Connect with us

Update (was :- Mystery Motors - help required)

Discussion in 'Misc Electronics' started by Andre, Feb 16, 2004.

Scroll to continue with content
  1. Andre

    Andre Guest

    Hi there all.

    Re. the Copal motors extracted from those old Compaq 15/30 DLT
    drives, part number LBT79-002 and possibly the -001 variant and others
    with the 9-pin connector.

    I've got them going :) they need +12 and +5V supplies (logic and
    power). Here's the pinout.

    Pin 1 = Motor drive enable 0=Off 1=On
    Pin 2 = Gnd
    Pin 3 = Direction control 0=CCW, 1=CW
    Pin 4 = Output from sensor A 2.5V centre
    Pin 5 = +12V In
    Pin 6 = Gnd (internally connected to pin 2)
    Pin 7 = Output from sensor B 2.5V centre
    Pin 8 = Output from sendor C 2.5V centre
    Pin 9 = +5V In

    Connect a 1.5K resistor between pins 2 and 3 to ensure reliable
    switching, else pin 3 floats at 1.7V and the motor is unstable.

    It may be possible to pulse width modulate the motor enable (pin 1) to
    get speed control.

  2. Drools


    Nov 1, 2010
    Anymore testing on this motor? Does it have any torque?
Ask a Question
Want to reply to this thread or ask your own question?
You'll need to choose a username for the site, which only take a couple of moments (here). After that, you can post your question and our members will help you out.
Electronics Point Logo
Continue to site
Quote of the day