One, the host button has no effect:
(1) Check whether the power supply of the system power supply is normal and whether the voltage and current provided can meet the system requirements. Within the range of normal DC 13.4-15V, the power line is too thin for transmission distance, and too much system load will cause the voltage to be pulled down. The host does not work properly.
(2) Remove the main line, network cable, and video cable from the host and leave only the power cable. If the host is normal, the host itself is basically normal. Check other devices and lines.
(3) Test the normal voltage and signal of each port of the host to the inter-platform, and compare with the abnormal ones, and use the subsection replacement method to find the fault point.
Second, the host could not call any extension or call disconnection:
(1) Check the signal and voltage of each output port of the main line;
(2) Check whether the host code is correct and whether there is a re-encode phenomenon. Pay particular attention to the re-encode phenomenon that happens when the factory automatic code and the subsequent code change;
(3) Check whether the main trunk connection is correct;
(4) Whether the wire diameter meets the system requirements, whether the wire itself has quality problems;
(5) Is there any damage to the main equipment;
(6) The extension of the longest or farthest station is disconnected, and the call can be called but no intercom is obviously caused by insufficient power supply.
Third, troubleshooting methods and points:
(1) To eliminate the fault, we must first fully understand the system, such as the system operating voltage, current, signal control mode. The role of each output port, set programming, a reasonable number of configurations, transmission methods, transmission distance, transmission environment, equipment use bad environment, installation standards, wiring technology and equipment used in conjunction with the system technical requirements;
(2) A reasonable troubleshooting method will greatly improve the maintenance efficiency. Generally, it adopts the methods of segmentation, grading, replacement, and reduction of the scope. The scope of the fault is narrowed down and determined on a certain device, so that the normal device can be used and the fault can be eliminated. During the elimination process, the important equipment and the only equipment must be guaranteed to be good, and then look outwards. Special attention should be paid to the system parameter setting, and whether the fault phenomenon has regularity or timeliness. All or individual
(3) The analysis must be comprehensive and repetitive. To find out the cause of failure, corrective and preventive measures must be taken. If there is any doubt in the maintenance process, timely consultation will be conducted to ensure the normal operation of the system.
Fourth, with the unlock-related faults:
(1) Firstly check the unlocking signal control mode, the working mode of the electric lock itself, whether the power supply voltage, current, and connection are correct, and whether the selected electric lock and power supply can be used together;
(2) The inspection system cannot be unlocked individually or unlocked completely. The entire unit cannot be unlocked. Please check the voltage of the main trunk line unlocking signal line. The test can be disconnected until the fault point is found. A layer cannot be unlocked. Please check the layer between platforms. Can be determined by alternative means. If a user cannot unlock, check the inter-platform to extension line and the station's unlock button, which can be confirmed by the alternative method.
(3) The system has a variety of unlocking methods, such as: host password unlock, call extension unlock, call center management machine unlock, IC card swipe unlock, these methods are invalid, then there are problems in the public or supporting. Please check the following points separately:
A. Whether there is instantaneous DC2-12V voltage output when the host unlock signal output port is unlocked each time (because the reaction is fast, please use the pointer multimeter to measure to DC10V) Note that all the equipment before the host output is good, please check the next step;
B. Check whether the system power supply has received the host unlock signal. After receiving the power supply, there is no voltage output to the electronic control lock.
C. Check whether the electric lock itself has quality problems;
D. Check whether the electric lock wire diameter can meet the work requirements of the electric lock;
E. Check whether the connection line between the exit button and the matching access control is correct. If there is conflict, separate tests may be disconnected if necessary.
(4) All users can not unlock the possible reasons: check the door to the power supply, the door to the electric lock connection is good. Check whether the lock line is connected (direct press system line 2 and digital line 3);
Treatment method: According to the wiring diagram correctly connected to the transmission line can be unlocked using a password unlocking method, if you can open the electric lock, prove that the door to the electric lock channel no problem to check the main line to the platform platform can not unlock the door.
(5) Some users cannot unlock the device. Possible causes: Check whether the lock line is connected or not connected properly (digital system: line 3 of the extension to the inter-floor platform; direct press type: the extension to the line 2) and extension Is it normal in itself?
Treatment method: use a replacement for a good machine to see if it is normal, if not normal, check whether the connection is wrong.
(1) Check whether the power supply of the system power supply is normal and whether the voltage and current provided can meet the system requirements. Within the range of normal DC 13.4-15V, the power line is too thin for transmission distance, and too much system load will cause the voltage to be pulled down. The host does not work properly.
