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  1. #1

    Join Date
    Apr 2019
    Posts
    7

    CW8060 connection

    Hi,
    I am new here.
    Can anyone help me to connect CW8060 driver to the breakout board?
    CP+
    CP-
    CW+
    CW-
    EN+
    EN-
    ?

    Thanks!

  2. #2
    Registered
    Join Date
    Mar 2007
    Posts
    1910

    Re: CW8060 connection

    once you deside if your going to use a common +5V connection to CP+ , CW+ & EN+ or common -5V connection to CP- , CW- & EN- to the CW8060 stepper drivers

    assuming your using Mach 3 in pins and ports you will need to assign the function of the BOB output pins P4 to P9 and pins P16 & P17

    by default if you don't connect the stepper driver enable terminals (EN + EN-) the driver will be enabled

    so the minimum connections to the driver is the common +5V or 0V , clock pulse CP and Direction CW

    for a 4 axis machine you could make

    P9 the X axis CP P8 X axis CW

    P7 the Y axis CP P6 Y axis CW

    P5 the Z axis CP P4 Z axis CW

    P17 the A axis CP P16 A axis CW

    Click image for larger version. 

Name:	BOB to driver connections.jpg 
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ID:	420268

    John

  3. #3

    Join Date
    Apr 2019
    Posts
    7

    Re: CW8060 connection

    Many thanks John!

  4. #4

    Join Date
    Apr 2019
    Posts
    7

    Re: CW8060 connection

    After wiring like this, all is ok and not.
    Some times motors run some times not, when push Jog +/-.
    Or run X + and Z + or Z- not..etc
    I have to play many times with all X+-/Y+-/Z+- Joging to get some movements from motors.
    I've measured 5V pin and get me 2.4V.
    Could be this a problem?

  5. #5
    Company Representative
    Join Date
    Oct 2005
    Posts
    814

  6. #6
    Registered
    Join Date
    Mar 2007
    Posts
    1910

    Re: CW8060 connection

    view2
    when did you measure 2.4V on a pin ?

    assuming your using a multimeter

    you will see the direction pin toggle between 0V & 5V as you change direction

    while jogging , the step pin will switch between 0V & 5V so fast the meter will
    display the average voltage

    if the pin is at 0V 50% of the time the voltage displayed will be about 2.5V

    John

  7. #7

    Join Date
    Apr 2019
    Posts
    7

    Re: CW8060 connection

    Thanks guys.

    1.In the John's "BOB to driver connections.jpg" above, CP+, CW+ go to + 5V but in the "automationtehnologies" pdf wiring, CP+ and CW+ go to GND.
    Wich one to consider ok?
    2. I still have the problems with the stepper motors:
    Some times motors run some times not, when push Jog +/-.
    Or run X + and Z + or Z- not..etc
    I have to play many times with all X+-/Y+-/Z+- Joging to get some movements from motors.

    My actual connection is CP+ , CW +, EN+ go to +5V, CP- to pin 4, CW to pin 5, EN- to pin 16 for X axis for example
    In Mach3, Dir and Step are set as LowActive and Enable1 is also Active Low

    When measure with multimeter between GND and pin 4 (as example) it give me 2,4 V even if I am joging in + or -. So when jog the 2.4V is the same value

    Any ideas?

    I measured

    Thanks

  8. #8
    Registered
    Join Date
    Mar 2007
    Posts
    1910

    Re: CW8060 connection

    for the LED inside of an opto-isolator use in the stepper drivers to light
    the anode has to be made positive with respect to the cathode

    the volt drop across the LED depends on the colour
    for a red LED the volt drop will be about 1.8V

    with a 5VDC supply to the driver step , direction & enaple inputs
    the 270 ohm resistor will limit the LED current to about 12mA

    Click image for larger version. 

Name:	opto-isolator 5V input.jpg 
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ID:	422026

    John

  9. #9

    Join Date
    Apr 2019
    Posts
    7

    Re: CW8060 connection

    I've solved the problems!
    I didn't know that the breakoutboard it should be connected also to USB computer in order to get +5V )

    Thanks guys

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