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  1. #625
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    14
    Quote Originally Posted by john_100 View Post
    Hi Phill ,

    from your photo I can see the EL817's are used for the direction and enable inputs
    R15 & R16 are 1K pull up resistors connected to the TB6560

    If you bypass the 6N137 that isolates the step signal
    you will need to check the breakout board can sink 10mA as the pullup resistor R14 is 510 ohms

    John
    What I will try to start is put all ICs back on the board and jumper the EL817s, to check what happens. Then I will jump the 6n137 and see what happens. If still no luck I will run the shop and get a battery for my multimeter

    Thanks for the help John

  2. #626
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    All ICs are on the board now. With the EL817s jumpered and the 6N137 as it should be, nothing happens, not even an LED blink. If I jumper them all I get ~2mm a sec movement that's very noisy. So I think I will need to replace the 6N137. Is it possible to use a 4N25 as I have them in stock, if so what pin goes where

    Thanks

  3. #627
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    Mar 2007
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    1910
    Hi Phil ,

    if replacing the 6N137 with a wire link didn't work and you now want to remove the link and fit a 4N25

    offset the 4N25 and cut or bend the pin 6
    so the PCB terminals 1,7 & 8 for the 6N137 are not connected
    as in the diagram . (fitting a socket will make things easier)

    John
    Attached Thumbnails Attached Thumbnails 4n25 V 6n137.jpg   4N25  fitted.jpg  

  4. #628
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    Quote Originally Posted by john_100 View Post
    Hi Phil ,

    if replacing the 6N137 with a wire link didn't work and you now want to remove the link and fit a 4N25

    offset the 4N25 and cut or bend the pin 6
    so the PCB terminals 1,7 & 8 for the 6N137 are not connected
    as in the diagram . (fitting a socket will make things easier)

    John
    Hi Jophn, I tried all suggestions but nothing worked Thanks for the help though, I ordered another 6N137 and once fitted it ran perfectly

    Thanks again

  5. #629
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    what is the best configuration for this board (motors and power supply), with which it works the best, without any modifications or problems? Sry for eng.(flame2)

    I have a red tb6560 3 Axis!

  6. #630
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    Jan 2006
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    156
    I have a tb6560-4axis, the blue one. It works fine with mach3 but now I

    want to use it with a manual pulse controller and I don't know if the

    enable pins are negative or +5v. Perhaps someone knows this and can

    let me know before I damage this board.

  7. #631
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    Jan 2006
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    156
    Halo, anybody there. I'm sure somebody has the info.

    Please share it with me.

  8. #632
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    Jan 2011
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    49

    pulse controller

    Hello, There is a gentleman on this web site that goes by the screen name ger21 he is very informative and has helped many of us cnc'ers out, look him up he may be able to help you.

  9. #633
    Gold Member
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    Jan 2010
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    2141
    Quote Originally Posted by salzburg View Post
    I have a tb6560-4axis, the blue one. It works fine with mach3 but now I

    want to use it with a manual pulse controller and I don't know if the

    enable pins are negative or +5v. Perhaps someone knows this and can

    let me know before I damage this board.

    You will not damage the board, whether you apply +5 volts to the enable input or you apply ground to it. The enable input is isolated via a resistor and an optoisolator (and the input from Mach3 is also isolated from that point through a resistor).

    According to my reading of the schematics referenced in the post at http://www.cnczone.com/forums/821195-post19.html, and more specifically in the schematic at http://www.cnczone.com/forums/attach...3&d=1283911876, which may or may not be identical to the wiring of your board, the optoisolator for the X-axis enable input (for example) is connected to the DB-15 connector, pin 5, and a low input on that pin will turn on the LED inside the optoisolator, which will turn on the output transistor of the optoisolator, which has +5 volts on its collector and takes its output from the emitter which is connected through a 1K resistor to enable pin 4 of the TB6560. That enable pin also has a 33K pulldown resistor to ground (and according to the TB6560 spec sheet, there is also a pulldown resistor internal to the chip). So my interpretation is that a low input on pin 5 of the DB-15 will result in a high signal on pin 4 of the TB6560.

