What should you do if the control system of the CO2 laser cutting and engraving series cannot be reset to its original point?

If your control system is one of the RDC6442G, RDC6445G, RDC6585G, RDC6685U, RDC6332NM, RDC6612U, or RDC8445S models from the CO2 laser cutting and engraving series and you encounter an issue where it cannot be reset to the original point, you can follow the troubleshooting steps below.

1. Check whether the machine working area and step settings are correct
First, verify that the working area parameters set in the control system match the actual mechanical travel of the machine. If the working area is set too small or too large, the controller may misjudge the axis position during the homing process, resulting in failure to return to the origin. In addition, carefully check the step (pulse equivalent) settings for each axis. Incorrect step values will cause discrepancies between the actual movement distance and the system’s calculated distance, which may lead to incorrect homing direction, abnormal motion, or premature stopping. It is recommended to verify and correct these parameters according to the factory settings or the actual motor and lead screw specifications.

2. Check whether the limit switches of each axis are functioning properly
Limit switches are key feedback components during the homing process. Check whether the switches are damaged, loose, or blocked by debris, and ensure that the limit signals can be correctly detected by the controller. You can manually trigger the limit switches and observe the limit status feedback in the control system to confirm proper operation. Additionally, verify that the limit type (normally open or normally closed) matches the system parameter settings, as incorrect logic configuration may prevent the controller from correctly identifying the home position.

3. Check the manufacturer parameters and confirm whether other axes are enabled for homing
Enter the manufacturer parameter settings of the control system and review all homing-related options. Check whether unused or non-existent axes have been mistakenly enabled for homing, such as a rotary axis or lifting axis that is not actually installed on the machine. If the system attempts to home an axis that is not present, the homing process will be interrupted. Configure the system to enable homing only for the axes that are physically installed and disable homing for all unused axes to ensure a smooth and successful homing process.