發布人：http://www.levels4life.com 發布時間：2019-05-30 11:30:11
Many customers of rolling curtain doors reflect that doors can not fall to the bottom, doors can not lift to the top, and so on. In this case, we should first rule out whether the door guide rail and the motor drive mechanism are jammed, but it often happens that the door body does not fall to the bottom and does not rise to the top, which is generally caused by the position error of the limit switch.
So for how to adjust the limit switch of the curtain door, we should first introduce the principle of the limit switch.
Limit switch is a simple switching sensor. It is a switch used to detect whether the object has reached its position. It belongs to the category of mechanical triggers. When an object approaches the limit switch, it triggers.
So what role does the limit switch of the curtain door play?
The up or down shutter is controlled by the motor. When you press the up or down button, the motor will stop the high and low limit switch according to the corresponding direction. When the door runs the high limit switch, the limit switch triggers the motor stop signal. Therefore, the stop of the gate or the increase of the shutter will damage or destroy the whole shutter motor drive component. This is also true of rolling doors running to the bottom.
Therefore, the limit switch plays an important role in protecting the curtain door circuit.
Adjusting the position of limit switch is more delicate, if the minimum limit is too high, it will show that the louver does not fall to the bottom of the phenomenon, if the maximum limit is too low, it will appear, the use of louvers does not reach the peak.
When adjusting, first loosen the screw of two limit switches, then manually set the shutter door to the lowest point. When the shutter door just reaches the lowest point, at this time, on the motor, adjust the minimum switch to the just triggered state, and then tighten the screw. Similarly, manually adjust the curtain door to the highest point. When the curtain door has just reached the highest point, then on the motor, adjust the maximum limit switch to the just triggered state, and then tighten the screw.
After completing the above steps, use buttons to control, open and close several times, observe whether the rolling shutter door reaches the position, repeat three times normally, announce that the adjustment is completed.