GRAFCET Exercises

Learn GRAFCET through easy, practical exercises from automation technology. Find beginner-friendly exercises with solutions for school, training, and university.

Easy

Electric Hand Dryer

Scenario: When the sensor (B1) detects hands, the blower (M1) runs for 15 seconds.
Easy

UV-C Disinfection Lamp

Scenario: A button (S1) activates a UV lamp (H1) for 30 seconds. For the process to restart, the button must be released (NOT S1).
Easy

Drilling Unit with Delayed Cooling

Scenario: Start via S1. Drill (M1) starts immediately, coolant (P1) starts with 2s delay. The step ends when the drill reaches the end position (BG1).
Easy

Package Ejector with Warning

Scenario: A sensor (B1) detects a package. A warning light (H1) illuminates for 3s. Once the package has passed the sensor (NOT B1), the ejector (Z1) extends to the end switch (BG1).
Easy

Two-Phase Mixing Process

Scenario: After the start signal (S1), the motor (M1) stirs for 10s. After 4s, the heater (H1) switches on. The process only ends when a separate temperature sensor (B2) confirms the target temperature.

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GRAFCET Exercises | Practice Tasks