Motor manual three-in-one servo press what are the common control unit failure and solutions?
Motor manual three-in-one servo press control unit failure will affect the normal operation of the equipment, the following for you to detail the common failures and their solutions:
1, the controller is dead or no response
l Fault performance
Controller screen black screen, display error or no response to the operation, the device can not start or execute instructions.
l Possible causes
Hardware overheating: the controller has been working for a long time, poor heat dissipation, the internal temperature is too high leading to a decline in the performance of electronic components.
Power supply problem: unstable power supply voltage, sudden power failure or power module failure, resulting in abnormal power supply to the controller.
Software failure: errors in the control program, program crash or virus infection.
Hardware damage: the controller's internal motherboard, chip and other hardware damage.
l Solution
Improve heat dissipation: Check whether the cooling fan of the controller operates normally, clean up the dust in the cooling holes and ensure good ventilation. If necessary, increase the heat dissipation equipment.
Check the power supply: Use a multimeter to test the power supply voltage to ensure that it is within the voltage range specified by the controller. If the power module is faulty, replace it promptly.
Reboot and reset: Try to reboot the controller to see if it can return to normal. If the problem persists, the controller can be reset, but be careful to back up important data in advance.
Repair or replace the hardware: If you suspect that the hardware is damaged, you need to contact a professional technician to test and repair, if necessary, replace the damaged hardware.
2、Loss or abnormality of control parameters
l Failure performance
Pressure, displacement, speed and other control parameters of the equipment can not be saved, or the parameter display does not match the actual settings.
l Possible reasons
Battery failure: The battery used to save parameters inside the controller is exhausted, resulting in the loss of parameters.
Failure of memory chip: the chip for storing parameters is damaged and cannot store and read data normally.
Program error: the control program has errors in the process of parameter saving and reading.
l Solution
Replace the battery: Find the battery inside the controller, replace it with a new one according to the instruction manual, and reset the parameters.
Check the memory chip: Ask a professional to check whether the memory chip is damaged, if so, replace it.
Repair program: Contact the equipment manufacturer or professional technicians to repair or upgrade the control program.
3、Communication fault
l Failure performance
There is no normal communication between the controller and the servo drive, sensors and other devices, resulting in data transmission errors or interruptions.
l Possible causes
Communication line problems: communication cable damage, loose interface or poor contact, affecting signal transmission.
Communication protocol mismatch: the communication protocol used by the controller and other devices is inconsistent, and normal communication cannot be realized.
Device address conflict: multiple devices use the same communication address, resulting in communication confusion.
l Solution
Check the communication line: carefully check whether the communication cable is damaged or broken, and re-insert and pull out the interface to make sure the connection is firm. If the cable is damaged, replace it in time.
Match the communication protocol: Confirm that the communication protocol settings of the controller and other devices are consistent, and adjust them if necessary.
Solve address conflicts: the communication address assigned to each device to avoid address conflicts.
4. Overload protection triggers frequently
l Failure performance
During the normal operation of the equipment, the overload protection device is frequently activated, resulting in equipment shutdown.
l Possible causes
The load is too large: the actual working load exceeds the rated load set by the controller.
Improperly set protection parameters: the threshold value of overload protection is set too low, and it is easy to be triggered by mistake.
Driver failure: servo driver failure, resulting in abnormal motor output, triggering overload protection.
l Solution
Check the load situation: Evaluate the actual working load and, if necessary, adjust the working parameters or replace the appropriate mold to reduce the load.
Adjust the protection parameters: According to the actual situation of the equipment, appropriately increase the threshold value of overload protection, but be careful not to exceed the range of the equipment.
Inspection and repair of the drive: test and repair the servo drive, troubleshooting.
5、Logic control error
l Fault performance
The action sequence of the equipment does not conform to the preset logic, such as the press-fit action in advance or lagging, unable to complete the complete work cycle.
l Possible causes
Program logic error: there are problems in the logical design of the control program, leading to confusion in the action of the equipment.
Sensor failure: the sensor used to detect the state of the equipment is faulty, providing wrong signals, affecting the logic control.
Abnormal input/output signals: The input/output ports of the controller are faulty, resulting in incorrect signal transmission.
l Solution
Check and modify the program: Double-check the logic of the control program, find out the error and modify it.
Inspection and repair of sensors: Test and repair the relevant sensors to ensure their normal operation.
Inspection of input/output ports: Use professional tools to inspect the input/output ports of the controller and repair or replace the faulty ports.
※ If you still can't solve the problem by the above ways and means, please contact the technical specialists of Xinhui Mechanical & Electrical Equipment Co.
