What are the common electrical failures and solutions for brushless motor motor automatic rotor dynamic balancing machine?
Brushless motor motor automatic rotor dynamic balancing machine in the operation process may appear a variety of electrical faults, the following for you to introduce the details of common faults and corresponding solutions:
1、Power failure
l Failure phenomenon
The equipment cannot be energized and the power indicator light does not light up.
The equipment suddenly loses power after being turned on.
l Failure causes
The power plug is loose, damaged or in poor contact.
The power switch is faulty.
Fuse blown.
The power supply line is broken or short-circuited.
l Solution
Check the power plug to make sure it is firmly inserted into the socket, and replace it if damaged.
Check the power switch, if the switch is damaged, replace it with a new one.
Check the fuse, if it is blown, you should first determine the cause of the blown fuse (e.g. whether there is a short-circuit), and replace it with a fuse of the same specification after eliminating the problem.
Carefully check the power line, use a multimeter to detect whether there is a broken or short circuit, repair or replace the damaged line.
2、Sensor failure
l Failure phenomenon
The dynamic balance measurement data is inaccurate or fluctuates greatly.
The device displays a sensor failure alarm message.
l Failure cause
The sensor installation position is loose or offset, resulting in inaccurate measurement.
The sensor probe is polluted by dust, oil, etc., affecting signal transmission.
The sensor itself is damaged.
The sensor connection line is loose, broken or short-circuited.
l Solution
Check the installation position of the sensor to ensure that it is firmly and correctly installed, and adjust and re-fix if necessary.
Clean the sensor probe, wipe it with a clean soft cloth to remove dust and oil.
If you suspect that the sensor is damaged, use professional testing equipment to test the sensor, confirm the damage and replace the sensor with the same type in a timely manner.
Check the sensor connection line to ensure that the connection is firm, if there is a broken or short circuit, repair or replace the line.
3、Drive motor failure
l Failure phenomenon
The drive motor can not start.
Abnormal noise, vibration or heat when the motor is running.
Motor speed is not stable.
l Cause
Abnormal power supply to the motor, such as insufficient voltage or lack of phase.
The motor winding is short-circuited, disconnected or grounded.
The motor controller is faulty and cannot output the control signal normally.
Motor bearing is damaged.
l Solution
Check the power supply of the motor, use a voltmeter to measure whether the power supply voltage is normal or not, make sure that the three-phase power supply is balanced, and exclude the power supply problem.
Use insulation resistance meter and multimeter to detect the insulation resistance and resistance value of the motor winding, to determine whether there is a short circuit, broken circuit or ground fault, if there is any problem, you need to repair the motor winding or replace the motor.
Check the motor controller to see if there is any fault code display, carry out troubleshooting and repair according to the manual, and replace the controller if necessary.
Check the motor bearings, if damaged, replace the bearings in time.
4、Control system failure
l Fault phenomenon
No display or abnormal display on the operation panel of the equipment.
Cannot set parameters or execute operation instructions normally.
The control system crashes or restarts frequently.
l Failure causes
The control motherboard is damaged.
Software program error or loss.
The connection line between the operation panel and the control motherboard is faulty.
The control system is subject to electromagnetic interference.
l Solution
Check the electronic components on the control motherboard for signs of damage, burning, etc. If damaged, replace the corresponding components or the entire control motherboard.
Try to reinstall or update the software program of the control system to restore the normal parameter settings.
Check the connection lines between the operation panel and the control motherboard to ensure a firm connection, and repair or replace the damaged lines.
Take shielding, grounding and other measures to reduce the impact of electromagnetic interference on the control system, such as installing shielding around the equipment, reliable grounding of the equipment.
5、Display system failure
l Failure phenomenon
The display screen is black, blurred or flickering.
The display content is blurred or partially missing.
l Failure causes
Abnormal power supply to the display.
The display itself is damaged.
The display driver board is faulty.
The wires connecting the display are loose or damaged.
Solution
Check the power supply of the display to make sure the voltage is stable, repair or replace the power line.
If the display is damaged, replace the display with the same model.
Check the display driver board, if it is faulty, repair or replace the driver board.
Check the wires connecting the display to ensure that the connection is firm, if damaged, replace the wires.
※ If you still can't solve the problem by the above ways and means, please contact the technical specialist of Xinhui Mechanical and Electrical Equipment Co.
