Saturday, December 18, 2010

【 Weak current College 】 automatic valve works



To pan-type sensor automatic doors, for example about the working principle of automatic doors.

Translate automatic valve unit consists of the following parts:

1, power motor: provides open and close the door of the main power, acceleration and deceleration control of door leaf, the entire automatic door run main power.

2, the host controller: it is the automatic door of command centers, through internal knitted with instruction program for printed circuit board and chips, issue the appropriate directives, command motor or electric lock system; at the same time people master regulator door leaf opening speed, open range wait parameters. If the said power motor is the person's feet, then the primary controller is like a human brain, the need for outside of control how the actions of both feet.

3 the sensing probe: also called sensors, is responsible for receiving and processing external signals, like the human eye, when moving objects into its visual range, it is to master a pulsed signal-door signal; when the object stops running sensor will shut the door to the main controller issue, of course, only the signal so the door can be clamped to the person or object, so for security reasons, it is usually an additional infrared system is to judge the door has no obstructions.

4, belt (some manufacturers use triangle belt): used to transport motor produced power, traction and lifting away turn System door leaf.

5, walk round the door leaf spreader for hanging the system: the doors, at the same time in the activities of the traction drive door leaf to run under.

6, walking track door leaf: like the train tracks restraints spreader of door leaf, go round system to make it in a specific direction.

7, the lower part of the orientation system: is the door leaf lower guidance and positioning device, preventing the door leaf at run time before the door swing.

When the door leaf to complete a gate and closed, its workflow is as follows:

Inductive detectors detect someone or objects close to the pulse signals to master, the master informed the motor running after the judging, while monitoring the motor speed to notify when the motor in a slow and entered the afterburner. Be sure to run the motor current is doing a forward running power to synchronous belt, then synchronous belt will power to open the door hanger system; after opening of the door leaf to judge by the controller, usually over a certain period of time (the time from the site may set by the administrator) if the door is not in the middle of moving objects, inductive detector will send to the master, so shut the signal, it completed a switch.

If the automatic valve has failed, you can pass the above aspects through troubleshooting, if I can find is which part is wrong, the problem is easily solved, especially some automatic valve is at the field, to find manufacturer repairs nor is it a short time can visit the service and, therefore, to understand a little bit of principle or useful. Of course, if it is not a professional, it is recommended that you do not own demolition repair.


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