How to unlock limit switch with candle?

How to unlock when the limit switch is triggered

When the limit switch is triggered, the axis cannot move. Here is how to unlock and set zero points so that it will not go out of the active working area.


First, click reset button (shown in below picture as 1), and then the status will change to “alarm; then click unlock button (shown in below picture as 2);

then you can control the axis to move away from the limit switch.

We suggest that you could repeat the above steps twice to make sure it totally moves away from the limit switch.

Set zero point:

When the z-axis moves to the zero point, you can reset to zero by clicking these two buttons. Then it wont run out of the working area and trigger the limit switch again.