[Cause]
The torque limit during lower surface detection exceeded the expected value.
[Countermeasure]
The fixed welding tip may have contacted the panel lower surface at the start of the lower surface search. Check that the panel and electrode tip are not touching at the start position and that there is no foreign matter between them. <327094>If they are touching, increase the fixed-side start position electrode tip distance</327094>(SD)<327100>; if workpiece lower surface detection distance is enabled, increase that distance.</327100> For workpiece lower surface detection distance settings, refer to Lower Panel Detection Distance Clamp (workpiece lower surface detection distance) or SPTCH_RSD Instruction (SPTCH_RSD instruction) under Spot Program Touchup Function in Servo Gun Function OPERATOR'S MANUAL. If foreign matter is present, teach a position that avoids it. Execute spot program position correction again. If the problem recurs, take the following countermeasures:
1. Acquire diagnostic data for this condition. The diagnostic data acquisition procedure is described under Troubleshooting in Spot Program Touchup Function in Servo Gun Function OPERATOR’S MANUAL.
2. After this alarm occurs, before performing other operations (power-off or jogging), use the abnormal-state recording function (Abnormal state record in the auxiliary menu) to obtain an image backup and contact the service center. If abnormal-state recording cannot be used, record the conditions and operating steps leading up to the alarm, obtain an image backup and contact the service center.