Speed controller leads

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Max George - 12 Feb 2007 15:14 GMT

I need to extend the leads on a brushless speed controller to suit a
pusher model.

Do I extend the 3 leads to the motor or the 2 leads that go to the
battery? Or both?

All help appreciated.

TIA

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Max George

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Ron van Sommeren - 12 Feb 2007 17:46 GMT

Goedendag Max,

Extend the brushless motor leads, not the battery leads:
<http://www.wattflyer.com/forums/showthread.php?t=13843>

To reverse rotation, switch any of the three motor leads. NEVER EVER switch
the battery leads, will fry your controller.

Vriendelijke groeten ;-) Ron van Sommeren
14th.int. electric fly-in, Aug.26, Nijmegen, Netherlands
http://home.hetnet.nl/~ronvans/

>I need to extend the leads on a brushless speed controller to suit a pusher
>model.
[quoted text clipped - 5 lines]
>
> TIA

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Max George - 13 Feb 2007 07:42 GMT

>Goedendag Max,
>
>Extend the brushless motor leads, not the battery leads:
><http://www.wattflyer.com/forums/showthread.php?t=13843>

Thank you Ron. Very helpful.

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Max George, Now that we're organised, what do we do?

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The Natural Philosopher - 13 Feb 2007 10:20 GMT

> I need to extend the leads on a brushless speed controller to suit a
> pusher model.
[quoted text clipped - 5 lines]
>
> TIA

Mm. The motor is marginally better. Its dangerous to extend teh battery
leads - too much resistance abd indictance can sterss teh input
anti-ripple capacitor, and cause it to blow, or worse, teh whole circuit
to go instable.

Adding a big fat low ESR capacitor to the ESC across the power wires can
help a lot..BUT it gets heavy.

Longer motor leads is safe, but it may cause extra interference and/or
unreliable sensing.

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Model Forum / Radio Controlled / Air Models / February 2007

Speed controller leads