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Starting and stopping principle of two-position control motor
The circuit diagram shows the control circuit of motor 2. SB 1 and SB2 in the figure are set as the start-stop control buttons at a: SB3 and SB4 are the start-stop control buttons of station B, and the two sets of buttons * * * are the same as the control motor M. ..
The multi-control circuit is characterized in that the stop buttons are connected in series and the start buttons are connected in parallel.
2 circuit working principle?
Start: Press the (arbitrary) start button SB2 or SB4 of Party A and Party B → KM coil electric attraction → normally open auxiliary contact closed and self-locked → main contact closed and connected to motor main circuit → motor M runs.
Stop: press the stop buttons SB 1 or sb3→KM coil loses power and releases → its normally open auxiliary self-locking contact disconnects the self-locking circuit → its main contact releases and disconnects the main circuit of the motor → the motor M stops running.
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