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
1. When the PID gain adjustment is too large, it is easy to cause the motor to shake, especially after adding D, it is especially serious, so try to increase P and reduce I, and it is best not to add D.
2. Jitter will also occur when the encoder wiring is wrong.
3. If the load inertia is too large, replace the larger motor and drive.
4. If the analog input port interferes and causes jitter, add a magnetic ring to the motor input line and the servo drive power input line to keep the signal line away from the power line.
5. There is also a kind of rotary encoder interface motor, which is easy to cause vibration if the grounding is not good.
Point three
(1) Servo wiring:
a. Use standard power cables, encoder cables, control cables, and whether the cables are damaged;
b. Check whether there is an interference source near the control line, and whether it is parallel to or too close to the nearby high-current power cable;
c. Check whether there is any change in the potential of the grounding terminal to ensure that the grounding is good.
(2) Servo parameters:
a. The servo gain setting is too large, it is recommended to readjust the servo parameters manually or automatically;
b. Confirm the setting of the time constant of the velocity feedback filter, the initial value is 0, you can try to increase the setting value;
c. The electronic gear ratio is too large for the setting, it is recommended to restore to the factory settings;
d. Resonance of servo system and mechanical system, try to adjust the harmonic filter frequency and amplitude.
(3) Mechanical system:
a. The coupling connecting the motor shaft and the equipment system is offset, and the mounting screws are not tightened;
b. Poor occlusion of pulleys or gears will also lead to load torque changes, try no-load operation, if no-load operation is normal, check whether the joint part of the mechanical system is abnormal;
c. Confirm whether the load inertia, torque and rotational speed are too large, try to run at no load, if the operation at no load is normal, reduce the load or replace the drive and motor with a larger capacity.
Point 4
Servo motor jitter is caused by faults in the mechanical structure, speed loop, compensation plate and servo amplifier of the servo system, load inertia, electrical parts, etc.
summary
One. Jitter caused by mechanical structures can be divided into two cases:
1) No-load jitter:
a. The foundation of the motor is not firm, the stiffness is not enough or the fixation is not tight.
b. The fan blades are damaged, which destroys the mechanical balance of the rotor.
c. The shaft is bent or cracked. It can be solved by tightening screws, replacing fan blades, replacing machine shafts, etc.
2) If the shake after the load is added, it is generally caused by the failure of the transmission device, and the following parts can be judged to have defects:
a. The rotation of the belt pulley or coupling is unbalanced.
b. The center line of the coupling is inconsistent, so that the motor does not coincide with the mechanical axis of the transmission.
c. The transmission belt joint is unbalanced. It can be solved by correcting the transmission device to make it balanced.
Two. Jitter caused by velocity loop issues:
Parameters such as velocity loop integral gain, velocity loop proportional gain, and acceleration feedback gain are inappropriate. The greater the gain, the greater the velocity, the greater the inertial force, the smaller the deviation, and the more prone it is to jitter. Set a small gain to maintain speed response and make jitter less susceptible.
Three. Jitter caused by faulty compensation plate and servo amplifier in the servo system:
The sudden power failure and stop during the motor movement produces a lot of jitter, which is related to the improper terminal block and set parameters of the servo amplifier BRK. The acceleration and deceleration time constants can be increased, and the motor can be started or stopped slowly with PLC to prevent it from shaking.
Four. Jitter due to load inertia:
Problems with the guide rail and screw rod cause the load inertia to increase. The moment of inertia of the guide rail and the lead screw has a great influence on the rigidity of the servo motor transmission system, and the larger the moment of inertia and the greater the rigidity under the fixed gain, the more likely it is to cause the motor to shake; The smaller the moment of inertia, the less rigid the motor is, and the less likely it is to shake the motor. The motor can be achieved without shaking by replacing the smaller diameter guide rails and screw rods to reduce the moment of inertia and thus the load inertia.
Five. Jitter caused by electrical parts:
a. The brake is not opened, and the feedback voltage is unstable. Check whether the brake is turned on, control the zero servo function by adding the encoder vector, and output a certain torque to solve the jitter by reducing the torque. If the feedback voltage is abnormal, you should first check whether the vibration cycle is related to the speed, if it is, you should check whether there is a fault in the connection between the spindle and the spindle motor, whether the spindle and the pulse generator installed in the tail of the AC spindle motor are damaged, etc., if it is irrelevant, you should check whether the printed circuit board is faulty, and you need to check the circuit board or readjust.
b. Sudden shaking during the operation of the motor, most of which are caused by the lack of phase, should focus on checking whether the fuse melt is fused, whether the switch contact is good, and measure whether each phase of the power grid has electricity.
|
More on that
|
Buke servo motor - the fault and maintenance method of servo motor encoder
A servo motor encoder failure means that the encoder component is faulty, preventing it from generating and outputting the correct waveform. In this case, the method of repair is to replace the encoder or repair its internal parts.
1. Encoder connection line failure: this kind of failure has the highest probability of repair...
|
|
Buke servo motor - what are the basic applications of AC servo motor?
