HEIDENHAIN ND 1300 CNC Setup - Manual (Page 29)

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CNC Setup
Proportional factor
The Proportional factor is the linear loop gain term, and amplifies the following error to drive axis motors.
As the Proportional factor term is increased, position accuracy and stability is improved. However, if the
Proportional factor is increased beyond the system’s ability to provide mechanical damping, axis oscilla-
tions can occur.
In stepper motor systems and many servo motor systems, the proportional factor can be increased incremen-
tally until the desired position accuracy is achieved. However, in systems that include high-mass stages,
or stages with significant static friction, the proportional factor might need to be increased into unstable
gain regions to achieve accurate positioning. In these cases, a derivative factor term might be required to
eliminate axis oscillation and an integral term might be required to complete moves to the target position.
Enter the required proportional factor into the Proportional factor field.
Discussion of PID Control Parameters