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  1. 14-09-2018 #8
    Clive S's Avatar
    Lives in Marple Stockport, United Kingdom.
    Clive S
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    Quote Originally Posted by JW1977 View Post
    Ok, thanks but i don’t get where I’m wrong, could you please explain?

    As i see it i have the choice to run them with AC and a PSU consisting of only a thoridal transformer.

    The other alternative would be DC and a PSU with transformer, rectifer and caps.
    The motors have 1,8 mH inductance so I figured a 48V PSU would be sufficient to get speed and reduce heat and back EMF.

    Heres Another schematic where it says AC or DC as Power supply!?

    Click image for larger version.  Name: 2HSS86H 2.jpg  Views: 322  Size: 62.9 KB  ID: 24826
    Ok when I said you had it wrong I was referring to "My drivers (JMC 2HSS86H) can be run with 24-70V DC or 30-100V AC" you have the DC and AC transposed .

    You indicated that you would be leaning towards DC.

    You can have either a transformer with caps and a rectifier OR just a transformer.

    Forget about the back EMF the caps take care of that ( there are caps in the driver as well) The heat is what you set the current to on the drive.

    If you want speed for wood routing then a higher voltage PS is beneficial. I would go with 70V DC but your choice.
    ..Clive
    The more you know, The better you know, How little you know
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