First, the reason for the alarm code of the pressure sensor
There are generally a variety of reasons for the alarm code of a pressure sensor, among which the following conditions are the following:
1. The sensor circuit is short-circuited or broken due to damage or aging of the sensor sensing element, which causes the machine code to send an alarm signal.
2. The sensor is incorrectly wired, or the connection part with the machine is loose, resulting in inaccurate signal collection or unable to collect signals.
3. The disturbance elements of the sensor measurement signal are large, such as high temperature or frequent sensation.
4. Sensor power supply problems, such as unstable power supply or voltage too low a level problem may cause the sensor to fail to operate normally.
2. Common pressure sensor alarm codes
1. The error code "PPCxx" (xx is a number) indicates that the pressure signal collected by the sensor is beyond the predetermined size and may damage the current machine part.
Solution: Confirm whether the sensor is wired correctly and whether the sensor is working properly.
2. The error code "PSCxx" (xx is a number) indicates that the pressure signal detected by the sensor is too low and may not work properly.
Solution: Check whether the sensor is installed correctly and whether the sensor is damaged or aged.
3. The error code "PCE" indicates that the sensor circuit is abnormal, or the sensor is unable to measure or transmit data due to various reasons.
Solution: Check whether the sensor circuit is normal and whether there is a short circuit or open circuit problem.
4. The error code "PCN" indicates that the sensor scanned the code failed, generally due to the loose wiring of the sensor or the inability to scan the signal.
Solution: Check whether the wiring between the sensor and the machine is strong and loose.
3. Detection method of pressure sensor fault
1. Check whether the sensor is wired correctly, and use the multimeter to see if the sensor's circuit is normal.
2. Use the test instrument to check the measurement scale and accuracy of the sensor, and check whether the sensor is working normally.
3. Acknowledge the operating characteristics and pressure requirements of machine components, and adjust the output of the sensor to adjust as needed.
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