    According to the TB6560 spec sheet, http://www.toshiba.com/taec/componen.../382/27885.pdf, page 4, a high signal on the enable line will enable the driver chip, while a low signal on that pin will turn all outputs off.

    So you will need to put a low signal on pin 5 of the DB-15 connector to enable the TB6560 X-axis (and similar for the other axes).

  10. #634
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    Jan 2006
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    156
    Thank you guys, I was so afraid of burning up my driverboard. Now I know what to do.

  11. #635
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    Oct 2007
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    24

    So called "The Latest 3rd Generation Revolutionary TB6560 Stepper Driver"

    This is my first post, so let me introduce my self: I'm another victim of "Buy first, think later" syndrome, I've recently purchased 4 axis TB6560 driver. It is in it's slow way from China, and while preparing to use it I came across this thread.

    I still don't know which version I'll get (It's the one in aluminum box which serves as a cooler, as in pictures attached), but surfing the eBay last few days I've seen other version which was not there few weeks ago when I've purchased. Since I can't post link's search Google for 'ebay 3rd generation TB6560' and you'll find it. It says in the product description:

    ---
    The Latest 3rd Generation Revolutionary TB6560 4 Axis Stepper Driver Set (TB4CD-P)

    Descriptions:
    The latest 3rd generation TB6565 Stepper Driver has been upgraded to the intelligent, professional and industrial-level drive set by re-designing the PCB board, embedding intelligent memory chip(professional version) and upgrading the external manual control tools (control pad and display panel).
    Actually, the 3rd generation TB6565 Stepper Drivers have two types of versions, one is the standard version, and another is the professional version. Compare to the standard version, the professional version mainly has two more functions than the standard version, one is the “computer G-code recording function”, and another is the “manual programing function”. Except these two functions, these two types of versions have no other differences.
    Firstly, both of these two types of versions have upgraded their PCB boards, the re-designing the PCB board will avoid the TB6560 chip on the board being easily blown as the previous version.
    With the embedded intelligent memory chip, the professional version of this 3rd generation 4 Axis TB6565 Stepper Driver can easily record the G-code running on the CNC software (e.g. Mach3, EMC2, KCAM4, etc..) of the computer, and then rerun the recorded G-code to make the stepper motor work without the computer any more.
    Furthermore, the upgraded external manual control tools (display panel and control pad) on the professional version can be not only used for manually controlling the stepper motor, but also manually programming the G-code. All the manually Programmed G-code will also be recorded in to the embedded intelligent memory chip, and then we also can easily run the recorded G-code to control the stepper motor. Considering that the computer G-code recording function is enough for all the three axis working without computer, to avoid repeated function, the manual programming function is mainly designed for one axis to make linear motion, therefore, the three axis cannot be manually programmed simultaneously. This function is widely used on working which just need one Axis, such as RBI machine, Conveyor etc.
    Lately, both of these two types of versions adopt the totally enclosed optical isolation and bipolar constant-current chopper to insure working at low noise & vibration, and avoid creeping at a low speed. It is very suitable for driving the 2-phase and 4-phase hybrid stepping motors.
    In short, the qualities and functions of the new 3rd generation advanced 4 Axis TB6565 Stepper Driver are revolutionized from the previous version. So, we believe that these two types of versions must satisfy different users on CNC DIY.
    ---

    It looks like to me that someone finally redesigned the board to address the issues that were discussed on this thread.

    I would like your opinion: Should I hope that this is the version I receive, or you think that there is not much difference at all?
    Attached Thumbnails Attached Thumbnails 4-stepper-handle-display-0.jpg   4-stepper-handle-display-1.jpg  

  12. #636
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    Jan 2005
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    1695
    It is very easy to correct the problems which plagued the previous designs. All that's needed is for them to use proper speed opto couplers, power the optos from a separate 5v supply and put in a simple circuit to sequence the power supplies.

    If they claimed they fixed the problem, then I would tend to believe them.

Page 53 of 74 343515253545563

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