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IndustryArena Forum > CNC Electronics > Servo Motors / Drives > variable speed drive is it to big

Thread: variable speed drive is it to big

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  1. 01-02-2006, 11:30 PM #1
    69owb
    69owb is offline Registered
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    variable speed drive is it to big

    Hi everybody
    I have a question about a drive i found thats rated 20/50 hp the armature amps are 89amps, The spindle motor I have is rated at 15hp and 55 armature amps i know the drive is allfull big for the motor but the price is right? Will this drive smoke the motor or will there be any other problems running a drive this big
    Thanks for the help!!!
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  2. 01-02-2006, 11:44 PM #2
    Al_The_Man's Avatar
    Al_The_Man
    Al_The_Man is offline Community Moderator
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    I would say as long as you can protect it for your motor rated current, either by adjustment, parameter/and or/fusing you will be Ok, I am assuming this is a DC spindle motor? If DC and a wound field, make sure that the field supply is compatible.
    Al.
    CNC, Mechatronics Integration and Custom Machine Design

    “Logic will get you from A to B. Imagination will take you everywhere.”
    Albert E.
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