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

An arrangement for generating command variables for control loops of a numerically controlled machine, comprising:

• an interpolator unit for providing position set points with a defined interpolator scanning rate;
• and
• a precision interpolator unit comprising:
• a scanning rate converter which increases an interpolator scanning rate of signals at its input side by a defined interpolation factor to a control loop scanning rate to generate an output signal by inserting intermediate values of the value zero in the time pattern of the control loop scanning rate in the original time pattern;
• and
• a downstream-connected digital low-pass filter receiving said output signal from said scanning rate converter to generate command variables at its output side for one or several downstream connected control loops, wherein said command variables are generated in a time pattern of said control loop with a control loop scanning rate.