If you're unfamiliar with homing, please click here to view Motor Homing
Please perform a stepper motor motion test
Ensure the stepper motor operates correctly before conducting a homing test:
Perform a stepper motor motion test to verify functionality.
Correct any motor issues before proceeding.
If the motor operates correctly, proceed with the homing test below.
Open the troubleshooting interface and select "Home Test." Refer to the troubleshooting for instructions on accessing the interface.
Perform the homing test for each axis of your device.
If homing fails, proceed to the solutions below based on your control board version.(if you don't know your control board version, please click About Control Board).
NEJE control boards with hardware versions ≥ v2.0.0 use current sensors instead of physical limit switches for end-of-run detection. The embedded microprocessor samples the stepper motor’s operating current 1,000 times per second to detect subtle changes indicating the end of the axis. This method eliminates limit switch wear, offering higher reliability and a nearly unlimited lifespan.
Below are common homing failure scenarios and solutions:
A jammed track may cause the motor to stop mid-homing. To troubleshoot:
Verify that the impact pad is present and functioning. Add a 5mm-thick EVA foam pad to the impact pad to improve cushioning. If the EVA foam pad is worn and no longer provides cushioning, replace it with a new one.
NEJE control boards with hardware versions earlier than v2.0.0 use physical limit switches for end-of-run detection. When the device reaches the end of its axis, the limit switch triggers, stopping the stepper motor. If the limit switch is damaged or obstructed, the motor may continue running, producing a clicking sound.The following diagram shows the location of limit switches for different device models.
NEJE Digital Series Limit Switch Locations
NEJE Max Series Limit Switch Locations