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Pid loop tuning – HEIDENHAIN ND 1300 CNC Setup User Manual

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PID loop tuning

PID loop tuning is an iterative process of adjusting a PID

control parameter and testing the resulting axis motion.

Some systems, such as low-mass, low-friction stepper

motor systems, are relatively easy to tune and require

only a few iterations. Other systems, such as large servo

motor systems, require many iterations that include the

adjustment of nearly every PID parameter. In either case,

changes should be made to only one parameter at a time,

in relatively small amounts, and the resulting change in

axis motion should be observed carefully.

When each axis has been tuned and tested separately,

multiple axes can be tested simultaneously and final ad-

justments made to the control parameters of individual

axes if required. Individual axes are adjusted and tested

using the CNC Setup screen. Multiple axes are tested

using the CNC test screen.

Test functions for a single axis

Test functions for multiple axes

PID control parameters for a single axis

CNC Setup and PID Loop Tuning Guide