If the wire is broken, do not stop the machine. First, check if the brake block in circle 1 can be hit when the wire is broken. You can apply easily discoloring pigments (such as chalk, red lead, etc.) to the brake blocks and the positions where the upper and lower ingot parking rods are hit to observe whether there is discoloration to determine.

If it is turned on but does not stop, it indicates that the brake switch is not working properly. First, loosen the four screws, remove the brake switch head, press down the sensing block by hand, and observe whether the human-machine interface display screen shows a broken wire.
If there is a display of broken wire, it indicates that the screw on the sensing block is loose and the total length of the sensing block is not enough. Rotate the screw counterclockwise (indicated by the arrow in Figure 2) to lengthen it.

Adjust and install it back, pull the brake block multiple times by hand to see if it can work properly. If it keeps showing broken wire and cannot be reset, it is too long. Conversely, reduce the total length. After repeated experiments without any problems, remove it again, apply 502 or other glue to the screw pointed by the arrow to fix it, and then reinstall it.
If no disconnection is displayed, it indicates a circuit problem. Please contact our after-sales service department.