Point 1: Whether the speed of the motor is normal, whether there is speed jitter and stall (can be checked with a tachometer).
Point 2: Whether the anchor bolts of the motor are loose, whether the foundation is intact, and whether there are debris around.
Point 3: Whether the housing and coupling of the motor are in good condition, and whether the connecting screws of the coupling are loose. Whether there is any debris or smudge on the motor body, whether the ventilation groove is blocked, etc.
Point 4: The air-cooled motor should pay attention to whether the air pipeline is unblocked, whether the connection parts are tight, whether the gate position on the pipeline is correct, and whether the ventilation of natural ventilation is good. The water-cooled motor pays attention to whether the cooling water pipeline is unblocked, whether there is cooling water leakage, and whether the cooling water temperature and flow rate are normal.
Pay attention to the main points
Point 1: Synchronous motors, winding motors, etc. should also check whether the contact between the brush and the collector ring is good, whether there is a commutation spark, and whether the color and shape of the spark are abnormal.
Point 2: Whether the excitation system of the synchronous motor is normal.
Point 3: Whether the connection of the motor wiring and grounding wire is loose.
Special points
Point 1: Whether the current of the running motor exceeds the allowable value, whether it corresponds to the actual load, whether there is a sudden change, whether the voltage is within the allowable range, and whether there is a lack of phase.
Point 2: Whether the temperature of each part of the motor exceeds the allowable value.
Point 3: Whether the bearing is overheated, whether the lubricating grease is sufficient, whether the oil level of the oil level indicator is normal, and whether the oil ring rotates flexibly.
Point 4: Whether the motor is smoking, whether the winding is discolored and other overheating.
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Estun servo motor - how to accurately control the torque of synchronous motor?
1. The electromagnetic torque of the synchronous motor is the interaction between the rotating magnetic field of the stator generated by the power supply voltage and the main magnetic field of the rotor;
2. The intersection angle of the magnetic pole axis of the rotating magnetic field of the stator and the main magnetic field of the rotor is called the work angle;
3. When the power angle is zero, the electromagnetic torque is zero, and the work is zero.
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Estun servo drive - common faults and maintenance of servo drives
Servo drive is a kind of controller used to control servo motor, its role is similar to the inverter to ordinary AC motor, as a precision equipment, it will inevitably have some faults in the process of use, common faults and maintenance methods are as follows:
1. When the motor rotates, the LED light ...
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Estun Robotics FAQs
Estun Robotics FAQs.
After turning over the main switch of the control cabinet, there is no power, the cause analysis and treatment methods:
Please check whether the power supply line of the electric control cabinet is correct;
Please check whether the external power supply voltage meets the type of three-phase AC380V power supply robot
Please acknowledge that the cabinet is broken...
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Estun servo drive alarm A20 common fault analysis
1. Estun servo motor maintenance - overload alarm A04
1. The wiring of the servo motor is wrong or the wiring is leaking
(1) The U, V, and W phase wires of the motor are connected incorrectly
(2) Whether the insertion of the connector on the servo motor side is defective
2. The model of the servo drive and the motor does not match
...
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The reason for the servo drive alarm A04 and its handling method
Alarm code A04 refers to:
Alarm mechanism: The overload rate of the drive accumulates to a certain threshold and triggers an alarm.
Causes:
1. Servo motor brake control circuit problem;
2. Robot power cable problem;
3. The drive parameter setting is wrong;
...
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Experts from the Industry and Information Think Tank Alliance visited Estun Automation
On September 25, 2020, a group of 20 people from the Industry and Information Think Tank Alliance, led by Comrade Fan Bin, Deputy Director of the Department of Political and Legal Affairs of the Ministry of Industry and Information Technology, visited Estun Company for research. Dr. Wang Jiegao, President of Estun Automated Robot Research Institute, and Ms. Yuan Qin, Deputy General Manager, accompanied the visit and investigation. The experts visited ...
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Estun Robot - Common faults and troubleshooting methods of palletizing robots
1. The clamping action of the palletizer is too slow or the clamping stroke of the nail is insufficient.
Causes and solutions: bolts are loose, and the front buckle or inner piece of the board machine is worn. The bolt can be tightened, paying attention to the correct position of the front buckle shaft. You can replace the front buckle or the inner piece of the board machine, after completing the above actions, test its function, if the line ...
