[Cause]
The weaving direction is inappropriate. The weaving direction cannot be calculated.
[Countermeasure]
To calculate the correct weaving direction, set the user coordinate system, or change the direction of the welding path. In addition, please confirm whether the weaving start command is incorrectly taught before the action command being executed (for example, the action of inserting the tool into the workpiece, etc.) along the direction of the tool Z.