What are the common electrical faults and solutions for brushless motor motor automatic no load tester?
The common electrical faults and solutions of brushless motor motor automatic no-load tester are as follows:
1、Power failure
Failure phenomenon
The tester is completely unresponsive, the power indicator does not light up and the display does not show.
The power supply voltage is unstable, resulting in large fluctuations in test data.
Cause analysis
The power plug is loose, the power cord is damaged or the power socket is faulty.
The power switch is damaged, the fuse is blown or the internal circuit of the power supply is faulty.
Grid voltage fluctuation or power regulator failure.
Solution
Check whether the power plug is tightly inserted, replace the power cord or check whether the power outlet is working properly.
Replace the power switch, fuse, or overhaul the internal circuit of the power supply, and replace the power module if necessary.
Install a voltage regulator to stabilize the grid voltage, check the working status of the power regulator, and repair or replace it in time if it is faulty.
2、Motor drive failure
Failure phenomenon
The motor can not start, the test machine prompts the motor drive failure.
The motor jerks and makes a lot of noise when running, and the rotation speed is unstable.
Cause analysis
The connection line between motor driver and motor is loose, broken or short-circuited.
The motor driver parameters are set incorrectly, such as the number of motor poles, rated speed and other parameters are set incorrectly.
The motor drive itself is faulty, such as power module damage, control circuit failure.
Solution
Check the connection lines to make sure they are firmly connected, and repair or replace damaged lines.
Reset the motor driver parameters to match the actual parameters of the motor.
Test the motor drive, replace the damaged power module or repair the control circuit, and replace the motor drive if necessary.
3、Sensor failure
Failure phenomenon
Inaccurate test data, such as speed, current, voltage and other parameters displayed abnormally.
The tester suddenly stops during operation, prompting sensor failure.
Cause analysis
The sensor is improperly installed, resulting in inaccurate measurement.
The sensor connection line is loose, poor contact or damage.
The sensor itself is faulty, such as aging, damage, etc.
Solution
Adjust the installation position of the sensor to ensure that it is securely installed and the measurement is accurate.
Check the connection line, repair or replace the damaged part to ensure a good connection.
Replace the faulty sensor, choose a reliable quality and stable performance of the sensor.
4、Control circuit failure
Failure phenomenon
No response from the operation panel of the tester, unable to set parameters and start the test.
Tester running logic confusion, such as not according to the preset process for testing.
Cause analysis
Damage to relays, contactors and other components in the control circuit.
Failure of electronic components on the control circuit board, such as damaged capacitors and resistors, chip failure, etc.
Control program error or loss.
Solution
Replace damaged relays, contactors and other components.
Test the control circuit board, replace the damaged electronic components, repair or replace the control circuit board.
Redownload or update the control program, debug the program to ensure that its operation logic is correct.
5、Communication failure
Failure phenomenon
Data transmission between the tester and the upper computer is not possible, or there is an error or loss during data transmission.
The communication between the tester and other equipment is interrupted, resulting in the whole test system not operating normally.
Cause Analysis
Loose or damaged communication interface or communication line failure.
The communication protocol is set incorrectly and the communication parameters of both sides do not match.
Communication module failure.
Solution
Check the communication interface and line to make sure the connection is firm, and repair or replace the damaged part.
Reset the communication protocol and parameters to make them consistent between the tester and other devices.
Check the communication module and replace the defective one.
※ If the above ways and means still can't solve the equipment failure, please contact the technical specialist of Xinhui Electromechanical Equipment Co., Ltd. through the page chat tool for help.
