Flowchart schematic diagram for the Control Circuit of a Star Delta or Wye Delta Electric Motor Controller - A how to learn skills training guide for electric motor controller

To help facilitate for a better understanding and further learning and training of the concept of the star delta or wye delta control (ckt) circuit covered in our previous article, a flowchart diagram is presented below as a follow up learning guide which shows a schematic representation of the sequence of operation for the starting and stopping and running operation of the star delta or wye delta electric motor control circuit in order to provide a visual aid to help diagrammatically visualize how the control circuit flows.

Flowchart guide for the Control Circuit of a Direct On Line DOL Electric Motor Controller - A how to do guide for electric motor controller

To help facilitate for a better understanding of the concept of the Direct On Line (DOL) control circuit covered in our previous article, a flowchart diagram is presented below as a follow up guide which shows a schematic representation of the sequence of operation for the start stop and run operation of the DOL electric motor controller control circuit in order to provide a visual aid to help diagrammatically visualize how the control circuit flows.

Control Circuit of a Star Delta or Wye Delta Forward Reverse Electric Motor Controller - A basic industrial process automation control how to do guide for reversible star (wye) delta motor controller

An electrical schematic diagram for the power circuit of a reversible star delta or wye delta motor controller was tackled in our previous article, where it showed an illustration of the wiring combinations using three (3) phase circuit breakers, magnetic contactors and thermal overload relay to achieve the different variation of motor terminal connections in star and delta configuration in relation to the three (3) phase supply source voltage, hence the term power circuit diagram.

Single Phase Capacitor Start and Capacitor Run Electric Motor Control-A basic industrial process automation control technology how to do guide

While three (3) phase AC induction motors have the practical advantage for industrial applications involving large capacity motors, single (1) phase AC motors falls under the category of small size motors most suitable for smaller applications. Capacitor start and capacitor run single phase AC motors are electrically operated rotating devices most popular than its counterpart split phase AC motor due to its favorable advantage of providing high starting torque for applications where the starting load to be driven is relatively heavier than the usual load.

Power Circuit of a Star Delta or Wye Delta Forward Reverse Electric Motor Controller - A basic industrial process automation control how to do guide for reversible star (wye) delta motor controller

Our previous article covered a typical star delta or wye delta motor controller which is focused on a common circuit intended for a single rotational direction of a 3 phase AC induction motor. But certain star delta motor control applications would also require a reversible motor rotation.

Star Delta or Wye Delta Industrial Process Automation Control Motor Wiring Configuration - Recommended wiring configuration suitable for reduced changeover current peaks from star to delta motor connection - A basic How To Learn Guide

Fig-1

With reference to our previous articles which covered the star delta or wye delta motor wiring configuration - the delta motor wiring diagram presented in Fig-1 on the right shows two of each of the six motor terminals joined together and while connected also to each of the three reference source voltages that conforms to an orderly configuration of phase sequence U1-V2-L1, V1-W2-L2, W1-U2-L3.

Power Circuit of a single (1) Phase Direct On Line DOL Electric Motor Controller - A basic industrial process automation control how to do guide

Further to the previously discussed electric motor controller with a three (3) phase Direct On Line (DOL) power circuit is the application of similar DOL power circuit for a single (1) phase small size AC electric motor.

Control Circuit of a Star Delta or Wye Delta Electric Motor Controller - A basic how to guide

Controlling the interchanging star connection and delta connection of an AC induction motor is achieved by means of a star delta or wye delta control circuit. The control circuit consists of push button switches, auxiliary contacts and a timer to act on the conditional contact point logic and time duration which upon reaching a specified time period would provide the switching sequence of the magnetic contactors configured specifically for a star connection and a delta connection of the motor terminals.

The control circuit discussed here consists of conventional physically hard-wired electrical components, wherein each components are individually wired using electrical cables fastened with screws to wiring terminals located in the electrical components. The introduction of logic controllers, however, has made it possible for such tedious wiring task to be conveniently constructed by drawing graphical representations of the circuit on a computer terminal to assemble the sequential logic of the circuit programmed by using a computer software, which is covered in the article Star Delta Control Circuit Using Programmable Logic Controller.

Star Delta or Wye Delta Motor Wiring Configuration - A basic how to guide

The previous article which covered the star delta motor control power circuit for industrial process control presented an electrical diagram showing the interchanging motor wiring configuration for a star connection and a delta connection using magnetic contactors as motor starters. Exploring further with reference to the previous star delta power circuit diagram, if you manually trace each line connections going to the motor you will begin to understand how the following star and delta motor wiring connections are achieved.

Power Circuit of a Star Delta or Wye Delta Electric Motor Controller - A basic how to guide

Reduction of the AC induction motor's starting inrush current is achieved by implementing an interchanging star delta or a wye delta connection of the motor, this can be done by incorporating a configured star delta connection of the motor by using magnetic contactors or magnetic starter switches. The diagram below illustrates this type of motor switching connection used in every electrical industry involving industrial process automation control technology.

A how to guide for the Control Circuit of a Forward Reverse Electric Motor Controller

Controlling the AC induction motor's rotation either in the forward or reverse direction with the push of a button is made possible by the forward reverse control circuit. The electrical diagram below illustrates the operational sequence of the forward reverse control system specific for the command of the forward reverse power circuit used in every electrical industry involving industrial process automation control technology.

A how to guide for the Power Circuit of a Forward Reverse Electric Motor Controller

There are certain applications that requires forward and reverse direction of motor rotation, such as a conveyor system, or perhaps the opening and closing of valves. Another example is with overhead cranes which would also require a hoist up and down function, traverse forward and backward, and a left and right traveling function. Such application would most certainly make use of a forward and reverse motor control which is intended to achieve clockwise and counter clockwise motor rotational direction.

A how to guide for the Control Circuit of a Direct On Line DOL Electric Motor Controller

As mentioned in the previous article, the Direct On Line (DOL) control circuit is an electrical control system which is intended for controlling the DOL power circuit. The electrical schematic diagram below illustrates the operational system of the DOL control circuit used in every electrical industry involving industrial process automation control technology.

A how to guide for the Power Circuit of a 3 Phase Direct On Line DOL Electric Motor Controller

In the simplest method of motor operation for small size AC induction motors, the Direct On Line (DOL) motor controller is most popular in terms of simplicity and control device availability. DOL motor controller is suitable for application with small capacity motors which does not cause too much high inrush current that can pull down the supply voltage of the available power source from the electricity supply grid.

How to Learn Electric Motor Control – A Basic Motor Controller Guide for Electrical Motor Controls used in every electrical industry involving industrial process automation control technology

Have you ever wondered what makes an electric motor work, what special types of control system is incorporated to its circuit to make it run for specific applications?

The electric motor is the most versatile electrical device ever invented which is commonly found in many applications in our everyday life which most of us may be unaware about. Examples of such applications are the elevators, escalators, electric cars, or perhaps you may have also wondered what makes the electric locomotive work with such precision on your daily commute to and from work everyday. The answer of course is electric motors without which would not have made all these things possible to live in our hi-tech world.

But have you also considered what sort of method was utilized to make electric motors function for their desired purpose? What control features was installed to control the motor to operate according to its intended application? If you want to find out, then read this article -  How to Learn Electric Motor Control – A Basic Motor Controller Guide for Electrical Motor Controls - to get to know more about electrical motor control system to gain a better understanding about how to operate electric motors used in every electrical industry involving industrial process automation control technology.