(1) Green (HG, GL)
What it means: stands for Safety, Normal, Readiness (i.e., an indication under safe operating conditions or the readiness of a mechanical device to start).
Function: It is often used to indicate the state of equipment ready to start, all auxiliary components are in the state of preparing to be put into operation, various parts are in the state of starting, and the voltage is within the specified range.
(2) Red (HR, RL)
What it means: Stands for an alarm or stop of an abnormal condition (i.e., a light alarm for a situation that is likely to be dangerous and needs to be dealt with immediately).
Function: It is often used when the important part of the equipment is cut off by the protective electrical appliance, and the temperature exceeds the specified limit.
(3) Yellow (HY, YL)
What it means: Stands for a warning (i.e., a state change or approaching a limit value) standby, intervention
Function: Generally remind the operator to pay attention to the standby or operation of the equipment, especially the debugging state or the short-term stay state.
(4) White (HW, WL)
What it means: Represents a general signal (i.e., a normal signal, the circuit is energized).
Function: It is often used when the main switch is in the working position, the equipment is working, etc.
(5) Blue (HB, BL)
What it means: The selector switch is in the specified position
Purpose: Can be red, green, yellow colors other meanings not defined (e.g., function selection 1, etc.)
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More on that
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Tianyi switch - a measure to reduce the ripple and noise voltage of the switching power supply
Reduces EMI interference
The metal shell is used as a shield to reduce the interference of external electromagnetic field radiation. To reduce electromagnetic interference from the power line input, an EMI filter is added to the power supply input.
At the output, capacitors with good high-frequency performance and low ESR are used
The use of polymer solids ...
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Tianyi switch - precautions for the use of proximity switches
1. If it is installed on metal, a certain space must be ensured to avoid interference between the proximity switch and the metal other than the detection object, resulting in failure. The metal parallel to the sensing surface must be 3 times the sensing distance from the sensing surface. The metal around the shaft of the proximity switch must be outside the cylinder, close to ...
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Tianyi switch - the operation method of dual power automatic transfer switch
First, first place the dual power supply on the adjustment table, and the phase wire and the neutral wire (neutral line) are docked in place, and can not be connected wrongly.
Second, after the line is connected, it is necessary to check the installed line, and then turn on the main switch of the debugging station to turn on the common and standby working power supply.
Three, when the double ...
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Tianyi switch button - the color meaning of the button and indicator light and the place of use
1. Buttons
1. Red
Operation in hazardous situations. It is often used for emergency stops
Stop and break. It is often used to stop all machines, stop one or more motors, stop a certain part of a piece of equipment, make the electrical components lose power, and have a stop function reset button.
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VTeam switch – how to operate a linear DC power supply correctly
1) Voltage Setting: Turn on the DC switch, adjust the voltage knob to adjust the voltage reading to the desired operating power connection. If you need to lower the voltage, turn the potentiometer slowly so that the drip rate of the voltmeter is compatible with the speed of the manual adjustment knob.
2) Constant Current Setting: Connect ...
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The LA42V series pushbutton switch is newly launched
LA42(V) series pushbutton switch is a new series of products independently developed by the senior technical team of VTeam Electric. It can be used in applications with rated insulation voltages up to 690V and nominal ratings of A600 (AC-15) and Q600 (DC-13). LA42(V) series pushbutton switches have a beautiful appearance ...
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Tianyi switch - the role of the travel switch (limit switch) and its working principle
The scope of use of the travel switch (limit switch).
The range of use of travel switches (limit switches) is very wide, so what is the effect of travel switches (limit switches)? The position switch (limit switch) refers to the maintenance of the micro switch from external forces, oil, water, gas, ...
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Tianyi switch - introduction to the types and characteristics of limit switches
Conventional domestic travel switch
LX19-001/111 in the LX19 series, LXK3-20S/T in the LXK3 series, JLXK1 series JLXK1-111/411/511 in the conventional travel switch are the most representative.
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Tianyi switch - how to select the switch?
