[Cause]
The gun axis position in a spot welding instruction or pressure application motion instruction is near the pressure-side stroke limit. The distance from the gun axis position to the pressure-side stroke limit is $SGSYSCFG.$CLSLMWRNTOL or less.
[Countermeasure]
Check the gun mastering position and the pressure-side stroke. If these values are correct, replace the electrode tips with new ones or reduce the value of $SGSYSCFG.$CLSLMWRNTOL so that the distance from the gun axis position to the pressure-side stroke limit is within the allowable range. Setting $SGSYSCFG.$CLSLMWRNTOL=0 completely disables this alarm.