Common problems

HomeCommon problems
  • How to handle equipment alarms


    Firstly, observe the alarm prompts that appear on the built-in screen of the equipment. After pausing the equipment operation, follow the prompts to find the corresponding location for troubleshooting.


  • How to Choose a Suitable Grinding and Polishing Workstation for a Product

    Quickly locate the grinding and polishing workstation based on the applicable product's die casting machine tonnage (for example, for a 400 ton die casting machine product, LRMC-400T and other higher tonnage equipment can be selected), perform secondary matching based on the applicable product size parameters, and finally select the appropriate model according to the self generated needs and product process requirements to find a suitable grinding and polishing workstation.


  • How to deal with the alarm of robot backup battery shortage during use

    When the battery level of the robot's backup battery is low, a prompt will appear on the robot's teaching pendant. Normal use is not affected at this time, but after the equipment is used, the robot should be kept powered on and our company should be contacted to purchase a dedicated battery in a timely manner. After replacing the robot's backup battery, the robot can be powered off.

  • How to replace the sanding belt in the sanding belt machine

    After stopping the equipment operation, locate the sand belt tightening control valve on the side of the sand belt machine. After triggering, the sand belt will relax. At this time, replace the corresponding sand belt (note that the direction marked on the sand belt is consistent with the rotation direction of the sand belt machine). After completion, trigger the tightening control valve again, and the position of the sand belt will be automatically corrected during the operation of the sand belt machine.

  • How to troubleshoot safety door alarms and alarms

    1. Check the quality of the left and right safety door travel switch contacts. 

    2. Check that the door structure is not twisted, causing the travel trajectory to fail to reach contact closure. 

    3. Check if the status lights of PLC input points X1 and X2 are normal. 

    4. During manual and teaching, the safety door can be shielded in the function debugging screen on the touch screen. If the robot's rotation button is activated for regeneration teaching, the safety door must be closed.


  • How to troubleshoot the low pressure alarm

    1. Check if the company's air pressure is normal. 

    2. Check if the pressure gauge is normal. 

    3. Check if the status light of PLC input point X0 is normal.

  • How to troubleshoot the over travel alarm of the tightening wheel

    1. Check if the belt of the sanding machine is broken.

    2. Check if the status light of the magnetic switch is normal. 

    3. Check if the status lights of PLC input points X11 and X12 are normal.

  • How to troubleshoot the frequency converter alarm of the sanding belt machine

    1. Frequency converter fault code OL, check if the motor is stuck, if the motor rotates when the frequency converter starts to output, check the wiring of the output motor, if screws are loose, and if the three-phase impedance of the motor is balanced.

    2. Frequency converter fault code OCD, set deceleration time ratio to increase. 

    3. Check if the multifunctional contact output terminals are functioning properly.


  • How to troubleshoot the alarm of the spindle frequency converter

    1. Frequency converter fault code OL, check if the motor is stuck, if the motor rotates when the frequency converter starts to output, check the wiring of the output motor, if screws are loose, and if the three-phase impedance of the motor is balanced. 

    2. Frequency converter fault code OCD, set deceleration time ratio to increase. 

    3. Check if the multifunctional contact output terminals are functioning properly.