Motor RPM Reverse Direction

Can someone confirm regardless of how a 2200 with a MMM is wired the motor rpm will be the same? Read somewhere that reversing the motor will generate 2050 +/- rpm..

Can't see how this is possible, but would like to confirm.

[brushlessboy16]

Dont qoute me on this but i beleive that that is for motors that are timed for a certain rotatio(brushed motors that are made to run cw, or ccw). Im pretty sure it does not apply to brushless motors

[BrianG]

I think you're right BLboy.

[bruce750i]

Yeah, without a given voltage this sounds like a myth. We need a R/C version of Myth Busters for matters like this.

[BrianG]

Hopefully a little more scientific approach than the crap methods MythBusters uses though...

[J57ltr]

I have read that Y motors like to run in a specific direction but I don't remember the source so I would like to know if this is true as well.

Jeff

[RC-Monster Mike]

This would apply to a timed, sensored brushless motor being run on a sensored ESC (Novak, for example) as well as brushed motors.

[brushlessboy16]

Since all "timing" is done inside the algorithm of the esc- you would think since most esc's have the option for reverse rotation- that the motors are neutrally timed.

[suicideneil]

^ That only applies to sensorless setups- the novaks and similar motors often have adjustable endbells that you can advance; the endbell houses the hall sensors that determine when each phase fires, and are seperate to the phases themselves. Sensorless motors have the timing dtermined by the esc > no hall sensors.