The axis in the X/Y/Z direction cannot return to home.
when tapping on the screen to return to home, it cannot move to the limit switch end (the Z axis cannot move upward, the X axis cannot move to the left, and the Y axis cannot move forward).
¶ Take the Z1-axis linear module limit switch problem as an example.
In the shutdown state, manually move each module to the middle position, and then connect the Z1 linear module on the main control board to the Z2 socket on the main control board; connect the Z2 linear module on the main control board to the Z1 socket on the main control board. Turn on the power of the machine, and then operate the “Settings>Maintenance>Machine Information” command on the screen. If Z1=off and Z2=on at this time, it means the main control board is damaged. If Z1=on and Z2=off at this time, please do the following troubleshooting.
Preliminary inspection: Shut down the machine, remove the Z1-axis linear module, and remove the 4 fixing screws on the top cover of the Z1-axis linear module.
2.1 Check whether the limit switch wiring in the module is loose or damaged. If there is any looseness, reseat the wiring.
2.2 If the wiring is not damaged, check the ports and pins on the limit switch board and circuit adapter board for obvious damage.
2.3 Please check whether there is any foreign object blocking the limit switch. If there is foreign matter, please clean it up.
If the wiring and the limit switch board and circuit adapter board are not damaged, please follow the steps below for further inspection.
3.1 Please use a multimeter to measure whether the limit switch wiring is continuity.
3.2 Please use a multimeter to measure whether the wiring of the linear module is continuity.
3.3 Please use tweezers to short-circuit these two pins, and then check whether the limit switch status of the corresponding linear module in the main control changes. If you don't have tweezers, you can simply rotate the device and connect the pins together. If there is a change, there is a problem with the limit switch board.
3.3.1 Remove the Steel Strip fixing screws, being careful not to get cut.
3.3.2 Remove the fixing screw at the limit switch.
3.3.3 Short these two pins.
If the problem is still not resolved, please contact technical support personnel for further troubleshooting, and inform the technical support personnel of your detailed troubleshooting steps and results.
Set the multimeter to the buzzer setting, and place two electric pens on the corresponding pins at both ends of the wiring. If the multimeter beeps, the wiring is intact. If the multimeter does not beep when measuring a certain pair of pins, the wiring is damaged.
