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  1. #1
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    Default How's your Chinese?

    Bought this DC spindle and power supply

    FOR Mini CNC Router AIR Cooled DC Spindle Motor With Clamp Shaft With Power ER11 | eBay

    but it has no connection info and the labels are in Chinese

    Can anybody translate these for me, especially the 6 boxes on the right hand side.
    The left 3 connections go to a 4.7K pot.

    Any help would be appreciated.






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  3. #2
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    Default

    The box has english on it for 2 of them. So far right two connections look like your 220V, middle is anybody's guess, left pair is your output, which is probably controlled by the pot.

    knowing what the WK648 was about would help.

  4. #3
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    Since you know your AC lines you should be able to work out N & L by looking at the PCB for which goes to the fuse (AC-L)

    From there use a multimeter to work out your negative and positive terminals.


    I'd also add an earth wire to the chassis.



    This is an absolute stab in the dark and I could be wrong but I'd think it'll be wired as below.

    l DC+ l DC+ l DC- l DC- l AC-N l AC-L l

  5. #4
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    The literal translation is as follows:

    Potentiometer - Power Indicator - Export - Excitation - Enter AC220V

    Export means output and would be the variable voltage as set by the potentiometer.
    Excitation probably refers to a field coil output (which Big Shed's motor doesn't have) and would be a fixed voltage.
    Assuming that both outputs share a common connection (not necessarily grounded), then the second and third terminals would be it.

    Note: this is all guess work based on translation from two different sources, neither of them me!

    I passed this info on to Big Shed but if he has any sense, he's off for the long weekend and not reading forums.

  6. #5
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    Thanks all for your input.

    Thanks Geoff, I will sit down tomorrow and have a look at the circuit board to establish 240 A and N, then test the other 4 terminals for continuity between them, then switch on the 240 (fingers crossed) and read the output on those terminals.


    When I am happy with all that I will hook up the motor, fingers crossed.

  7. #6
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    Better late than never I guess, but I finally got an answer from the Chinese Ebay seller!



  8. #7
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    Finally hooked up the DC Spindle Power Supply, first the AC, LEDs came on and there was DC at the first 2 terminals.

    So, it is confirmed the outputs are:

    DC+ DC- ?? ?? AC-N AC-L

    The middle 2 appear to have about 120V DC on them.

    The spindle runs very quietly, it remains to be seen how much torgue it has under working conditions.

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