Safety light curtain is also known as safety grating, photoelectric protection device, infrared protection device, photoelectric sensor.
There are many manufacturers of safety light curtains in China, and the products are different, but the maintenance inspections are almost the same.
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In the application of the equipment, it is normal for the safety light curtain to malfunction and not to malfunction. If the safety light curtain fails, it may be the working environment and the operation mode. The common methods for detecting the safety light curtain failure are summarized. :
One: direct observation
  This is the first method used to check the safety light curtain. Observe whether the components and circuits of the safety light curtain circuit board have burns and cracks, whether there is a short circuit or open circuit on the circuit board, and the chip is in poor contact. Look at the line of the safety light curtain if the line is connected.
Two: functional program test method:
  The first step is that if there is no problem with the line, our safety light curtain is energized, that is, there is no way to operate normally. Check if there is too much dust on the safety light curtain itself, and cover the light. If there is too much dust, try it. Wipe clean and test.
If there is no good above, if you are not a professional, do not disassemble the safety light curtain at random. You should contact the safety light curtain manufacturer first, and then send it back to the factory for repair. Qily safety light curtains are purchased, and Qily will have professional maintenance checks. Warranty for two years.

The ordinary safety light curtain has no waterproof, dustproof, oil-proof and anti-interference function. If the working environment is poor, the life of the ordinary safety light curtain is greatly shortened. It is best to choose a safety light curtain that is waterproof, dustproof, oil-proof and anti-interference.
Select products according to different environments, so that there is no unnecessary loss.