In KR210 KRC4 , during resistance spot welding ,on the first spot a error message is displayed 'incorrect gun position,part thickness,mastering.Repeat point ?? 'yes' & 'no'' .
In this situation the wear value .i.e. eg_wear[1] goes to abrupt high values like 22 or -22 or 15 randomly.
i have tried-
1.changing encoder cable of external gun ,
2. remastering external axis
3. updating wear at the time of error.
4. mechanical inspection of external gun for any damage.
5. checking default values of servogun variables like eg_wear_max, eg_weld_distance,eg_worn,eg_init_tol_p,eg_init_tol_n,eg_touch_diff, etc
6.replacing the shank
still error comes randomly.
we are using equalizing tech here & servogun version 'ServoGun_TC_40'
any suggestion is welcome.
thanks in advance