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What are the starting preparations for Estun servo motor - DC motor?
The following preparations need to be made for starting when the motor is put into operation after installation or before it is put back into operation after being shelved for a long time:
(1) Use compressed air to blow off the dust attached to the inside of the motor, and remove the wrapping paper at the windshield for new motors. Check whether the bearing grease is clean and suitable.
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Estun servo motor - how to select DC servo motor and reducer
Servo motor selection:
Rotational speed (choose as required)
Torque (the torque that needs to be output by the servo motor is calculated according to the load structure and weight, as well as the rotational speed)
Moment of inertia (this parameter relates to the running accuracy of the servo on the mechanical structure, by the weight of the load structure ...
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Estun servo motor - the cause and solution of servo motor overload
Problem 1: The reason why the servo motor alarms the overload
If the drive resistance is too great, check the drive system.
Q2: What is the difference between stepper motor and servo motor overload capacity?
Question 3: Is the servo motor overload necessarily related to the current?
As the motor torque output ...
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Estun servo motor - comparison of PLC servo and motion control, AC and DC servo technology
Servo system has an important position in electromechanical equipment, and high-performance servo system can provide flexible, convenient, accurate and fast drive. With the advancement of technology and the continuous development of the entire industry, the development trend of the traction system is to replace the traditional hydraulic, DC ...
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Estun Medical and Burt Robot participated in the China International Medical Equipment Fair
The 2021 China International Medical Equipment Fair will be held from May 13 to 16 at the National Convention and Exhibition Center in Shanghai.
Estun Medical will exhibit the unilateral and bilateral versions of the Burt Upper Limb Rehabilitation Training System, which is more suitable for the full-cycle rehabilitation training program of the rehabilitation population, and includes adaptation ...
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Estun servo motor - analysis and troubleshooting of AC servo motor fault
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); (3) The overcurrent relay is adjusted too small; (4) The wiring of the control equipment is incorrect.
2. Failure ...
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Estun Robot - Common faults and treatment methods of welding robots
Common system failures during the welding process
1. Collision of guns: It may be due to the error of workpiece assembly or the inaccuracy of the TCP of the welding gun, you can check the assembly situation or correct the TCP of the welding gun.
2. Arc fault, unable to start the arc: it may be due to the fact that the welding wire does not contact the workpiece or ...
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Estun Servo Motor – The working principle of AC servo motor
AC servo motors are usually single-phase asynchronous motors, with two structural forms: squirrel cage rotor and cup rotor. Like ordinary motors, AC servo motors are constructed of a stator and a rotor. There are two windings on the stator, namely the excitation winding and the control winding, and the two windings are 90 ...
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Estun servo motor - what are the control methods of servo control system?
Generally, there are three control modes for servo: speed control mode, torque control mode, and position control mode.
1. Speed control
(1) Speed system, that is, the motor runs according to the given speed command.
(2) The application of speed control is quite wide-ranging ...
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Estun Servo Motor - How to Select Servo Motor (21-25)
21. How to choose whether to use planetary reducer or spur gear reducer?
Planetary reducer is generally used when high torque is required in a limited space, that is, small volume and large torque, and its reliability and life are better than that of spur gear reducer. Spur gear reducers are used for lower ...
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Estun servo motor - common faults and treatment methods of servo motors
1. Motor encoder alarm
1. The cause of the failure
(1) Wiring fault;
(2) electromagnetic interference;
(3) Encoder hardware damage caused by mechanical vibration;
(4) Pollution caused by the on-site environment.
2. Fault cleaning
(1) Check the wiring and sweep away the fault ...
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Estun servo motor - introduction of three control methods of servo motor
1. Position mode
Look at this name, you can guess a rough idea, to put it bluntly, the position requirements are relatively high, such as the linear servo module this kind of mechanism, the need for the sliding mechanism to stop accurately, just use this mode, speaking of which, let's take a look at the ball screw module ...
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Estun servo motor - the category, structure and performance of "precision transmission micro motor".
AC servo motor
(1) Cage type two-phase AC servo motor (slender cage rotor, mechanical characteristics are approximately linear, small volume and excitation current, small power servo, low-speed operation is not smooth enough)
(2) Non-magnetic cup rotor two-phase AC servo motor (coreless rotor, mechanical ...
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