What are the common control unit failures and solutions for motor motor automatic rotor test vision all-in-one machine?
The control unit of the motor motor automatic rotor test vision integrated machine is the core brain of the whole equipment, responsible for coordinating and controlling the operation of various components. The following are common control unit failures and solutions:
First, the hardware failure
1, circuit board failure
Failure phenomenon: the device can not start normally, the screen does not show, or run the process of sudden death, restart; control unit of the indicator display abnormalities, such as should be lit indicator does not light up, or indicator flashing frequency is abnormal.
Reason analysis: poor soldering of components on the circuit board, after a long period of time after the use of soldering, resulting in unstable signal transmission; circuit board by moisture, dust and other environmental factors, resulting in short-circuiting or damage to the components; circuit board capacitors, resistors and other components aging, performance degradation.
Solution: carefully check the solder joints on the circuit board, use a magnifying glass to see if there is a false weld, desoldering, such as re-welding; clean the circuit board, use anhydrous alcohol to wipe, remove dust and stains, and do a good job of moisture-proofing treatment; the use of professional testing instruments, such as multimeters, oscilloscopes, etc., to detect the components of the circuit board, replace the aging or damaged components.
2, interface failure
Failure phenomenon: the control unit and external equipment (such as motors, sensors, monitors, etc.) can not communicate properly between the data transmission interruption or error; connecting external equipment interface is loose, the equipment in the process of running the connection is not stable.
Cause analysis: the interface is plugged in and out for a long time, resulting in interface pin bending and damage; the metal contacts of the interface are oxidized, affecting the signal transmission; the fixing screws of the interface are loose, resulting in an unstable connection between the interface and the circuit board.
Solution: Check whether the interface pins are bent, damaged, such as the use of tweezers and other tools to repair or replace the interface; use an eraser to wipe the interface metal contacts, remove the oxidized layer; tighten the interface fixing screws to ensure that the interface is firmly connected to the circuit board.
3、Power module failure
Failure phenomenon: the control unit can not be normal power supply, the device can not start; power indicator does not light up, or display voltage abnormalities.
Cause analysis: the input voltage of the power supply module is unstable, beyond its normal operating range; power module internal components are damaged, such as capacitor explosion, power chip damage, etc.; poor heat dissipation of the power module, resulting in high temperature, affecting its performance.
Solution: Use a voltmeter to detect the input voltage of the power supply module to ensure that it is within the normal operating range, such as voltage instability can be stabilized using a voltage regulator; open the power supply module to check whether the internal components have signs of damage, if any, then replace the damaged components; clean up the power supply module's cooling fan and heat sink to ensure that the heat dissipation is good.
Second, software failure
1、Program failure
Failure phenomenon: Logical errors occur during the operation of the equipment, such as chaotic test process, data processing errors; control unit of the operating interface appears to be stuck, no response and so on.
Reason analysis: there are loopholes in the writing of the control program, resulting in unstable program operation; the program is interfered with during operation, such as electromagnetic interference, power supply fluctuations, etc., resulting in program errors; the program version is too low, there are a number of known problems have not been repaired.
Solution: carry out all the checking and debugging of the control program to find out the loopholes in the program and repair them; carry out electromagnetic shielding and power supply filtering processing on the equipment to reduce the impact of external interference on the program; update the control program to a new version in time to repair the known problems.
2、Error in parameter setting
Failure phenomenon: the operating parameters of the equipment do not meet the actual needs, such as test speed is too fast or too slow, inaccurate test accuracy, etc.; the equipment can not run in accordance with the preset parameters, anomalies.
Cause analysis: the operator is not familiar with the parameter settings of the equipment, mistakenly set the wrong parameters; parameter setting file is damaged, resulting in parameter loss or error.
Solution: Train the operators to be familiar with the parameter setting method of the equipment and the meaning of each parameter; back up the parameter setting file and check and update it regularly, if the parameter setting file is damaged, the backup file can be used for recovery.
3、Data transmission failure
Failure phenomenon: delay, loss or error in data transmission between the control unit and other equipment, resulting in inaccurate test data; the device can not obtain feedback information from external equipment in a timely manner, affecting the timeliness and accuracy of control.
Cause analysis: incompatible communication protocols, resulting in inconsistent data transmission format; communication line faults, such as line short circuit, circuit breakers, etc.; data transmission process is interfered with, such as electromagnetic interference, signal attenuation, etc..
Solution: Check the communication protocol between the control unit and other equipment to ensure that the protocol is compatible; use professional testing instruments to check the communication line, repair short circuits, circuit breakers and other faults; shielding and anti-interference processing of the communication line to reduce the impact of external interference on data transmission.
※ If you still can't solve the equipment failure by the above ways and means, please contact the technical specialist of Xinhui Electromechanical Equipment Co.
