Table of Contents
What is the control circuit?
A control circuit is a special type of circuit used to control the operation of a completely separate power circuit. Consider a 1,000 horsepower, large industrial motor driving a water pump. The motor is connected to a high voltage electrical supply of 2,400 volts.
How do you create a circuit?
Here are the steps for building this circuit:
- Connect the battery snap connector.
- Connect the resistor.
- Connect the LED.
- Use the short jumper wire to connect the terminal strips into which you inserted the LED and the resistor.
- Connect the battery to the snap connector.
What is control logic diagram?
Control Logic Diagram – A diagram that provides easy to read graphic representation of the operation of individual system equipment controls using basic digital logic symbols. These symbols functionally relate manual and process input action to the process control and operator display output actions.
What type of drawing shows a sequence of controls?
A sequence drawing, is one way of showing how the product you are designing could be manufactured in industry (in a factory). Basically it is a drawing of each stage of manufacture and includes brief notes or instructions. It normally follows a flowchart which simply lists each stage.
What are two basic types of control circuits?
The two types of ladder control circuits commonly used are the 2-wire control circuit and the 3-wire control circuit. The 2-wire control circuit uses maintained contact devices to control the magnetic motor starter. The 3-wire control circuit uses momentary contact devices to control the magnetic motor starter.
Why control circuits are needed?
Circuit control devices allow you to turn the device on when it is needed and off when it is not needed. Some devices, like multimeters or televisions, require the selection of a specific function or circuit. A circuit control device makes possible the selection of the particular circuit you wish to use.
Why is it called 3 wire control?
2. Three wire control means, one wire for stop command (“NC” Pushbutton) and two wires for drive start command of “Forward and Reverse(“NO” Push button)”. In three wire control, the stop command is provided separately.
What are the two major types of control circuits?
How do circuits work?
An electrical circuit is composed of a source of electrical power, two wires that can carry electric current, and a light bulb. One end of both the wires is attached to the terminal of a cell while their free ends are connected to the light bulb. The filament becomes heated and produces light.
How do you make a simple electrical circuit with a battery?
To make a simple electrical circuit with a battery, use wire strippers or scissors to strip the ends of a length of insulated wire, but do not cut all the way through the wire. Install your batteries in a battery pack, then attach your wires to the battery pack using a battery snap or electrical tape. Fasten the other end of the wire to the
How do you wire a battery to a circuit board?
Attach the end of one wire to one side of the battery, making sure that the wire maintains contact with the metal of the battery. Repeat with the other wire on the other side of the battery. Alternatively, if you are using a battery snap, snap the end onto the end of a 9-volt battery or the battery pack. Use caution while building your circuit.
What do you need to build a simple circuit board?
Gather the necessary materials. To build a simple circuit, you will need a power source, 2 insulated wires, a light bulb, and a light bulb holder. A power source can be any type of battery or battery pack. The rest of the materials can be found at your local hardware store.
How do you avoid electrical shock when building a circuit?
Use caution while building your circuit. Although unlikely, it is possible to get a very small shock if you touch the wire directly while attached to the battery. You can avoid this by only touching the insulated part of the wire or removing the batteries until you install the light bulb.