失电释放，起到过载保护作用。

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ALLEN BRADLEY 280-PWRM35A-M10 NSPP 280PWRM35AM10