Several Troubleshooting Methods of Access Control System_ Taigewang Technology

There are two kinds of common faults of access control system: 1. Unable to communicate; 2. If the electric lock cannot be locked, how can we solve it? There are two kinds of failure to communicate, one is that 485 access control does not communicate, and the other is that TCP IP controller does not communicate. Communication fault 1: 485 access control does not communicate. The solution steps are as follows: 1. Check whether the 485 communication line has short circuit or open circuit; 2. Measure the voltage at both ends of 485 communication line, and it is normal when it is between 3v5v; 3. Check whether the software port settings correspond to the computer port. 4. Conduct [detection controller] operation on the controller at the interface of the main control console, and observe whether the status indicator of 485 communication converter flashes while operating. 5. Check whether the serial number of the controller has been encrypted (the special encryption tool can be restored). Communication failure 2: the TCP IP controller does not communicate. The solution steps are as follows: 1. Check the communication mode of the controller. Select [small LAN] for LAN and [medium and large network] for cross network segment. When crossing network segments, first set the controller IP to the network IP of the LAN where the controller is located, including IP address, subnet mask, gateway, DNS server, etc. Then search the management computer for a. Net controller and add it. 2. Ping the IP of the controller at the command prompt to see if the network is connected. 3. If it is a cross network segment, check whether the router port is open or IP bound. 4. Use a line measuring instrument to measure whether the network cable is unobstructed. 5. You can take the controller to the computer and test the communication in a LAN. Ensure that the computer and access controller are free of problems. The above is the solution to the non communication fault of the two devices, and the following is the solution to the electric lock fault. Electric lock fault 3: the electric plug-in lock is not locked. The solution steps are as follows: 1. First check whether the wiring is correct. 2. Use a multimeter to measure whether the voltage at both ends of the electric plug-in lock is above 11.5V. 3. Check whether the magnetic sheet of the electric plug-in lock is magnetic or misaligned. 4. If the above methods fail, return the lock to inspection and maintenance. Electric lock fault 4: the electromagnetic lock is not locked or the suction is insufficient. The solution steps are as follows: 1. Check whether the wiring is correct. 2. Measure whether the voltage at both ends of the electric lock is above 11.5V. 3. Check whether the contact between the lock body and the suction sheet is complete and sufficient. The fixing nut of the lower suction sheet can be slightly adjusted to make the suction sheet have a certain movable space. Electric lock fault 5: the electric plug-in lock or electromagnetic lock is not locked for a long time. The solution steps are as follows: 1. First check the door opening delay setting of the access control. Generally, the door opening delay is set within 6 seconds. At the same time, the delay can be adjusted appropriately according to the speed of the door closer to ensure that the delay is longer than the door closing time of the door closer. 2. Online access control delay adjustment method: A. set the door opening delay on the software. b. Adjust the delay knob of the locking power supply. c. Adjust the time-delay jumper on the side of the electric plug-in lock. (see instructions for details).