MMM / Neu Motor timing

[hoovhartid]

I was hoping someone could explain what changing the timing does and suggest the best timing for the MMM and a NEU 1515/1y and 1.5D

I did a search to find out what most people are using...or for any info in general, but I have not found much.

Most seem to be running the timing on the lowest setting, but I have no info as to why?

I set mine to lowest, but only because I had read Patrick suggest it for keeping temps down.

I'd feel better about it if I didn't feel like such a sheep.

I'd like to actually know what its for.

So Maybe someone here can explain the Timing settings to me and explain why one setting would be better than another.

Thanks in advance,
Jarrad

[bdebde]

The instructions with the Neu motors (you do read the instructions?) say to run low timing.

[JaySki]

Originally Posted by bdebde

The instructions with the Neu motors (you do read the instructions?) say to run low timing.

I think he was asking for an explanation of what adjusting the timing does? Not so much where it should be as he already had been told to keep it low.

I'd like to oknnow what the timing does as well....

[VintageMA]

From my conversations with Castle techs the timing is as follows:

Timing change in a brushless motor through software can be compared with twisting the top part of the can of a brushed motor to advance the timing.

With BL unsensored motors the timing is automatically and constantly varied within the software. Changing the setting with the CastleLink only changes the range around which the automatic timing varies.

With increased timing you theoretically get a bit more power out of the motor at the expense of efficiency (ie: more heat). What's really happening is that the point at which the motor would usually fire (the position of the rotors alignment with respect to the magnetic N/S poles of the magnets) is moved forward in degrees (think 360 degrees to complete a full circle) to produce stronger push/pull forces.

My understanding though is that it is not as significant a change in a BL motor as it is in a brushed motor because timing is control automatically by the ESC anyway based on the ESC's knowledge of the rotor position. You may only see a few percent increase in power (pretty negligible).

A few threads and articles around pertaining to the Neu/MMM combo and general rule of thumb has been up to about 3* of timing advance for the Delta wound motors and between 5-10* for the Y wound motors. Apparently the Delta wound motors don't take as kindly and will heat up a lot more.

All things being equal - with the power of the current BL setups - especially a 1515 motor which can easily crank out 3+ HP on strong batteries - I don't really see the need for more power in an already overpower setup.

You'd really probably need an Eagle Tree to see the difference in settings, but I've tried 0* and 3* on a 1515/2.5d with 6S and can't tell any difference. I usually just run timing at lowest setting.

[JaySki]

Thank you sir! That is great info.

according to Neus web site run a delta wind at "0" and a wye wind as high as "10"

[Dragonfueled]

Hmm good stuff I was wondering about timing on the neu myself

[hoovhartid]

Originally Posted by bdebde

The instructions with the Neu motors (you do read the instructions?) say to run low timing.

BTW, I ordered my Tekno Neu from Impakt.

It never came with instructions.


Thank you for your answer though... It was VERY informative


__________________________________________________

VintageMA,
Thank You. Thats what I was looking for.
I read about timing in the MMM manual, but your answer made more sense to me.

[Pdelcast]

A good rule to follow is to use low or normal timing for everything, unless you have a really good reason to use high timing. High timing is hard on EVERYTHING.

what is more efficient low or normal?

[BrianG]

Judging by the fact that raising timing mostly produces more heat with less performance, I'd say "normal". Any increase in temps with no increase in performance means power not getting to the wheels, which is power lost, which is reduced efficiency.