The described issue was examined.No malfunction or failure of the system was identified.The analysis of the logfiles did not indicate any unintentional or unusual movement.There were two events in which a motorized movement of the affected axis was active around the indicated time of the incident.For both movements the dead man grip (dmg) was activated by the user.Motorized movement is only triggered if the two signals (dmg and motion request) are applied to the motor controller at the same time.Thus, both movements were initiated intentionally by the operator.The log files also show an operation of the organ program (ogp) drive function.This function automatically moves the system to a defined starting position, according to the selected ogp.This may have been interpreted as an unintended movement by the operator.During investigation it was identified that the 3d force sensor was defective.However, this part is not relevant for the described issue.The force sensor was replaced on site by local service.
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