Re: [CAD_CAM_EDM_DRO] sevoo schematics
Posted by
Jon Elson
on 2001-09-24 11:04:25 UTC
jhtkcarn@... wrote:
motors, and you drive the two motor phases with constant current
supplies. To reduce power consumption, these are usually done
with switching techniques.
The simplest servo system has a DC brush motor and a position
encoder. The difference between actual position and desired position
causes power to be fed to the motor to reduce the error. It gets
a LOT more complicated after than, with velocity feedback from
a tachometer, current feedback from a current sensor, PID
algorithms, loop response, etc.
Jon
> does anyone have servo drive schematic and how it differs fromthere is a huge difference. Steppers have discrete steps in the
> stepper drives
motors, and you drive the two motor phases with constant current
supplies. To reduce power consumption, these are usually done
with switching techniques.
The simplest servo system has a DC brush motor and a position
encoder. The difference between actual position and desired position
causes power to be fed to the motor to reduce the error. It gets
a LOT more complicated after than, with velocity feedback from
a tachometer, current feedback from a current sensor, PID
algorithms, loop response, etc.
Jon