The first thing to do when there is a problem with the automatic quantitative packaging scale is to identify the cause of the problem. Only by clearly identifying the root cause of the problem can it be successfully repaired.
It should be noted that it is best to first check the mechanical part and then check the parameter settings.
The idea for repairing packaging scales is:
1. Analysis
Firstly, analyze which aspects the problem may be related to in order to conduct targeted checks on whether the relevant institutions are working properly.
2. Observation
To observe whether the various mechanisms of the packaging scale are working properly, the method is to open the chassis door and carefully observe. Some faults are intermittent, so it is necessary to be patient. Many mechanical failures can be easily observed.
3. Targeted maintenance
When you observe that something is not working properly, it's a big step forward from being repaired. Generally, an action will output a signal through the controller to the executing mechanism, which may pass through relays, solid state relays, AC contactors, frequency converters, solenoid valves, drivers, etc. before reaching the final executing components such as motors, cylinders, stepper motors, oscillators, etc. If there are problems in each intermediate link, it will affect the entire action. If a multimeter cannot be used to check, you can try troubleshooting.
4. Observe if there are any changes in the materials compared to usual, including size, flow rate, humidity, etc.
5. After eliminating all mechanical faults, it's basically time for the instrument. The probability of instrument problems is usually the lowest, so don't easily change the normal parameters that worked normally before. You need to take photos and save the changes before, and if it doesn't work, you can adjust it back.