Material metering
The measurement of powdery materials is commonly used in the way of screw measurement. The purpose of measurement is achieved by the number of turns of the screw rotation. In order to improve the accuracy of measurement, the speed of the screw is required to be adjustable, and the position positioning is accurate.
|
|
Buke launched the MK series enhanced 4.3-inch all-in-one computer
Buke MK series all-in-one machine on the market for more than a year, received unanimous praise from many customers, in the Buke "quality first" to create an end-to-end full life cycle product quality management system" and "demand management" under the internal and external drive, through the application feedback of this series of products and in order to fit more ...
|
|
Buke servo motor - the difference between AC servo motor and stepper motor
The stepper motor is a discrete motion device, which is intrinsically related to modern digital control technology. In the domestic digital control system, the stepper motor is widely used. With the advent of all-digital AC servo systems, AC servo motors are also increasingly used in digital ...
|
|
Buke servo motor - six common faults and treatment methods of servo motors
1. The motor temperature is too high or the smoke is faulty
Cause:
1. Excessive load
2. Two-phase operation
3. Air duct blockage
4. The ambient temperature increases
5. Stator windings are short-circuited between phases or turns
6. Stator winding grounding
7. The power supply voltage is too high ...
|
|
Buke servo motor - servo motor common faults and solutions
1. How to deal with the servo motor not running when there is pulse output?
a. Monitor the current value of the pulse output of the controller and whether the pulse output light is flashing, and confirm that the command pulse has been executed and the pulse has been output normally;
b. Check the control cable from the controller to the driver, ...
|
|
Buke servo motor - servo drive fault and treatment method
1. When the motor rotates, the LED light flashes
(1) Cause of failure: HALL phase error. Solution: Check whether the motor phase setting switch is correct
(2) Fault cause: HALL sensor failure, treatment method: When the motor rotates, detect the voltage of HalA, HalB, HalC ...
|
|
Buke servo motor - AC servo motor maintenance method
1. Please ensure that the environment is clean and avoid oil. When used in dusty and humid places, although the protection level of the servo motor is very high, it will be easy to cause problems if it is often used in such an environment.
2. Regularly check the use of the servo motor to see if there is any damage outside.
|
|
Buke servo motor - the setting of common parameters of servo drive
(1) Azimuth share gain
Sets the share gain of the azimuth ring adjuster. The higher the set value, the higher the gain, the greater the stiffness, and the smaller the azimuth lag under the same frequency command pulse. However, too large a value may cause vibration or overshoot. The parameter values are determined by the detailed servo ...
|
|
Buke servo motor - three control modes of servo motor and detailed introduction
In terms of the response speed of the servo drive: the torque mode has the smallest amount of calculation, and the driver responds the fastest to the control signal; The position mode is the most computationally intensive, and the driver is the slowest to respond to the control signal.
When there are relatively high requirements for dynamic performance in motion, it is necessary to ...
|
|
Buke motor - stepper servo drive as soon as it moves, what is the reason for the alarm
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 to see if it is stable, whether the circuit board maintenance detection current is stable, and at the same time, the electrical ...
|
|
Buke servo motor - the maintenance method of the motor
1. Clean the motor and remove the dust and sludge outside the motor base in time. If there is a lot of dust in the environment, it is best to clean it once a day.
2. Check and wipe the motor terminals. Check whether the junction box wiring screws are loose or burned.
3. Check the screws of each fixing part, ...
|
|
Buke servo motor - AC motor speed regulation method
AC motor speed regulation is achieved by changing the electrical parameters such as the power supply frequency, number of pole pairs and slip rate of AC motor.
1. Use the inverter to change the power supply frequency speed regulation, the speed regulation range is large, the stability and smoothness are good, and the mechanical characteristics are hard. It's just to add the amount ...
|
|
Buke servo - introduction of four common servo control systems
1. Hydraulic servo control system
The hydraulic servo control system is based on the power provided by the motor, and the hydraulic pump is used to convert the mechanical energy into pressure and push the hydraulic oil. By controlling various valves to change the flow direction of the hydraulic oil, so as to push the hydraulic cylinder to make different strokes, different directions of the movement...
|
|
The causes and solutions of the shutdown of the Buke motor due to pollution
Reasons for the shutdown of the speed up Buke motor due to contamination:
1. Bearing lubrication failure or bearing surface damage
Contaminants can disrupt bearing lubrication and damage bearing surfaces. This will cause the friction to generate heat. If the problem cannot be solved, the increased heat may cause the bearing and the ...
|
|
Buke servo motor - servo motor encoder selection attention
One. SERVO MOTOR DIMENSIONS: 38MM, 58MM, 66MM, 80MM.100MM.
Two. Servo motor encoders are divided into: singleturn, multiturn.
Three. Servo motor encoders are divided into magnetic absolute encoders and photoelectric absolute encoders according to the principle
Four. Servo motor ...
|
|
Buke servo motor - how to choose the model of servo motor?
1. The power of the motor
2. The power supply voltage of the motor
3. The encoder type of the motor
4. The size of the base of the motor
5. The movement mode of the motor
6. Motor communication bus
7. Whether the motor is equipped with a brake mechanism
8. Motor driver class ...
|
|
Buke touch screen - daily maintenance and main matters of touch screen
Daily maintenance of the touch screen:
1. The capacitive touch screen should generally be filmed, and it should be pasted well. membranes (double-layer membranes) that meet ESD standards;
2. The capacitive touch screen is cleaned regularly, and the liquid crystal cleaning solution used for the computer is used (alcohol and furniture cleaning liquid cannot be used);
3. Transport...
|
|
How to adjust the speed parameters of Buke servo motor - AC motor?
1. Change the rotational speed by changing the frequency of the mains supply
This is a common method of speed adjustment for AC motors. The power supply frequency can be adjusted to the desired speed by adjusting the inverter, transformer, and other equipment.
2. Change the rotational speed by changing the voltage
In some special cases ...
|
|
Common faults and maintenance methods of Buke touch screen
1. Surface acoustic touch screen.
(1) Fault 1: Touch deviation
Symptom 1: The position of the finger does not coincide with the mouse arrow.
Reason 1: After installing the driver, there is no vertical touch of the bullseye center position when the position is corrected.
Solution 1: Recalibrate ...
|
|
Contact
working hours
