What are the common control unit failures and solutions for brushless motor motor automatic skimmer?
Brushless motor motor automatic skimmer common control unit faults and solutions are as follows:
1、Power failure
Failure phenomenon: the control unit does not respond, the indicator light does not light, the reclaimer can not start 2.
Cause analysis: loose power plug, power cord damage, power switch failure, power module burnt, abnormal input voltage.
Solution: Check whether the power plug is inserted tightly, whether the power cord is damaged or broken, and replace it if there is any problem; check whether the power switch is working normally, and replace the switch if it is faulty; use a multimeter to detect the input and output voltages of power supply module, and replace the power supply module if the voltage is abnormal or the module shows signs of burnt out; make sure that the input voltage meets the requirements of the control unit, and check the power supply lines and related equipment if the voltage is too low or too high. If the voltage is too low or too high, check the power supply line and related equipment.
2、Controller failure
Failure phenomenon: the motor does not rotate or abnormal speed, the collector is not stable, there is a stuttering, shaking phenomenon 127.
Cause analysis: controller internal circuit failure, such as capacitors, resistors, chips and other components are damaged; control signal transmission line failure, such as line breaks, short circuit, poor contact; controller parameter setting errors.
Solution: use professional tools such as oscilloscopes, multimeters, etc. to detect the internal circuit components of the controller, find out the damaged components and replace them; check the control signal transmission lines, repair the breaks, shorts, re-insertion and removal of the interface to ensure good contact; re-check and set the controller parameters, such as speed, acceleration, braking time, etc., to ensure that the parameters and the operating requirements of the reclaimer to match.
3、Sensor failure
Failure phenomenon: the collector can not accurately detect the position of the material, resulting in the collection of materials in a timely manner or excessive collection of materials, motor frequent start and stop or not according to the set program operation 2.
Reason analysis: sensor damage, such as Hall sensors, photoelectric sensors, etc.; sensor sensing surface with dust, oil and other pollutants, affecting signal transmission; sensor installation position offset, resulting in inaccurate detection.
Solution: the use of professional equipment to detect the performance of the sensor, such as whether the output signal is normal, such as damage to the timely replacement of the sensor; clean the sensor sensing surface to ensure that the surface is clean and free of impurities; readjust the sensor's mounting position, so that it can accurately detect the location of the material.
4, communication failure
Failure phenomenon: the control unit and the host computer or other equipment can not be normal communication between the receiver can not receive commands or upload operating data.
Cause analysis: loose or damaged communication interface; communication protocol mismatch; communication line interference or damage; software program failure.
Solution: Check whether the communication interface is plugged tightly, whether there are signs of damage, if there are any problems, repair or replace; ensure that the communication protocol between the control unit and other equipment is consistent, such as the baud rate, data bits, stop bits and other parameters are set correctly; check whether the communication line is broken, interference sources, shielding, grounding and other measures to eliminate interference, and if there is damage to the line will be replaced; check whether there are any errors or loopholes in the software program, repair or upgrade it. Repair or upgrade.
5、Protection circuit failure
Failure phenomenon: frequent over-current, over-voltage, overheating protection, the feeder stops running 2.
Cause analysis: protection circuit components are damaged, such as over-current protection relay, over-voltage protection chip, temperature sensor, etc.; motor or other load failure, resulting in abnormal current, voltage; poor heat dissipation, resulting in high temperature of the control unit.
Solution: Test the performance of the protection circuit components, replace the damaged components; check the motor and other load equipment, troubleshooting, such as motor short-circuit, overload, etc.; check whether the cooling fan is working properly, whether the heat sink is clogged, clean up the heat sink to ensure that the heat dissipation is good.
※ If the above ways and means still can not solve the equipment failure, please contact Xinhui Electromechanical Equipment Co., Ltd. technical specialists through the page chat tool to seek help.
