Basic Motor Control Circuit. Describe and identify common three wire manual circuits. A manual circuit breaker opens and closes a circuit like a toggle switch.
Two wire control circuits and three wire control circuits. A two wire control circuit can be a simple switch that makes or breaks connection to a motor figure 18 1. It only have a main switch for stop start operation and fuse for motor protection this method have disadvantage and not safe to used because as shown circuit diagram below 1 motor operation always done by manually by operator it not practical and can defected by human error.
As the circuit exists right now the motor will run either forward or backward once the corresponding pushbutton switch is pressed and will continue to run as long as there is power.
When first motor were introduced for application the common control is only basic manual stop and start circuit diagram. Every large motor requires a circuit to turn it on and off. A two wire control circuit can be a simple switch that makes or breaks connection to a motor figure 18 1. Motor control definition 1 manual motor control.
