Common Faults and maintenance methods of the access control system
The entrance and exit access control safety management system is a new modern safety management system, which integrates microcomputer automatic identification technology and modern safety management measures. It involves many new technologies such as electronics, machinery, optics, computer technology, communication technology, and biotechnology. It is an effective measure to solve the security management of the entrance and exit of important departments. Applicable to various confidential departments, such as banks, hotels, parking lot management, computer rooms, armories, confidential rooms, offices, intelligent communities, factories, etc.
In the use of the access control system, there will be some faults more or less. Today, the editor will take everyone to understand the common faults and maintenance methods of the access control system.
Fault 1: The valid card cannot open the door
Maintenance method:
1. Check whether the electric lock is normal. Check the power supply or replace the electric control lock.
2. Whether the lock tongue and the lock buckle are mechanically stuck, repair the mechanical failure or replace the parts.
3. Check the indicator light on the control board, check whether the communication between the control board and the module is normal, and troubleshoot.
4. Check whether the communication between the card reader and the module is normal and troubleshoot.
5. Whether the information day closing order is set. Adjust the opening time through software.
6. Whether the operator initializes the access control system or re-authorizes other commands through the software.
Fault 2: access control communication failure
Maintenance method:
1. Check whether the serial port is set incorrectly (determine the serial port used).
2. Check whether there is a short circuit or open circuit on the access control communication bus (exclude the short circuit and open circuit of the communication line).
3. Check that the communication chip 75184 of the RS485 communication card is damaged (replace the communication chip 75148).
4. The RS485 communication card is damaged (replace the RS485 communication card).
5. Check whether the crystal head of the network cable is well done, check whether the network cable is connected, and ping the address of the access control controller.
Fault 3: Access control records cannot be extracted
Maintenance method:
Empty access controller, reload time
Fault 4: The door lock keeps opening
Maintenance method:
1. The operator sets the status of the access control device to normally open, or other reasons cause the controller to be in the normally open state.
2. The controller is faulty.
Fault Five: The IC card cannot be read
Maintenance method:
1. The IC card has been set for the valid time period of card reading when the IC card is authorized (it can be set for valid card reading all day).
2. The access controller is abnormally hot (replace the access control board).
3. Access control read-write antenna (adjust the fine-tuning capacitor to enhance the card reading distance).
Fault 6: The communication between the computer and the controller is unstable
Maintenance method:
1. The signal line that does not meet the requirements or a low-quality signal line is used, and the high-quality signal line needs to be replaced.
2. La pose de la ligne de signal n'est pas normalisée. Si la ligne de signal et la ligne d'alimentation sont dans le même tube, la ligne de signal doit être posée à nouveau.
Auteur : Écrit par Anna Zhang de S4A INDUSTRIAL CO., LIMITED
Factory Address:Building S4A, South Third Lane, Qiuyuling Street, Zhangkeng Village, Hengli Town, Dongguan City, Guangdong Province Office Address:2nd Floor of Jinmin'an Industrial Zone, #529, Bulong Rd. Bantian St. Longgang Dist. Shenzhen, PRC.
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