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Cloth machine no-load self-stop power-saving circuit

Source: InternetPublisher:拳制龙 Keywords: Power saving BSP electric motor Updated: 2020/12/08

27. No-load self-stop<strong>Power Saving</strong><strong>Circuit</strong>.gif

As shown in figure a of the textile machine power-saving control circuit, VTH1-VTH3 are bidirectional thyristors, R, and C are absorption circuits, Rz is the trigger
current-limiting resistor, and Kl is the starting reed switch. K2 is the stop reed head, Yl and Y2 are magnets. Three-phase power supplies Ll, ​​L2, and L3 are added to the motor M through VTH1-
VTH3 . Move the clutch handle, push Yl to the starting position, the contacts inside Kl are connected, VTH1-VTH3 are triggered conduct, and the motor M is energized to run; when stopping, the self-stop magnet J Y2 installed on the clutch handle is close to K2, K2 The internal normally closed contact is open. A power outage on the same circuit is triggered, VTH1~VTH3 are cut off one after another, and the motor M stops.




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