Thread: Emco PC120 Turn

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  1. #121
    Quote Originally Posted by Chaz View Post
    My best bet is probably something like this.

    http://www.zappautomation.co.uk/elec...-supply-7.html

    Move the drive power to this, leave the 24V supply to do the logic stuff only.
    http://www.zappautomation.co.uk/elec...-supplies.html

    edit you beat me to it or build one
    Last edited by Clive S; 10-08-2017 at 09:31 AM.
    ..Clive
    The more you know, The better you know, How little you know

  2. Quote Originally Posted by Clive S View Post
    Also you don't say what PS you are using switch mode are not good for steppers.
    Why ?
    Albert Einstein may have been a genius, but his brother Frank, was a monster

    Having just moved to Windows 10 (which is crap) My stress levels are through the roof !!!

  3. #123
    Chaz's Avatar
    Lives in Ickenham, West London, United Kingdom. Last Activity: 10 Hours Ago Has been a member for 5-6 years. Has a total post count of 1,185. Received thanks 85 times, giving thanks to others 54 times.
    Quote Originally Posted by cropwell View Post
    Why ?
    I googled it.

    This might help answer - http://www.cnczone.com/forums/genera...-steppers.html

  4. This driver is a three phase driver (For Three phase stepper motors) Looking at the part number it implies that the maximum voltage is 80V DC and the current is 6.0 A.
    3 = three phase
    M = Motor driver
    8 = Max voltage (80V)
    60 = 6.0 A maximum current.

    This is the typical makeup of the part numbers.

    Quote Originally Posted by Chaz View Post
    Ye, possibly around 50V.

    They did work well before the previous set of PSUs died. The current PSU is one of them el cheapo ebay ones, I presume they are SMPS.

    Id like to sell the lathe but need it to be 100% reliable before I do. Any suggestions on what PSU would suit if I was just going to upgrade this? Lets assume 36 or 48V max.

    lll take a look at the AM882 anyways.

    Thanks

  5. #125
    Chaz's Avatar
    Lives in Ickenham, West London, United Kingdom. Last Activity: 10 Hours Ago Has been a member for 5-6 years. Has a total post count of 1,185. Received thanks 85 times, giving thanks to others 54 times.
    Quote Originally Posted by Gary View Post
    This driver is a three phase driver (For Three phase stepper motors) Looking at the part number it implies that the maximum voltage is 80V DC and the current is 6.0 A.
    3 = three phase
    M = Motor driver
    8 = Max voltage (80V)
    60 = 6.0 A maximum current.

    This is the typical makeup of the part numbers.
    Thanks Gary. I looked on your and a few other sites to try and find who makes this driver, but no such luck.

    I also know little about the motors, it was all fit by someone before I bought the lathe. Not a bad job overall. The PSUs that failed looked to be fairly high end things, but voltage is only 24V.

  6. #126
    Chaz's Avatar
    Lives in Ickenham, West London, United Kingdom. Last Activity: 10 Hours Ago Has been a member for 5-6 years. Has a total post count of 1,185. Received thanks 85 times, giving thanks to others 54 times.
    Using that search phrase, Ive found this, similar.

    http://www.ebay.co.uk/itm/CNC-3-Phas...p2047675.l2557

    https://www.dhgate.com/product/new-c...126671364.html

    I might be able to find the manufacturer spec eventually

  7. #127
    Chaz's Avatar
    Lives in Ickenham, West London, United Kingdom. Last Activity: 10 Hours Ago Has been a member for 5-6 years. Has a total post count of 1,185. Received thanks 85 times, giving thanks to others 54 times.

  8. So the 6 is RMA current and its up to 80V DC.


    Quote Originally Posted by Chaz View Post

  9. #129
    Chaz's Avatar
    Lives in Ickenham, West London, United Kingdom. Last Activity: 10 Hours Ago Has been a member for 5-6 years. Has a total post count of 1,185. Received thanks 85 times, giving thanks to others 54 times.
    Quote Originally Posted by Gary View Post
    So the 6 is RMA current and its up to 80V DC.
    RMS ? ;p

  10. Yes RMS, have big manly fingers and the a and the s are quite close.

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