Mario. wrote:
>On the speed servo... it needs to have some well-tuned pulsed power
>system, because motors simply don't move at voltages of ~0.1V :-),
>well, maybe except BDLC motors, which are already purely electronic
>drive.
>
>
>
Voltage doesn't mean much to a servo motor. Current is what m
Yes, that is true :-), But if you make some ~1000 microsteps on a
stepper, you will start to notice that no more is a "step" in
question, but rather an increase in torque, or pressure and that the
accuracy dropped down in load conditions... So, in smaller machines,
where only slow speeds are planne
Mario. wrote:
>If power rating for the slow motion would be ~10W or so, a big, fast
>microstepper stepper motor, like the Shinano Kenshi SKC83D I use could
>do the job. With 250 microsteps per electrical phase I get 12500
>microsteps per revolution, what can get you really fluent motion.
>
>But th
Hi Mario
There really is no good way to equate a stepper's digital motion with a
velocity servo's analog motion. Many of the big time control makers try
to get round this by using very high count encoders. Many of these are
more than 2Meg counts per revolution. These kinds of systems still wor
If power rating for the slow motion would be ~10W or so, a big, fast
microstepper stepper motor, like the Shinano Kenshi SKC83D I use could
do the job. With 250 microsteps per electrical phase I get 12500
microsteps per revolution, what can get you really fluent motion.
But that is the system of t
Anders Wallin wrote:
>Hi all,
>
>With a servo system using quadrature encoder feedback, what is the
>slowest speed that can reliably be used ?
>
>I would imagine that there is a problem if there are no counts between
>successive calls to the PID loop ? resulting in jerky instead of smooth
>slow
:56 +0200
> > From: Anders Wallin <[EMAIL PROTECTED]>
> > Reply-To: "Enhanced Machine Controller (EMC)"
> >
> > To: "Enhanced Machine Controller (EMC)"
> > Subject: [Emc-users] Lowest speed with servo system ?
> >
> >
> > Hi
On Thu, 28 Dec 2006, Anders Wallin wrote:
> Date: Thu, 28 Dec 2006 18:00:56 +0200
> From: Anders Wallin <[EMAIL PROTECTED]>
> Reply-To: "Enhanced Machine Controller (EMC)"
>
> To: "Enhanced Machine Controller (EMC)"
> Subject: [Emc-users] Lo
Proportional, Integral, Differential... those are the words behind PID
regulator... so, observe: it is a REGULATOR, so it does some transfer
functions, which are named above. Tuning PID regulator is a science,
but when done right it does the job properly. I would look into the
Integration part of t
Hi all,
With a servo system using quadrature encoder feedback, what is the
slowest speed that can reliably be used ?
I would imagine that there is a problem if there are no counts between
successive calls to the PID loop ? resulting in jerky instead of smooth
slow motion ?
any way to improve
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