Common faults in the use of SICK encoders:
1. Self-fault: It means that the components of the encoder itself are faulty, which causes them to not generate and output the correct waveform. In this case, the encoder needs to be replaced or its internal components must be repaired.
2, the connection cable failure: this failure has the highest probability of occurrence, often encountered in maintenance, should be a priority factor. Usually the encoder cable is open, shorted or poorly connected, in which case the cable or connector needs to be replaced. Special attention should also be paid to whether the cable is not tightly fastened, causing loosening to cause open welding or breaking, and the cable needs to be clamped.
3, +5V power supply drop: refers to +5V power supply is too low, usually can not be lower than 4.75V, causing too low cause is the power supply failure or the power transmission cable resistance value is too large and cause loss, then need to repair the power supply or replace cable.
4. Battery voltage drop: This type of fault usually has a clear-cut alarm. In this case, the battery needs to be replaced. If the reference point position memory is lost, the reference point return operation must be performed.
5. The cable shielding wire is not connected or disconnected: this will introduce interference signals, make the waveform unstable, affect the accuracy of communication, and must ensure reliable welding and grounding of the shielding wire.
6. Loose installation: This kind of fault will affect the position control accuracy, resulting in the position deviation of the stop and the movement is too poor, even if the servo system overload alarm is generated just after the start, please pay special attention.
7, SICK grating pollution This will cause the signal output amplitude to drop, you must use a cotton wool with absolute alcohol to gently wipe the oil.
The SICK rotary encoder is a photoelectric rotary measuring device that converts the measured angular displacement directly into a digital signal (high-speed pulse signal).