[Cause]
The electrode tip wear ratio in single-step mode is invalid (less than 0 or greater than 1).
[Countermeasure]
Set a correct wear ratio in the wear measurement macro (0 or greater and 1 or less). WR_UPDAT is the macro program used in single-step mode. Set the wear ratio at the position where the TWKCAL2 call instruction is displayed: CALL TWKCAL2(“wear ratio“,AR[2]). Refer to the program comments and set the wear ratio.