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  1. #1
    Join Date
    Sep 2019
    Posts
    4

    Hitachi Seiki TF15

    Hi Folks,

    I have Hitachi Seiki TF15 with 2 alarms on the screen:

    906 PCU Circuit protector in the 3rd axis is in OFF position,
    890 Regenerative Resistor in the 3rd axis overheated,

    I followed schematic in maintenance manual and cannot see a standalone unit identified as PCU. All units/ drives seems to be NEC ADU.

    I noticed the black plastic switch under spindle drive unit was OFF. When moved to ON position I got 802 alarm.

    Not sure where to go next? I have attached solutions as per manual.

    Hopefully someone can put me in a right direction
    Attached Thumbnails Attached Thumbnails D66BFA1B-D71E-4DF7-A2EB-7D099B9FF320.jpg   E4A950D7-611D-4499-A22A-CABC21CF3201.jpg  
    Last edited by Mjakubi; 09-21-2019 at 07:58 PM. Reason: adding tags

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