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Common failure phenomena and judgment methods of optical fiber displacement sensors

by:Sure     2021-08-08
Common fault phenomena and judgment methods of optical fiber displacement sensor 1. The digital display shows no display after connecting to the power supply (1) Check whether the power cord is disconnected and the plug contact is good. (2) Whether the power fuse of the digital display meter is blown. (3) Whether the power supply voltage meets the requirements. 2. The digital display meter does not count (1) Change the sensor plug to another digital display meter. If the sensor can work normally, it will explain the common failures and judgment methods of the original digital display meter optical fiber displacement sensor. (1) Check whether the power cord is disconnected and whether the plug is in good contact.   (2) Whether the power fuse of the digital display meter is blown.  (3) Whether the power supply voltage meets the requirements.  2, the digital display meter does not count.   (1) Change the sensor plug to another digital display meter. If the sensor can work normally, it means there is a problem with the original digital display meter.   (2) Check whether the sensor cable is disconnected or damaged.   3. Intermittent counting on the digital display    (1) Check whether the grating ruler is installed correctly, whether all the fixing screws of the grating ruler are loose, and whether the grating ruler is contaminated.   (2) Whether the plug and the socket are in good contact.  (3) Whether the scale is scratched or rubbed with other parts when it moves.   (4) Check whether the precision of the machine tool's guide rail movement pair is too low, causing the grating working gap to change.  4. The digital display shows an alarm.   (1) No grating sensor is connected.   (2) The moving speed of the grating sensor is too fast.  (3) The grating ruler is contaminated.  5. Only the last display flashes after the grating sensor moves.   (1) A or B phase has no signal or is abnormal and only has one phase signal.   (2) One of the signal lines is unavailable. (3) The phototransistor is damaged. 6. The moving grating sensor only counts in one direction, but does not count in the other direction (that is, counts in one direction). The phase is incorrect.  (3) The digital display is faulty.  7. The reading head makes a squeaking sound or is difficult to move when it moves.    (1) There is a crack in the sealant strip.  (2) indicates that the grating is off, and the scale grating is in severe contact with friction.  (3) The lower body ball falls off.   (4) The upper sliding body is severely deformed.   8. After the new grating sensor is installed, its display value is inaccurate.    (1) The mounting base does not meet the requirements.  (2) The installation of grating ruler body and reading head is not up to the requirements.   (3) A severe collision causes the position of the grating pair to change. Regarding the common failure phenomena and judgment methods of optical fiber displacement sensors, stop here. If you have any questions, please call the hotline: 0517-86987700 or visit our Sanmei website www.51gk.com
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