On 1/30/2014 7:08 PM, andy pugh wrote: > 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)
Here is a link that Keling has for a similar motor. http://www.automationtechnologiesinc.com/products-page/dc-brushless-motor/kl34bls-series-12 At the bottom of the page is a another link showing how it can be controlled with a LPT breakoutboard and Mach3. http://www.automationtechnologiesinc.com/wp-content/uploads/downloads/2014/01/2-Quadrant-BLDC-speed-driver-ver.-48ZWSK50-B-804-1.pdf They have that wired similar to what someone would for a spindle drive control via Mach3. No positioning control, just speed. What else is odd about this diagram is that the C10 board does not have an analog output on it.. So they must be configuring Mach3 to send a PWM signal to the SV pin on the drive?? But apparently it works with that driver. Dave ------------------------------------------------------------------------------ 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
