How To Manage Soft And Negative Limit Alarms in Laser Cutting Machines?

The methods for handling soft limit and negative limit alarms of laser cutting machines mainly include the following:

The device has reached the security boundary set by the software.

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1. Power off and restart:

For the limit alarms of the Z axis and the fourth axis, the general method is to disconnect the power for 5-10 minutes and then reconnect, and then ensure that the machine is zeroed. If it is a limit alarm of the fourth axis, perform the corresponding addition and subtraction operations according to whether it is a positive limit or a negative limit until the alarm is eliminated and the focus is zeroed.

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2. Check and adjust the limit switch:

Make sure that the limit switch is not damaged or blocked, and clean or replace it if necessary. If the limit switch is damaged, it may cause false alarms and require professional technicians to check and repair it.

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3. Check and adjust the mechanical position:

Make sure that the mechanical parts are not stuck or moving smoothly, and all mechanical parts are in the correct position. If the laser head collides with other parts of the machine, it is necessary to check whether the movement path of the laser head is unobstructed and confirm whether the relevant settings are correctly configured on the control panel.

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4. Software setting check:

Check whether the limit parameters in the software settings are correct and adjust them if necessary. Incorrect software parameter settings may also cause limit alarms.

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5. Servo system check‌:

If it is a limit alarm related to the servo system, you need to check the status and parameter settings of the servo drive, and find a specific solution based on the code displayed by the servo system if necessary.