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How to solve the problem when the safety light curtain sensor lights up in red and when it lights up abnormally


1. When the machine is running, it outputs abnormal signals from time to time. There may be a problem with the connection line of the safety light curtain, the plug is loose, etc., check whether the wire is in good condition, and tighten the screws.

2. The internal circuit of the safety light curtain is damaged, causing direct non-glazing. If the broken safety light curtain is invisible, it should be replaced in time.

3. The position of the safety light curtain has been moved or bumped, resulting in failure to glaze. It is necessary to install the transmitter and receiver in the correct position, unify the horizontal position, and then perform the light curtain alignment.

Four. The lights flicker abnormally. The safety light curtain may be affected by electromagnetic interference generated by the external surroundings, such as inverters. It is best to choose a safety light curtain with shielded wires.

5. There is a problem with the operation of the safety light curtain when the lights are turned on. Light interference from external lights will also affect the light curtain's work. You can better use weaker lights, or use high-quality light curtains with strong anti-interference.

Recommendation of the grating manufacturer: When using the safety light curtain, check and maintain it regularly. Before turning on the machine, check whether the light curtain indicator is normal and whether there is any problem with the safety light curtain beam. For the safety light curtain that has problems, within the normal warranty range, you can choose to return to the factory for repair. If it cannot be repaired for a long time, you must replace it with a new one in time. For machine protection, replace it with a new safety. The light curtain is very important!

Daily maintenance should be done: ①Clean the safety light curtain regularly. The working principle of the safety light curtain is realized through the emission and reception of infrared rays. In the dusty plant, the safety light curtain should be wiped frequently to avoid dust. Disturb to the light.

②For the harsh environment with a lot of oil and water, we should try our best to avoid the safety light curtain from contacting oil and water, and corrosive liquids polluting the safety light curtain.

③Perform regular inspections. The product will be broken after a long period of use. The safety light curtain is no exception. Regular maintenance during use, timely detection of faults and problems, and timely replacement of the light curtain if it is replaced.

When dealing with simple faults, first confirm that the safety light curtain is wired correctly, that it can be energized normally, that the connection line is intact, and the interface is not loose or falling off, and check whether the surrounding interference source has an impact on the safety light curtain. To the corresponding solutions. If the light curtain still cannot be used normally after various inspections, it is recommended to contact the light curtain manufacturer.

What should I do if the safety light curtain sensor lights up in red and if it lights up abnormally? Solve the problem