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DCS and power system status

DCS and power system status. The PS hardware run fine along the entire year with minor problems. Few improvements has been studied and added to new PS firmware for different components under the DCS control:

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DCS and power system status

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  1. DCS and power system status • The PS hardware run fine along the entire year with minor problems. Few improvements has been studied and added to new PS firmware for different components under the DCS control: • MAO: driven and safe power off procedure realized on firmware side, to handle possible problem on the 3-phase line • A3016: several features added to prevent possible problems on the LBB during the on/off and handle “instantaneously” single channel problem. • A3512N: firmware to switch voltage via hardware in case of DSS/ safety actions. • The installation of each new firmware on the detector requires tests and major upgrades on the software side too. • RPC DCS run smoothly over the entire year, all the problems handled correctly, no downtime occurred for DCS problems during the entire data-taking period, involving only one on-call expert with OM help. • Periodically maintenance upgrades released during TA, helped to improve performances, stability and the usability for cDCS shifter. • Improvements and upgrades are needed on the software in: • Integration of new hardware’s firmwares and functionalities introduced. • Managements and visualization of the alerts and warnings, coming from low level hardware components. Homologate them to the CMS guidelines. • Db configuration for HV settings and on gas major problem actions. • Actions and info from the DCS-DSS and infrastructures data • Improving and standardize the recovery procedures in case of problem for software and server pc. Giovanni Polese - CERN

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