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IndustryArena Forum > Machine Controllers Software and Solutions > Controller Cards > 1-axis on controller and need to drive two amps

Thread: 1-axis on controller and need to drive two amps

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  1. 12-18-2008, 09:42 AM #1
    AKFALAR
    AKFALAR is offline Registered
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    1-axis on controller and need to drive two amps

    I have a 2-axis gantry with three servos, two of them drive the y axis. The question is can i drive two Amps using one signal and still keep them synchronized?

    the card is a GALIL 1822 driving AD SURESERVO amps using Pulse+Direction

    Thanks very much...
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  2. 12-19-2008, 07:38 PM #2
    HillBilly
    HillBilly is offline Gold Member
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    The amps will do all they can to stay in position up to the set amount of following error programmed into them. This is true using one drive also.

    The thing to check is the input impediance of the amps to see if the Galil can can provide enough current for two in parrellel.

    Darek
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  3. 12-20-2008, 05:29 AM #3
    Al_The_Man's Avatar
    Al_The_Man
    Al_The_Man is offline Community Moderator
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    How are you closing the loop with these amps? Why go step/dir servo's with Galil?
    I would have thought the best way is to use analogue amps PID loop , spring for an extra axis upgrade and use the gearing command for synchronization.
    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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