Need Help! Need advice on what drive to buy for these Older Servos


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Thread: Need advice on what drive to buy for these Older Servos

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    Registered tager_rot's Avatar
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    Wink Need advice on what drive to buy for these Older Servos

    So I decided to buy a Gerber Saber 408 used from a large company who bought a new cnc.

    So when I got it back to the shop and wired it up the Driver board was or did die.

    The part is about $1900. So this pushed me to do my retrofit sooner than I had hoped.

    Please bare in mind my only CNC experience has revolved around stepper motors.

    My question is what drives or servo amps (not sure what term to use) can I use to power these servo motors:

    Here is the data plate info

    Parvex

    Type: RX320ER1026 -Z
    No.:60112 10/99 <--- ya they are old
    Mo:1,08Nm lo: 7,8 A
    u: 54v N: 3000 min 1
    z=K207


    I believe the abbreviations on the data plate are in French having been made in France at the time...

    P.S. I'm hoping perhaps al_the_man sees this, you may be my only hope lol

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    If you're too busy... You're not charging enough!


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    Community Moderator Al_The_Man's Avatar
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    Default Re: Need advice on what drive to buy for these Older Servos

    IIRC Parvex made BLDC motors, check to see if they have brushes, if not they are BLDC.
    Can you post a pic of them?
    It all depends on what control you intend using, one that uses step/dir or analogue servo control.
    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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    Default Re: Need advice on what drive to buy for these Older Servos

    Its at the shop but they are brushed.

    I am familiar with Mach3 that's what I plan to use for this table, so step/dir?

    Also I can't seem to find and info on how to change the brushes when worn (just trying to prep for when they do). I am just not sure if there is more to it than the obvious (ie remove caps unscrew plug and blow out carbon stick new ones in).

    If you're too busy... You're not charging enough!


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    Community Moderator Al_The_Man's Avatar
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    Default Re: Need advice on what drive to buy for these Older Servos

    Brushed motors are the easiest to find drives for.
    You could look at the Larking drives for step/dir.
    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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    Member awerby's Avatar
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    Default Re: Need advice on what drive to buy for these Older Servos

    The Gecko G-320X drives would probably run them: G320X Digital Servo Drive | GeckoDrive

    [FONT=Verdana]Andrew Werby[/FONT]
    [URL="http://www.computersculpture.com/"]Website[/URL]


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    Community Moderator Al_The_Man's Avatar
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    Default Re: Need advice on what drive to buy for these Older Servos

    And if you go with the Dynomotion and Kanalog add on, there are numerous surplus 0-10v quality analogue drives out there on ebay etc, such as A-M-C, Copley, Aerotech etc.
    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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    Default Re: Need advice on what drive to buy for these Older Servos

    Thanks a ton for the help! I think I'm going to try out the Geckos g320x for the simple reason that I have dealt with their tech support and they have been a huge help. Once it's done I'll post my success to this post.

    If you're too busy... You're not charging enough!


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    Default Re: Need advice on what drive to buy for these Older Servos

    Hi there, did the Geckos work? I am in exactly the same position as you, I bought a used Sabre 408 with an electrical fault, it has the same model servos, Parvex RX320ER1026.

    I'm looking for step/dir drives for them, any info appreciated.


    regards
    ned

    http://www.cnczone.com/forums/attach...d=371322&stc=1

    http://www.cnczone.com/forums/attach...d=371320&stc=1

    Attached Thumbnails Attached Thumbnails Need advice on what drive to buy for these Older Servos-4-jpg   Need advice on what drive to buy for these Older Servos-z-axis-servo-plate-jpg  


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    Anyone have success converting the Sabre 408 to gecko drives?

    I’m in the same boat and am looking for help on how to wire the encoders. They have 9 wires for the encoder alone.....



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    Default Re: Need advice on what drive to buy for these Older Servos

    behold the goodness my friend - the net made my life easier and now I can do the same to yours -

    http://www.cnczone.com/forums/commer...bre-408-a.html



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Need advice on what drive to buy for these Older Servos

Need advice on what drive to buy for these Older Servos