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 …
Read More3. 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 …
Read More4. 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 …
Read More5. 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 …
Read More6. 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 …
Read More7. 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 …
Read More8. 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 …
Read More9. 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, …
Read More10. 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 …
Read More11. 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 …
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