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IndustryArena Forum > CNC Electronics > Servo Motors / Drives > how connect drivers to parallel port?
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  1. #1
    Join Date
    Oct 2007
    Posts
    1

    how connect drivers to parallel port?

    I'm making a cnc router with stepper motors, but recently i got 3 servomotors from a copier machine

    [img=http://img292.imageshack.us/img292/4053/p1000494fw7.th.jpg]

    [IMG=http://img292.imageshack.us/img292/764/p1000500um0.th.jpg]

    each one with their driver, the drivers work with SLA6050 and HA13494 ics

    [IMG=http://img152.imageshack.us/img152/6551/p1000504jo4.th.jpg]
    [IMG=http://img152.imageshack.us/img152/4485/p1000505ko2.th.jpg]

    my question is, how connect the drivers to a parallel or serial port, each driver has a 6 pin conector

    [IMG=http://img187.imageshack.us/img187/5356/p1000503fz2.th.jpg]

    thanks for any help you can give me, and sorry cause my english is not good

  2. #2
    Join Date
    Dec 2005
    Posts
    3319
    Your options are limited:

    1. Try to find a service manual/wiring diagram for the copier. When/if you find the type of communication protocol, you simply write a program that will simulate that on/with thru your parallel port. This is where I'd try to start.

    2. Reverse engineer the drivers and the driver IC's. This will tell you what sort of communication path that they are expecting. IF they used standard IC's, this is tecious but enlightening. If they used "house numbered IC"s, you'll probably NEVER figure out how they drive the damn things - this is done intentionally to prevent copying/unauthorized tinkering with the drivers. Basically, the outfit who made the device you got the parts from did NOT want you messing with them outside of the intended use. BTW, if the device is Pacific Rim manufactured, you'll play hell in getting ANY adaptive infor from the OEM - they simply don't support that type of use of their product. When/if you find the type of communication protocol, you simply write a program that will simulate that on/with thru your parallel port.

    3. Hope that someone, someplace has done the same thing you're trying to do and will share their scheme with you.

    The salvaging and resurrection of copier and printer servos and steppers is NOT a plug and play process. It is a challenging, somewhat difficult science in the art of reverse engineering and/or code writing/adaptation. Some guys master it and some guys go down in flames trying.

    THis is not meant to disuade you but to point out the magnitude of the task ahead of you.

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