Unique Basic Start Stop Control Circuit
The most basic three wire control circuit is the start stop circuit.
Basic start stop control circuit. Step by step procedure for the basic stop start control wiring and diagram on a magnetic contactor with nc and no push button switch and how does it works th. The supply that the contactor is switching grey cables fig1 will therefore be switched off. The reason that this pattern is stop dominant is that we want the stop condition to take priority over the start condition in the case where both.
The circuit to the coil will become broken de energising the coil. There s a diagram shown in the process. Then wire one of the contacts in on the contactor to turn on light 1 whenever the contactor energizes.
If the operator pushes the start button then the run coil will turn on and it seals itself in until the operator pushes the stop button. Here is an animated example of how a start stop circuit works. Once the start button has been pressed the contactor will close which will also close the lock circuit to the contactor holding the supply to the coil.
Use the top diagram to help you figure out how to wire it. You could imagine both are momentary buttons on an operator screen that are on while the operator is actually pushing the button. The inputs to this circuit are the start and stop conditions.
To open the contactor to de energize the switched circuit one of the stop buttons must be pressed. Pressing start immediately sends power through the start pushbutton and the seal in contacting energizing the coil. Motor control circuits are effective way.
This video guides you how the stop start motor control circuits wiring done. Wire your trainer so that pressing push button 1 energizes the contactor and it stays latched in until you press push button 2.