Numerical controller

Details Numerical controller Numerical controller

2007-08-08

2010-02-09

Ro, Bentsu (Department: 2837)

Electricity: motive power systems

Positional servo systems

Multiple mode systems

C318S569000, C318S601000, C318S626000

Reexamination Certificate

active

07659681

ABSTRACT:
A servomotor in a numerical controller is controlled by automatically switching to either pressure control or position control in association with the command which is smaller from among a command obtained by performing pressure feedback control and a command obtained by performing position feedback control. When switched to pressure control while moving according to a movement command, the output of the movement command is terminated halfway, and the command in the next block is executed, and pressure control of the next command is immediately started. As a result, a wasteful time is eliminated, and a cycle time of the operation can be shortened.

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Office Action mailed on May 27, 2008 and issued in corresponding Japanese Patent Application No. 2006-215867.

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