In the process of using fast doors, we often encounter some minor problems. The entire door is not damaged, and there are no other problems with the parts. However, the curtain of the fast door could not be lowered, and the controller did not display the words "fault".

 

In the process of using fast doors, we often encounter some minor problems. The entire door is not damaged, and there are no other problems with the parts. However, the curtain of the fast door cannot be lowered, and the controller does not display the word fault, but the curtain cannot be started. At this time, most people will think that the motor of the door is damaged, but in fact, as long as you carefully check the information on the servo electric control box, you will find that the information prompt under the running state is the prompt safety 2, not the usual prompt safety.
The problem of this fast door failure is that the safety photoelectric does not accurately illuminate the reflector at the other end, resulting in no reflected feedback signal, so the safety photoelectric will send the signal to the control box to tell the safety system that there is an object under the fast door. For the sake of safety, the curtain cannot be lowered. At this time, check the safety photoelectric on the edge of the door frame, and you will find that the red warning light of the safety photoelectric is on.
As we all know, this problem is that the safety photoelectric does not receive the safety feedback infrared, so it is only necessary to fine-tune the safety photoelectric or reflector, so that the infrared emitted by the safety photoelectric can return normally and be received by the safety photoelectric.
The reason for this problem may be that the door vibrates during rapid operation, so for a long period of time, the screws of some parts will loosen, causing the spare parts to shift. Of course, this problem may also be that the screws were not tightened during the installation process. Therefore, it is necessary to check the fast door regularly to avoid such problems!
Key words:Qingdao fast door; Qingdao Industrial Lift Gate