Industrial Automation, PLC, VFD, and Troubleshooting
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 MoreThe 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 MoreProtecting 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 MoreHow 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 MoreThe 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 MoreUnderstanding 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 MoreHow 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 …
Read MoreMomentary Motor Movement for Setup, Maintenance, and Positioning
Introduction
In industrial motor control, jogging and inching refer to momentary motor operation. Instead of starting the motor and allowing it to stay running, …
Read MoreHand-Off-Auto Control Explained
Understanding HOA Switches in Industrial Motor Control
Introduction
In industrial motor control, HOA means:
H = HandO = OffA = Auto
A Hand-Off-Auto selector switch allows a motor or device to be …
Read MoreWhy We Use Lower Voltage Control Circuits
Introduction
In industrial motor control panels, it is very common to see a motor powered by a high-voltage circuit, while the control circuit operates at …
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