Siemens has completed an investigation of the reported event.The root cause was determined to be a hardware error.The initial report assumed that no movement of the robot was possible, however, this did not affect the complete system as investigated.According to the log files, system movement at slow speed was possible with the exception of the affected swivel axis of level a of the biplane system.The system behavior was caused by a defective encoder cable which was proven by testing the replaced and returned part.The affected encoder cable was replaced by the local service organization and the error has not been reported again.A general problem can be ruled out as this would have been noticed during the final inspection at the factory and during the final tests on site.The spare parts consumption of the encoder cable was checked and any accumulation of faults or even a possible general fault that would require correction of the installed base could not be determined by the investigation.After detailed investigation, the incident is not classified as a reportable event as neither serious injury, death nor an unexpected, prolonged hospitalization of the patient or any other person occurred or could be expected.
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