Introduction to electric lock
The terminal of the electronically controlled lock is actually an electromagnet that controls a simple mechanical device to switch the door. However, the action of the electromagnet is acted upon by a series of commands. When there is no control, first measure the voltage to the electromagnet, and input the switch door command (some are electromagnetic card, some input password), to see if the voltage changes, if there is a change, and the electromagnet does not move, The fault is the electromagnetic control part, and the electromagnetic control part should be repaired or replaced, otherwise the control part is faulty. The control part is more complicated. It has two parts of hardware and software for control, and some are connected with computer interface, which can perform personnel access query statistics. The general control output voltage is controlled by the relay output. First, see if the relay has a sound of suction. If not, measure the voltage of each part of the relay control interface and whether the drive device is damaged. If it is intact, you can further measure the working voltage of the integrated circuit, reset the port and the clock oscillation part. If there is no problem, Generally it is a software failure, which can only be contacted by the developer. If the relay has a pickup sound and the voltage of the relay is normal, the relay contact is damaged or the line to the electronic control part is broken.
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