The first section is the writing method and characteristics of this book.
Section 2 Methods and Steps of Drawing and Reading Electrical Control Circuit Diagram
The second chapter introduces the relay contact control circuit of three-phase AC asynchronous motor.
The first section describes the forward control circuit of three-phase AC asynchronous motor.
I. Contactor self-locking forward rotation control circuit with overload protection
Two, continuous and inching hybrid forward control circuit
The second part expounds the forward and backward control circuit of three-phase AC asynchronous motor.
A, contactor interlock forward and backward control circuit
Second, the button interlock positive and negative control circuit
Three, button, contactor double interlocking positive and negative control circuit
The third part expounds the position control and automatic cycle control circuit of three-phase AC asynchronous motor.
I. position (travel or limit) control circuit
Second, the automatic cycle (round-trip) control circuit
The fourth part expounds the sequential control and multiple control circuits of three-phase AC asynchronous motor.
First, the sequence control circuit
Conveyor control circuit of the second and third conveyor belts
Third, multiple control lines.
The fifth section describes the step-down starting control circuit of three-phase AC asynchronous motor.
Firstly, the stator winding is connected in series with the resistance step-down start control circuit.
Second, the power-on delay Y-△ step-down start control circuit
Section 6 describes the starting and speed control circuit of wound rotor asynchronous motor.
First, the button operation control circuit
Second, the time relay automatic control circuit
Section 7 describes the braking control circuit of three-phase asynchronous motor.
A, single-phase start reverse braking control circuit
Second, the bidirectional start reverse braking control circuit
Three, transformer-free single-phase half-wave rectification unidirectional start energy consumption braking control circuit
Four, capacitive braking control circuit
The third chapter expounds the relay contact control circuit of multi-speed three-phase AC asynchronous motor.
The first section describes the control circuit of two-speed asynchronous motor.
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