JoeGuardian Automation

2. Power Circuit vs Control Circuit in Industrial Motor Control (Series Post 2 of 22)

Introduction

In industrial motor control, one of the first concepts every automation technician must understand is the difference between the power circuit and the control circuit.

Both circuits work together, but they …

3. Reading Motor Control Drawings: Ladder, Wiring, Single-Line, and Block Diagrams (Series Post 3 of 22)

Wiring Diagrams, Ladder Diagrams, Single-Line Diagrams, and Block Diagrams

Introduction

Reading motor control drawings is one of the most important skills for an automation technician. A motor control panel may look complicated …

4. Start/Stop Seal-In Circuit Explained for Industrial Motor Control (Series Post 4 of 22)

The Foundation of Industrial Motor Control

Introduction

The Start/Stop seal-in circuit is one of the most important circuits in industrial motor control. If you understand this circuit, you are building a strong …

5. Two-Wire vs Three-Wire Control in Industrial Motor Control (Series Post 5 of 22)

Understanding Automatic Restart, Seal-In Logic, and Motor Control Behavior

Introduction

In industrial motor control, two of the most common control methods are two-wire control and three-wire control.

Both methods can start and stop …

6. Contactors and Motor Starters Explained for Industrial Motor Control (Series Post 6 of 22)

The Hardware Behind Industrial Motor Control

Introduction

In industrial motor control, two of the most common devices inside a control panel are the contactor and the motor starter.

At first, they may look …

7. Overload Protection in Industrial Motor Control (Series Post 7 of 22)

Protecting Motors from Excessive Current and Overheating

Introduction

Overload protection is one of the most important parts of an industrial motor control system. A motor can be connected correctly, the contactor can …

8. Motor Nameplate Explained for Automation Technicians (Series Post 8 of 22)

How Automation Technicians Read Motor Data in the Field

Introduction

A motor nameplate is one of the most important sources of information on an electric motor. Before replacing a motor, setting an …

9. Three-Phase AC Motors Explained for Automation Technicians (Series Post 9 of 22)

The Industrial Workhorse of Motor Control

Introduction

Three-phase AC motors are one of the most common types of motors used in industrial automation. They are found in conveyors, pumps, compressors, fans, mixers, …

10. Wye/Delta and Motor Lead Connections Explained (Series Post 10 of 22)

Understanding 3-Phase Motor Wiring, Low Voltage, High Voltage, and Rotation

Introduction

Three-phase motors are common in industrial automation, but one area that can confuse technicians is motor lead connections.

When you open a …

11. Reversing Starters Explained for Industrial Motor Control (Series Post 11 of 22)

How Forward and Reverse Motor Control Works

Introduction

A reversing starter is a motor starter designed to run a three-phase motor in either direction: forward or reverse.

This is common in industrial machines …