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ESC for brusheless motor

Discussion in 'Sensors and Actuators' started by wdariusw, Jun 17, 2015.

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  1. wdariusw

    wdariusw

    149
    7
    Nov 10, 2014
    Hi all ! I bought that ESC http://www.ebay.com/itm/191369476754?_trksid=p2057872.m2749.l2649&ssPageName=STRK:MEBIDX:IT and that motor http://www.ebay.com/itm/271868927455?_trksid=p2057872.m2749.l2649&ssPageName=STRK:MEBIDX:IT . Also I LIPO battery for that. This is first time when i want run brusheless motor. When i connected all 3 wires from esc to motor, and powered esc, motor beeps once. As i understand i need PWM signal into the WHITE esc wire and ground on BLACK wire. I tried various frequencies, but nothing... what i'm doing wrong ?
     
  2. Minder

    Minder

    2,948
    623
    Apr 24, 2015
    Was it a PWM signal that you tried?
    There are many cheap motor testers on ebay, also circuits if you want to build your own, the beeps will indicate how and what you have connected, usually in a sheet from the Manuf. when connected to a reciever.

    Max..
     
  3. Arouse1973

    Arouse1973 Adam

    5,164
    1,080
    Dec 18, 2013
    You need specific timings for RC equipment control. Here is a picture of some common timings used.

    RC_PWM.PNG
    Thanks
    Adam
     
  4. wdariusw

    wdariusw

    149
    7
    Nov 10, 2014
    I programmed mcu with 50% pwm with 1ms pulses, and nothing. So from diagram minimum speed is 1ms high and 19ms low , and maximum speed is 2ms high and 18ms low?
     
  5. Arouse1973

    Arouse1973 Adam

    5,164
    1,080
    Dec 18, 2013
    Try with a 20 ms delay between the rising edges of the pulses.
    Adam
     
    Martaine2005 likes this.
  6. wdariusw

    wdariusw

    149
    7
    Nov 10, 2014
    Will try it tomorrow ;-)
     
  7. wdariusw

    wdariusw

    149
    7
    Nov 10, 2014
    It works great, thanks ! :)
     
    Arouse1973 likes this.
  8. wdariusw

    wdariusw

    149
    7
    Nov 10, 2014
    This is video of my simple experiment . Motor minimal speed is high pulse is about ~1.2ms and maximum speed lower than 2ms.
     
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