MindMap Gallery Processing unit control system diagnosis and troubleshooting
This is a mind map about diagnosis and troubleshooting of the processing unit control system, covering multiple aspects of fault diagnosis and processing steps, including sensor faults, PLC faults, cylinder faults, and gas circuit faults.
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Dive into the world of the Chinese animated film Nezha 2: The Devil's Birth! This knowledge map, created with EdrawMind, provides a detailed analysis of main characters, symbolic elements, and their cultural significance, offering deep insights into the film's storytelling and design.
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Processing unit control system diagnosis and troubleshooting
Diagnose faults
Sensor failure
1. Clamping sensor
1. The material is put in and clamped, but no signal is transmitted to the PLC and the next step of processing cannot be carried out.
2. Material detection sensor
2. The material is put in, but there is no signal transmission
3. Telescopic cylinder front and rear limit sensors
3. Front limit sensor
The workpiece is placed and clamped, but it does not move backwards.
4. Rear limit sensor
After placing the workpiece and clamping it, the sensor has no signal after reaching the rear limit.
4. Pressure up and down limit sensor
5. Upper limit sensor
The workpiece is in place and after the pressing is completed, the cylinder retracts back into place but no signal is transmitted.
6. Lower limit sensor
The workpiece is in place and has been pressed down, without receiving the signal of pressing in place.
PLC failure
5. Input/output unit abnormality
7. Check the insertion status and cable connection status of the input/output unit and expansion unit connectors, determine the faulty unit and replace the unit
6. Poor contact in terminal wiring
8. As the operating frequency of the equipment increases, the terminals or component terminals may become loose, resulting in poor contact.
Cylinder failure
7. Internal and external leakage
9. This is usually caused by the deviation of the piston rod installation position, insufficient lubrication, seal ring or seal ring wear, piston rod damage, etc.
8. Cylinder out of sync
10. It may be caused by improper installation or uneven load.
Air path failure
9. The air path of the solenoid valve is reversely connected
10. The solenoid valve coil is burned out or the valve core is stuck
11. Insufficient air pressure of triple parts
12. The air compressor is not turned on
Troubleshooting
Sensor failure
1. Clamping sensor
1. Clamped in place, but no indicator light comes on, indicating there is a problem with the sensor.
Solution
1. Adjust the appropriate position of the sensor
2. Check whether the circuit of the clamping sensor is correct
3. Change the sensor port and check whether the sensor has signal transmission. If there is no signal, replace it with a sensor that meets the conditions.
2. Material detection sensor
2. The material is put in, but there is no signal
Solution
1. The sensor is not sensitive enough and needs to be increased.
2. The sensor sensitivity is too high. You need to lower the sensor sensitivity.
3. Change the sensor port and check whether the sensor has signal transmission. If there is no signal, replace it with a sensor that meets the conditions.
4. Adjust the appropriate position of the sensor
3. Telescopic cylinder front and rear limit sensors
3. Front limit sensor
Once the front limiter is extended into place, the sensor indicator light does not light up.
Solution
1. Adjust the appropriate position of the sensor
2. Change the sensor port and check whether the sensor has signal transmission. If there is no signal, replace the sensor that meets the conditions.
4. Rear limit sensor
The rear limit is retracted and the sensor indicator light does not light up.
Solution
4. Pressure up and down limit sensor
5. Upper limit sensor
6. Lower limit sensor
PLC failure
5. Input/output unit abnormality
7.
6. Poor contact in terminal wiring
8.
Cylinder failure
7. Internal and external leakage
9.
8. Cylinder out of sync
10.
Air path failure
9. The air path of the solenoid valve is reversely connected
11.
10. The solenoid valve coil is burned out or the valve core is stuck
12.
11. Insufficient air pressure of triple parts
13.
12. The air compressor is not turned on
14.