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Multi motor problem

Old 07-20-2020, 07:06 PM
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Default Multi motor problem

Brand new twin. Art. When recommended, freshly charged battery is plugged in, escs beep at about 2 beeps per second. With or without receiver plugged in. I am able to bind the receiver. But still getting beeping. No motor response, just a little jitter. Am I doing something wrong?
Old 07-21-2020, 03:52 PM
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Originally Posted by cjtyped
... escs beep at about 2 beeps per second. ...
The controller is trying to tell you something about its status in beep/morse code, using the motor as a poor loudspeaker.
Look up or google (make/type manual/instructions beep code) the code, several codes.

In case you have a Futaba transmitter, Futaba's need to have their throttle channel reversed.

The controller is using the motor as a poor and cheap loudspeaker, no buzzer/speaker needed. In a loudspeaker a coil moves in/because of changes in magnetic field, same for motor. In a motor magnets move because of changes in magnetic field.
Old 07-21-2020, 03:54 PM
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Originally Posted by cjtyped
Brand new twin. ...
Too long wires batteryside will kill ESC over time: precautions, solutions & workarounds - RCG
Contents
  • Two problems
    ◦ Voltage spikes higher than battery voltage: transistor/FET/chip breakdown.
    ◦ Current through input capacitors too high: caps overheating/popping/exploding.
  • Example: four costly controllers consecutively cremated Name:  frown.gif
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  • Solution I: simply lengthen the motor wires instead Name:  smile.gif
Views: 51
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  • Solution II: add extra capacitors, rules of thumb
    Calculation spreadsheet
  • Capacitor type and polarity/orientation!
  • How & where (not) to add extra capacitors
    As close to or on controller.
  • DIY capacitor pack pictures
  • Capacitor & pack suppliers
  • Expert/manufacturer opinions & their rules of thumb
    They all say the same ... noise_reduction_101, switching_power_supply_design_101.
  • Cause, explanation, water hammer/knock analogy&video, theory
    References
  • Measurements & scope traces

Vriendelijke groeten, en wees voorzichtigName:  wink.gif
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• Without a watt-meter you are in the dark ... until something starts to glow •
e-flight calculatorswatt-metershigh power motor tips&tricksCumulus MFC

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Old 07-21-2020, 03:55 PM
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