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-   -   Mamba esc's and motors (https://www.rc-monster.com/forum/showthread.php?t=22033)

NoControl 07.03.2009 07:17 AM

Mamba esc's and motors
 
Antbody know if MM or MMM can work with a brushless sensored motor minus using the sensor of course?

Jabe 07.03.2009 07:56 AM

Yes it will work, i have used MM with LRP X11, but it had cogging on start, i had to adjust advance to 0 from esc and from motor.

NoControl 07.03.2009 09:33 AM

Cool thanks, do also happen to know if you can still get a signal from the sensor. I only ask because I wanna use a motors sensor to monitor the motors rpm on my logger.

suicideneil 07.03.2009 09:02 PM

I doubt it, the sensored motors use a hall-effect sensor to generate a signal- the sensor has to be plugged into a sensored esc for it to interpret that signal & 'see' the rotor posistion. Unless the logger is capable/ compatible with hall sensors it probably wont work.

The Eagletree loggers do get rpm data somehow though- voodoo magic I believe.... :/

NoControl 07.03.2009 11:05 PM

Hmmm hopefully one of novak guys will answer this.

johnrobholmes 07.04.2009 12:03 AM

If you send a 5v source to the hall sensors you can get a signal out. I think the eagle tree tach is just a hall sensor as well, so you may be able to tap the digital output of one of the sensor wires and use it.

What's_nitro? 07.04.2009 12:05 AM

^^ Yep. The hall sensors need a power source to produce a signal.

johnrobholmes 07.04.2009 12:20 AM

Looking at my ET logger, you could totally tap the sensors built in your motor and use them.

himalaya 07.05.2009 05:01 AM

Tried MMM with several sensored motor, have zero problem driving them.

Hall sensors works with magnetic field, the Eagletree logger BL RPM sensor connects to 2 of the 3 motor wires, filter high frequency components and send the polarity(phase) changing signal to the logger, it has no Hall sensor.

NoControl 07.06.2009 11:36 PM

Yea thats what I was thinking, since my sentry has a HES for sensorless motors and then a cable for sensored, and thats kinda why I wanted to know if it would be possible to use the built in sensor to track rpms with out having to glue magnets onto rotating parts.

johnrobholmes 07.07.2009 09:29 AM

The eagle tree also has a hall effect tach available, so it has the capability to work with internal sensors as a tach.


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