Control
Control components are used in a wide variety of applications with varying degrees of complexity. One example of a simple control circuit is a circuit that turns a light on and off. In this circuit, the control component is often a single-pole switch.
Control circuits used in commercial and industrial applications tend to be more complex than this simple circuit and employ a broader variety of components.
Manual Control
A simple on-off lighting control circuit illustrates an example of manual control. Manual control requires someone to use a switch to turn something on or off. The device being turned on or off may be a light, as in the previous example.
However, many other devices are also controlled manually. For example, a manual starter can be used to start and stop a motor.
Automatic Operation
While manual control of machines is still common practice, many machines are started and stopped automatically or by some combination of manual and automatic control. Automatic control occurs when circuits can turn something on and off without human interaction.
Control Components
A wide variety of components are used in control circuits. This includes components that vary in complexity from indicator lights to advanced systems that monitor, protect, and control AC motors. In some cases, the interaction of these components is dependent only on how they are wired to each other. This is sometimes referred to as hard-wired logic.
The complete range of Siemens control components is too extensive to be fully addressed in this course. However, this course will give you a good start.
| Title: | Basics of Control Components – SIEMENS |
| Format: | |
| Size: | 4.1 MB |
| Pages: | 96 |
| Download: | Right here | Video Courses | Membership | Download Updates |
Dear sir
I want to know which timer will be use to operate a light circuit automaticaly with that timer
There are several types of timers that can be used to operate a light circuit automatically. The choice of timer depends on your specific requirements and the features you need. Here are a few common types of timers used for this purpose:
1: Mechanical Timers: These timers use mechanical components like gears and springs to control the timing. They typically have manual knobs or dials to set the desired time duration. Mechanical timers are simple to use and don’t require any external power source. However, they may have limited flexibility in terms of programming options.
2: Digital/Programmable Timers: These timers have electronic components and offer more advanced features compared to mechanical timers. They usually have a digital display and buttons for programming. Digital timers allow you to set specific on/off times and can be programmed for multiple on/off cycles throughout the day. They often include features like randomization to make the lighting pattern appear more natural and can be powered by batteries or plugged into an electrical outlet.
3: Astronomical Timers: These timers are designed to synchronize with the sunrise and sunset times based on your geographical location. They use built-in algorithms to calculate the daily sunrise and sunset times and adjust the lighting accordingly. Astronomical timers are ideal for outdoor lighting applications where you want the lights to turn on/off automatically based on daylight conditions.
4: Smart Timers: With the advent of smart home technology, there are timers available that can be controlled and programmed through smartphone apps or voice commands. These timers are often part of a larger smart home automation system and offer features like remote control, scheduling, and integration with other smart devices.
When selecting a timer for your light circuit, consider factors such as the required precision of timing, the number of on/off cycles needed per day, power source availability, and any additional features you may require.
Dear sir :
Good evening.
I want to learn electric control circuit any thing for electrical.
Iwant to ask you this is are free or not.
My work electric techniction For RTG crane.
But my company not give use trannning course
Thanks
Analog timer most frequently used in lighting.and it is easy to set the timing also.