What are the common faults of the encoder

What are the common faults of the encoder? The following will be introduced by Pepperl+Fuchs encoder supplier okplazas.com!

1. Encoder fault: it refers to the fault of the encoder's own components, which causes it to be unable to generate and output the correct waveform. In this case, you need to replace the encoder or repair its internal components.

2. Encoder connecting cable failure: This type of failure has the highest probability of occurrence. It is often encountered during maintenance and should be the priority factor. Usually the encoder cable is open, short-circuited or poorly contacted. At this time, the cable or connector needs to be replaced. Special attention should also be paid to whether the cable is not tightly fixed, causing loosening and causing open welding or disconnection. At this time, the cable needs to be clamped.

3. Encoder +5V power supply drop: refers to the +5V power supply is too low, usually not lower than 4.75V, the cause of the too low is the power supply failure or the power transmission cable resistance is too large and the loss is caused, then the power supply needs to be repaired Or replace the cable.

4. Absolute encoder battery voltage drops: This type of fault usually has a clear alarm. At this time, the battery needs to be replaced. If the memory of the reference point position is lost, the operation of returning to the reference point must be performed.

5. The shielding wire of the encoder cable is not connected or falling off: This will introduce interference signals, make the waveform unstable, and affect the accuracy of communication. It is necessary to ensure the reliable welding and grounding of the shielding wire.

6. Loose encoder installation: This kind of failure will affect the accuracy of position control, resulting in excessive position deviation during stopping and moving, and even an overload alarm of the servo system will be generated as soon as the machine is turned on. Please pay special attention.

7. The grating pollution will reduce the signal output amplitude. You must use absorbent cotton dipped in absolute alcohol to gently wipe off the oil stains.