What is control engineering?<\/h2>\n\n
Control engineering is a subfield of automation engineering and deals with the targeted control of processes in machines, plants, and technical systems in order to achieve a desired state or behavior. The goal is to execute processes efficiently, safely, and reproducibly. <\/p>\n\n
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<\/div><\/div><\/p>\n\nWhat types of control systems are there?<\/h2>\n\n
In control engineering, a distinction is made between three types of control systems, whose applications and techniques can be used for different purposes.<\/p>\n\n
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- Binary controllers<\/strong> use binary signals and have only two states: on\/off or 0\/1,<\/li>\n\n\n\n
- Analog controls<\/strong> are continuous and can take on any value within a range, such as voltage or temperature,<\/li>\n\n\n\n
- Digital signals<\/strong> consist of discrete values (usually encoded in binary) and are used in modern, complex control systems for precise, high-speed data processing.<\/li>\n<\/ul>\n\n
The Difference Between Regulation and Control Technology<\/h2>\n\n
The key difference between control technology and regulation technology<\/a> lies in feedback: While control operates according to a fixed sequence without feedback, regulation responds dynamically to changes. In control engineering, the controlled variable is continuously measured and compared to the setpoint to automatically compensate for deviations. In control technology, on the other hand, there is no monitoring of the actual state\u2014the process runs once or is time-controlled. <\/p>\n\n
Control Technology \u2013 Explained Simply<\/h2>\n\n
A classic example of control technology is the stairwell light: When the switch is pressed, the light turns on for a set period of time and then automatically turns off again\u2014regardless of whether anyone is still in the stairwell. The sequence follows fixed specifications without feedback or readjustment. This is precisely what characterizes control technology: a strictly defined sequence of actions triggered by an input signal, without being influenced by the current situation. <\/p>\n\n
![\"Diagram](\"https:\/\/krayer.de\/wp-content\/uploads\/2025\/06\/Grafik_Steuerungstechnik-1-scaled.webp\")
<\/figure>\n\nDrive Systems as the Basis for Control Systems<\/h2>\n\n
Drive systems, also known as actuators, are devices or systems that, as the name suggests, generate drive and convert this force into specific movements. Actuators can be classified into three different types depending on their area of application: <\/p>\n\n
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- Electric actuators:<\/strong> Convert electrical energy into mechanical force; for example, an electric motor<\/li>\n\n\n\n
- Hydraulic actuators: Use <\/strong>fluid pressure to generate high forces and precisely execute smooth movements even under heavy loads, e.g., forming machines in metalworking<\/li>\n\n\n\n
- Pneumatic cylinders: Use <\/strong>compressed air to generate linear or rotary motion, such as gripper arms in the manufacturing industry<\/li>\n<\/ul>\n\n
![\"Gripper](\"https:\/\/krayer.de\/wp-content\/uploads\/2025\/06\/shutterstock_732811756.webp\" "\\"Pneumatic")
<\/figure>\n\nDrive and Control Technology<\/h3>\n\n
Control technology only works in conjunction with drive technology. It is only through the drive technology\u2019s ability to execute mechanical movements with precision that a control system can carry out physical actions on the target system. Whether rotating, lifting, or conveying\u2014the control system issues the commands, and the drive technology translates them into motion. In this way, it serves as the indispensable link between digital control commands and actual motion sequences in machines and systems. <\/p>\n\n
What types of control systems are there?<\/h2>\n\n
While control engineering provides the theoretical foundations and principles of automated processes, control systems put these into practice. They consist of hardware and software components such as PLCs, relays, sensors, and control programs, and ensure that machines and systems operate precisely according to the specified control commands. Control systems thus serve as the link between planning and actual execution in an industrial setting. <\/p>\n\n
Control cabinets, such as the UL 508A<\/a>, UL 698A<\/a>, or UL 1203<\/a>, house these control systems\u2014along with all their electrical components\u2014in a safe and compact manner. They serve as the control center where all control units are interconnected, enabling such efficient implementation of control processes. <\/p>\n\n
![\"Mitarbeiter](\"https:\/\/krayer.de\/wp-content\/uploads\/2025\/06\/24_12_RecruitingPersonenmarke_A7R9740_final_zuschnitt.webp\" "\\"Installation")
<\/figure>\n\nProgrammable Logic Controller (PLC)<\/h3>\n\n
- Hydraulic actuators: Use <\/strong>fluid pressure to generate high forces and precisely execute smooth movements even under heavy loads, e.g., forming machines in metalworking<\/li>\n\n\n\n
- Analog controls<\/strong> are continuous and can take on any value within a range, such as voltage or temperature,<\/li>\n\n\n\n
![\"Mitarbeiter](\"https:\/\/krayer.de\/wp-content\/uploads\/2025\/06\/24_12_RecruitingPersonenmarke_A7R9988_final_1800x1012.webp\" "\\"Programming")
<\/figure>\n\n![\"Fuses](\"https:\/\/krayer.de\/wp-content\/uploads\/2025\/06\/shutterstock_2201412393.webp\" "\\"Control")
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