CONTROLS EXPLAINED · SEASON 2

Inside the Machine.
See what makes it work.

Go inside the devices behind industrial automation. Follow current through a contactor, watch a motor turn, and trace the signals between sensors, PLCs and HMI screens.

Motor controlSensors & signalsPLC, HMI & VFDExplore the full tutorials →

Choose a concept.

12 lessons

01

Motor control 26 SEC

Inside a Contactor

Watch the coil energize, the armature move, and the main contacts close.

Explore the training
02

Motor control 30 SEC

Inside a Thermal Overload

See how a thermal overload responds to sustained excess motor current.

Explore the training
03

Motor control 28 SEC

Why Reversing Starters Need Interlocks

See why forward and reverse contactors must never close together.

Explore the training
04

Motors & drives 26 SEC

The Field That Turns the Motor

Explore the rotating magnetic field that drives an induction motor.

Explore the training
05

Sensors & wiring 26 SEC

How an Inductive Sensor Sees Metal

Watch an inductive proximity sensor respond as metal enters its sensing range.

Explore the training
06

Sensors & wiring 30 SEC

PNP and NPN - Follow the Current

Follow the different current paths through PNP and NPN sensor circuits.

Explore the training
07

PLC & HMI 31 SEC

Inside a PLC Scan

Follow the repeating input, logic, and output sequence inside a PLC.

Explore the training
08

PLC & HMI 28 SEC

From Milliamps to Engineering Units

See how a 4–20 mA signal becomes a useful engineering value.

Explore the training
09

Motors & drives 29 SEC

Inside a VFD

Follow the power stages inside a variable frequency drive.

Explore the training
10

Motors & drives 25 SEC

Why a VFD Uses a Speed Ramp

Watch how a programmed speed ramp changes motor acceleration.

Explore the training
11

PLC & HMI 29 SEC

From HMI Button to Machine Action

Trace an HMI command through the PLC to a machine output.

Explore the training
12

Sensors & wiring 27 SEC

Why an Open Contact Can Read Voltage

See why voltage can appear across an open contact in a connected circuit.

Explore the training

LEARN BY DOING

Now make the circuit work.

Connect the concepts to a complete training job. Start with the free motor-starter lesson or choose a guided video tutorial.

These are simplified educational animations. Follow equipment manuals and your workplace procedures for real installations. Simulator practice supplements practical training and does not authorize electrical work.