Three-phase motor power regulation

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  • juergenb
    Nescafe Aeroccino, still fails with new Motor (red flashes only once)
    by juergenb
    Hi,

    i am asking for some Help.
    I have one of these Nescafe Aeroccino (Milk Frother) things with a bad motor.
    The Motor didn´t start anymore and internet is full of users just swapping the motor for a Mabuchi RF-500TB-12560.
    So i got a few of these from Banggood.

    I swapped the motor and now i have a new fault condition.

    In a working Frother you would press the start button, it will light red and work for a few minutes.
    If you press longer it will light blue and just mixup the milk.

    With the new Motor it just starts...
    03-23-2021, 11:24 AM
  • Donny2derby
    Could you run a 3 phase motor using Arduino?
    by Donny2derby
    If you connected in the control wiring onto an inverter could an arduino programmer be used as the controller?

    In my (limited and attempting to learn mind) using the right set of code and some simple wiring this would be relatively simple to achieve??

    Yes?? Or if not can someone tell me why please 🙂

    Thanks 👍🏻
    03-28-2024, 03:22 PM
  • sbt123
    charnwood w821 mini wood lathe motor problem
    by sbt123
    hi there,im having a look at repairing a wood lathe for my dad,(charnwood w821)the problem is when turning up the variable speed control,the motor starts to stop and start by itself,if i continue to turn up the speed it will trip the mcb in the consumer unit,there is also a slight smell of burning from the speed controll box.,Another strange symptom is the lathe can be unplugged from the mains after switching it off and the motor will spin a couple of times by itself,so far ive put a new speed controll potentiometer on and new motor brushes,ive also tested the motor windings and everything looks...
    10-27-2024, 03:43 AM
  • d00m178
    Philips toothbrush 4100 (HX369BK) - motor getting hot
    by d00m178
    trying to fix Philips toothbrush 4100 (HX369BK)
    The battery started draining quickly.
    After disassembling it, I discovered that the motor gets very hot when brush is off, which is apparently causing the battery to lose charge.
    The motor is connected to contacts M1 and M2.
    When I turn on the brush, 0.4V appears on these contacts, and the motor starts running as expected.
    But when I turn off the brush, the voltage changes to 3.8V—exactly the same as the battery.
    The motor gets so hot you can't touch it. And after 5 minutes, the battery drains to 0V.
    (To...
    11-12-2025, 03:11 PM
  • mikey5791
    Help identify this motor
    by mikey5791
    Hi all forum members,
    Found this unknown motor discarded in a junk yard and took home for learning experience. By the look of it, I suspect it is taken out from a type of air blower probably running on ac power. I used digital multimeter on ohm/resistance scale and it doesn't read anything on those 2 black wires. So, this motor is not shorted and should be good to run.

    Correct me if i am wrong on the initial test.
    Can anyone kindly advice on how to test run this motor based on visible external two black wires. Fyi, i don't see any marking on the motor body nor smell anything...
    11-24-2023, 07:54 PM
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