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Three-phase motor uses commutation circuit of travel switch
Source: InternetPublisher:方世玉223 Updated: 2010/12/14
As shown in the figure, two travel switches SA1 and SA2 are used to implement automatic back-and-forth control. This is to use the motor to drive the mechanical impact block to hit the travel switch SA1 to achieve self-stop of forward rotation (KMF disconnection). At the same time, the interlocking contact of SA1 is used. The closing of the point realizes the self-opening of the reversal (KMR closing). vice versa.
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