What are the common control unit failures and solutions for brushless motor motor fully automatic rotor into magnet steel machine?
The following is a brushless motor motor automatic rotor into the magnet steel machine common control unit failure and the corresponding solution:
First, PLC (programmable logic controller) failure
Fault phenomenon:
Program operation error: PLC program may appear logic error, resulting in equipment action sequence disorder, such as into the magnet steel operation steps in reverse order, action incoherent, or some actions repeated or omitted, affecting the quality and efficiency into the magnet steel.
Abnormal input/output signals: PLC cannot correctly receive input signals from sensors, or cannot output correct control signals to the actuators (e.g. motor driver, cylinder solenoid valve, magnet adsorption device, etc.), which makes the equipment unable to operate normally.
Solution:
For program operation errors, use PLC programming software to monitor program operation online, check the logical flow of the program, find out the wrong logical branches or steps, and make modifications and debugging. You can execute the program step by step and observe the running result of the program to ensure that it conforms to the operation flow of the equipment.
Check the input and output modules of the PLC, use a multimeter to check whether the input module receives signals from sensors normally, and check whether the output module outputs control signals normally. If the input and output modules are damaged, you need to replace the corresponding module; at the same time, check the module and the connection lines of external equipment to ensure that the lines are firmly connected, repair or replace the damaged lines.
Second, the controller failure
Failure phenomenon:
Controller crash: during the operation of the equipment, the controller may suddenly stop responding, resulting in the entire into the magnetic steel machine to stop working, may be due to software conflicts, hardware failure or environmental factors (such as high temperature, electromagnetic interference, etc.).
Loss or error of control parameters: Important control parameters stored in the controller (such as the speed of the magnet, magnet adsorption force, positioning parameters, etc.) may be lost or modified, so that the equipment can not run in accordance with the predetermined parameters, affecting the accuracy and stability of the magnet into the steel.
Solution:
When the controller is dead, first try to restart the controller and observe whether normal operation can be resumed. If the controller often crashes, check the working environment of the controller, including temperature, humidity and electromagnetic environment, to ensure that it is in the normal range; for hardware failure, contact the manufacturer for repair or replacement of the controller.
If the control parameters are lost or incorrect, if there is a backup before, re-import the backup parameters into the controller; if there is no backup, according to the original parameter settings of the device, re-enter and adjust the parameters, and test to ensure that the device operates normally.
Third, the human-machine interface (HMI) failure
Fault phenomenon:
Display abnormality: HMI may appear screen flicker, display garbled code, part of the information is not displayed or displayed inaccurately, resulting in the operator is unable to clearly access the operating status of the equipment and operating information.
Failure of touch function: The operator cannot set and control the equipment through touch operation, such as unable to modify parameters, unable to start or stop the operation into the magnet, etc.
Solution:
For display abnormality, check whether the power supply of the HMI is stable, and check whether the connection line of the display module is loose or damaged. If it is a software problem, update the software program of the HMI to ensure that its communication with PLC or controller is normal; for hardware damage (such as display or display driver circuit failure), contact the manufacturer for repair or replacement of the HMI.
When the touch function fails, check the connection lines of the touch panel, clean the surface of the touch panel, and exclude the touch failure caused by dust or dirt; if the touch panel is damaged, you need to replace the touch panel or the whole HMI.
Fourth, communication failure
Fault phenomenon:
Communication interruption: the communication between PLC and controller, HMI, or between controller and other actuators may be interrupted, resulting in information not being transmitted, and different parts of the device cannot work together, affecting the overall operation of the device.
Communication data error: During the communication process, the transmitted data may be garbled, lost or incorrect, causing the equipment to receive wrong commands, triggering abnormal actions or shutdown.
Solution:
Check whether the communication line is damaged, whether the plug is loose or has poor contact, and for shielded cables, check whether the shield is well grounded; repair or replace the damaged communication line to ensure a firm connection.
Check the communication protocol settings of both sides of the communication to ensure that the baud rate, data bits, stop bits, check bits and other parameters are consistent; according to the operation manual of the equipment or the communication protocol standard, modify the inconsistent parameters to ensure normal communication. At the same time, exclude electromagnetic interference around the device, you can use shielding, filtering and other measures to reduce the impact of electromagnetic interference on communication.
V. Motion control card failure (if used)
Fault phenomenon:
Inaccurate motion control: the motion control card may not be able to accurately control the motor's motion trajectory, speed and position, resulting in positional deviation and speed fluctuation of the rotor in the process of entering the magnet, affecting the accuracy of entering the magnet.
Unable to control motor movement: the motion control card may not be able to output the correct motion control signal, so that the motor cannot move according to the predetermined trajectory and speed, resulting in the equipment not operating normally.
Solution:
For inaccurate motion control, use professional motion control software to check the parameter settings of the motion control card, including speed, acceleration, position and other parameters, to ensure that it meets the operating requirements of the equipment; recalibrate the motion control card and use standard test procedures and measurement tools to ensure its control accuracy.
If it is not possible to control the motor movement, check the connection line of the motion control card to ensure that its connection with the motor driver, PLC or controller is normal; check the power supply of the motion control card, and use a voltmeter to measure whether the power supply voltage is normal; if the motion control card is damaged, contact the manufacturer for repair or replacement.
Through the timely investigation and correct treatment of the above control unit faults, you can ensure that the control unit of the brushless motor motor automatic rotor into the magnet steel machine work properly, improve the stability and reliability of the equipment, to ensure that the magnet steel into the operation of the smooth running of the operation.
※ If the above ways and means still can not solve the equipment failure, please contact Xinhui Electromechanical Equipment Company Limited technical experts through the page chat tool to seek help.
