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Update (was :- Mystery Motors - help required)

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

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  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.

    -A
     
  2. Drools

    Drools

    1
    0
    Nov 1, 2010
    Anymore testing on this motor? Does it have any torque?
     
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