Servo motor control method and apparatus
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 10, 1988
Grant Date -
N/A
app pub date -
Oct 10, 1986
filing date -
Dec 22, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A servo motor control apparatus for a cutting machine comprises a position feedback loop, a speed feedback loop and a current feedback loop. A current command for the machine is preset to a voltage corresponding to a frictional torque when the motor starts rotation or changes rotating direction, in order to compensate for response lag of motor resulting from frictional torque. The response lag is improved and machining error is reduced by setting a value of a pertinent integral element in the controller comprising an integral element to zero. The sign of such value can be reversed at the moment that the motor operation start command or direction inversion command has changed to positive or negative from zero.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully