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  1. #1
    Join Date
    Dec 2002
    Location
    Titusville Florida
    Posts
    337
    looking for info on high dc bus alarm, voltage goes to 850 on startup, drive book will not go into detail, 486 volts going into drive york ytk4d7f1-csj drive tm-503t b8-46d

  2. #2
    Join Date
    Dec 2002
    Location
    Titusville Florida
    Posts
    337
    Found problem,Motor grounded. unsure on this alarm on grounded motor.

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