On 30 January 2014 23:58, Dave Cole <linuxcncro...@gmail.com> wrote: > Except that if you put it on an axis and you wanted to stop, the drive > could not apply braking torque..
Surely there is no torque only when there is no position error. With the slightest hint of overshoot the motor will be applied in reverse? (unless when they talk of 2-quadrant control they really do mean that the motor will only provide torque in the current direction of motion, which would, on the face of it, be hard to enforce with only hall-sensor commutation) -- atp If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto ------------------------------------------------------------------------------ WatchGuard Dimension instantly turns raw network data into actionable security intelligence. It gives you real-time visual feedback on key security issues and trends. Skip the complicated setup - simply import a virtual appliance and go from zero to informed in seconds. http://pubads.g.doubleclick.net/gampad/clk?id=123612991&iu=/4140/ostg.clktrk _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
