Arrangement for generating command variables for control loops of a numerically controlled machine

US6772020B2 · kind B2 · utility

Assignee

• JOHANNES HEIDENHAIN GmbH · DE

Inventors

• Frieder Kohler · Lauter, DE
• Matthias Fauser · Siegsdorf, DE

Key dates

• Filing date: Jan 4, 2002
• Grant date: Aug 3, 2004
• Expiry date: Apr 25, 2022

Classification

• Technology area (CPC G): Physics
• CPC primary: G05B2219/41151
• WIPO field: Control
• WIPO sector: Instruments

Abstract

An arrangement for generating command variables for control loops of a numerically controlled machine that includes an interpolator unit for providing position set points with a defined interpolator scanning rate and a precision interpolator unit. The precision interpolator unit includes a scanning rate converter and a downstream-connected low-pass filter, wherein the precision interpolator unit is arranged downstream of the interpolator unit, which generates command variables at an output side from position set points at an input side for one or several downstream-connected control loops, wherein the precision interpolator unit generates command variables in a time pattern of the control loops with a control loop scanning rate.