A bootcamp from wiring basics to PLC using ladder logic

discover how industry uses control circuits to drive production lines, detailing inputs, control circuits, power circuits, and three-phase motors. compare classic control with PLC programming and wiring steps.

Learn about current, voltage, and resistance, their units—amperes, volts, ohms—and Ohm's law, plus how power ratings and electrical energy derive from voltage, current, and time.

Explain ac and dc concepts, detailing how ac voltage and current vary over time, how dc maintains a single direction with a constant value, and the sine wave with frequency.

Explore three-phase ac power, the neutral line, star and delta connections, and how line versus phase voltage and active, reactive, and apparent power govern motor performance.

Explore the three-phase motor, its stator and rotor, and how star and delta connections via six terminals create a rotating electromagnetic field.

Learn to design and simulate control circuits using push buttons, contactors, and signal lamps, understanding normally open/closed contacts, coil operation, and status indicators.

Discover circuit protection with breakers that automatically open on faults like overload or short circuit, reviewing low voltage circuit breakers: miniature, moulded case, solid state, magnetic, and thermal magnetic.

Explain the difference between overload and overcurrent in motors: overload is a gradual rise due to excessive load; overcurrent is a rapid surge from a short circuit or ground fault.

Explain how fuses protect circuits from overcurrent by a thin wire that melts to open the circuit, and distinguish fast and slow blow types along with standard amp ratings.

Design a motor starter circuit using start and stop push buttons to control a coil and its own contact in the control circuit.

Wire a motor starter circuit with real components, routing three-phase power through the contactor, overload, and circuit breaker, and wire the control circuit with stop and start pushbuttons.

Demonstrate how an impulse circuit provides momentary motor activation using a pulse push button, normally open and normally closed contacts, and a contactor in the control and power circuits.

Explore the auxiliary relay's working principle and construction, including the coil, contacts, and normal/open/closed patterns. Compare relays with conductors and learn types by coil voltage, switch count, and current rating.

Explore how a timer relay delays actions in control circuits, using a coil and contacts, including normally open and normally closed types, to create cyclic production line delays.

Learn how the automatic stop circuit extends a motor starter with a timer in parallel to stop the motor after a set delay, using start and stop buttons.

Explore the cyclic circuit that drives a motor in a timed sequence. Learn about the power and control circuits, contactors, timers, relays, and start-stop operations.

Explore limit switches and their operating principles, including normally open and normally closed configurations, micro switches, and practical applications such as safety interlocks, counting, fridge lighting, and garage doors.

Explore the automatic inversion circuit moving a box from A to B and back, controlled by limit switches, normally open/closed contacts, and dual contactors.

Explore how an automatic motion inversion circuit uses limit switches and timers to delay motor stoppage in a hydraulic press, enabling cyclic left and right motion.

Design and simulate a star delta starter circuit for a motor, using stop and start push buttons, coil, and contactor in a protected control loop.

Examine inductive proximity sensors, three-wire NPN and BNP devices that detect ferrous metal without contact, using an oscillator and sensing field to drive PLC outputs in speed and positioning.

Capacitive proximity sensors detect insulators—solids or liquids—without contact by perturbing an emitted electrical field, functioning like a capacitor with adjustable sensing range and BNP/NPN outputs.

Explore optical proximity sensors that use infrared or red light to detect objects with LEDs and photodiodes or photo transistors, including through beam, retro reflective, and diffuse reflection types.

Explore how read switches use magnetic fields to close normally open contacts between two ferromagnetic plates, signaling an electronic control unit for fridge, car roof, and piston position sensing.

Explore how flow sensors measure the flow of gases and liquids by combining mechanical and electrical subsystems, and distinguish differential pressure and thermal mass flow sensors.

Explore how a programmable logic controller automates industrial processes by uploading software that replaces relay circuits. Learn fixed versus modular PLC designs, input/output modules, and ladder logic.

Connect a PLC to a circuit using software logic and input types. Learn about digital and analog inputs, memory, CPU, power, and outputs like motor starters.

Learn ladder logic, a graphical plc programming language that represents control circuits with ladder rungs and symbols for normally open/closed contacts, relay coils, indicators, fuses, and circuit breakers.

Explore Zelio Logic PLC by Schneider Electric, covering construction, types (compact SR2 and modular SR3), inputs, outputs, communications, display, power, and ladder programming applications.

Discover how to design, simulate, and upload control circuits to Zillow PLC with Zillow software version 5.4.2, exploring PLC types, discrete inputs, outputs, timers, contactors, and ladder logic diagram.

Design a two-motor ladder logic circuit for a two-line production line that boxes items, counts ten apples with sensors and a counter, and uses a timer plus start/stop controls.

Design and simulate a ladder logic control circuit in Zelio to automate a production line, using five inputs and two outputs, with a counter and timer for sequencing.

Explore Omron plc family, including modular plc, compact plc, and rec plc, with 2560 points and 400k steps, programmed in cx programmer using ladder logic and function block diagram.

Learn to design, simulate, and upload ladder logic circuits to Omron pulses using the cx programmer, including coils, contacts, timers, and wiring concepts.

Design a dual-motor circuit for a phrase machine with a table motor and a cutter motor, controlled by limit switches, PM and stop push buttons, and a timer.

Upload and design the Omron CX-Programmer control circuit using ladder logic, incorporating stop and start push buttons, limit switches, timers, and coils.

Introduce the Simatic world by exploring Siemens PLC families like Logo LC and Step Seven generations, their programming software, and key communication methods used to program and connect them.

Open the Simatic Manager, create a new mixer project on the Simatic 300, add the rack with PS 307, CPU 316, S-300, and output modules, and configure addresses for simulation.

Design a PLC ladder logic circuit to control a mixing tank with two inlets, a motor, an outlet valve, level sensors, and start/stop controls using timers.

Design a circuit for the mixer tank and map inputs and outputs in the symmetric manager using simatic step seven, then simulate online with a PLC.