What are the common control unit faults and solutions for DC motor motor automatic worm gear assembly machine?
The following are common control unit failures and solutions for DC motor motor automatic worm gear assembly machine:
1, controller hardware failure
Failure phenomenon: the controller can not start normally, crash, no control signal output or output abnormalities.
Solution:
Check the power supply: first confirm whether the power supply of the controller is normal, check whether the power supply voltage is within the rated range, whether the fuse is blown and so on. If there is any problem, replace the fuse or repair the power supply circuit in time.
Check the hardware connection: check whether the connection lines between the controller and other devices such as motor, sensor, driver, etc. are loose, broken or have poor contact. Re-plug and unplug the connection plug to ensure a firm connection; for broken lines, replace them in time.
Check the internal components of the controller: If the above methods can not solve the problem, it may be the controller internal circuit boards, chips, capacitors, resistors and other components are damaged. Professionals need to use professional tools to detect and repair, such as detection of component damage, need to replace the corresponding components or the entire controller.
2, controller software failure
Failure phenomenon: program running errors, system vulnerabilities, control logic confusion, can not communicate with other devices normally.
Solution:
Software update and repair: check whether the software used by the controller has a new version, if so, update in a timely manner. For known software vulnerabilities or faults, contact the equipment manufacturer to obtain the appropriate patch program to repair.
Parameter reset: Confirm whether the various parameters of the controller are set correctly, such as motor control parameters, sensor calibration parameters, communication protocol parameters, etc. According to the instruction manual of the device and the actual operation situation, readjust and reset the parameters.
Restore factory settings: If the software failure is more serious, try to restore the controller to the factory settings, and then re-parameterization and debugging. However, before restoring the factory settings, you need to backup important parameters and data.
3, drive failure
Failure phenomenon: the motor can not start, unstable speed, insufficient torque, overheating alarm.
Solution:
Check the power supply and connection of the drive: Make sure the power supply of the drive is normal, check whether the power supply voltage and current meet the requirements. At the same time, check whether the connection line between the drive and the motor and controller is good, and if it is loose or broken, repair or replace it in time.
Check the parameter settings of the drive: check whether the parameter settings of the drive, such as the rated parameters of the motor, the control mode, acceleration and deceleration time, etc., are in line with the actual motor and operational requirements. Adjust and optimize as needed.
Drive overload protection processing: If the drive appears overheating alarm or overload protection, first check whether the motor load is too large, whether there is mechanical stalling and other problems. After reducing the load and eliminating mechanical problems, try to reset the overload protection function of the drive.
Drive fault detection and repair: If the drive internal power modules, control circuits and other faults, generally require professional testing and repair. Professional testing equipment, such as oscilloscopes, multimeters, etc., can be used to detect the input and output signals, voltage and current of the drive to determine the point of failure and repair or replacement.
4, communication failure
Failure phenomenon: the controller and other equipment can not be normal communication between the communication interruption, data transmission errors, incompatible communication protocols and other issues.
Solution:
Check the communication lines and interfaces: check whether the communication lines are connected correctly and firmly, with or without damage, short circuit and so on. Check whether the communication interface is oxidized, corroded, loose, etc. If so, clean, tighten or replace the interface.
Check the communication protocol and parameter settings: Confirm whether the communication protocol between the controller and other devices is the same, such as baud rate, data bits, stop bits, check bits and other parameter settings are the same. If there is any difference, make adjustments to make them match.
Interference investigation and processing: If the communication is subject to electromagnetic interference, you can take measures to reduce the interference by shielding the communication lines, staying away from the source of interference, and increasing the filter, etc. At the same time, check whether the equipment is grounded. At the same time, check whether the grounding of the equipment is good to ensure that the grounding system can effectively shield the interference.
Communication Module Troubleshooting: If the communication module fails, it may be necessary to replace the communication module or repair it. After replacing the communication module, it is necessary to re-configure and debug.
5, sensor feedback failure
Failure phenomenon: sensor signals can not be normal feedback to the controller, resulting in the controller can not accurately obtain the motor or assembly machine running status, such as position, speed, pressure and other sensor data abnormalities.
Solution:
Sensor inspection and cleaning: refer to the previously mentioned sensor failure solutions, check whether the sensor itself is working properly, clean the sensor's sensing surface and connection lines to ensure that the sensor can accurately detect and transmit signals 3.
Signal transmission check: check whether the signal transmission line between the sensor and the controller is normal, and whether there are any problems such as breaks, shorts and interference. You can use a multimeter and other tools to test the line, if there is a problem, repair or replace the line in time.
Controller reception processing troubleshooting: If the sensor signal transmission is normal, but the controller can not correctly receive or process the sensor signal, may be the controller's signal receiving circuit or software processing program failure. Need for further testing and maintenance of the controller, check the signal receiving chip, interface circuit and other hardware is damaged, as well as the software signal processing algorithm is correct.
※ If the above ways and means still can not solve the equipment failure, please contact Xinhui Electromechanical Equipment Co., Ltd. through the page chat tool to seek help.
