Hillhater wrote:Anyone like to offer any feed back on this "sync problem ? .. 63-54 , 250kv motor , 5 cell lipo.
I have tried re-programming the ESC (Turnigy KF 100) with different combo's of :-
... timing, 5 - 18 deg,
... start normal , soft etc,
...PWM frequency 12 - 24 khz
I still get what i assume is "sync failure" at med speed under load ..( screeching sound and motor stops with throttle still on)
Any suggestions for a optimum working set up.. Timing, PWM freq' etc ?
Make sure you don't have any kind of an issue with something binding or actually stopping the motor. I ran into a problem just like that today with my gf's bike. I didn't space her bearing cover out quite far enough and the roller shaft dug itself into the aluminum. I'm surprised she didn't pop a controller. She must have been pulling a huge amount of amps when it happened.
I thought maybe she threw a magnet in her motor (even though that would surprise me with that small amount of power). I tried turning the motor and it was very tight. Then I felt the motor mount and it was VERY hot. Easy fix though.
Anyway, if the motor is stopping for no other apparent reason look for mechanical issues too.