How can LED pixel lighting projects be judged and fault points locked?

How can LED pixel lighting projects be judged and fault points locked?

Nowadays, more and more LED pixel lighting projects are widely used in society. Compared with ordinary incandescent lamps, LED pixel lighting have higher brightness, lower energy consumption, and longer service life.  So LED facade lighting have gradually become the mainstream of the lamp market. up. While becoming the mainstream of electric lights, the fault problems and solutions of LED facade lighting have naturally become things that everyone wants to know, so today Shenzhen Win-E Illumination Lighting CO., Ltd. will tell you about the faults of LED lights in Shenzhen. Problems and solutions:

 

First of all, if we want to understand the solution to the LED pixel lihts failure, we need to know its structure first. Whether it is a ceiling lamp or a light bulb, their internal structure is composed of lamp beads and drivers.

 

1. The LED pixel lights are off.

When the LED lamp beads are not bright, we should first check whether the circuit is OK. If the LED lamp bead is just installed, then we can measure it with an electric pen, or replace it with an incandescent lamp, and carefully verify whether there is voltage in the circuit. After we have ruled out the circuit problem, we will start the next step of inspection.

When the LED lamp beads are not on, there is a high probability that the driver has failed. Because LED light-emitting diodes have high requirements on current and voltage, too large or too small current or voltage will affect the normal operation of LED light-emitting diodes, so the driver is required to maintain the current and voltage. When we turn on the light and the LED light will not light up, we can consider buying a new driver for replacement.

 

2. The brightness of the LED point light is dim.

When LED pixel lighting manufacturers manufacture LED lamps, they divide the lamp beads of LED lamps into strings. The LED lamp beads of each string are connected in series, and each string is connected in parallel. Therefore, when one of the LED beads in a string burns out, the entire string of LED lamp beads will not light up. Therefore, if only a certain lamp bead is burned, you can solder the two welding legs behind the burned LED lamp bead together with a soldering iron. If every string of lamp beads has a lamp bead burnt out, then you have to consider whether it is a driver problem.

 

3. LED facade lights flashes.

After the LED lights flicker, you first need to use an electric pen to check whether there is current and voltage in the circuit, and then check the driver of the LED lights. If there is no problem, you can check the circuit controlled by the switch, that is, the switch controls the live wire, and the neutral wire contacts the LED light. If there is no problem with the circuit, it is possible that the LED lamp has self-induced current. The easiest way is to buy a 220V relay and connect the coil to the lamp in series to solve the problem.

What is the best way to judge and lock the fault points in LED Facade lighting projects?
Generally, LED Pixel lighting projects include four major parts: controllers, lamps, wiring, and power supply. Among them, the commonly used quick inspection method is [exchange test, exclude one by one].
Take the following fault as an example:
● (1) You can try to connect signal lines 2, 3, and 4 to controller 1. If the lamps display normally, it proves that it is a problem with the main control. If the lamps cannot display normally, continue to test the lamps;
● (2) Check the status after replacing the lamp in the purple position. If the lamp displays normally, it proves that the lamp is faulty. If the lamp cannot display normally, then test the wiring problem;
● (3) Replace the three wires of A, B, and C respectively. If the lamps display normally, it proves that there is a wiring problem. If the lamps cannot display normally, check the power supply.
The above steps can be combined with the actual environment of the site and operated one by one from easy to difficult.

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