First, the common causes of such faults caused by mechanical oscillation (acceleration/deceleration) when the motor is powered on are:
(1) The pulse encoder is faulty. At this time, the servo system should be checked whether it is stable, whether the circuit board maintenance detection current is stable, and at the same time, whether the voltage on the feedback line terminal of the speed detection unit drops at some points, if there is a drop, the pulse encoder is bad, and the encoder is replaced;
(2) The cross coupling of the pulse encoder may be damaged, resulting in the shaft speed being out of sync with the detected speed, and the coupling should be replaced;
(3) The tachogenerator is faulty. Repair, replacement of the speed tester. In the maintenance practice, the speed measuring machine brush is worn and there are many jamming faults, so the brush of the speed measuring machine should be removed, sanded with sandpaper a few times, and the dirt of the commutator should be cleaned at the same time, and then reinstalled.
Second, the motor is powered on, and the mechanical movement is abnormally fast (flying car) This kind of servo system failure occurs, and the position control unit and speed control unit should be checked at the same time, and the following should also be checked:
(1) Whether the wiring of the pulse encoder is wrong;
(2) Whether the coupling of the pulse encoder is damaged;
(3) Check whether the tachogenerator terminal is reversed and whether the excitation signal line is wrong. Generally, this kind of phenomenon should be handled by a professional circuit board repair technician, otherwise it may cause more serious consequences.
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Buke servo drive fault code 021.2
1. Fault code: E-01, E-02
Significance: The parameters are initialized incorrectly during power-on.
Cause: Incorrect parameter settings.
Solution: Power back on, if the fault is still reported, you need to force the parameter initialization, if it is repeated many times, it cannot be solved.
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How to zero the encoder of Buke motor?
1. Remove the motor encoder, power on the system, and power on the driver
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Point 1
When the servo motor jitters at zero speed, the gain should be set high, which can reduce the gain value. If the alarm stops when starting, the most likely is that the phase sequence of the motor is incorrect.
Point 2
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Buke servo motor - wiring connection of servo motor encoder
(1) Wiring should be done with the power supply OFF, and if the output line is in contact with the power supply when the power is turned on, the output circuit may be damaged.
(2) If the wiring is incorrect, the internal circuit may be damaged, so pay full attention to the polarity of the power supply when wiring.
(3) If and high-voltage lines, ...
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6. When the motor is unloaded and overloaded, the ammeter pointer is unstable and swings
1. Cause of failure
(1) The cage rotor guide bar is welded or broken;
(2) Winding rotor fault (one-phase break) or poor contact of brushes and collector ring short-circuit devices.
2. Troubleshooting
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1. The motor cannot rotate after being energized, but there is no abnormal noise, no peculiar smell and smoke.
1. Cause of failure
(1) The power supply is not connected (at least two phases are not connected);
(2) Fuse blowing (at least two-phase blowing);
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Cause of the failure
1) The sound wave reflection stripes on the four periphery of the surface sound wave touch screen are seriously dusty or scale, resulting in the touch screen not working.
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(1) The cause of the failure
(1) The power supply is not connected (at least two phases are not connected);
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1. Remove the damaged encoder
2. Install a new encoder on the damaged motor
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