Em...
I did mean when the servo is in-position, ie stopped.
At that point there is no dither.

Of course, if you try to move it off-position, it then activates and tries to get back into position.

I think all manufacturers make servo drives in to multiple kW or more.

Mine is 2.5 kW continuous.
Much bigger ones are available for not much more money.

30 Nm peak, 10 Nm cont.
Belt drive at 1:3, with HTD8 profile belts, 30 mm wide, taperlock pulleys.
So 90 Nm at the spindle.

The motor mount is a frame, from 30x40mm tool steel bars, and the motor is hard mounted to a steel plate 2 cm thick.
Motor is on top of HS, so heat does not distort spindle (grow it).


I use step/dir with a csmio-ip-s controller
+, enc, mpg, extra io addons


Quote Originally Posted by m_c View Post
Unless you happen to have a constant or no load, a servo has to dither. The drive only knows how much power the motor needs to maintain position, by the motor moving off position.
Modern drives are more accurate and will dither less, but they still need to dither to obtain position. The drive display may tell you it's exactly on position, but an oscilloscope on the encoder will likely tell you otherwise.

Who does a 2.5kW 220V servo and drive?
And is that 2.5Kw continuous or peak?