(2) Remove the main line, network cable, and video cable from the host and leave only the power cable. If the host is normal, the host itself is basically normal. Check other devices and lines.
(3) Test the normal voltage and signal of each port of the host to the inter-platform, and compare with the abnormal ones, and use the subsection replacement method to find the fault point.
Second, the host could not call any extension or call disconnection:
(1) Check the signal and voltage of each output port of the main line;
(2) Check whether the host code is correct and whether there is a re-encode phenomenon. Pay particular attention to the re-encode phenomenon that happens when the factory automatic code and the subsequent code change;
(3) Check whether the main trunk connection is correct;
(4) Whether the wire diameter meets the system requirements, whether the wire itself has quality problems;
(5) Is there any damage to the main equipment;
(6) The extension of the longest or farthest station is disconnected, and the call can be called but no intercom is obviously caused by insufficient power supply.
Third, troubleshooting methods and points:
(1) To eliminate the fault, we must first fully understand the system, such as the system operating voltage, current, signal control mode. The role of each output port, set programming, a reasonable number of configurations, transmission methods, transmission distance, transmission environment, equipment use bad environment, installation standards, wiring technology and equipment used in conjunction with the system technical requirements;
(2) A reasonable troubleshooting method will greatly improve the maintenance efficiency. Generally, it adopts the methods of segmentation, grading, replacement, and reduction of the scope. The scope of the fault is narrowed down and determined on a certain device, so that the normal device can be used and the fault can be eliminated. During the elimination process, the important equipment and the only equipment must be guaranteed to be good, and then look outwards. Special attention should be paid to the system parameter setting, and whether the fault phenomenon has regularity or timeliness. All or individual
(3) The analysis must be comprehensive and repetitive. To find out the cause of failure, corrective and preventive measures must be taken. If there is any doubt in the maintenance process, timely consultation will be conducted to ensure the normal operation of the system.
Fourth, with the unlock-related faults:
(1) Firstly check the unlocking signal control mode, the working mode of the electric lock itself, whether the power supply voltage, current, and connection are correct, and whether the selected electric lock and power supply can be used together;
(2) The inspection system cannot be unlocked individually or unlocked completely. The entire unit cannot be unlocked. Please check the voltage of the main trunk line unlocking signal line. The test can be disconnected until the fault point is found. A layer cannot be unlocked. Please check the layer between platforms. Can be determined by alternative means. If a user cannot unlock, check the inter-platform to extension line and the station's unlock button, which can be confirmed by the alternative method.
(3) The system has a variety of unlocking methods, such as: host password unlock, call extension unlock, call center management machine unlock, IC card swipe unlock, these methods are invalid, then there are problems in the public or supporting. Please check the following points separately:
A. Whether there is instantaneous DC2-12V voltage output when the host unlock signal output port is unlocked each time (because the reaction is fast, please use the pointer multimeter to measure to DC10V) Note that all the equipment before the host output is good, please check the next step;
B. Check whether the system power supply has received the host unlock signal. After receiving the power supply, there is no voltage output to the electronic control lock.
C. Check whether the electric lock itself has quality problems;
D. Check whether the electric lock wire diameter can meet the work requirements of the electric lock;
E. Check whether the connection line between the exit button and the matching access control is correct. If there is conflict, separate tests may be disconnected if necessary.
(4) All users can not unlock the possible reasons: check the door to the power supply, the door to the electric lock connection is good. Check whether the lock line is connected (direct press system line 2 and digital line 3);
Treatment method: According to the wiring diagram correctly connected to the transmission line can be unlocked using a password unlocking method, if you can open the electric lock, prove that the door to the electric lock channel no problem to check the main line to the platform platform can not unlock the door.
(5) Some users cannot unlock the device. Possible causes: Check whether the lock line is connected or not connected properly (digital system: line 3 of the extension to the inter-floor platform; direct press type: the extension to the line 2) and extension Is it normal in itself?
Treatment method: use a replacement for a good machine to see if it is normal, if not normal, check whether the connection is wrong.
Stellite bushing and sleeve are the advantaged products for us , we have produced more than thousands specifications and all of them are produced upon customer`s drawing .
Stellite bushings are famous with its great wear and corrosion resistance and mostly used in Oil & gas industry , steel industry , petrochemical industry, food industry , nuclear industry,etc.
Pump Sleeve,Valve Pump Bushing,Cobalt Alloy Pump Shaft Sleeve,Pump Shaft Sleeve
Shenyang New Industry Co.,LTD , https://www.topcobalt.com