Problems related to the power, pneumatic, and hydraulic sources of the automatic screw locking machine often cause malfunctions in automation equipment.
Examples include workshop power failures, low power capacity, blown fuses, or poor plug contact; air or hydraulic pumps not activated; FRL units or regulators not turned on; or unloading and pressure valves in the hydraulic system remaining closed.
When inspecting the automation system, the following aspects should be checked:
1. Power, Pneumatic and Hydraulic Sources
Power supply: Includes the power source for each individual machine and the main power supply of the workshop.
Pneumatic source: Refers to the air pressure supply required for pneumatic equipment.
Hydraulic source: Refers to the operation of the hydraulic pump used in the automation equipment.
2. Check whether the position of the sensors in the automation equipment has shifted.
Due to maintenance negligence, sensor positions may shift, malfunction, or lose sensitivity.
Regular inspection and adjustment are required, and defective sensors should be replaced immediately.
Because automation equipment vibrates during operation, sensors may loosen over time; therefore, regular inspection for correct positioning and secure fastening is essential.
3. Inspect the relays, flow control valves, and pressure control valves of the automation equipment.
Relays, like magnetic sensors, may develop contact sticking or grounding issues after long use, affecting circuit reliability and requiring replacement.
In pneumatic and hydraulic systems, throttle valve openings and pressure control valve springs may loosen due to vibration.
These components require the same routine inspection and maintenance as sensors.
4. Inspect the electrical, pneumatic, and hydraulic circuit connections.
If the above steps reveal no issues, check all circuit connections. Inspect electrical wires for open circuits or damage, especially inside ducts. Check pneumatic tubes for bends or cracks, and hydraulic hoses for blockages. Replace any pneumatic or hydraulic lines that show serious deformation or damage.
5. Inspect the Controller
After confirming that the above steps are correct, the malfunction may occur in the controller of the automation equipment, but it is unlikely to be a program issue.
First, do not immediately conclude that the controller is damaged. As long as no severe short circuit has occurred, the controller will not be damaged, since it is equipped with internal short-circuit protection. In general, minor short circuits will not cause the controller to burn out or fail.