Automatic doors are the doors that many hotels will choose. Automatic doors are expensive and expensive to repair, so how to extend the life and care of automatic doors is a period of many people's upsets. Xiaobian wrote this article specifically to summarize common automatic door failures. 1, caused by dust and rain problems Solution: Make waterproof and regular maintenance as much as possible (the dust level and waterproof level of the automatic door are not reflected in the automatic door standard). 2. More intermediate nodes from the control end to the blocked end Solution: Minimize intermediate nodes in electrical design 3, revolving door radar failure The general two-wing automatic revolving door is equipped with four revolving door radars, two on the outside of the door and two on the inside of the door. A common fault in the outer side of the door is that it is wet by rain and causes burnout. Solution: Make waterproof. The failure of the radar inside the door. Generally, the automatic door user will install a hot air curtain inside the automatic door. The hot air curtain is too close to the revolving door radar, which will cause interference to the radar, causing the radar to self-excitation, causing the automatic door to continue in the intermittent operation mode. Solution: Negotiate with the consumer 4, anti-pinch sensor failure A two-wing rotary automatic door has a clip-on sensor on the inside and outside of the door. The common fault is that there is an anti-jamming zone, and the detection distance changes in summer and winter. Although it meets the automatic door standard, there are still security risks. Solution: Install the detection sensor on the lower right side of the outer wall of the door to reduce the anti-clamping zone. 5, the failure of safety rubber The two-wing rotary automatic door is equipped with two safety rubbers, which are contact sensors located at the front end of the rotary wing. The current forms of safety rubber sensors are divided into: a photoelectric type, photoelectric failure rate is relatively small. b Airbag type, if the safety rubber is pressed all the time, the sensor function will be lost. c Micro-switch type, which is greatly affected by thermal expansion and contraction of rubber. d bone joint type, the rubber band used for the pericardium is easy to age and break. At present, the safety rubber of most automatic door manufacturers will appear hard in winter, which will make its safety function lose its function or the safety function will be weakened. Solution: Use low temperature antifreeze rubber. 6, the failure of the conductive slip ring The conductive slip ring is a very important component in the two-wing automatic door. The common faults are mainly: the water-induced conductive slip ring burns out. The reason for the general water inflow is: a. The automatic door user installs the fire-sensing head above the inner side of the automatic door, and the fire-fighting sensor head ruptures and causes the conductive slip ring to burn out, causing large-scale damage to the automatic door electrical system. b caused by the melting of snow in winter. Solution: a. Take waterproof measures. b Avoid installing fire-fighting sensors and plumbing facilities above the automatic doors. 7, the inverter is faulty At present, most of the two-wing automatic revolving doors are composed of PLC and inverter to form an electrical control system. The common faults of the inverter are: a water ingress and burnout, and b dust is too much damage. Solution: Make waterproof measures and remove dust regularly. 8, anti-collision foot sensor failure The number of sensors used by different manufacturers' automatic doors is different, but the installation position and function are the same. The foot sensor is mounted on the lower end of the safety rubber. Common faults: The detection beam sweeps the outer wall during operation. Workaround: Adjust the angle and detection distance The anti-collision electronic eye is mounted on the inner curved surface of the rotating wing and the lower end of the display window mullion. Common faults: the transmission of the electronic eye and the reception of the electronic eye are not correct, causing malfunction. Solution: Carefully adjust. 9, component quality issues If the automatic door is installed thousands of miles away, because of the quality problem of a resistor, send a maintenance personnel to the site for repair, the cost can be bought hundreds of high-quality resistors. Solution: Choose high-quality revolving door brand components. The above is about the common faults and troubleshooting of automatic revolving doors, and the Oulan Kaiduan revolving door engineer reminds: automatic revolving doors belong to high-precision automatic control equipment after all, maintenance personnel require certain electrician knowledge, especially weak electricity knowledge, so choose as much as possible Approved professional repairs. About SD DEXIANG: Carbon Crystal Heater,Infared Electric Heater,Carbon Crystal Infrared Panel Heaters,Far Infrared Carbon Crystal Panel Heater Shandong Dexiang Electrical Technology Co.,Ltd , https://www.heater-kerosene.com
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