Wiring problem with button switch
1. How to wire the button switch with light. There are five terminals on the button. Now I can only measure how to connect the power line, but I don’t know how to connect the light.
Answer: This situation is relatively simple. This kind of switch should have two terminals connected to the light, and the other three terminals are for switches. Find out the terminal connected to the light and the terminal of the switch, and then distinguish which two terminals you want to use to connect Switch, directly connect the light and the switch terminal to be connected in series, so that when the switch is turned on, the light will be on.
A rotor on which a moving contact is attached is received and rotatably held in a body, and a knob is received and held in the body side by side with the rotor and is movable. A plurality of first and second teeth are circumferentially staggered with each other on an outer perimeter surface of the rotor near one end and near the other end, respectively, in the direction of the axis of the rotor to project from the surface. An inclined surface is formed in each of the first and second teeth. A projecting part is formed on the knob to project toward the rotor. In response to a depression of the knob, the projecting part pushes the inclined surface of the second teeth to rotate the rotor and, in response to a return of the knob, pushes the inclined surface of the first teeth to rotate the rotor.
The invention provides a push-button switch including: a star wheel which is rotated by a constant angular step in one direction by a depression of a push button that automatically returns; an indenter which is pressed against the outer periphery of the star wheel by a spring; a contact which is attached so as to corotate with the star wheel, and which serves as a movable contact; and terminals with which the contact is contacted in accordance with a rotation angle, and which serve as stationary contacts. A small projection having a rounded tip end is disposed in each of ridge portions of the star wheel. Even when the slope of each ridge portion does not have a large inclination angle, the star wheel is prevented from being stopped at a position where the ridge portion is opposed to the indenter.
The core of industrial control is the control of the motor, the core of the motor control is the contactor, the conventional component of the contactor coil control is the button switch, today we will take the button switch of GQELE Electric as an example, briefly introduce the function of the button switch in the second Function, use and installation in control loops.
Installation category
This series of buttons are φ22mm panel mounting buttons, and the panel mounting holes are φ22.7mm~φ22.3mm. Standard buttons can use 1~6mm thick mounting panels, and economical buttons can use 1~4mm thick mounting panels.
What is an emergency stop push button switch?
Emergency stop switch, also known as emergency stop switch, emergency switch, kill switch or emergency button, emergency stop button switch, is a fail-safe control switch that provides safety protection for machinery and equipment. People who use machines.
specify the following requirements: Emergency stop switches must be highly visible in colour, labeling and shape for easy operation in emergency situations. So the button has to be a red mushroom head with an arrow, emergency or stop symbol.
Common sizes for mushroom heads are 29mm, 30mm, 40mm or 60mm. The direct operating mechanism must be set on a normally closed contact and have a self-holding function. It requires a twist, pull or key to release the electrical contacts to allow the machine to restart.
Emergency Stop Button (E-stop for short) is an emergency stop device, usually used in mechanical and automation systems to prevent accidental injury or equipment damage. The following are the main functions and features of the emergency stop button in production:
effect:
Emergency stop: When a dangerous or unexpected event occurs, press the emergency stop button to stop the machine or equipment immediately to prevent further injury or equipment damage.
Convenient operation: The emergency stop button is usually located in an easily accessible position of the machine or equipment, and is generally easy to identify and operate.
System safety: By using the emergency stop button, it can reduce the negligence and error of the system operator and help ensure the safety of the system.
Protection equipment: the emergency stop button can automatically cut off the power supply in case of equipment overload, overheating, overvoltage, etc., so as to protect the equipment from damage.
characteristic:
Independent control: The emergency stop button is usually not related to the control of other equipment, and has an independent circuit to ensure that the machine or equipment can be stopped immediately under any circumstances.
Easy reset: Once the emergency stop button is pressed, it must be reset manually to restart the machine or equipment. This can prevent the machine or equipment from restarting in an unsafe state.
Reliability: The emergency stop button must be reliable, operable, and highly reliable and durable to ensure that it can work normally when needed.
Standardization: The color and shape of emergency stop button are generally standardized to facilitate identification and operation, and comply with relevant safety standards and regulations.
The button switch may be the simplest component in the electrical circuit, but it controls the lifeblood of the entire control circuit, so it is also called the "master switch". Understanding all kinds of button switches and using them skillfully and flexibly can make us get twice the result with half the effort.
Button switches are used to switch on or off small current circuits in a short period of time, and are mainly used in electrical control circuits. The current allowed to flow through the button switch is small, generally not more than 5A.