1. Use less plastic switches
The switch is composed of a panel, a current carrier, a nozzle and a base, etc., and a good switch is mostly made of stainless steel inlay, which is safe and anti-electric shock. On the contrary, most of the inferior switches are made of plastic, although they are insulated, they are prone to leakage and flammability, and potential safety hazards will occur.
2 ...
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Q&A on Cam Switches and Load Disconnectors (11-21)
Q11: What is the maximum number of connecting rods for the rear mounting of P1 and P3?
A: Up to 4 sections can be added, each section is 25mm.
Q12: Does the P switch with SVB in the model come with PE grounding and N-wire terminals?
A: P switch models with SVB are equipped with PE grounding and ...
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Tianyi switch - maintenance of disconnector switch
1) Clean the dust on the surface of the porcelain, check whether the surface of the porcelain is glazed or damaged, whether there are cracks and flashover marks, and whether the iron and porcelain joints of the insulator are firm. If the damage is severe, it should be replaced;
2) Wipe the oil stains on the blades, contacts or fingers with gasoline and check the contact ...
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Tianyi switch - the classification of dual power transfer switches
It is mainly divided into ATS and STS.
STS static toggle switch
STS (Static Transfer Switch), also known as static transfer switch. The STS automatically switches to the second channel to supply power to the load after the first channel fails.
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Tianyi switch - classification and application of dual power transfer switch
The dual-power automatic transfer switch is mainly used in the emergency power supply system, which automatically switches the load circuit from one power supply to another (standby) power supply switching appliance to ensure the continuous and reliable operation of important loads. Therefore, the dual-power automatic transfer switch is often used in important places of electricity consumption.
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Tianyi switch - introduction to the type of disconnector switch
According to the different ways in which it is installed
It can be divided into outdoor disconnector and indoor high-voltage disconnector. Outdoor disconnector refers to the disconnector that can withstand wind, rain, snow, filth, condensation, ice and heavy frost, etc., and is suitable for installation on terraces.
According to the different structures of its insulating pillars ...
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Tianyi switch - what does the 2P3P of the air switch mean
2P means two poles, which means that this air switch has two connection ports, one to connect to the neutral wire and one to the live wire, which is suitable for single-phase circuit connection, or can also be used to connect two-phase power supply in a three-phase circuit.
3P is the meaning of three poles, there are three connection ports, and all of them are ...
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Tianyi switch - the difference between air switch and leakage protection switch
1. Differences in appearance
Although these two types of switches seem to be very familiar, but there are still differences, half of the leakage protection switch is the same as the air switch, and the other half is not, it is equipped with a test jump button and a recovery button, which are not available in the air switch.
2 ...
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Tianyi switch - what are the differences between limit switches and proximity switches?
First, the characteristics are different
1. Limit switch: The limit switch has the characteristics of small size, multiple functions, high precision, adjustable limit, strong versatility and easy maintenance, installation and adjustment.
2. Proximity switch: The proximity switch has the characteristics of a limit switch, and at the same time has the sensing performance.
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Tianyi switch - dual power supply automatic transfer switch normal working conditions
1) Ambient air temperature: The upper limit of ambient air temperature is +40°C, the lower limit of ambient air temperature is -5°C, and the average value of ambient air temperature for 24h does not exceed +35°C
2) Altitude: The altitude of the installation site does not exceed 2000m.
3) Atmospheric conditions: Atmospheric relative humidity in the surrounding air ...
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Tianyi switch - the difference between high-voltage load switch and circuit breaker
1. The high-voltage load switch can be broken with load and has the function of self-extinguishing arc, but its breaking capacity is very small and limited.
2. The high-voltage isolation switch is generally not able to break with load, there is no arc extinguishing cover in the structure, and there is also an isolation switch that can break the load.
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Tianyi switch - PCB design considerations for switching power supplies
In the design of switching power supply, the physical design of the PCB board must be proper, otherwise it may cause excessive electromagnetic interference and lead to unstable power supply.
1. The design process from the schematic diagram to the PCB should be rigorous and perfect: the establishment of component parameters ...
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