What are the common electrical failures and solutions for brushless motor motor automatic press-fit end-capping machine?
Brushless motor motor automatic press-fitting end-capping machine common electrical faults and solutions are as follows:
1, power failure
l Failure phenomenon: the equipment can not start, the indicator light does not light, the motor does not run.
l Failure causes
The power supply is interrupted by loose power plug and broken power cord.
The power switch is damaged and cannot conduct the circuit normally.
The fuse is blown, which may be caused by short circuit or overload.
Unstable power supply voltage, too high or too low will affect the normal operation of the equipment.
l Solution
Check the power plug and power cord to ensure that the plug is tightly inserted, and repair or replace the broken power cord.
Replace the damaged power switch.
Find out the cause of the blown fuse, and replace the fuse with the same specification after eliminating the short circuit or overload fault.
Use a voltage regulator to stabilize the power supply voltage so that it is within the range allowed by the equipment.
2、Motor failure
l Failure phenomenon
The motor does not rotate and may be accompanied by abnormal noise.
Motor speed is unstable, sometimes fast and sometimes slow.
The motor is overheated and even smokes.
l Cause
The motor winding is short-circuited or disconnected, which may be caused by aging of insulation, moisture, etc.
Damaged motor bearings, increasing the motor's running resistance.
Motor driver failure, such as abnormal control signal, damaged power module, etc.
The motor load is too large, exceeding the rated power of the motor.
l Solution
Use a multimeter to test the resistance value of the motor winding to determine whether it is short-circuited or disconnected. If there is any problem, repair or replace the motor winding.
Replace the damaged motor bearings and lubricate and maintain the bearings regularly.
Check whether the parameter settings of the motor driver are correct, and if a fault code is displayed, troubleshoot and repair according to the instructions. If necessary, replace the damaged drive power module.
Check the mechanical parts of the equipment to eliminate the causes of excessive load, such as cleaning the drive components, adjusting the pressure of the press-fit.
3、Sensor failure
l Fault phenomenon
Inaccurate positioning of the equipment, end cap press fitting position deviation.
The equipment can not start or stop normally, may be the sensor signal abnormality.
The sensor indicator light does not light up or is always on, showing abnormal status.
l Cause
The sensor installation position is loose or offset, resulting in inaccurate detection position.
The sensor probe is covered by dust, oil and other pollutants, affecting the signal transmission and reception.
The sensor itself is damaged, such as internal circuit failure, component aging.
l Solution
Reinstall the sensor to ensure its position is accurate and tighten it.
Clean the sensor probe, use a clean soft cloth to wipe, avoid using sharp objects to damage the probe.
Replace the damaged sensor, choose the same product with the original sensor model for replacement.
4、Controller failure
l Failure phenomenon
The logic of equipment operation is chaotic, and the operation is not performed according to the preset program.
Controller display no display or display abnormalities, such as garbled code, screen, etc..
The controller can not receive or send control signals, resulting in equipment can not work properly.
l Failure causes
Controller program error, may be due to programming errors, data loss and other reasons.
Hardware failure of the controller, such as short circuit of the circuit board, damaged components and so on.
Failure of the communication line between the controller and other electrical components, resulting in interruption of signal transmission.
l Solution
Redownload or modify the controller program to ensure the correctness of the program. Before modifying the program, backup the original program to prevent data loss.
Check the hardware circuit of the controller to find short-circuited or damaged components and repair or replace them.
Check the connection of the communication lines to ensure that the lines are not broken or loose. If necessary, replace the damaged communication lines.
5. Relay failure
l Failure phenomenon
Some functions of the equipment cannot be realized normally, such as the solenoid valve does not operate, the motor cannot be started, etc., it may be that the relay contacts are not closed.
Frequent action or abnormal sound of the relay, may be the contact sticking or poor contact.
l Failure causes
The relay coil is damaged and cannot generate enough magnetic force to close the contacts.
Relay contacts are worn and oxidized after long-term use, resulting in poor contact or sticking.
Poor working environment of the relay, such as high temperature, high humidity, etc., affecting its normal performance.
l Solution
Use a multimeter to test the resistance value of the relay coil to determine whether the coil is damaged. If there is any problem, replace the relay coil or the whole relay.
Clean the relay contacts to remove oxidized layer and dirt. If the contacts are badly worn, replace the relay.
Improve the working environment of the relay, e.g., add heat sinks, moisture-proof measures, etc.
※ If the above ways and means still can not solve the fault of the equipment, please contact the technical specialists of Xinhui Electromechanical Equipment Co.
