Six common faults and solutions of online weighing machines

Online weighing machines, also known as online checkweighers, automatic weighing machines, automatic checkweighers, sorting scales, sorting scales, weighing inspection machines, etc., are widely used. Below, Kenwei Technology summarizes the common faults and solutions of automatic weighing machines in actual use, hoping to help you. (1) The online weighing machine is powered on, and the touch screen does not display 1. Check whether the power supply is normal and see if the switch of the power supply is damaged; 2. Whether the leakage switch in the electric box has tripped; 3. Check the switching power supply Whether it is damaged; 4. Check whether there is a short circuit in the 24V circuit and whether the fuse is burned; 5. Whether the touch screen itself has quality problems. (2) All three belts of the conveying line do not rotate 1. Check whether the 24V voltage output by the switching power supply is normal; 2. Check whether the communication between the display screen and the PLC is normal (in the 'System Fault' of the 'Main Menu' of the display screen) There is a 'PLC-IO port' option, which tests the communication between the display screen and the PLC, and can check whether the communication is faulty). (3) The belt of the conveyor line does not run in a single segment. 1. Check that the synchronous belt is not stuck or damaged; 2. Check that the conveyor belt is not stuck by foreign objects; 3. Check whether the connection terminals of the motor are loose or fall off; 4. Use the replacement method to switch the motor drive and motor to see if it is a drive problem or a motor failure. (4) The checkweigher machine shows that the detected product is unqualified, but the rejection device does not reject or the rejection is not in place 1. The rejection is not in place, check whether the rejection output delay and rejection holding time of the system are set correctly; 2. Check the air compressor Check whether the air pressure is normal, check the pressure gauge; 3. Check whether the solenoid valve is faulty, test the solenoid valve by hand to see if there is any response; 4. Check whether the cylinder is faulty; 5. Test whether the solid state relay response is normal; 6. Troubleshoot and check Whether the IO controller part of the weighing scale is burned out. (5) The online weighing machine suddenly appears inaccurate, or deviates greatly from the target value. 1. Check whether the parameter settings have been changed artificially; 2. Whether the vibration of the workshop environment is relatively large or the airflow is large; 3. Whether the distance between incoming materials is the same as the original 4. Whether the weighing platform is clean and whether there is any foreign matter; 5. Whether the conveyor belt of the weighing platform is in contact with the other two conveyor belts; 6. Whether the screw protected by the sensor touches the edge of the weighing platform; 7. The sensor has Not damaged and deformed by artificial heavy pressure; 8. Whether the sensor wire and motor wire are loose or pulled too tightly; 9. Whether the position of the photoelectric switch is adjusted accurately (especially when the measured object is a special-shaped part). (6) The conveyor belt of the online weighing machine deviates and cannot be adjusted. 1. The belt has been used for too long, and it is seriously worn and deformed. Consider replacing the belt; 2. The roller has been used for a long time and is seriously worn, and consider replacing the new roller.
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