Siemens has completed an investigation of the reported event.Assessment does not indicate a system failure or malfunction and no non-conformity was identified.The investigation did not identify a clear and verifiable cause of the fault.It was reported that the uninterruptible power supply (ups) started beeping for an unknown reason, usually indicating a loss of main power.This is expected and normal behavior when the power supply has failed.To date, the customer has not been able to confirm whether this was the case on site.It would also be conceivable that the voltage supply to the ups was not guaranteed at this time.In this case, a power supply plug that was not carefully plugged into the ups is plausible.However, this has also not yet been confirmed by the customer.The operating instructions explain accordingly that the user should shut down the system immediately in the event of a power failure, especially since the ups can only maintain the voltage supply for a limited time.The ups in question was inspected on site by the local service department, but no faults were found.Although the system including the batteries apparently functioned as specified, the complete ups was replaced as a precaution.The occurrence rate of the error pattern and the spare parts consumption were reviewed.Any accumulation of errors or even a systematic error that would lead to corrective action 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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