Numerical controller controlling acceleration and...

Details Numerical controller controlling acceleration and... Numerical controller controlling acceleration and...

2011-03-29

2011-03-29

Masih, Karen (Department: 2837)

Electricity: motive power systems

Positional servo systems

Plural servomotors

C318S567000, C318S569000

Reexamination Certificate

active

07915851

ABSTRACT:
Initial speeds in the move commands for respective control axes at servo-on are determined according to parameter setting, or the comparative relationship or difference in speed among the actual speeds of the control axes so that difference in position between the control axes does not increase as the move commands are executed after the servo-on. The actual speeds of the control axes are set as initial speeds in the move commands, and a target axis is specified on the basis of the comparative relationship among their actual speeds and the other control axes are accelerated or decelerated at the acceleration or deceleration rate specified in the move commands to attain the position and speed of the target axis, so that differences in position and speed among the control axes are gradually decreased as the move commands are executed after the servo-on, thereby preventing abrupt speed changes and suppressing mechanical shocks.

REFERENCES:
patent: 2005/0151503 (2005-07-01), Yaeshima et al.
patent: 2007/0145931 (2007-06-01), Onishi et al.
patent: 2007-172394 (2007-07-01), None

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