1. Encoder self-failure: It refers to the failure of the encoder's own components, resulting in its inability to generate and output correct waveforms. In this case, the encoder needs to be replaced or the internal equipment repaired.
2. Encoder connection cable failure: the probability of this kind of problem is high, and it is often encountered in repair, so it should be a priority factor. Generally, the encoder cable is open, short-circuited, or in poor contact, and 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 breaking, and the cable needs to be clamped tightly.
3. Encoder +5V power supply drops: It means that the +5V power supply is too low, generally not lower than 4.75V, and the reason for the low power supply is that the power supply failure or the power transmission cable resistance is too large and causes loss, so the power supply needs to be repaired or the cable replaced.
4. ** encoder battery voltage drop: this fault generally has a clear meaning of the alarm, then the battery needs to be replaced, if the reference point azimuth memory is lost, it is necessary to perform the operation of returning to the reference point.
5. The shield wire of the encoder cable is not connected or falls off: this will introduce a disturbing signal, make the waveform unstable, and affect the accuracy of communication, so it is necessary to ensure the reliable welding and grounding of the shielded wire.
6. Loose encoder installation: This problem will affect the accuracy of azimuth control, resulting in abort and moving azimuth deviation out of tolerance, and even the servo system overload alarm will be generated as soon as the machine is turned on, please pay special attention.
7. Grating pollution This will reduce the signal output amplitude, and the oil must be quietly wiped off with absorbent cotton dipped in anhydrous alcohol.
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