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Thread: 401 servo alarm (VRDY off)

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  1. 07-20-2010, 07:07 AM #23
    MysticMonkey
    MysticMonkey is offline Registered
    Join Date
    Mar 2009
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    377
    401 ALARM is 'normally' caused when the Fanuc CNC isnot getting the 24 V ready signal send via the ESP switch in the PSM



    402 SERVO ALARM: SV CARD NOT EXIST (sounds like the servo card is faulty)
    Attached Thumbnails Attached Thumbnails FANUC ALARM 401 001.JPG   FANUC ALARM 401 002.JPG  
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