The button is generally composed of a button cap, a return spring, a bridge-type moving contact, a static contact, a pillar connecting rod, and a housing. The opening and closing state of the contacts when the button is not subjected to external force (that is, static), is divided into a stop button (that is, a dynamic break button), a start button (that is, a dynamic close button) and a reset button (that is, a combination of a dynamic close and a dynamic break. integrated button). When the button is under the action of external force, the opening and closing state of the contact changes: the normally open contact under static state is closed, and the normally closed contact under static state is open.
Waterproof push button switches, as the name suggests, are switches that can be operated with wet hands. In some humid environments, it can be used with confidence because it has good sealing performance. The highest IP rating of the waterproof switch is IP68. The waterproof button switch has a reasonable design, long service life, high temperature resistance, and current shock resistance, which can meet your specific use needs.
Precautions
The specific application of these waterproof switches is restricted by many factors, such as the installation method and the installation direction of the product, the pressure difference of the airflow acting on the product, the strength of the fluid rebound and the working voltage. We also need to prevent the intrusion of corrosive gases or the intrusion of substances.
The waterproof metal switch cooperates with the circuit breaker to perform switch operations according to the needs of the system operation mode, and change the system operation wiring mode.
Wiring problem with button switch
1. How to wire the button switch with light. There are five terminals on the button. Now I can only measure how to connect the power line, but I don’t know how to connect the light.
Answer: This situation is relatively simple. This kind of switch should have two terminals connected to the light, and the other three terminals are for switches. Find out the terminal connected to the light and the terminal of the switch, and then distinguish which two terminals you want to use to connect Switch, directly connect the light and the switch terminal to be connected in series, so that when the switch is turned on, the light will be on.
Classified according to the purpose and structure of the contact
(1) Normally open button
(2) Normally closed button
(3) Compound button classified according to operation mode and protection mode Buttons can be classified according to operation mode and protection mode, common button categories and characteristics:
(1) Open type: suitable for embedded and fixed on the panel of switch board, control cabinet or console.
(2) Protective type: with a protective shell, which can prevent the internal button parts from being mechanically damaged or people touching the live parts.
(3) Waterproof type: with a sealed shell, which can prevent rainwater from intruding.
(4) Anti-corrosion type: it can prevent the intrusion of chemical corrosive gases.
(5) Explosion-proof type: It can be used in places containing explosive gas and dust without causing explosion transmission, such as coal mines and other places.
(6) Illuminated button: There is a signal light inside the button, which is not only used to issue operation commands, but also serves as a signal indicator, and is mostly used on the panels of control cabinets and consoles.
(7) Key type: Insert and rotate with a key to operate, which can prevent be operated by a special person.
(8) Emergency type: There is a big red mushroom button protruding outside, which is used to cut off the power supply in case of emergency.
(9) Self-holding button: The button is equipped with a self-holding electromagnetic mechanism, which is mainly used in power plants, substations or test equipment. Operators communicate with each other and issue instructions, etc., and are generally panel-operated.
(10) Knob type: The contact is operated by rotating the handle, with two positions of on-off, generally panel-mounted.
(11) Combined type: combination of multiple buttons. (12) Interlocking type: Multiple contacts interlock with each other. Code-named off, on.
The main technical parameters
Switch rating: ac-15 36v/10a 110v/10a 220v/5a 380v/2.7a 660v/1.8a dc-13 24v/4a 48v/4a 110v/2a 220v/1a 440v/0.6a
Conventional thermal current: 1th 10a
Electric shock Resistance: ≤50mΩ
Insulation resistance: ≥10mΩ
Mechanical life: general button n≥100×10 times; knob ≥30×10 times.
Key button n≥5×10 times; emergency stop button ≥5×10 times
The signal light indicator is a device used to communicate with other drivers. It provides information about the driver’s intention and helps others take appropriate action.
· Automotive turn signal lights
· Traffic lights
The first signal light car was introduced in the late 1800s, and they were used to indicate the direction of traffic. These days, they also show if a vehicle is turning left or right, has its hazard lights on, or indicates a right turn by flashing its right-hand indicator.
A big part of being a safe driver is being able to inform other motorists of your intentions. Signaling lights are both at the frontal and rear part of the vehicle and are sometimes also called “blinkers” and “signal light indicators.” Depending on the side you flicked on, your car will indicate whether you’re turning left or right.
