Start stop circuit diagram _ start stop button wiring diagram: FR---thermal relay, SB 1--jog stop switch, SB2-- jog start on, off KM--contactor coil KM--contactor normally open contact
The circuit diagram is the control circuit of the motor 2. In the figure, SB1 and SB2 are set to start and stop control buttons; SB3 and SB4 are B start and stop control buttons, and 2 sets of buttons jointly control motor M.
The characteristics of the multi-ground control circuit are: the stop button is connected in series, and the start button is connected in parallel.
Start: press the start button SB2 or SB4 → KM coil of the two places (any) to get the electric pull-up → its normally open auxiliary contact closes the self-locking → its main contact closes the motor main circuit → the motor M runs.
Stop: press the two buttons (arbitrary) stop button SB1 or SB3 → KM coil power loss release → its normally open auxiliary self-locking contact opens the self-locking loop → its main contact release disconnects the motor main circuit → motor M stops Running.
Generator automatic start and stop circuit diagram (3)
The pump start and stop control circuit diagram is shown in the figure.
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