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    User name Jack (Techs)

    Log entry time 19:02:03 on July 16, 2010

    Entry number 331634

    keyword=Right Q2 crossed wiring is internal to the magnet

    Since the very beginning the RQ2 power supply has been set to the opposite polarity shown on the software GUI. There was assumed to be a crossed cabling somewhere. Today I verified that the power supply is connected correctly and any crossed wiring must be internal to the magnet. There is no simple way to make this easier for future troubleshooting work on the magnet. We will note this, put up some small signs, but the bottom line is that one of the Q2/Q3 quads is internally cross-wired compared to the other three. This has no affect on any previous running. We knew about it from the beginning and corrected for it in software, always setting the power supply polarity opposite of the others. The system will remain as it is.