25 квітня 2012 р. 16:36 Peter C. Wallace <p...@mesanet.com> написав:

> The 7I39 wants 0 deadtime in its PWM so the 3pwmgen deadtime should bbe
> set to 0 (man hostmot2)
>

Thanks, I thought about something different - deadband. And I did not touch
the deadtime.

My recent "advances" in tuning
http://img694.imageshack.us/img694/700/screenshotbpq.png
I'm satisfied with the error, but oscillation is too bad. And it's the same
at lower velocities.

And some strange behavior: when the machine is ON, the actuator is stable.
But when I turn it OFF (F2), it starts oscillating. And the same after init
before the machine is turned on.
Enable and init strings:

net estop-out  iocontrol.0.user-enable-out => bldc.0.init =>
hm2_7i43.0.3pwmgen.00.enable
net x-is-init  bldc.0.init-done => pid.x.enable => iocontrol.0.emc-enable-in

What can be wrong?
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